Connecting structure with stair flight plate as shear wall support and building

Abstract

The utility model discloses a connecting structure with stair flight plates as shear wall supports and a building, and relates to the field of building structures. The connecting structure with the stair flight plate as the shear wall support comprises an outer shear wall and a stair plate connected to the outer shear wall, a pre-embedded fixing frame is arranged in the outer shear wall and connected with a plurality of pre-embedded connecting sleeves, and each pre-embedded connecting sleeve is connected with a plurality of stair plate reinforcing steel bars extending into the stair plate. The connecting structure with the stair flight plate as the shear wall support and the building have the advantages of being simple in structure, convenient to construct and high in connecting strength, the out-of-plane bending moment generated by the lower end of the stair flight plate to the shear wall can be reduced, the stress distribution of the shear wall is optimized, and out-of-plane instability of the shear wall is prevented.

Description

Technical Field

[0001] The present application relates to the field of building structures, and in particular to a connection structure and a building in which a stair slab is used as a shear wall support. Background Art

[0002] In the architectural plan of high-rise buildings, stairwells are generally arranged on the outside and connected to shear walls, such as Figure 1 As shown, when the shear wall connecting the stairwell is made of reinforced concrete shear wall, it is beneficial to waterproofing, convenient construction and high structural efficiency.

[0003] In order to ensure the stability of the connection between the stair slab and the shear wall in the stairwell, the two need to be tied together. When the stair slab and the shear wall are poured with concrete at one time, grooves and meshes need to be left in some areas of the shear wall formwork. This treatment method is inconvenient to construct, and concrete leakage is prone to occur at the grooves and meshes left in the formwork. When the stair slab and the shear wall are poured with concrete separately, a connection structure needs to be reserved between the shear wall and the stair slab to ensure the structural strength requirements. Currently, most of the reserved connection structures between the shear wall and the stair slab are complex in structure and inconvenient to construct.

[0004] Therefore, a stair slab with good structural stability and convenient construction is needed as a connecting structure of shear wall support to meet the construction requirements. Utility Model Content

[0005] The purpose of the present application is to provide a connection structure and device for a stair slab as a shear wall support, which has the advantages of simple structure, convenient construction, and high connection strength. It can reduce the out-of-plane bending moment generated by the lower end of the stair slab on the shear wall, optimize the stress distribution of the shear wall, and prevent the out-of-plane instability of the shear wall.

[0006] This application is implemented as follows:

[0007] The present application provides a connection structure in which a stair slab is supported by a shear wall, comprising an external shear wall and a stair slab connected to the external shear wall. A pre-embedded fixing frame is provided in the external shear wall, and the pre-embedded fixing frame is connected to a plurality of pre-embedded connecting sleeves, each of which is connected to a plurality of stair slab reinforcing steel bars extending into the stair slab.

[0008] In some optional implementation schemes, the embedded fixing frame is composed of a plurality of embedded fixing frame longitudinal steel bars extending along the length direction of the stair slab and a plurality of embedded fixing frame transverse steel bars, and each embedded fixing frame transverse steel bar is respectively connected to each embedded fixing frame longitudinal steel bar.

[0009] In some optional embodiments, the ladder plate reinforcement steel bars are Z-shaped or wavy.

[0010] In some optional implementation schemes, each ladder slab reinforcement steel bar connected by each embedded connection sleeve is connected to each other.

[0011] In some optional embodiments, a plurality of forming templates are provided in the external shear wall, and the forming templates are connected with shear keys protruding in the stair slab.

[0012] In some optional embodiments, a plurality of force-transmitting steel bars along the direction of the stair slab and at least one stair segment constraining edge member are provided in the stair slab, and the stair segment constraining edge members are respectively connected to the plurality of force-transmitting steel bars along the direction of the stair slab.

[0013] In some optional embodiments, each stair slab reinforcement steel bar is connected to at least one force transmission steel bar along the stair slab.

