Building

Abstract

To provide a building that can secure freedom in appearance while reducing fireproof coating work for an exterior wall.SOLUTION: A building 10 comprises a peripheral structure 20 of wall construction and an inner frame 60 of a steel structure that is pin-joined to the peripheral structure 20.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to buildings. [Background technology]

[0002] The following Patent Document 1 shows a building whose outer periphery is formed of a column and beam structure of reinforced concrete and whose inside is formed of steel frame construction. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2020-204204 A Summary of the Invention [Problem to be solved by the invention]

[0004] When the outer periphery is made of reinforced concrete column and beam structures as shown in the above-mentioned Patent Document 1, fireproof coating work can be reduced compared to when the outer periphery is made of steel frame. However, the appearance is likely to be restricted by the arrangement of the columns and beams.

[0005] In consideration of the above, the present invention aims to provide a building that can reduce fireproof coating work on exterior walls while ensuring freedom in appearance. [Means for solving the problem]

[0006] The building of claim 1 comprises a wall-type outer perimeter structure and a steel-framed inner frame pin-joined to the outer perimeter structure.

[0007] The building of claim 1 has a wall structure for the outer periphery. This reduces the need for fireproof coating work for the structure. And because the columns and beams do not protrude indoors or outdoors, there are few design restrictions. This allows for freedom in the appearance.

[0008] In addition, the inner frame of this building is made of steel. This allows the weight of the building to be reduced compared to an inner frame made of reinforced concrete. And because the inner frame is pin-jointed to the outer structure, the input of bending moment to the outer structure is suppressed. This also allows the outer structure to be lighter.

[0009] A building according to claim 2 is the building according to claim 1, in which the outer periphery structure is formed of precast members.

[0010] The building of claim 2 has an outer perimeter structure formed from precast members, so construction time can be shortened compared to when cast-in-place concrete is used.

[0011] A building according to claim 3 is the building according to claim 1 or 2, in which the outer periphery structure and the inner frame are supported by a seismic isolation device.

[0012] In the building of claim 3, since the outer periphery structure and the inner frame are supported by the seismic isolation device, the external force input to the outer periphery structure can be reduced, thereby making it possible to reduce the weight of the outer periphery structure.

[0013] The building of claim 4 is the building described in claim 1 or 2, in which the beams of the inner frame and steel plates embedded in the outer periphery structure and whose ends protrude from the outer periphery structure are bolted together, and the inner frame is pin-connected to the outer periphery structure.

[0014] In the building of claim 4, a steel plate for pin-joining the inner frame to the outer periphery structure is embedded in the outer periphery structure. Therefore, compared to, for example, anchor bolts, it is easier to resist the axial force acting from the beam of the inner frame to the outer periphery structure.

[0015] In addition, the building of claim 4 may be a building described in any one of claims 1 to 3, in which a beam of the inner frame and a steel plate embedded in the outer periphery structure and having an end protruding from the outer periphery structure are bolted together, and the inner frame is pin-connected to the outer periphery structure. Effect of the Invention

[0016] According to the building of the present invention, it is possible to reduce the amount of fireproof coating work required for the exterior walls while ensuring freedom in terms of appearance. [Brief description of the drawings]

[0017] [Figure 1] FIG. 1A is a plan view showing an example of a building according to an embodiment of the present invention, and FIG. 1B is an elevation view showing a part of the building. [Diagram 2] FIG. 2A is a plan view showing an example of a foundation beam of a building according to an embodiment of the present invention, and FIG. 2B is an elevation view partially showing the configuration of the base part. [Diagram 3] FIG. 1A is a cross-sectional view showing an example of an exterior wall structure of a building according to an embodiment of the present invention, and FIG. 1B is a cross-sectional view taken along line BB in FIG. [Figure 4] FIG. 1A is a cross-sectional view showing an example of a joining style between an exterior wall structure and an inner frame in a building according to an embodiment of the present invention, and FIG. 1B is a cross-sectional view taken along line BB in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] Hereinafter, a building and an exterior wall structure according to an embodiment of the present invention will be described with reference to the drawings. Components indicated by the same reference numerals in each drawing are the same components. However, unless otherwise specified in the specification, each component is not limited to one, and may be present in multiple numbers.

