building

Abstract

To provide an architectural structure capable of preventing a foremost floor part from subsiding as gaining a merit through separation of a floor part to the foremost floor part and a rear floor part.SOLUTION: An architectural structure is provided with a floor part 3 oblique in a direction rearward and upward from a front field 2 side and audience seats supported with the floor part 3. The floor part 3 is provided in a state in which the floor part 3 is separated to a foremost floor 31 on the field 2 side and a rear floor part 32 on the rear side of the foremost floor 31. On the field 2, compacted bank soil 6 is provided in a state in which the rear side thereof is supported with a soil retention wall part 7, the foremost floor 31 is provided as a pit floor part 33 installed on an upper part of the bank soil 6 of the field 2, and the soil retention wall part 7 extends upward to an existing area of the pit floor part 33, and on an extention part 71 thereof, displacement preventative bars 10 connecting the soil retention wall part 7 to the pit floor part 33 are arranged.SELECTED DRAWING: Figure 3

Description

Technical Field

[0006] , , , , ,

[0001] The present invention relates to a building provided with a floor portion that slopes upward from the front field side toward the rear, and spectator seats supported by the floor portion.

Background Art

[0002] As such a building, for example, a stadium or the like provided with a plurality of spectator seats in a stepped manner in an upward direction from the front to the rear around a field is known (see, for example, Patent Document 1).

[0003] When constructing the floor portion, if it is provided as one structure integrally constructed for the entire floor portion, a foundation portion such as a pile foundation for supporting the structure must be provided over a wide area, resulting in problems such as increased costs and extended construction periods.

[0004] Therefore, in a stadium or the like described in Patent Document 1, instead of providing the entire floor portion as one integrally constructed structure, the floor portion is provided in a state where it is separated into a foremost floor portion on the field side and a rear floor portion on the rear side of the foremost floor portion. As a result, the construction work of the foremost floor portion and the construction work of the rear floor portion can be carried out in parallel by dividing them into different work types, and the construction period can be shortened. Moreover, since the rear floor portion can be structurally designed separately from the foremost floor portion, it also leads to simplification of the structural design.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] While the stadium described in Patent Document 1 offers advantages such as shorter construction periods and simplified structural design, if the ground on which the stadium or other structure is built is soft ground, there is a high possibility that the foremost floor section, which is separated from the rear floor section, will settle. As a result, problems such as a step difference between the rear floor section and the foremost floor section may occur.

[0007] In light of these circumstances, the main objective of the present invention is to provide a building that can obtain the advantages of separating the floor into a front floor section and a rear floor section, while preventing the front floor section from settling. [Means for solving the problem]

[0008] The first characteristic configuration of the present invention is that it includes a floor that slopes upward from the front field side towards the rear side, and spectator seats supported by the floor, The floor section is provided in such a way that it is separated into a front floor section on the field side and a rear floor section behind the front floor section. The aforementioned field is provided with compacted embankment supported on its rear side by a retaining wall. The aforementioned foremost floor section is provided as a ground floor section installed on top of the field's embankment, The retaining wall section is extended upward to the area where the earthen floor section exists, and anti-slip reinforcement bars are provided at this extended portion to connect the retaining wall section and the earthen floor section.

[0009] According to this configuration, the field is equipped with compacted earth, which allows the field to be raised and improves the visibility of the field from the spectator stands. When constructing the earth, a retaining wall is required to support the earth. In this configuration, the retaining wall is extended upward to the area where the ground floor is located, and anti-slip reinforcement is placed at this extended portion to connect the retaining wall and the ground floor. This allows the anti-slip reinforcement to be placed using the retaining wall necessary for constructing the earth, and the anti-slip reinforcement can prevent the ground floor, which is the foremost part of the floor, from settling.

[0010] In this way, this configuration allows for the separation of the floor into a front floor section and a rear floor section, which offers advantages such as a shorter construction period and a simplified structural design. Furthermore, even if the ground on which the stadium or other building is constructed is soft, it is possible to prevent the settlement of the front floor section, which is the earthen floor, while simplifying the structure.

[0011] A second characteristic configuration of the present invention is that it is provided with a rear foundation that supports the rear floor portion, The aforementioned retaining wall section is arranged to extend upward from the rear foundation section. The front end of the rear floor section is separated from the retaining wall section.

[0012] With this configuration, since the retaining wall is positioned to extend upward from the rear foundation, it is possible to properly support the field embankment with the retaining wall while preventing the retaining wall from settling. Moreover, since the front end of the rear floor and the retaining wall are separated, it is possible to prevent any force from being transmitted from the retaining wall to the rear floor and adversely affecting the rear floor.

[0013] A third characteristic feature of the present invention is that a ground improvement body is provided below the earthen floor portion, via an embankment.

