[0001] The present disclosure relates to a building. More particularly, the present disclosure relates to a building constructed from precast concrete panels that are assembled at a site.
Background
[0002] There have been numerous attempts over the years to provide inexpensive inhabitable structures, low-cost housing, and temporary shelters. Conventional building construction practices generally require skilled laborers for the application of brick and mortar. Conventional building construction practices also require the use of several special tools, and equipment, such as cement mixers, to build walls, floors, and roofs, of the building. This is known to make the building construction process time and labor intensive. To add to time and labor constraints, conventional construction practices also require well experienced and knowledgeable construction supervisors to be present at the job site, almost at all times. Moreover, some of the designs do not teach the laborers how to include windows, doors, ventilations, etc., in one or more portions of the building. Mostly, the workers must summon experienced door and window installers whenever a window or door installation is needed.
Summary of the Invention
[0003] In one aspect, the disclosure relates to a building. The building includes a plurality of walls for supporting a roof structure. Each wall includes a number of precast concrete wall panels, with each precast concrete wall panel being a vertically freestanding structure. Further, each precast concrete wall panel includes a first wall section, and two second wall sections disposed spaced apart from each other and extending substantially perpendicularly from the first wall section. One of the two second wall sections is coupled to a second wall section of an adjacent precast concrete wall panel, while the other of the two second wall sections is coupled to one of a second wall section or a first wall section of an adjacent precast concrete wall panel. Moreover, each precast concrete wall panel is a pre-tensioned panel.

Brief Description of the Drawings
[0004] FIG. 1 is a plan view of a building having a base structure and a number of walls
formed from precast concrete wall panels depicted, but with a roof structure of the building
removed, in accordance with an embodiment of the present disclosure;
[0005] FIG. 2 is a first base panel of the base structure, in accordance with an embodiment
of the disclosure;
[0006] FIG. 3 is a second base panel of the base structure, in accordance with an
embodiment of the disclosure;
[0007] FIG. 4 is a third base panel of the base structure, in accordance with an
embodiment of the disclosure;
[0008] FIG. 5 is a first wall panel of the precast concrete wall panels, in accordance with
an embodiment of the disclosure;
[0009] FIG. 6 and 7 are end panels applied in one or more walls of the building, in
accordance with an embodiment of the disclosure;
[0010] FIG. 8 and 9 are end panels applied for an intermediate wall of the building, in
accordance with an embodiment of the disclosure;
[0011] FIG. 10 is a roof structure of the building, in accordance with an embodiment of
the disclosure;
[0012] FIG. 11 is a side view of the roof structure, in accordance with an embodiment of
the disclosure.
Detailed Description
[0013] Referring to FIG. 1, an exemplary building 100 from which a roof structure 102 (see FIG. 10) are removed is disclosed. Referring to FIG 1, the building 100 includes a plurality of walls, for example a first wall 110, a second wall 112, a third wall 114, a fourth wall 116, and an intermediate wall 118, and a base structure 120 for supporting each wall 110, 112,114, 116, 118. Each wall 110, 112, 114, 116, 118 includes and/or is constructed by assembling a plurality of precast concrete wall panels 124, which are vertically freestanding structures, each extending in a vertically upward direction from the base structure 120, as shown. The precast concrete wall panels are pre-tensioned panels. The walls 110, 112, 114, 116, 118 support the roof structure 102. The base structure 120 includes and is constructed by assembling a plurality of precast concrete base panels, for

example, one or more first base panels 130 (two shown in the FIG. 1) and one or more second base panels 132 (two shown in FIG. 1).
[0014] Referring to FIG. 2, the first base panel 130 may include a base section 136 having a first base portion 138 and a second base portion 140 co-planar with the first base portion 138, and a pair of rails, for example, a first rail 142 and a second rail 144 extending substantially perpendicular to the base section 136 and disposed spaced apart from each other and thereby defining a channel 146 (herein after referred as a first channel 146) between them. The first channel 146 is configured to receive one or more of the plurality of the precast concrete wall panels 124. The first base panel 130 may include a first lateral end 148, and a second lateral end 150. Further, as shown in FIG. 2, the first base portion 138 may extend from the first lateral end 148 to the second base portion 140, and may include a length 'LI' longer than a length 'L2' of the second base portion 140. Also, a width 'Wl of the first base portion 138 may be greater than a width 'W2' of the second base portion 140. The second base portion 140 may extend from the first base portion 138 to the second lateral end 150. Further, the second base portion 140 may include a first longitudinal end 152 disposed at a distance from a first longitudinal end 154 of the first base portion 138. Also, a second longitudinal end 156 of the second base portion 140 may be disposed at a distance from a second longitudinal end 158 of the first base portion 138. The first rail 142 may extend along the entire length 'LI' of the first base portion 138, and may be disposed at a distance from the first lateral end 148. Also, the first rail 142 may extend substantially perpendicularly from the first base portion 138. Also, the second rail 144 may be disposed at an interface of the first base portion 138 and the second base portion 140, may extend along the entire length 'LI' of the first base portion 138. Also, the second rail 144 may be disposed substantially perpendicular to both the first base portion 138 and the second base portion 140.
[0015] Referring to FIG. 3, the second base panel 132 may include a base section 160 having a first base portion 162, a second base portion 164, and a pair of rails, for example, a first rail 166 and a second rail 168. Each of the first rail 166 and the second rail 168 may extend substantially perpendicular to the base section 160, and may be disposed spaced apart from each other, defining a channel 170 (herein after referred as a second channel 170) between them. The second channel 170 is configured to receive one or more of the plurality of the precast concrete wall panels 124. The second base panel 132 includes a first lateral end 172 and a second lateral end 174. The first base portion 162 may extend from the first

