Joint structure between steel plate concrete wall and slab

Abstract

To construct steel plate concrete walls on upper and lower floors and slabs connected to their joints with good workability in a state where they are rationally joined, and to allow good stress transmission between the steel plate concrete walls on the upper and lower floors.SOLUTION: When joining steel plate concrete walls 1 to 4 on upper and lower floors, which are constructed by placing wall concrete 6 between a pair of opposing steel plates 5, and a slab S connected to joint portions of the steel plate concrete walls 1 to 4, the steel plate 5 on the lower floor side and the steel plate 5 on the upper floor side are arranged with a predetermined interval in a vertical direction within a placement height of slab concrete 12. A rod-shaped joint member 15 for stress transmission extending upward from between the pair of steel plates 5 on the lower floor side to between the pair of steel plates 5 on the upper floor side is provided. The wall concrete 6 on the upper and lower floors and the slab concrete 12 are cast so as to be joined through a gap between the steel plates 5 on the upper and lower floors with a predetermined interval.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a joining structure between a steel plate concrete wall of upper and lower floors constructed by placing wall concrete between a pair of opposing steel plates, and a slab connected to a joining portion of these steel plate concrete walls.

Background Art

[0002] As the background art of the present invention, for example, an H-shaped or I-shaped joint member made of a steel plate or a steel bar is arranged at a position straddling between joined SC steel plate units (steel plate concrete walls), and the stress generated in the surface steel plate of the SC steel plate unit is transmitted by the concrete placed after the installation of the SC steel plate unit (see, for example, Patent Document 1).

[0003] Further, the ends of the outer shell steel plates are butted against each other, and a joining socket is interposed so as to straddle between the ends of both outer shell steel plates, and by filling the entire interior of both outer shell steel plates with concrete, there is a steel plate concrete structure in which both outer shell steel plates are joined in a state where stress can be transmitted through the joining socket and the concrete (see, for example, Patent Document 2).

[0004] Further, a perforated steel plate is arranged in a state straddling the hollow portions of adjacent steel plate panels, and by fixing the perforated steel plate in the concrete filled in the hollow portions of both steel plate panels, there is a steel plate concrete structure in which both steel plate panels are joined so that stress can be transmitted through the perforated steel plate and the concrete (see, for example, Patent Document 3).

[0005] Further, a flange having a large number of holes extending in the horizontal direction is attached to one surface steel plate of the steel plate concrete wall by welding or the like, and a joining structure between the steel plate concrete wall and the reinforced concrete floor in which a large number of horizontal reinforcing bars of the reinforced concrete floor are respectively locked to each hole of this flange is described (see, for example, Patent Document 4).

Prior Art Documents

Patent Document

[0006]

Patent Document 1

Patent Document 2

Patent Document 3

Patent Document 4

Summary of the Invention

Problems to be Solved by the Invention

[0007] In the technique described in Patent Document 1, by using the above-described joint member, it is possible to join SC steel plate units to each other so as to be stress-transmissible while eliminating the need for on-site welding between the SC steel plate units. However, in forming the joint member, it is necessary to join a pair of opposing connecting steel plates, a steel bar or steel plate extending across the pair of connecting steel plates, a displacement-preventing steel plate provided substantially parallel to the SC steel plate at the central portion of the steel bar or steel plate, and a large number of studs protruding from the displacement-preventing steel plate toward the SC steel plate. Therefore, there is room for improvement in joining SC steel plate units to each other so as to be stress-transmissible while simplifying the joint member. In addition, Patent Document 1 does not describe the relationship between the SC steel plate unit and the slab.

[0008] In the technique described in Patent Document 2, by using the joint socket, it is possible to join steel plate concrete members to each other so as to be stress-transmissible while eliminating the need for welding between the steel plate concrete members. However, in manufacturing the joint socket, it is necessary to weld a plurality of reinforcing ribs to the outer peripheral surface of the joint steel pipe. Therefore, there is room for improvement in joining steel plate concrete members to each other so as to be stress-transmissible while simplifying the joint socket. Moreover, Patent Document 2 does not describe the combination of steel plate concrete and slab.