[0019] In addition, explanations of configurations and symbols that are duplicated in each drawing may be omitted. Note that the present disclosure is not limited to the following embodiments, and may be implemented by making appropriate modifications, such as omitting configurations, replacing them with different configurations, or combining one embodiment and various modified examples, within the scope of the purpose of the present disclosure.

[0020] (building) 1(A) and (B) show a building 10 according to an embodiment of the present invention. The building 10 includes a wall-type outer peripheral structure 20 and a steel-framed inner frame 60 that is pin-joined to the outer peripheral structure 20.

[0021] (Outer structure - overview) 1(B) is a structure that forms the outer wall structure of the building 10. The outer periphery structure 20 is a laminated structure formed by alternately arranging two types of layers, that is, a first layer 20A and a second layer 20B, in the vertical direction.

[0022] The first layer 20A is formed using a first exterior wall panel 30 and a sash 32. The first exterior wall panels 30 are exterior wall materials formed using precast concrete, and a plurality of first exterior wall panels 30 are arranged at intervals in the horizontal direction. The sashes 32 are fitted between adjacent first exterior wall panels 30. The sashes 32 form openings between the first exterior wall panels 30.

[0023] The first layers 20A are disposed at intervals in the vertical direction. The second layers 20B are disposed between adjacent first layers 20A.

[0024] The second layer 20B is formed using a second exterior wall panel 42 and a sleeve wall 44. The second exterior wall panel 42 and the sleeve wall 44 are integrally formed using precast concrete to form an exterior wall material (hereinafter, may be referred to as an exterior wall material 40).

[0025] The second exterior wall panel 42 is bridged between adjacent first exterior wall panels 30. Specifically, the left lower end portion of the second exterior wall panel 42 is joined to the right upper end portion of the first exterior wall panel 30. The right lower end portion of the second exterior wall panel 42 is joined to the left upper end portion of another first exterior wall panel 30.

[0026] Similarly, the left upper end of the second exterior wall panel 42 is joined to the right lower end of another first exterior wall panel 30. The right upper end of the second exterior wall panel 42 is joined to the left lower end of another first exterior wall panel 30.

[0027] As shown in FIG. 2(B), a base portion 50 is provided below the outer periphery structure 20 formed by alternately arranging the first layers 20A and the second layers 20B in the vertical direction.

[0028] The base 50 is formed by a column-beam structure having steel columns 52 and beams 54, and concrete 56 covering the column-beam structure.

[0029] The base portion 50 is supported by the seismic isolation device 70. In other words, the outer periphery structure 20 is supported by the seismic isolation device 70 via the base portion 50.

[0030] (inner frame) 1(A), a steel-framed inner frame 60 is arranged inside the exterior wall formed by arranging the outer periphery structural body 20 on all four sides. The inner frame 60 includes, as an example, a square steel pipe or H-shaped steel column 62, an H-shaped steel girder 64 erected between the column 62 and the outer periphery structural body 20, and an H-shaped steel sub-beam 66 erected between the girder 64 and the outer periphery structural body 20.

[0031] (Foundation structure) As shown in Fig. 2(A), the building 10 has a foundation beam 12. The foundation beam 12 is integrally formed across the outer periphery structure 20 and the inner frame 60. The foundation beam 12 is supported by a seismic isolation device 70.

[0032] As shown in Fig. 2(B), the seismic isolation device 70 is provided at a position corresponding to the column 52 of the base 50 in the outer periphery structure 20. The seismic isolation device 70 is also provided at a position corresponding to the column 62 of the inner frame 60 shown in Fig. 1(A). As a result, the outer periphery structure 20 and the inner frame 60 are supported by the seismic isolation device 70, and the building 10 becomes a seismically isolated building.

[0033] (Details of the outer periphery structure) 3(B), the sleeve wall 44 is formed to be thinner than the second exterior wall panel 42. Both the front and back surfaces of the sleeve wall 44 are formed to be chamfered from the front and back surfaces of the second exterior wall panel 42, respectively.