lateral end 172 to the second base portion 164 and includes a length 'L3' smaller than a length 'L4' of the second base portion 164. Also, a width 'W3' of the first base portion 162 may be greater than a width 'W4' of the second base portion 164. The second base portion 164 may extend from the first base portion 162 to the second lateral end 174. Further, the second base portion 164 may include a first longitudinal end 176 disposed at a distance from a first longitudinal end 178 of the first base portion 162. Also, a second longitudinal end 180 of the second base portion 164 may be disposed at a distance from a second longitudinal end 182 of the first base portion 162.
[0016] The first rail 166 may extend along the entire length 'L3' of the first base portion 162, and may be disposed at a distance from the first lateral end 172. The first rail 166 may extend substantially perpendicular from the first base portion 162. Also, the second rail 168 may be disposed at an interface of the first base portion 162 and the second base portion 164, may extend beyond both the first longitudinal end 178 and the second longitudinal end 182 of the first base portion 162. The second rail 168 may be disposed substantially perpendicular to both the first base portion 162 and the second base portion 164. As seen from FIG 3, a length of the second rail 168 is greater than a length of the first rail 166, while the length of the second rail 168 is smaller than the length 'L4' of the second base portion 164. Therefore, one end of the second rail 168 may be disposed at distance from the first longitudinal end 176 of second base portion 164 to define a first cutout 184, and other end of the second rail 168 may be disposed at distance from the second longitudinal end 180 of the second base portion 164 to define a second cutout 186.
[0017] Again referring to FIG. 1, one or more first base panels 130 and one or more second base panels 132 are arranged and assembled to form the base structure 120 for outer walls of the building 100, for example the first wall 110, the second wall 112, the third wall 114, and the fourth wall 116 of the building 100. As shown, two first base panels 130 are arranged and coupled with the two second base panels 132 for forming a substantially rectangular, base structure 120 of the building 100. As shown, each first base panel 130 may be coupled with the two second base panels 132, and similarly each second base panel 132 may be coupled with two first base panels 130 to construct the rectangular, base structure 120.
[0018] In an assembled position of the first base panel 130 (supporting the first wall 110) with the second base panel 132 (supporting the second wall 112), a longitudinal end, for example, the first longitudinal end 154 of the first base portion 138 of the first base panel

130 may be abutted with the second base portion 164 of the second base panel 132. Further,
the second longitudinal end 182 of the first base portion 162 of the second base panel 132
may be abutted with first base portion 138 of the first base panel 130 such that second rail
144 of the first base panel 130 may abut both the first rail 166 and the second rail 168 of the
5 second base panel 132. Also, the first rail 142 of the first base panel 130 may abut the
second rail 168 of the second base panel 132. Further, the first longitudinal end 152 of the second base portion 140 of the first base panel 130 may abut the first lateral end 172 of the second base panel 132. [0019] Similarly, another first base panel 130 (supporting the third wall 114) is assembled
10 with the second base panel 132 (supporting the second wall 112) such that the second
longitudinal end 158 of the first base portion 138 of another first base panel 130 is abutted to the second base portion 164 of the second base panel 132, and the first longitudinal end 178 of the first base portion 162 of the second base panel 132 may abut the first base portion 138 of the another first base panel 130 as described above in relation to the assembly of the
15 first base panel 130 with the second base panel 132. Also, the second longitudinal end 156
of the second base portion 140 of another base panel 130 may abut the first lateral end 172 of the second base panel 132.
[0020] Similarly, another second base panel 132 (supporting the fourth wall 116) may be assembled with the first base panel 130 (supporting the first wall 110) and the another first
20 base panel (supporting the third wall) to form the rectangular, base structure 120. In so
doing, the second lateral end 150 of each first base panel 130 and the first lateral end 172 of each second base panel 132 may be disposed at an inner periphery of the base structure 120, while the first lateral end 148 of each first base panel 130 and the second lateral end 174 of each second base panel 132 may be arranged at an outer periphery of the base structure 120.
25 [0021] In some implementations, the base structure 120 may include one or more third
base panels 190 that may form a base for the intermediate wall 118 of the building 100 (as shown in FIG. 1). Referring to FIG. 4, the third base panel 190 may include a base section 192 and a pair of rails, for example a first rail 194 and a second rail 196, extending substantially perpendicular to the base section 192. The first rail 194 and the second rail
30 196 may be disposed spaced apart from each other, defining a channel (herein after referred
as a third channel 198) between them. The third channel 198 is configured to receive one or more of the plurality of the precast concrete wall panels 124. The third base panel 190
6