[0009] In the technology described in Patent Document 3, by using perforated steel plates, it is possible to join steel plate panels so that stress can be transmitted between them without the need for welding between the steel plate panels. However, in order to join steel plate panels so that stress can be transmitted between them using perforated steel plates, it is necessary to insert tie bars that connect the outer shell steel plates of the upper steel plate panel into the holes of the perforated steel plates and attach the perforated steel plates so that they can slide freely in the axial direction of the tie bars. In addition, it is necessary to weld a plurality of long studs that are inserted into the holes of the slid perforated steel plates to the inner surfaces of the respective outer shell steel plates. Therefore, there is room for improvement in joining steel plate panels so that stress can be transmitted between them while simplifying the joining structure and facilitating construction. Moreover, Patent Document 3 does not describe the combination of steel plate panel and slab.

[0010] In the technology described in Patent Document 4, in order to join a steel plate concrete wall and a reinforced concrete floor, in addition to attaching flanges to one of the surface steel plates, it is necessary to attach a reinforcing material that connects a pair of surface steel plates in the same plane as the flanges by welding or the like. Therefore, there is room for improvement in simplifying the joining structure of the steel plate concrete wall and the reinforced concrete floor and facilitating construction. Moreover, Patent Document 4 does not describe a structure for joining upper and lower floor steel plate concrete walls so that stress can be transmitted between them.

[0011] In view of this situation, the main problem of the present invention is to enable good stress transmission between upper and lower floor steel plate concrete walls while constructing the upper and lower floor steel plate concrete walls and the slabs connected to their joining parts in a state where they are reasonably joined with good workability.

Means for Solving the Problems

[0012] A first characteristic configuration of the present invention is a joint structure between a steel plate concrete wall of upper and lower floors constructed by placing wall concrete between a pair of opposing steel plates, and a slab connected to a joint portion of these steel plate concrete walls, wherein the steel plate on the lower floor side and the steel plate on the upper floor side are arranged with a predetermined interval in the vertical direction within the placing height of the slab concrete, a rod-shaped joint member for stress transmission is provided that extends upward from between the pair of steel plates on the lower floor side and reaches between the pair of steel plates on the upper floor side, the wall concrete and the slab concrete of the upper and lower floors are placed so as to be joined through the gaps between the steel plates of the upper and lower floors with the predetermined interval, 、 The slab is a steel plate concrete slab whose bottom is formed of a slab steel plate. The pair of steel plates on the lower floor side have their upper portions extending upward from the slab steel plate and entering the slab concrete, and studs protruding toward the slab side are provided on the side surface on the slab side at the upper portion of the steel plate. is the point.

[0013] According to this configuration, for example, wall concrete is placed between a pair of steel plates on the lower floor side provided with a joint member to construct a steel plate concrete wall on the lower floor side, and slab concrete is placed in a slab construction area surrounded by the upper part of the steel plate concrete wall on the lower floor side to construct a slab. Next, a pair of steel plates of a steel plate concrete wall on the upper floor side joined to the steel plate concrete wall on the lower floor side are arranged at a height position with a predetermined interval in the vertical direction within the placing height of the steel plate on the lower floor side and the slab concrete in a state where a joint member from the steel plate concrete wall on the lower floor side is located between these steel plates, and wall concrete is placed between the steel plates on the upper floor side. Thereby, the steel plate concrete walls and the slab of the upper and lower floors can be rationally constructed in a joined state in which their concretes are integrated, and a lap joint that joins the steel plate concrete walls of the upper and lower floors so as to be stress transmissible can be rationally constructed from the steel plates of the upper and lower floors, the joint members extending therebetween, and the concrete integrating them. As a result, the steel plate concrete walls of the upper and lower floors and the slabs connected to the joint portions thereof can be constructed with good workability in a state where they are reasonably joined, and while simplifying the joint members, etc., good stress transmission between the steel plate concrete walls of the upper and lower floors can be achieved.