[0014] According to this configuration, a ground improvement body is provided below the floor slab via an embankment, so in addition to the anti-slip reinforcement, the settlement of the floor slab can be appropriately prevented. [Brief explanation of the drawing]

[0015] [Figure 1] Side view showing the overall layout of the stadium [Figure 2] Floor plan showing the overall structure of the stadium [Figure 3] Side view showing the main part of the stadium [Modes for carrying out the invention]

[0016] An embodiment of a building according to the present invention will be described based on the drawings. This building is, for example, as shown in FIG. 1, a stadium 1, and includes a field 2, a floor portion 3 that slopes upward from the front side to the rear side where the field 2 is located, spectator seats 4 supported by the floor portion 3, and a roof structure 5 that covers the upper side of the spectator seats 4.

[0017] The sloping floor portion 3 is constituted by a stepped floor portion that slopes upward from the front to the rear, and spectator seats 4 are installed for each of the plurality of stepped floor portions. Incidentally, in FIG. 1, not all of the spectator seats 4 are shown, and only some of the spectator seats 4 are shown. Regarding the floor portion 3, in FIG. 1, an example having a two - layer stepped floor portion of a lower - floor portion 3A and an upper - floor portion 3B is illustrated.

[0018] As shown in FIGS. 1 and 3, the floor portion 3 is provided in a state where it is separated into a foremost floor portion 31 on the field 2 side and a rear floor portion 32 on the rear side of the foremost floor portion 31. FIG. 3 is an enlarged view of the front - side portion on the field 2 side in the lower - floor portion 3A of the floor portion 3.

[0019] The foremost floor portion 31, as shown in FIGS. 1 and 3, for example, includes the lowermost stepped floor portion closest to the field 2 side and a plurality of stepped floor portions on the rear side of the lowermost stepped floor portion, and is constituted by a plurality of stepped floor portions on the field 2 side. The rear floor portion 32 includes all of the stepped floor portions on the rear side of the foremost floor portion 31 in the floor portion 3, and is constituted by all of the stepped floor portions on the rear side of the foremost floor portion 31.

[0020] The foremost floor portion 31 and the rear floor portion 32 are provided as separate floor portions as shown in FIG. 3, but the front - side end portion of the rear floor portion 32 overlaps with the rear - side end portion of the foremost floor portion 31 with a vertical interval. Thereby, in the direction of rising from the front side to the rear side, the separated foremost floor portion 31 and rear floor portion 32 are arranged in a continuous side - by - side state.

[0021] As shown in FIGS. 1 and 3, the field 2 is provided with the compacted embankment 6. A retaining wall portion 7 is disposed on the rear side of the compacted embankment 6, and the rear side of the embankment 6 is supported by this retaining wall portion 7.

[0022] As shown in FIGS. 1 and 3, the frontmost floor portion 31 is provided as an earth floor portion 33 installed on the upper part of the embankment 6 of the field 2. The earth floor portion 33 is configured, for example, of concrete, and is constructed as a stepped earth floor portion that slopes upward from the front side toward the rear side. On the other hand, the rear floor portion 32 is constructed by arranging, for example, a plurality of precast concrete floor portions side by side, and is provided with a rear floor portion support structure 8 that supports the rear floor portion 32, and a rear foundation portion 9 that supports the rear floor portion support structure 8.

[0023] As shown in FIGS. 1 and 2, the rear floor portion support structure 8 includes a plurality of columns 81, beams 82 that connect the columns 81 to each other, step beams 83 that extend in a state of sloping upward from the front side toward the rear side, and small beams 84 that connect the front end portions of the step beams 83 to each other. As shown in FIG. 2, a plurality of step beams 83 are arranged at intervals in a direction (left - right direction) orthogonal to its longitudinal direction (front - rear direction). The rear floor portion 32 is constructed by arranging a plurality of precast concrete floor portions side by side in the longitudinal direction of the step beams 83 in a state of spanning between the step beams 83 in the left - right direction.

[0024] As shown in FIG. 1, the roof structure 5 is configured in a truss shape including an upper chord member 51, a lower chord member 52, diagonal members 53 that connect the upper chord member 51 and the lower chord member 52, etc. Among the plurality of columns 81 in the rear floor portion support structure 8, the rearmost column 81A extends above the step beam 83, and a roof support portion 54 that supports the roof structure 5 is disposed at its upper end portion. A backstay 55 that connects the roof structure 5 and the column 81A is disposed at the rear end portion of the roof structure 5.

[0025] In this stadium 1, the floor section 3 is separated into a front floor section 31 and a rear floor section 32. The front floor section 31 is a ground floor section 33, while the rear floor section 32 is supported by a rear foundation section 9 via a rear floor section support structure 8. This allows the construction work of the front floor section 31 and the rear floor section 32 to be carried out separately. For example, the construction work of the front floor section 31 and the rear floor section 32 can be carried out in parallel, thereby shortening the construction period.

[0026] Furthermore, in this stadium 1, since compacted earth 6 is provided on the field 2, the field 2 can be raised, improving the visibility of the field 2 from the spectator seats 4. In addition, the structure of the foremost floor section 31 is simplified by making the foremost floor section 31 a dirt floor section 33. Incidentally, in this embodiment, as shown in Figures 1 and 3, the rear foundation section 9 has its thickness increased downwards in the part corresponding to the lower side of the column 81, so that a part of the earth 6 is arranged to extend below the front part of the rear foundation section 9.