includes a first lateral end 200, a second lateral end 202, a first longitudinal end 204, and a second longitudinal end 206.
[0022] The first rail 194 may be disposed at a distance from the first lateral end 200 of the
base section 192, and may extend beyond both the first longitudinal end 204 and the second
5 longitudinal end 206 of the base section 192. Further, the second rail 196 may be disposed
at a distance from the second lateral end 202 of the base section 192, and may extend beyond both the first longitudinal end 204 and the second longitudinal end 206 of the base section 192. Thus, lengths of both the first rail 194 and the second rail 196 may be greater than a length ‘L5’ of the base section 192. In an embodiment, the length ‘L5’ of the base section
10 192 of the third base panel 190 may be equal to the length ‘L3’ of first base portion 162 of
the second base panel 132 (as shown in FIG. 1). In certain other implementations, the length ‘L5’ of the base section 192 of the third base panel 190 may be equal to the length ‘L2’ of the second base portion 140 of the first base panel 130. [0023] Again referring to FIG. 1, in an assembled position of the third base panel 190, the
15 first longitudinal end 204 may abut the second lateral end 150 the first base panel 130. Also,
a portion of both the first rail 194 and the second rail 196 may rest on the second base portion 140 of the first base panel 130 and may contact the second rail 144 of the first base panel 130. Further, the second longitudinal end 206 may abut the second lateral end 150 another first base panel 130 (supporting the third wall 114). Also, a portion of both the first rail 194
20 and the second rail 196 may rest on the second base portion 140 of another first base panel
130, and may contact the second rail 144 of the another first base panel 130. Although, the third base panel 190 is arranged and assembled with the two first base panels 130, it may be appreciated that the third base panel 190 may also be arranged and assembled with the two second base panels 132. In such a case, the longitudinal ends 204, 206 of the base section
25 192 of the third base panel 190 may abut the respective first lateral ends 172 of the two
second base panels 132 and the rails 194, 196 of the third base panel 190 may abut the respective first rails 166 of the second base panels 132.
[0024] Referring to FIGS. 1, 5, 6 and 7, the plurality of walls 110, 112, 114, 116, 118 are now discussed. The structure of the first wall 110 and the second wall 112, and the
30 connection therebetween, is described, and it may be appreciated that the structure of the
third wall 114 will be similar to the structure of the first wall 110, and the structure of the fourth wall 116 will be similar to the structure of the second wall 112. Also, a connection between the first wall 110 with the fourth wall 116, the fourth wall 116 with the third wall
7

114, and the third wall 114 with the second wall 112, will be similar to the connection of the first wall 110 with the second wall 112.
[0025] Each of the first wall 110, the second wall 112, the third wall 114, the fourth wall
116, and the intermediate wall 118 is formed by assembling the plurality of the precast
5 concrete wall panels 124 with each other. A construction or structure of the first wall 110
and the second wall 112 is described now. As shown in FIG. 1, the first wall 110 is formed by one or more first precast concrete wall panels 124a (or simply, first wall panels 124a, hereinafter) of the plurality of precast concrete wall panels 124 (four shown in FIG. 1). Further, the second wall 112 is formed by one or more of first wall panels 124a and one or
10 more second precast concrete wall panels 124b (or simply, second wall panels 124b,
hereinafter) of the plurality of precast concrete wall panels 124 (one first wall panel 124a and two second wall panel 124b is used to form wall 112 as shown in FIG. 1). The one or more second wall panels 124b may form one or more end panels of the second wall 112, for example, a first end panel 250 and a second end panel 252 of the second wall 112. The end
15 panels 250, 252 may include one or more structural features that may facilitate an assembly
and connection of one wall with another wall, for example, the first end panel 250 may facilitate an assembly and a connection of the first wall 110 with the second wall 112. [0026] Referring to FIG. 5, the first wall panel 124a is shown. The first wall panel 124a includes a first wall section 500 and two second wall sections 502, 504 disposed spaced
20 apart from each other defining a gap 506 therebetween. Each of the two second wall
sections 502, 504 extends substantially perpendicularly from the first wall section 500. Both the second wall sections 502, 504 extend in substantially a same direction from the first wall section 500. The first wall panel 124a further includes a first longitudinal end 510, a second longitudinal end 512, a first lateral end 514, and a second lateral end 516. In an exemplary
25 embodiment, the second wall section 502 may be disposed at the first lateral end 514, while
the second wall section 504 may be disposed at the second lateral end 516. Each second wall section 502, 504 may extend from the first longitudinal end 510 to the second longitudinal end 512. [0027] The first longitudinal end 510 may be configured to abut at least one of the
30 plurality of base panels, for example the first base panel 130, and configured to be received
within an associated channel, for example, the first channel 146. Further, each of the second wall sections 502, 504 includes a plurality of first holes 520 for facilitating a coupling of the first wall panel 124a to an adjacent first wall panel 124a or to an adjacent second wall
8

panel 124b. The plurality of first holes 520 may be linearly arrayed along a height of each
of the second wall sections 502, 504. Further, the first wall panel 124a may include a
plurality of second holes 522 formed in the first wall section 500 for facilitating a coupling
of the first wall panel 124a to the roof structure 102. The second holes 522 may be linearly
5 arrayed between the first lateral end 514 and the second lateral end 516. In an embodiment,
the second holes 522 may be disposed proximate to the second longitudinal end 512 of the first wall panel 124a than to the first longitudinal end 510. The second longitudinal end 512 may abut the roof structure 102 in an assembly of the walls 110, 112, 114, 116, 118 with the roof structure 102.
10 [0028] Additionally, or optionally, the first wall section 500 may include a plurality of
third holes 524 arranged along a height of the first wall section 500, adjacent to the second wall section 502. Similarly, a plurality of fourth holes 526 may be arranged along the height of the first wall section 500, adjacent to the second wall section 504. In an embodiment, a number of each of the third holes 524 and the fourth holes 526 may be equal to the number
15 of first holes 520. Also, each of the third holes 524 and the fourth holes 526 may be
distributed on the first wall section 500 according to a distribution of the plurality of the first holes 520 on each of the second wall sections 502, 504. It may be noted that each of the first holes, second holes, third holes, and the fourth holes are meant to facilitate connection between the different precast concrete wall panels 124 of the building 100,
20 and/or between the precast concrete wall panels 124 and the base/roof panels of the building
100. However, variations may be contemplated where one or more of each of the first holes 520, the second holes 522, the third holes 524, and the fourth holes 526 may be omitted. [0029] Referring to FIG. 6, the first end panel 250 of the second wall panel 124b is shown. The first end panel 250 may be similar in form to the first wall panel 124a, and thus may
25 include a first wall section 600, and two second wall sections 602, 604, a gap 606, a first
longitudinal end 610, a second longitudinal end 612, a first lateral end 614, a second lateral end 616, a plurality of first holes 620, a plurality of second holes 622, a plurality of third holes 624, and a plurality of fourth holes 626. In an embodiment, the first holes 620 formed on the second wall section 604 may be omitted. In another embodiment, the fourth holes
30 626 may also be omitted. It may be appreciated that more variations may be contemplated
where one or more of each of the first holes 620, the second holes 622, the third holes 624, and the fourth holes 626 may be omitted.
9