[0014] According to the second characteristic configuration of the present invention, in the steel plate concrete wall disposed on the inner side of the structure, the pair of steel plates on the lower floor side and the pair of steel plates on the upper floor side are arranged with the predetermined interval therebetween. The slab reinforcing bars arranged in the placement area of the slab concrete are arranged in a state of passing through the gap between the pair of steel plates on the lower floor side and the pair of steel plates on the upper floor side with the predetermined interval therebetween.

[0015] According to this configuration, without the need to form through holes for passing the slab reinforcing bars through each steel plate used for the inner steel plate concrete wall, the slab reinforcing bars can pass through the inner steel plate concrete wall in a state of intersecting with the joint members, and the penetrating portions of the slab reinforcing bars can be fixed within the inner steel plate concrete wall. As a result, the inner steel plate concrete wall and the slabs on both sides thereof can be joined in a reasonably rigid joined state or a state equivalent to rigid joining.

[0016] According to the third characteristic configuration of the present invention, in the steel plate concrete wall disposed on the outer side of the structure, among the pair of steel plates on the lower floor side and the pair of steel plates on the upper floor side, only the inner steel plate on the inner side is arranged with the predetermined interval therebetween. The slab reinforcing bars arranged in the placement area of the slab concrete are arranged in a state of passing through the gap between the inner steel plates on the upper and lower floors with the predetermined interval therebetween.

[0017] According to this configuration, without the need to form through holes for passing the slab reinforcing bars through the inner steel plate used for the outer steel plate concrete wall, the end portion side of the slab reinforcing bars can be arranged and fixed within the outer steel plate concrete wall in a state of intersecting with the joint members. As a result, the external steel plate concrete wall and the slab can be reasonably joined in a rigid joint state or a state equivalent to a rigid joint.

Brief Description of the Drawings

[0018]

Figure 1

Figure 2

Mode for Carrying Out the Invention

[0019] Hereinafter, an example of a mode for carrying out the present invention will be described with reference to the drawings. In the joint structure between the steel plate concrete wall and the slab exemplified in this embodiment, as shown in FIG. 1, as the steel plate concrete wall W, there are provided upper and lower steel plate concrete walls 1 and 2 arranged on the outer side of the structure, and upper and lower steel plate concrete walls 3 and 4 arranged on the inner side of the structure, and a slab S is joined to the joint portion between the upper floor side steel plate concrete walls 1 and 3 and the lower floor side steel plate concrete walls 2 and 4.

[0020] Each steel plate concrete wall W is constructed by placing wall concrete 6 between a pair of opposing steel plates 5. The pair of steel plates 5 have a certain length and are connected via a number of tie bars 7 or the like extending across the pair of steel plates 5, so that a wall concrete placing region with a certain interval is secured between the pair of steel plates 5. On the inner surface of each steel plate 5, a number of studs 8 for structurally integrating the steel plate 5 and the wall concrete 6 are welded in a horizontal posture. On the upper part of each of the lower floor side steel plate concrete walls 2 and 4, brackets 9 for receiving and supporting the outer peripheral portion of the slab S from below are provided.

[0021] Each slab S is constructed as a steel plate concrete slab by laying a slab steel plate 10 instead of a bottom bar in each slab construction area surrounded by the upper parts of the steel plate concrete walls 2 and 4 on the lower floor side, arranging slab reinforcing bars 11 corresponding to the top bars, and placing slab concrete 12. The slab reinforcing bars 11 are arranged in a lattice pattern in the vertical and horizontal directions intersecting with the vertical direction parallel to the wall surface of the steel plate concrete wall W. However, in Fig. 1, for the sake of convenience, the illustration of the slab reinforcing bars 11 in the vertical direction arranged parallel to the wall surface of the steel plate concrete wall W is omitted.

[0022] The slab steel plate 10 is supported by the brackets 9 of the steel plate concrete walls 2 and 4 on the lower floor side in a state of forming the bottom of the slab S.