[0034] 3(A), the height of the sleeve wall 44 is lower than the height of the second exterior wall panel 42. As a result, an opening 46 is formed between the sleeve wall 44 and the first exterior wall panel 30. A sash or a louver may be fitted into the opening 46. Also, nothing may be placed in the opening 46.

[0035] As shown in Figure 1 (B), the upper end of the sleeve wall 44 is at the same height as the upper end of the second exterior wall panel 42, but in the present invention, the lower end of the sleeve wall 44 may be at the same height as the lower end of the second exterior wall panel 42.

[0036] As shown in Fig. 3(A), reinforcing bars 80 are arranged in the second exterior wall panel 42 and the sleeve wall 44. Of the reinforcing bars 80, some of the reinforcing bars arranged horizontally are arranged across the second exterior wall panel 42 and the sleeve wall 44. As a result, the second exterior wall panel 42 and the sleeve wall 44 are integrally formed.

[0037] In addition, connecting bars 82 are arranged in the first exterior wall panel 30 and the second exterior wall panel 42. The connecting bars 82 are reinforcing bars that connect the first exterior wall panel 30 and the second exterior wall panel 42 in the up-down direction, and are arranged on both lateral sides of each of the first exterior wall panel 30 and the second exterior wall panel 42.

[0038] A mechanical joint 84 is embedded in the lower ends of the first exterior wall panel 30 and the second exterior wall panel 42.

[0039] The upper end of the connecting bar 82 embedded in the first exterior wall panel 30 protrudes from the upper end of the first exterior wall panel 30 and is inserted into a mechanical joint 84 embedded in the lower end of the second exterior wall panel 42. Meanwhile, the lower end of this connecting bar 82 is inserted into a mechanical joint 84 embedded in the lower end of the first exterior wall panel 30.

[0040] Similarly, the upper end of the connecting bar 82 embedded in the second exterior wall panel 42 protrudes from the upper end of the second exterior wall panel 42 and is inserted into a mechanical joint 84 embedded in the lower end of the first exterior wall panel 30. Meanwhile, the lower end of this connecting bar 82 is inserted into a mechanical joint 84 embedded in the lower end of the second exterior wall panel 42.

[0041] The first exterior wall panel 30 and the second exterior wall panel 42 are structural members arranged in a staggered pattern on the outer periphery of the building 10. On the other hand, the sleeve wall 44 formed integrally with the second exterior wall panel 42 is a non-structural member (miscellaneous wall).

[0042] (Connection structure between the outer structure and the inner frame) As shown in FIG. 4, a main girder 64 (and a minor girder 66, not shown) forming the inner frame 60 is joined to the second exterior wall panel 42 forming the outer periphery structure 20 by a pin.

[0043] Specifically, a steel plate 86 is embedded in the second exterior wall panel 42. The steel plate 86 is embedded so that the in-plane direction is perpendicular to the in-plane direction of the second exterior wall panel 42, and the end portion on the indoor side of the building 10 is disposed so as to protrude from the second exterior wall panel 42.

[0044] A stud bolt S1 is welded to a portion of the steel plate 86 embedded in the second exterior wall panel 42. Meanwhile, a splice plate S2 is bolted to a portion of the steel plate 86 protruding from the second exterior wall panel 42. The splice plate S2 is also bolted to the girder 64. In other words, the portion of the steel plate 86 protruding from the second exterior wall panel 42 and the girder 64 are bolted via the splice plate S2. In this way, the inner frame 60 is pin-connected to the outer periphery structure 20.

[0045] A slab 90 is spanned across the main girder 64 (and the minor girder 66 shown in FIG. 1). The slab 90 is positioned so that its end face faces the inner surfaces of the second exterior wall panel 42 and the sleeve wall 44. As shown by the dashed lines in FIG. 4(A), the slab 90 and the sleeve wall 44 may be positioned with a gap between them, or a protrusion may be provided on the slab 90 so that the slab 90 and the sleeve wall 44 come into contact with each other.