[0027] As shown in Figure 3, a retaining wall section 7 is provided to support the embankment 6, and this retaining wall section 7 is positioned to extend upward from the front part of the rear foundation section 9. The retaining wall section 7 extends upward from the upper end of the embankment 6 and extends to the upper end of the slab floor section 33 which becomes the foremost floor section 31 (the area in which the slab floor section 33 exists). As a result, the extended portion 71 of the retaining wall section 7 is positioned on the rear side of the slab floor section 33 which becomes the foremost floor section 31, and stepped beams 83 and secondary beams 84 are positioned on the rear side of the extended portion 71 of the retaining wall section 7.

[0028] The retaining wall section 7 is constructed of reinforced concrete with, for example, reinforcing bars 72, and the rear foundation section 9 is also constructed of reinforced concrete with, for example, reinforcing bars 91. A portion of the reinforcing bars 72 of the retaining wall section 7 is embedded in the rear foundation section 9, and the retaining wall section 7 and the rear foundation section 9 are constructed as an integrated structure.

[0029] At the extension 71 of the retaining wall section 7, anti-slip reinforcement bars 10 are provided to connect the retaining wall section 7 and the slab floor section 33, which is the foremost floor section 31. Multiple anti-slip reinforcement bars 10 are provided at regular intervals in the left-right direction perpendicular to the front-rear direction. This allows the anti-slip reinforcement bars 10 to be provided using the retaining wall section 7 necessary for constructing the embankment 6, and these anti-slip reinforcement bars 10 can prevent the slab floor section 33, which is the foremost floor section 31, from settling. Thus, it is possible to appropriately prevent misalignment (a state in which the riser lengths are different) between the separated rear floor section 32 and the foremost floor section 31.

[0030] The stepped beams 83 and secondary beams 84 of the rear floor support structure 8 are located on the rear side of the retaining wall section 7, but the retaining wall section 7 and the stepped beams 83 and secondary beams 84 are isolated from each other and are arranged to be able to move relative to each other. The front end portion of the rear floor section 32 is located on the upper side of the retaining wall section 7, but the retaining wall section 7 and the rear floor section 32 are isolated from each other and are arranged to be able to move relative to each other. This prevents any force from being transmitted from the retaining wall section 7 to the rear floor support structure 8 and the rear floor section 32, thus preventing the transmission of forces that would adversely affect the retaining wall section 7 to the rear floor support structure 8 and the rear floor section 32.

[0031] Below the foremost floor section 31, the earthen floor section 33, a ground improvement body 11 is provided via an embankment 6. The ground improvement body 11 is provided not only below the earthen floor section 33, but also in the rear foundation section 9, in the area corresponding to the area below the column 81. This makes it possible to prevent settlement of the earthen floor section 33, which is the foremost floor section 31, even if the ground is soft, and also to prevent settlement of the rear floor section 32.

[0032] [Another embodiment] Other embodiments of the present invention will now be described. Note that the configurations of each embodiment described below are not limited to being applied individually, but can also be applied in combination with the configurations of other embodiments.

[0033] (1) In the above embodiment, the inclined floor section 3 is shown as having two staircase-like floor sections, a lower floor section 3A and an upper floor section 3B, as shown in Figure 1. However, it may have only one floor section, or it may have three or more staircase-like floor sections, and the number of floor sections can be changed as appropriate.

[0034] (2) In the above embodiment, Stadium 1 was given as an example of a building according to the present invention, but it is applicable to other buildings as long as they have an inclined floor and seating, and is not limited to Stadium 1. [Explanation of Symbols]

[0035] 1. Stadium (building) 2 fields 3 Floor 4 spectator seats 6. Embankment 7. Retaining wall section 9 Rear foundation 10 Anti-slip muscles 11 Ground Improvement Body 31 Front floor section 32 Rear floor 33. Earthen floor area 71 Extension of the retaining wall section

Claims

1. The structure includes a floor that slopes upward from the front field side towards the rear, and spectator seats supported by this floor. The floor section is provided in such a way that it is separated into a front floor section on the field side and a rear floor section behind the front floor section. The aforementioned field is provided with compacted embankment supported on its rear side by a retaining wall. The aforementioned foremost floor section is provided as a ground floor section installed on top of the field's embankment, The aforementioned retaining wall section is extended upward to the area where the earthen floor section exists, and anti-slip reinforcement bars are installed at the extended portion to connect the retaining wall section and the earthen floor section.

2. A rear foundation is provided to support the aforementioned rear floor section. The aforementioned retaining wall section is arranged to extend upward from the rear foundation section. The building according to claim 1, wherein the front end portion of the rear floor portion is separated from the retaining wall portion.

3. The building according to claim 1 or 2, wherein a ground improvement body is provided below the aforementioned earthen floor portion via an embankment.

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