[0023] Among the slab reinforcing bars 11, the slab reinforcing bars 11A arranged to span between the outer steel plate concrete wall 2 and the inner steel plate concrete wall 4 extend straight toward the outer steel plate concrete wall 2 and the inner steel plate concrete wall 4, and are arranged in a state where the outer ends are located above the outer steel plate concrete wall 2. The outer ends of the slab reinforcing bars 11A are provided with fixing portions 11a having an enlarged diameter to more preferably fix them to the wall concrete 6 in the outer steel plate concrete wall 2. The fixing portion 11a may be, for example, bent in a hook shape or the like in order to more preferably fix it to the wall concrete 6.

[0024] Among the slab reinforcing bars 11, the slab reinforcing bars 11B arranged to span between the inner steel plate concrete walls 4 extend straight toward the inner steel plate concrete walls 4.

[0025] The slab reinforcing bars 11 include joint slab reinforcing bars 11C spanning the ends of the slab reinforcing bars 11 facing each other with the inner steel plate concrete wall 4 interposed therebetween.

[0026] On the upper surface of the slab steel plate 10, a large number of studs 13 for structurally integrating the slab steel plate 10 and the slab concrete 12 are welded in an upright position. On the upper portions of the lower-story steel plate concrete walls 2 and 4 forming the slab construction area, a large number of studs 14 for structurally integrating those steel plates 5 and the slab concrete 12 are welded in a horizontal position.

[0027] Among the lower-story steel plate concrete walls 2 and 4 on the lower side, for each of the outer steel plate concrete walls 2 on the outer side, the upper end position of the outer steel plate 5A facing the outside of the structure among the pair of steel plates 5 is higher than the upper surface position of the slab S, and the upper end position of the inner steel plate 5B facing the inside of the structure is lower than the upper surface position of the slab S. They are constructed with the upper end positions of the pair of steel plates 5 being different. Each of the inner steel plate concrete walls 4 on the inner side is constructed such that their upper end positions are lower than the upper surface position of the slab S. Thereby, when placing the slab concrete 12 in each slab construction area, the upper portion of the outer steel plate 5A in each outer steel plate concrete wall 2 can be used as a slab formwork. And in the state where the slab concrete 12 is placed up to a predetermined placement height (slab height) in each slab construction area, the upper portion of the inner steel plate 5B in each outer steel plate concrete wall 2 on the outer side and the upper portions of each of the inner steel plate concrete walls 4 on the inner side are covered with the slab concrete 12, and a flat slab surface is formed over the entire concrete placement area surrounded by the upper portions of each outer steel plate 5A.

[0028] Among the inner steel plate concrete walls 3 and 4 on the inner side, in the lower-story steel plate concrete wall 4, a plurality of rod-shaped joint members 15 enabling stress transmission with the upper-story steel plate concrete wall 3 are provided in a state of extending upward from between the pair of steel plates 5 above the steel plate concrete wall 4. Each joint member 15 employs reinforcing bars, and each joint member 15 is arranged parallel to the steel plates 5 in a state of passing between a large number of studs 13 provided on the inner surfaces of the respective steel plates 5. In addition, in this embodiment, reinforcing bars are exemplified as the joint members 15, but it is not limited thereto, and rod-shaped steel materials such as angle materials may be adopted.

[0029] The upper-story steel plate concrete wall 3 is constructed such that after the slab concrete 12 placed in the concrete placement area has hardened, a pair of steel plates 5 are placed on the upper surface of the hardened slab concrete 12 so that each joint member 15 extending upward from the lower-story steel plate concrete wall 4 is positioned between the pair of steel plates 5. Then, wall concrete 6 is placed between the opposing pair of steel plates 5.

[0030] By constructing the upper-story steel plate concrete wall 3 in this way, in the inner-side upper and lower-story steel plate concrete walls 3 and 4, the pair of lower-story steel plates 5 and the pair of upper-story steel plates 5 are arranged at a predetermined interval in the vertical direction within the placement height of the slab concrete 12. And among the slab reinforcements 11 arranged in the placement area of the slab concrete 12, the slab reinforcements 11C for joints are arranged so as to pass through the gaps between the pair of lower-story steel plates 5 and the pair of upper-story steel plates 5 arranged at a predetermined interval. Also, at the joint location of the upper and lower-story steel plate concrete walls 3 and 4, a stress transfer joint member 15 extending upward from between the pair of lower-story steel plates 5 and reaching between the pair of upper-story steel plates 5 is provided. Furthermore, the upper and lower-story wall concretes 6 and the slab concrete 12 are placed so as to be joined through the gaps between the upper and lower-story steel plates 5 arranged at a predetermined interval.