[0046] As shown in Fig. 1(B), the height H1 of the first exterior wall panel and the height H2 of the second exterior wall panel are each lower than the height H3 of one layer of the building 10. The sum of the height H1 of the first exterior wall panel and the height H2 of the second exterior wall panel is equal to the height H3 of one layer of the building 10. The height H3 of one layer of the building 10 is the interval at which the upper and lower slabs 90 are arranged.

[0047] <Action and Effects> As shown in Figures 1(A) and 1(B), a building 10 according to an embodiment of the present invention has a wall-type outer periphery structure 20. In a wall-type structure, the steel frame and other structural elements are not exposed, so the need for fireproof coating work for the structure can be reduced. Furthermore, in the area surrounded by the outer periphery structure 20, columns and beams do not protrude indoors or outdoors, so there are fewer design restrictions. This ensures freedom in terms of appearance.

[0048] In addition, the inner frame 60 of the building 10 is made of steel. This allows the weight of the building 10 to be reduced compared to an inner frame made of reinforced concrete. The inner frame 60 is pin-jointed to the outer periphery structure 20, which prevents bending moment from being applied to the outer periphery structure 20. This allows the weight of the outer periphery structure 20 to be reduced.

[0049] Furthermore, in the building 10 according to the embodiment of the present invention, the outer periphery structure 20 is formed of precast members. This allows the construction period to be shortened compared to when cast-in-place concrete is used.

[0050] 2(A) and (B), in the building 10 according to the embodiment of the present invention, the outer periphery structure 20 and the inner frame 60 are supported by the seismic isolation device 70, so that the external force input to the outer periphery structure 20 can be reduced. This allows the weight of the outer periphery structure 20 to be reduced.

[0051] 4(A) and (B), in the building 10 according to the embodiment of the present invention, a steel plate 86 for pin-joining the inner frame 60 to the outer periphery structure 20 is embedded in the second exterior wall panel 42 of the outer periphery structure 20. For this reason, it is easier to resist the axial force acting on the outer periphery structure 20 from the beams (main beams 64 and minor beams 66) of the inner frame 60 compared to, for example, anchor bolts.

[0052] In the building 10 according to the embodiment of the present invention, the first exterior wall panels 30 are arranged with a gap between them in the horizontal direction, as shown in Fig. 1(B). This forms an opening between the first exterior wall panels 30.

[0053] In addition, a second exterior wall panel 42 is joined above and below the first exterior wall panel 30. This allows stress to be transmitted between the first exterior wall panel 30 and the second exterior wall panel 42.

[0054] Furthermore, a sleeve wall 44 is provided between the second exterior wall panels 42. As a result, as shown in Fig. 1(B), by disposing a slab 90 at a height where the sleeve wall 44 is located inside the building 10, it is possible to prevent the end face of the slab 90 from being visible from the outside.

[0055] In addition, in the building 10 according to the embodiment of the present invention, as shown in Fig. 3(B), the sleeve wall 44 is formed with a chamfered surface from the second exterior wall panel 42, so that a shaded appearance can be formed. Also, as shown in Fig. 1(B), the sleeve wall 44 is lower in height than the second exterior wall panel 42. Therefore, a gap is formed between the sleeve wall 44 and the first exterior wall panel 30. This gap can be used as an opening, a ventilation hole, or the like.

[0056] In addition, in the building 10 according to the embodiment of the present invention, the height H1 of the first exterior wall panel 30 and the height H2 of the second exterior wall panel 42 are each lower than the height H3 of one layer of the building 10. In other words, a single layer of a building cannot be formed by only the first exterior wall panel 30 or only the second exterior wall panel 42.

[0057] For this reason, it is necessary to combine the first exterior wall panel 30 and the second exterior wall panel 42 to form one layer of the building 10. As a result, the second exterior wall panel 42 and the sleeve wall 44 are arranged in each layer of the building 10. Therefore, all of the slabs 90 can be arranged inside the second exterior wall panel 42 and the sleeve wall 44.