[0030] Additionally, the first end panel 250 may differ from the first wall panel 124a in
some respects. For example, the second wall section 604 may be smaller in length in
comparison to the other second wall section 602. The second wall section 604 may also be
smaller in length in comparison to a length of the first wall section 600. In an embodiment,
5 and as shown, at either ends of the second wall section 604, the second wall section 604
may stop short from the respective ends of the first wall section 600. Furthermore, the first end panel 250 may include a slit 630.
[0031] The slit 630 may be formed at the first longitudinal end 610, into the first wall section 600, and may be disposed proximal to the second wall section 604. The slit 630
10 may extend, linearly, from the first longitudinal end 610 into a length of the first wall section
600 of the second wall panel 124b (i.e., the first end panel 250), and may include dimensions corresponding to dimensions of the rails of a base panel of the base structure 120, for example a second rail 144 of the first base panel 130. [0032] Referring to FIG. 7, the second end panel 252 of the second wall panel 124b is
15 shown. The second end panel 252 may be similar in form to the first end panel 250, and
thus may include a first wall section 700, and two second wall sections 702, 704, a gap 706, a first longitudinal end 710, a second longitudinal end 712, a first lateral end 714, a second lateral end 716, a plurality of first holes 720, a plurality of second holes 722, a plurality of third holes 724, and a plurality of fourth holes 726. In an embodiment, the first holes 720
20 formed on the second wall section 702 may be omitted. In another embodiment, the fourth
holes 726 may also be omitted. It may be appreciated that more variations may be contemplated where one or more of each of the first holes 720, the second holes 722, the third holes 724, and the fourth holes 726 may be omitted. Further, the second end panel 252 may include a slit 730.
25 [0033] Additionally, the second end panel 252 may differ from the first end panel 250 in
some respects. For example, the second wall section 702 may be smaller in length in comparison to the other second wall section 704. The second wall section 702 may also be smaller in length in comparison to a length of the first wall section 700. In an embodiment, and as shown, at one (or both) ends of the second wall section 702, the second wall section
30 702 may stop short from the respective ends of the first wall section 700. Furthermore, the
slit 730 may be disposed in proximity to the second wall section 702. Therefore, it may be appreciated that the second end panel 252 includes a configuration that is symmetrically opposed to the first end panel 250. As shown in FIG. 1, the second wall 112 may be formed
10

by coupling one first wall panel 124a and two second wall panels 124b. However, it may
be appreciated that the second wall 112 may include any number of first wall panels 124a
and/or any number of second wall panels 124b. The second wall panels 124b form end
panels (i.e., first end panel 250 and second end panel 252) of the second wall 112, each
5 being coupled with the wall panels (e.g., the first wall panels 124a) of the first wall 110 and
(e.g., the first wall panels 124a) of the third wall 114.
[0034] Referring again to FIG. 1, an assembly of the first wall 110, second wall 112, third wall 114, the fourth wall 116, the intermediate wall 118, and the base structure 120 is now discussed. As exemplarily shown, the first wall 110 includes four first wall panels 124a,
10 and the four first wall panels 124a may be serially and linearly arranged. Each of the first
wall panels 124a may be almost entirely received into the first channel 146 defined between the first rail 142 and the second rail 144 of the first base panel 130. Also, each first wall panel 124a may be arranged within the first channel 146 such that the first longitudinal end 510 of each first wall panel 124a may abut the first base portion 138 of the first base panel
15 130. In an embodiment, two consecutive first wall panels 124a may be arranged and
coupled to each other in such a manner that the first wall section 500 of one first wall panel 124a may be disposed opposite to the first wall section 500 of the other first wall panel. In such a case, the first wall section 500 of one first wall panel 124a may abut or be in proximity to the first rail 142 (or the second rail 144) of the first base panel 130, while the first wall
20 section 500 of the other first wall panel 124a may abut or be in proximity to the second rail
144 (or the first rail 142) of the first base panel 130. Therefore, in such implementations, consecutive first wall panels 124a may be coupled to each other by coupling the second wall section 502 (or the second wall section 504) of one first wall panel 124a to the second wall section 502 (or the second wall section 504) of the other first wall panel 124a. In so doing,
25 the second wall section 502 (or the second wall section 504) of one first wall panel 124a
may be disposed within the gap 506 of the adjacent first wall panel 124a, and the second wall section 502 (or the second wall section 504) of the adjacent first wall panel 124a may be in turn disposed within the gap 506 of the one first wall panel 124a. In such a case, the second wall section 502 (or the second wall section 504) of one first wall panel 124a may
30 abut the first wall section 500 of the other first wall panel 124a. In an embodiment, the
second wall section 502 (or the second wall section 504) of the first wall panel 124a may abut the second wall section 502 (or the second wall section 504) of the adjacent first wall panel 124a, as well. In certain other implementations, the second wall section 502 (or the
11