[0031] Among the outer-side steel plate concrete walls 1 and 2, in the lower-story steel plate concrete wall 2, a plurality of rod-shaped joint members 15 that enable stress transfer with the upper-story steel plate concrete wall 1 are provided in a state of extending upward from between the pair of steel plates 5 above the steel plate concrete wall 2. Reinforcing bars are adopted for each joint member 15, and each joint member 15 is arranged in parallel with the inner steel plate 5B in a state of passing between a large number of studs 13 provided on the inner surface of the inner steel plate 5B. In addition, in this embodiment, reinforcing bars are exemplified as the joint member 15, but it is not limited to this, and rod-shaped steel materials such as angle materials may be adopted.

[0032] The upper - story steel - plate concrete wall 1 is constructed such that after the slab concrete 12 placed in the concrete - placing area has hardened, the outer steel plate 5A on the upper - story side is placed on the outer steel plate 5A on the lower - story side, and the inner steel plate 5B on the upper - story side is placed on the upper surface of the hardened slab concrete 12, so that each joint member 15 extending upward from the lower - story steel - plate concrete wall 2 is positioned between the pair of steel plates 5. Then, the outer steel plates 5A of the upper and lower stories are joined by welding or the like, and wall concrete 6 is placed between the opposing outer steel plate 5A and inner steel plate 5B.

[0033] By constructing the upper - story steel - plate concrete wall 1 in this way, in the upper and lower - story steel - plate concrete walls 1 and 2 on the external side, the inner steel plate 5B on the lower - story side and the inner steel plate 5B on the upper - story side are arranged at a predetermined interval in the vertical direction within the placing height of the slab concrete 12. Among the slab reinforcements 11 in the placing area of the slab concrete 12, the slab reinforcement 11A has an external end including a fixing part 11a arranged so as to be positioned between the outer steel plate 5A and the inner steel plate 5B through the gap between the inner steel plates 5B of the upper and lower stories at a predetermined interval. Also, at the joint location of the upper and lower - story steel - plate concrete walls 1 and 2, a stress - transfer joint member 15 extending upward from between the pair of steel plates 5 on the lower - story side to between the pair of steel plates 5 on the upper - story side is provided. Furthermore, the upper and lower - story wall concretes 6 and the slab concrete 12 are placed so as to be joined through the gap between the inner steel plates 5B of the upper and lower stories at a predetermined interval.

[0034] With the above configuration, in the joint structure between the steel plate concrete wall W and the slab S exemplified in the present embodiment, as a construction procedure, first, each of the lower-story steel plate concrete walls 2 and 4 is constructed in a state provided with the joint member 15 for stress transmission described above, and a concrete placement area surrounded by the upper part of the outer steel plate 5A in each of the outer steel plate concrete walls 2 on the outside and each slab construction area surrounded by the upper parts of each of the steel plate concrete walls 2 and 4 are formed. Then, after laying the slab steel plate 10 and arranging the slab reinforcing bars 11 in each slab construction area, with the upper part of the outer steel plate 5A in each of the outer steel plate concrete walls 2 on the outside used as a formwork, the slab concrete 12 is placed in the concrete placement area up to a predetermined placement height. Thereby, the upper part of the inner steel plate 5B in each of the outer steel plate concrete walls 2 on the outside and the upper part of each of the inner steel plate concrete walls 4 on the inside are covered with the slab concrete 12, and the slab S can be constructed in each slab construction area.

[0035] After constructing each slab S in this way, each of the upper-story steel plate concrete walls 1 and 3 joined to each of the lower-story steel plate concrete walls 2 and 4 is constructed.