[0058] In addition, in the exterior wall structure according to the embodiment of the present invention, the second exterior wall panel 42 is a structural member, and the sleeve wall 44 is a non-structural member. That is, the structural strength of the exterior wall is ensured by the first exterior wall panel 30 and the second exterior wall panel 42. Therefore, the thickness and height of the sleeve wall 44 can be freely set. This allows for greater design freedom compared to a configuration in which the sleeve wall 44 is a structural member.

[0059] <Other embodiments> In the above embodiment, the peripheral structure 20 is formed from a precast member, but the embodiment of the present invention is not limited to this.

[0060] For example, the perimeter structure may be formed of cast-in-place concrete. In other words, the perimeter structure may be a wall-type structure using concrete. In this case, it is not necessary to form the exterior wall using the first exterior wall panel 30, the second exterior wall panel 42, the sleeve wall 44, etc.

[0061] If the outer peripheral structure is a wall-type structure, it is possible to secure freedom in appearance while reducing the fireproof coating work of the exterior wall. Also, if the inner frame 60 is pin-joined to the outer peripheral structure, the input of bending moment to the outer peripheral structure is suppressed, so that the weight of the outer peripheral structure can be reduced.

[0062] In addition, in the above embodiment, the outer peripheral structure 20 and the inner frame 60 are supported by the seismic isolation device 70, but the embodiment of the present invention is not limited to this. For example, both the outer peripheral structure 20 and the inner frame 60 do not have to be supported by the seismic isolation device 70. In other words, the building 10 does not have to be a seismically isolated building.

[0063] In addition, in the above embodiment, the outer peripheral structure 20 is supported by the seismic isolation device 70 via the base 50, but the embodiment of the present invention is not limited to this. For example, such a base 50 does not necessarily have to be provided. Even if the base 50 is not provided, the outer peripheral structure 20 can be supported by the seismic isolation device 70.

[0064] In the above embodiment, the inner frame 60 is pin-joined to the outer peripheral structure 20 using the steel plate 86, but the embodiment of the present invention is not limited to this. For example, anchor bolts or the like may be used instead of the steel plate 86.

[0065] In the above embodiment, the sleeve wall 44 is formed by chamfering the second exterior wall panel 42 and is formed to have a lower height than the second exterior wall panel 42, but the embodiment of the present invention is not limited to this. For example, at least one of the front and back surfaces of the sleeve wall 44 may be configured to be flush with the second exterior wall panel 42. Furthermore, the sleeve wall 44 may have the same height as the second exterior wall panel 42.

[0066] Even if the sleeve wall 44 is formed in this manner, the effect of preventing the end face of the slab 90 from being visible from the outside can be obtained.

[0067] In addition, in the above embodiment, the height H1 of the first exterior wall panel 30 and the height H2 of the second exterior wall panel 42 are each lower than the height H3 of one layer of the building 10, but the embodiment of the present invention is not limited to this.

[0068] For example, the height H1 of the first exterior wall panel 30 and the height H2 of the second exterior wall panel 42 may be set independently of the height H3 of one layer of the building 10. Also, the height H1 of the first exterior wall panel 30 and the height H2 of the second exterior wall panel 42 may not be a fixed height, but may be different for the first layer 20A and the second layer 20B. Similarly, the height H3 of one layer of the building 10 may also be different for each layer. In this way, the present invention can be embodied in various forms. [Explanation of symbols]

[0069] 10. Building 20 Peripheral structure 44 Sode wall 60 Inner frame 64 Large beam (beam) 66 Small beam (beam) 70 Seismic isolation device 86 Steel plate

Claims

1. A peripheral structure having a wall structure; A steel-framed inner frame pin-joined to the outer periphery structure; A building equipped with.

2. The peripheral structure is formed of a precast member. The building according to claim 1.

3. The outer periphery structure and the inner frame are supported by a seismic isolation device.

3. A building according to claim 1 or 2.

4. A beam of the inner frame; A steel plate embedded in the outer peripheral structure and having an end protruding from the outer peripheral structure; is bolted to the outer periphery structure, and the inner frame is pin-connected to the outer periphery structure.

3. A building according to claim 1 or 2.

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