second wall section 504) of the first wall panel 124a may be disposed at a distance from the
second wall section 502 (or the second wall section 504) of the adjacent first wall panel
124a, thereby forming a substantially rectangular cavity (not shown) therebetween. In such
a case, a vibration absorbing material may be provided within the rectangular cavity (not
5 shown). Further, the first holes 520 formed on the second wall section 502 (or second wall
section 504) of the one first wall panel 124a may be aligned with the first holes 520 formed on the second wall section 502 (or the second wall section 504) of other first wall panel 124a. [0035] In an embodiment, two consecutive first wall panels 124a may be arranged and
10 coupled to each other in such a manner that the first wall section 500 of one first wall panel
124a may be disposed at the same side as the first wall section 500 of the other first wall panel. In such a case, the first wall section 500 of one first wall panel 124a may abut or be in proximity to the first rail 142 (or the second rail 144) of the first base panel 130, while the first wall section 500 of the other first wall panel 124a may also abut or be in proximity
15 to the first rail 142 (or the second rail 144) of the first base panel 130. Therefore, in such
implementations, consecutive first wall panels 124a may be coupled to each other by coupling the second wall section 502 (or the second wall section 504) of one first wall panel 124a to the second wall section 502 (or the second wall section 504) of the other first wall panel 124a. In so doing, the second wall section 502 (or the second wall section 504) of
20 one first wall panel 124a may be disposed outside the gap 506 of the adjacent first wall
panel 124a. Further, the second wall section 502 (or the second wall section 504) of one first wall panel 124a may be abutted or engaged with the second wall section 502 (or the second wall section 504) of the adjacent first wall panel 124a. In certain other implementations, the second wall section 502 (or the second wall section 504) of the first
25 wall panel 124a may be disposed at a distance from the second wall section 502 (or the
second wall section 504) of the adjacent first wall panel 124a, thereby forming a substantially rectangular cavity (not shown) therebetween. In such a case, a vibration absorbing material may be provided within the rectangular cavity (not shown). Further, the first holes 520 formed on the second wall section 502 (or second wall section 504) of the
30 one first wall panel 124a may be aligned with the first holes 520 formed on the second wall
section 504 (or the second wall section 502) of other first wall panel 124a.
[0036] Further, as exemplarily shown, the second wall 112 may include a first wall panel 124a, and two second wall panels 124b, for example the first end panel 250 and the second
12

end panel 252, serially and linearly arranged into the second channel 170 of the second base
panel 132. The two second wall panels 124b may form the end panels of the second wall
112. In the illustrated embodiment, one first wall panel 124a is arranged between the first
end panel 250 and the second end panel 252. Although, only one first wall panel 124a is
5 shown between the first end panel 250 and the second end panel 252, it may be appreciated
that more than one first wall panel 124a may be arranged between the first end panel 250 and the second end panel 252. In such a case, two consecutive first wall panels 124a may be arranged and coupled together in a similar manner as two consecutive first wall panels 124a of the first wall 110 are arranged and coupled together as described above.
10 [0037] As can be seen from FIG. 1, the first wall panel 124a is entirely received within
the second channel 170, while the end panels 250, 252 are partly received inside the second channel 170. In an embodiment, the first end panel 250 may be partly received in the first channel 146 of the first base panel 130 associated with the first wall 110. The first end panel 250 may be arranged on the base structure 120 such that the first wall section 600 of the
15 first end panel 250 may abut or be in proximity to the second rail 168 of the second base
panel 132. In such a case, the first longitudinal end 610 of the first end panel 250 may contact the base structure 120. Further, the slit 630 may receive the second rail 144 of the first base panel 130. In so doing, the first longitudinal end 610 and the first wall section 600 may abut the first base portion 138 of the first base panel 130 and the first base portion 162
20 of the second base panel 132. Also, the second wall section 604 of the first end panel 250
may rest on the first rail 142 of the first base panel 130. Further, the second wall section 604 may abut the first wall section 500 of the first wall panel 124a of the first wall 110 and the first wall section 600 of the first end panel 250 may abut the second wall section 502 of the first wall panel 124a of the first wall 110. In such a case, the fourth holes 626 may be
25 aligned with the first holes 520 formed on the second wall section 502. Also, the first holes
620 formed on the second wall section 604 may be aligned with the third holes 524. [0038] Further, in an embodiment, the second end panel 252 may be partly received inside the first channel 146 of the first base panel 130 associated with the third wall 114. The second end panel 252 may be arranged on the base structure 120 such that the first wall
30 section 700 of the second end panel 252 may abut or be in proximity to the second rail 168
of the second base panel 132. In such a case, the first longitudinal end 710 of the second end panel 252 may contact the base structure 120. Further, the slit 730 may receive the second rail 144 of the first base panel 130. In so doing, the first longitudinal end 710 and
13

the first wall section 700 may abut the first base portion 138 of the first base panel 130 and
the first base portion 162 of the second base panel 132. Also, the second wall section 702
of the second end panel 252 may rest on the first rail 142 of the first base panel 130. Further,
the second wall section 702 may abut the first wall section 500 of the first wall panel 124a
5 of the third wall 114 and the first wall section 700 of the second end panel 252 may abut the
second wall section 504 of the first wall panel 124a of the third wall 114. In such a case, the third holes 724 may be aligned with the first holes 520 formed on the second wall section 504. Also, the first holes 720 formed on the second wall section 702 may be aligned with the fourth holes 526.
10 [0039] Further, in an embodiment, the first end panel 250 and the adjacent first wall panel
124a may be arranged and coupled to each other in such a manner that first wall section 600 of the first end panel 250 may be disposed opposite to the first wall section 500 of the first wall panel 124a. In such a case, the first wall section 500 of the first wall panel 124a may abut or be in proximity to the first rail 166 of the second base panel 132. In such
15 implementations, the first wall panel 124a and the first end panel 250 may be coupled to
each other by coupling the second wall section 502 of the first wall panel 124a to the second wall section 602 of the first end panel 250. Thus, the second wall section 502 may be disposed within the gap 606 of the first end panel 250, while the second wall section 602 may be in turn disposed within the gap 506. In such a case, the second wall section 502
20 may abut the first wall section 600. In an embodiment, the second wall section 502 may
also abut the second wall section 602. In certain other implementations, the second wall section 502 may be disposed at a distance from the second wall section 602, thereby forming a substantially rectangular cavity (not shown) therebetween. In such a case, a vibration absorbing material may be provided within the rectangular cavity (not shown). Further, the
25 first holes 520 formed on the second wall section 502 may be aligned with the first holes
620 formed on the second wall section 602. In this manner, the first end panel 250 may be coupled with an adjacently located the first wall panel 124a by coupling the second wall section 602 to the second wall section 502. [0040] In certain implementations, the first end panel 250 and the adjacent first wall panel
30 124a may be arranged and coupled to each other in such a manner that the first wall section
500 may be disposed at the same side as the first wall section 600. In such a case, in an embodiment, the first wall section 500 may abut or be in proximity to the second rail 168. Therefore, in such implementations, first wall panel 124a may be coupled to the first end
14