[0036] And when constructing the inner steel plate concrete wall 3 among each of the upper-story steel plate concrete walls 1 and 3, the pair of steel plates 5 in the inner steel plate concrete wall 3 are placed on the upper surface of the slab S in a state where the joint member 15 from the lower-story steel plate concrete wall 4 is located between them. Thereby, the pair of upper-story steel plates 5 can be arranged at a height position with a predetermined interval in the vertical direction within the placement height of the slab concrete 12 from the pair of lower-story steel plates 5. Then, by placing the wall concrete 6 between the pair of upper-story steel plates 5, the inner steel plate concrete wall 3 among each of the upper-story steel plate concrete walls 1 and 3 can be constructed.

[0037] When constructing the external steel plate concrete wall 1, the outer steel plate 5A of the upper floor side steel plate concrete wall 1 is placed on the outer steel plate 5A of the lower floor side steel plate concrete wall 2 so that the joint member 15 from the lower floor side steel plate concrete wall 2 is positioned between the pair of steel plates 5 in the external steel plate concrete wall 1, and the inner steel plate 5B of the upper floor side steel plate concrete wall 1 is placed on the upper surface of the slab S. As a result, only the inner steel plate 5B on the upper floor side can be arranged at a height position with a predetermined interval in the vertical direction within the placing height of the slab concrete 12 from the inner steel plate 5B on the lower floor side. Then, the upper and lower outer steel plates 5A are joined by welding or the like, and the wall concrete 6 is placed between the opposing outer steel plate 5A and inner steel plate 5B, whereby the external steel plate concrete wall 1 among the upper floor side steel plate concrete walls 1 and 3 can be constructed.

[0038] And by constructing each of the upper and lower floor steel plate concrete walls 1 to 4 and each slab S according to such a construction procedure, at the joint locations between the upper and lower floor steel plate concrete walls 3 and 4 and the slab S arranged on the inner side of the structure, a joined state in which their concretes are integrated can be reasonably obtained, and a lap joint that joins the upper and lower floor steel plate concrete walls 3 and 4 in a stress-transmissible manner can be reasonably constructed from the upper and lower floor steel plates 5, the joint members 15 spanning them, and the concrete integrating them. Also, without the need to form through holes for passing the slab reinforcement 11 through each steel plate 5 used for the inner side steel plate concrete walls 3 and 4, the slab reinforcement 11 can pass through the inner side steel plate concrete walls 3 and 4 in a state of intersecting with the joint members 15, and the penetrating portion 11b of the slab reinforcement 11 can be fixed within the inner side steel plate concrete walls 3 and 4. That is, the inner side steel plate concrete walls 3 and 4 and the slabs S on both of their adjacent sides can be joined in a reasonably rigid joined state or a state equivalent to a rigid joint.

[0039] On one hand, at the joint between the upper and lower steel plate concrete walls 1, 2 and the slab S arranged on the outer side of the structure, a joint state in which their concretes are integrated can be reasonably obtained, and from the inner steel plates 5B of the upper and lower floors, the connecting members 15 spanning them, and the concrete integrating them, a lap joint that joins the upper and lower steel plate concrete walls 1, 2 so that stress can be transmitted can be reasonably constructed. Also, without the need to form through holes for passing the slab reinforcement 11 through the inner steel plates 5B used for the outer steel plate concrete walls 1, 2, the outer ends of the slab reinforcement 11 can be positioned inside the outer steel plate concrete walls 1, 2 in a state of intersecting with the connecting members 15, and the outer ends including the fixing portions 11a can be fixed inside the outer steel plate concrete walls 1, 2. That is, the outer steel plate concrete walls 1, 2 and the slab S can be joined in a reasonably rigid joint state or a state equivalent to a rigid joint.

[0040] As a result, each of the upper and lower steel plate concrete walls 1 to 4 and the slab S connected to their joint portions can be constructed with good workability in a state where they are reasonably joined, and in both the outer steel plate concrete walls 1, 2 and the inner steel plate concrete walls 3, 4, while simplifying the connecting members 15, etc., good stress transmission between the upper floor side steel plate concrete walls 1, 3 and the lower floor side steel plate concrete walls 2, 4 can be enabled.