panel 250 by coupling the second wall section 504 to the second wall section 602. In so
doing, the second wall section 504 of the first wall panel 124a may be disposed outside the
gap 606. Further, the second wall section 504 may be abutted or engaged with the second
wall section 602. In certain other implementations, the second wall section 504 may be
5 disposed at a distance from the second wall section 602, thereby forming a substantially
rectangular cavity (not shown) therebetween. In such a case, a vibration absorbing material may be provided within the rectangular cavity (not shown). Further, the first holes 620 formed on the second wall section 602 may be aligned with the first holes 520 formed on the second wall section 504. In this manner, the first end panel 250 may be coupled with
10 an adjacently located the first wall panel 124a by coupling the second wall section 602 to
the second wall section 502.
[0041] The second end panel 252 may be coupled to an adjacently located first wall panel 124a by coupling the second wall section 704 to one or the two second wall sections 502, 504 in a similar manner as the first end panel 250 is coupled with the first wall panel 124a
15 as described above. Therefore, in an embodiment, the second wall section 504 may be
coupled with the second wall section 704, and may be disposed within the gap 706. Further, in such a case, the first holes 720 formed on the second wall section 704 may be aligned with the first holes 520 formed on the second wall section 504. In another embodiment, the second wall section 502 may be coupled with the second wall section 704, and may be
20 disposed outside the gap 706. Further, in such a case, the first holes 720 formed on the
second wall section 704 may be aligned with the first holes 520 formed on the second wall section 502. In an embodiment, the second wall 112 may include only two precast concrete wall panels 124. In such a case, the first end panel 250 and the second end panel 252 may be directly coupled to each other to form the second wall 112.
25 [0042] It may be appreciated that a connection of the first wall 110 with the fourth wall
116 may be similar to the connection of the second wall 112 with the third wall 114, and a connection of the third wall 114 with the fourth wall 116 may be similar to the connection of the first wall 110 with the second wall 112. In this manner the outer walls of the building 100 are formed and connected to each other. Also, one of the plurality of precast concrete
30 wall panels 124 may include one or more openings (not shown) to define a doorway and/or
a window of the building 100. Further, the intermediate wall 118 may divide a space formed by the outer walls into two rooms of the building 100. The one or more precast concrete
15

wall panels 124 of the intermediate wall 118 may include one or more openings (not shown) to provide an accessway between the two rooms.
[0043] A structure and assembly of the intermediate wall 118 will now be discussed. The
intermediate wall 118 may rest on the third base panel 190, and may be received inside the
5 third channel 198. Therefore, each of the plurality of precast concrete wall panels 124 may
be disposed between the first rail 194 and the second rail 196, and may abut one or more of the rails 194, 196. The intermediate wall 118 may include a configuration similar to the configuration of the second wall 112. Thus, the intermediate wall 118 may be formed by assembling a first end panel 250 to an end of a first wall panel 124a, and by assembling a
10 second end panel 252 to the other end of the same first wall panel 124a. As shown in the
exemplary embodiment of FIG. 1, a portion (including the second wall section 604) of the first end panel 250 may be received/engaged between consecutive first wall panels 124a of the first wall 110. In so doing, the fourth holes 626 of the first end panel 250 may be aligned with the first holes 520 of a second wall section 502, 504 of each of the consecutive first
15 wall panels 124a. Moreover, the first holes 620 may be aligned with the third holes 524 of
one of the first wall panels 124a of the consecutive first wall panels 124a. Similarly, a portion (including the second wall section 702) of the second end panel 252 may be received/engaged between consecutive first wall panels 124a of the third wall 114. In so doing, the third holes 724 of the second end panel 252 may be aligned with the first holes
20 520 of a second wall section 502, 504 of each of the consecutive first wall panels 124a.
Moreover, the first holes 720 may be aligned with the fourth holes 526 of one of the first wall panels 124a of the consecutive first wall panels 124a.
[0044] Referring to FIG. 8 and 9, certain variations in the design of the first end panel 250 and the second end panel 252, for the intermediate wall 118, are respectively illustrated.
25 FIG. 8 relates to a first end panel 250` (similar to first end panel 250), while FIG. 9 relates
to a second end panel 252` (similar to second end panel 252). For ease in understanding, reference numerals for the first end panel 250` have been largely kept the same vis-à-vis like parts for first end panel 250, and, similarly, reference numerals for the second end panel 252` have been largely kept the same vis-à-vis like parts for second end panel 252.
30 However, variations and differences in design and features of the first end panel 250` and
the second end panel 252` have been annotated with different reference numerals. [0045] In further detail, the first end panel 250` includes a second wall section 604`, similar to second wall section 604 (FIG. 6), but which extends substantially perpendicularly
16

from the first wall section 600, in both directions, thus defining a T-junction at the interface
between the first wall section 600 and the second wall section 604`. Similarly, the second
end panel 252` includes a second wall section 702` (FIG. 9), similar to the second wall
section 702, but which extends substantially perpendicularly from the first wall section 700,
5 in both directions, thus defining a T-junction at the interface between the first wall section
700 and the second wall section 702`.
[0046] Referring to FIG. 10 and 11, a roof structure 102 is discussed. The roof structure 102 includes a number of precast concrete roof panels, namely a first roof panel 802, a second roof panel 802`, and a third roof panel 806. Each of the first roof panel 802, second
10 roof panel 802`, and the third roof panel 806, is similar to one or more of the walls 110, 112,
114, 116, 118. For example, each roof panel 802, 802`, 806 includes a C-shaped structure with a first wall section 850 and a two second wall sections 852, 854 (see exemplary markings for first roof panel 802). The two second wall sections 852, 854 extend substantially perpendicularly from the first wall section 850. As shown in the orientation
15 of FIG. 10, the first roof panel 802, second roof panel 802`, and the third roof panel 806,
are arranged planarly, one after the other, with the order of arrangement from left to right being as follows: the first roof panel 802, the third roof panel 806, and the second roof panel 802`, as shown. Therefore, the third roof panel 806 sits in between the first roof panel 802 and the second roof panel 802`.
20 [0047] One of the second wall sections (i.e., second wall section 852) of the first roof
panel 802 includes a thickened wall 856 that has a thickness greater than a thickness of the other second wall section 854 of the first roof panel 802. For example, in the orientation of the roof structure 102 provided in FIG. 10, the second wall section (i.e., second wall section 852) disposed on the left of the first roof panel 802 includes the thickened wall 856. On
25 similar lines, the second wall section (see second wall section 852`) disposed on the right of
the second roof panel 802` includes a thickened wall 856`, as well. In so doing, the first roof panel 802 and the second roof panel 802` are arranged in symmetry to each other, about the third roof panel 806. [0048] In an embodiment, each of the first roof panel 802, the second roof panel 802`, and
30 the third roof panel 806, includes a number of holes 858 (only some holes 858 marked for
simplicity). The holes 858 may be used to insert and extend fasteners, such as studs or bolts (not shown), between the roof structure 102 and the precast concrete wall panels 124, so as to rigidly couple the roof structure 102 to the precast concrete wall panels 124. Accordingly,
17

said holes 858 may be formed at appropriate locations on the roof structure 102, and,
correspondingly, holes may be formed into the precast concrete wall panels 124 as well. As
an example, holes in the roof panels 802, 802`, 806 may be through-holes, extending across
the thickness of the first wall sections 850 of the roof panels 802, 802`, 806, while
5 corresponding holes 350 (see FIGS. 5, 6, 7, 8, and 9) in the precast concrete wall panels 124
may extend into a length of the precast concrete wall panels 124 to allow fasteners to pass through from the roof panels 802, 802`, 806 into the precast concrete wall panels 124 to secure the roof panels 802, 802`, 806 to the precast concrete wall panels 124. As shown in FIG. 10, multiple holes 858 may be provided to allow passage of multiple fasteners through
10 the roof panels 802, 802`, 806 to couple the precast concrete wall panels 124.
[0049] In an embodiment, the holes 858 (and 350) may be formed as part of the pre-casting procedure (i.e., when the precast concrete roof panels 802, 802`, 806 or precast concrete wall panels 124 are being formed). But, alternatively, said holes 858, 350 may be formed in situ. For example, during installation, once the roof structure 102 is placed atop
15 the precast concrete wall panels 124, holes may be drilled into one or more of the roof panels
and further into corresponding portions encountered of the wall panels, so as to define holes 858, 350, and so that fasteners may be disposed therethrough to couple the roof structure 102 to the precast concrete wall panels 124. To drill the holes 858, 350 a conventional drill machine (not shown) may be applied.
20 [0050] Additionally, or alternatively, a connection between the wall panels and the roof
panels 802, 802`, 806 may be established by use of one or more bent brackets 870 (see exemplary cutout depictions provided in FIG. 10) (not all bent brackets are annotated to save simplicity). As an example, each bent bracket 870 may include a first bent portion and a second bent portion bent away from the first bent portion. In assembly, the first bent
25 portion may be coupled to a first wall section (i.e., to one of the first wall section 500, 600,
700) of a corresponding wall panel, while the other, second bent portion may be coupled to an adjacently arranged first wall section 850 of a corresponding roof panel 802, 802`, 806. [0051] The building 100 may include one or more couplers 900 (see FIG. 1) for coupling the second wall section (e.g., second wall section 502) of one precast concrete wall panel
30 (e.g., the first wall panel 124a) with either the second wall section (e.g., second wall section
704) or the first wall section (e.g., first wall section 700) of an adjacent precast concrete wall panel (e.g., second wall panel 124b). The couplers 900 may include one or more of a grouter, a fastener, a bolt, a rivet, a screw, and the like, that may be passed through the holes
18