[0041] In addition, if, for example, a pin joint or the like is adopted for the joint between the outer steel plate concrete walls 1, 2 and the slab S and high rigidity cannot be ensured and the deformation of the slab S becomes large, as shown in FIG. 2, a plurality of small beams 16 built into the slab S may be arranged at predetermined intervals between the outer steel plate concrete walls 1, 2 and the inner steel plate concrete walls 3, 4 to suppress the deformation of the slab S.

[0042] Incidentally, in the slab S shown in FIG. 2, with a plurality of ribs 16 provided, a plurality of slab steel plates 10 are distributed and laid between an adjacent external side steel plate concrete wall (not shown) and the rib 16, between adjacent ribs 16, and between an adjacent internal side steel plate concrete wall 3, 4 and the rib 16. And a large number of studs 17 for structurally integrating each rib 16 and the slab concrete 12 are welded in a horizontal posture to the web of each rib 16.

[0043] 〔Alternative Embodiment〕 An alternative embodiment of the present invention will be described. Note that the configurations of the respective alternative embodiments described below are not limited to being applied individually, and can also be applied in combination with the configurations of the above-described embodiment and other alternative embodiments.

[0044] (1) In the above-described embodiment, an example was given in which the upper floor side steel plate 5 is placed on the upper surface of the hardened slab concrete 12 so that the upper and lower floor steel plates 5 are arranged at a predetermined interval in the vertical direction within the placement height of the slab concrete. However, the present invention is not limited to this. Before placing the slab concrete 12, the upper floor side steel plate 5 may be placed on the lower floor side steel plate 5 via a plurality of spacers buried in the slab S, and then the slab concrete 12 may be placed up to a predetermined placement height so that the upper and lower floor steel plates 5 are arranged at a predetermined interval in the vertical direction within the placement height of the slab concrete.

[0045] (2) In the above-described embodiment, an example was given in which the slab S has a bottom formed of the slab steel plate 10. However, the bottom of the slab S may be formed of a half-precast floor slab.

Description of Reference Numerals

[0046] 1 Steel plate concrete wall (upper side of the external side) 2 Steel plate concrete wall (lower side of the external side) 3 Steel plate concrete wall (upper side of the internal side) 4 Steel plate concrete wall (lower side of the internal side) 5 Steel plate 5B Inner steel plate 6 Wall concrete 11 Slab reinforcement 15 Joint member S Slab

Claims

1. A joint structure between a steel plate concrete wall of upper and lower floors constructed by placing wall concrete between a pair of opposing steel plates, and a slab connected to the joint portion of these steel plate concrete walls, wherein the steel plate on the lower floor side and the steel plate on the upper floor side are arranged at a predetermined interval in the vertical direction within the placing height of the slab concrete, a rod-shaped joint member for stress transmission is provided, which extends upward from between the pair of steel plates on the lower floor side and reaches between the pair of steel plates on the upper floor side, the wall concrete and the slab concrete of the upper and lower floors are placed so as to be joined through the gaps between the steel plates of the upper and lower floors with the predetermined interval, the slab is a steel plate concrete slab whose bottom is formed of a slab steel plate, the pair of steel plates on the lower floor side have their upper portions extending upward from the slab steel plate and entering the slab concrete, and studs protruding toward the slab side are provided on the side surface on the slab side at the upper portion of the steel plates. A joint structure between a steel plate concrete wall and a slab.

2. In the steel plate concrete wall arranged on the inner side of the structure, the pair of steel plates on the lower floor side and the pair of steel plates on the upper floor side are arranged at the predetermined interval, The slab reinforcement arranged in the placing area of the slab concrete is arranged through the gap between the pair of steel plates on the lower floor side and the pair of steel plates on the upper floor side with the predetermined interval. The joint structure between the steel plate concrete wall and the slab according to Claim 1.

3. In the steel plate concrete wall arranged on the outer side of the structure, among the pair of steel plates on the lower floor side and the pair of steel plates on the upper floor side, only the inner steel plate on the inner side is arranged at the predetermined interval, The slab reinforcement arranged in the placing area of the slab concrete is arranged through the gap between the inner steel plates of the upper and lower floors with the predetermined interval. The joint structure between the steel plate concrete wall and the slab according to Claim 1 or 2.

Images