858, 350 or through the holes (e.g., first holes 520) of one second wall section (e.g., second wall section 504) and holes (e.g., first holes 720) of an adjacently arranged, second wall section (e.g., second wall section 704) to couple the second wall sections (e.g., second wall sections 504, 704), and thus the wall panels (e.g., panels 124a, 252) with each other. 5
Industrial Applicability
[0052] During installation of the building 100, a foundation of the building may be first laid out over a ground surface by assembling the base panels 130, 132, 190, of the base structure 120 together, as has been disclosed above. Thereafter, the first wall 110, second
10 wall 112, third wall 114, fourth wall 116, and the intermediate wall 118, may be assembled
with the base panels 130, 132, 190, of the base structure 120. In particular, the first wall 110 may be assembled within the first channel 146 of the first base panel 130, the second wall 112 may be assembled within the second channel 170 of the second base panel 132. The third wall 114 and the fourth wall 116 may be assembled likewise. The intermediate
15 wall 118 may be assembled within the third channel 198 of the third base panel 190 that
connects to the oppositely disposed base panels 130 (see FIG. 1). Thereafter, the first wall 110 may be coupled to the second wall 112, the intermediate wall 118, and the fourth wall 116, while the third wall 114 may be likewise coupled to the second wall 112, intermediate wall 118, and to the fourth wall 116. If required so, concrete may be poured into the
20 channels 146, 170, 198 so that the walls 110, 112, 114, 116, 118 may be fully and
permanently retained within the base panels 130, 132, 190 once the concrete sets in place. [0053] Once the assembly of the base panels 130, 132, 190 with the walls 110, 112, 114, 116, 118, is complete, the walls 110, 112, 114, 116, 118, may be coupled to one another, as discussed above. The roof structure 102 may be then placed atop the walls 110, 112, 114,
25 116, 118. For example, each roof panel 802, 802`, 806 of the roof structure 102 may be
placed and assembled over the walls 110, 112, 114, 116, 118. Next, fasteners may be driven through the holes formed in the roof panels 802, 802`, 806 so as to couple the roof panels 802, 802`, 806 to (and over) the walls 110, 112, 114, 116, 118. Once the roof structure 102 is set, if required so, a layer of concrete 890 (see FIG. 11) may be poured over the roof
30 structure 102, so as to strengthen and form a foundation for stationing another building, such
as building 100, over building 100.
[0054] As discussed above, the building 100 of the present disclosure is formed by coupling and assembling precast structures, and thus need not include use of conventional
19

brick and mortar (and related procedures involving cement mixing, brick conveyance and laying, etc.), saving time to build the building 100. With the omission of use of conventional brick and mortar, the effort to construct the building 100 is also reduced, thus allowing even moderately skilled labor and technicians to build the building 100. With less time and effort, it becomes also possible to build a larger number of buildings, such as building 100, in shorter time-spans. The building 100 of the present disclosure may find application in a variety of environments, for example, as a makeshift shelter for homeless people, homes for the poor, temporary refuge for military applications, etc.
[0055] Further, it may be noted that the C-shaped profile of each precast concrete wall panels 124 being pre-tensioned panels allows the precast concrete wall panels 124 to be vertically freestanding structures, since support from a ground surface may be sought from each of the first wall section 500 and each of the second wall sections 502, 504 (for example at the first longitudinal end 510). In cases where one of a second wall section is smaller than the other second wall section, such as in case of the first end panel 250, where the second wall section 604 is smaller than the second wall section 602, support over a ground surface may be sought by the first wall section 600 and the second wall section 602 alone (at the first longitudinal end 610). Similarly, support over a ground for the second end panel 252 may be sought by the first wall section 700 and the second wall section 704 alone. Similar details may be contemplated for the end panels 250\ 252' (FIGS. 8 and 9). [0056] The use of the C-shaped, precast concrete wall panels 124 allows more room (i.e., more carpet area) to be opened up within the building 100 as compared to a similarly sized building built with the conventional walls (that may include a planar and linear profile). While use of the C-shaped, precast concrete wall panels 124 opens up more room in the interior of the building 100, said usage ensures that structural strength and integrity of the structure of the building 100 remains uncompromised. An outer footprint of the building 100 may also remain unchanged relative to similarly sized building that may be built with conventional techniques, thus providing more usable real estate for a user. Further, the C-shaped profile of the precast concrete wall panels 124 allows the precast concrete wall panels 124 to be evenly stacked and arranged, one above the other. This optimizes space requirements for storage and transportation of the precast concrete wall panels 124.

We Claim:

A building, comprising:
a plurality of walls for supporting a roof structure, each wall including a plurality of precast concrete wall panels, each precast concrete wall panel being a vertically freestanding structure, and including a first wall section, and
two second wall sections disposed spaced apart from each other and extending substantially perpendicularly from the first wall section, one of the two second wall sections being coupled to a second wall section of an adjacent precast concrete wall panel, and other of the two second wall sections being coupled to one of a second wall section or a first wall section of an adjacent precast concrete wall panel, wherein
each precast concrete wall panel is a pre-tensioned panel.
The building as claimed in claim 1 further comprising a plurality of couplers for coupling the second wall section of one wall of the plurality of walls with either the second wall section or the first wall section of the adjacent precast concrete wall panel.
The building as claimed in claim 1, wherein
the two second wall sections extend in substantially a same direction from the first wall section.
The building as claimed in claim 1, wherein in one or more precast concrete wall panels of the plurality of precast concrete wall panels, a length of one of the two second wall sections is smaller than a length of a corresponding first wall section.
The building as claimed in claim 1, wherein the plurality of precast concrete wall panels includes one or more first wall panels and one or more second wall panels,
wherein the one or more second wall panels form end panels of one or more walls, each second wall panel including a first longitudinal end and a second longitudinal end, a slit being formed at the first longitudinal end.

The building as claimed in claim 5 further comprising a base structure including
a plurality of precast concrete base panels, each precast concrete base panel including
a base section, and
a first rail and a second rail extending substantially perpendicular to the base section,
wherein the plurality of precast concrete wall panels is received within a channel defined between the first rail and the second rail.
The building as claimed in claim 6, wherein the slit receives one of the first rail or the second rail.
The building as claimed in claim 1, wherein the two second wall sections are disposed spaced apart from each other to define a gap therebetween.
The building as claimed in claim 8, wherein the second wall section of one of the precast concrete wall panel is disposed within the gap of an adjacent precast concrete wall panel, and the second wall section of the adjacent precast concrete wall panel is disposed within the gap of the one of the precast concrete wall panel.
The building as claimed in claim 1, wherein the roof structure includes a plurality of precast concrete roof panels.