[0014] In some optional embodiments, at least one embedded steel plate is provided in the external shear wall, a plurality of reinforced shear steel bars are provided in the stair slab, and each embedded steel plate is connected to the plurality of reinforced shear steel bars.

[0015] In some optional implementation schemes, the embedded steel plate is also connected to a plurality of anchor steel bars located in the external shear wall.

[0016] The present application also provides a building, which includes the above-mentioned stair slab as a connecting structure supported by a shear wall.

[0017] The beneficial effects of the present application are as follows: the stair slab provided in the present application as a connection structure for shear wall support includes an external shear wall and a stair slab connected to the external shear wall, an embedded fixing frame is provided in the external shear wall, the embedded fixing frame is connected to a plurality of embedded connecting sleeves, each of the embedded connecting sleeves is connected to a plurality of stair slab reinforcing steel bars extending into the stair slab. The stair slab provided in the present application as a connection structure for shear wall support and the building have the advantages of simple structure, convenient construction and high connection strength, can reduce the out-of-plane bending moment generated by the lower end of the stair slab on the shear wall, optimize the stress distribution of the shear wall, and prevent the out-of-plane instability of the shear wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of the connection between the external shear wall and the stair slab in the prior art;

[0020] Figure 2 A partial perspective structural diagram of a connection structure of a stair slab provided in an embodiment of the present application as a shear wall support;

[0021] In the figure: 100, external shear wall; 110, embedded fixing frame; 111, embedded fixing frame longitudinal reinforcement; 112, embedded fixing frame transverse reinforcement; 120, embedded connecting sleeve; 130, stair slab reinforcement reinforcement; 140, stair segment constraint edge member; 150, force transmission reinforcement along the stair slab; 160, embedded steel plate; 161, anchoring reinforcement; 170, shear key; 180, enhanced shear reinforcement; 190, forming formwork; 200, stair slab. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0024] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0025] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0026] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0027] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0029] The following is a further detailed description of the connection structure of the stair slab as a shear wall support and the characteristics and performance of the building of the present application in conjunction with the embodiments.

[0030] like Figure 2As shown, the embodiment of the present application provides a connection structure in which a stair section plate is used as a shear wall support, including an external shear wall 100 and a stair plate 200 connected to one side of the external shear wall 100, wherein an embedded fixing frame 110 is arranged in the external shear wall 100, and the embedded fixing frame 110 includes four embedded fixing frame longitudinal steel bars 111 arranged at intervals up, down, left, and right, and an embedded fixing frame transverse steel bar 112 arranged at intervals in a shape of a U-shaped, each embedded fixing frame transverse steel bar 112 is connected to the four embedded fixing frame longitudinal steel bars 111, and the embedded fixing frame 110 is connected to an embedded connecting sleeve 120 arranged at intervals in a shape of a U-shaped, each The embedded connection sleeves 120 are respectively connected to four embedded fixing frame longitudinal steel bars 111. The two ends of each embedded connection sleeve 120 are respectively threaded and connected to a ladder plate reinforcement steel bar 130 extending into the stair plate 200. The ladder plate reinforcement steel bar 130 is Z-shaped and one end is connected to the embedded connection sleeve 120. The middle parts of the two ladder plate reinforcement steel bars 130 connected by each embedded connection sleeve 120 are connected to each other. The outer shear wall 100 is provided with forming templates 190 arranged at intervals along its length direction. Each forming template 190 is connected with a shear key 170 protruding from the stair plate 200. The stair plate 200 is provided with six force transmission steel bars 150 along the stair plate direction and stair segment constraint edge members 140 arranged at intervals along its length direction. The stair segment constraint edge members 140 are respectively connected to four force transmission steel bars 150 along the stair plate direction. Each ladder plate reinforcement steel bar 130 is connected to three force transmission steel bars 150 along the stair plate direction. The outer shear wall 100 is provided with embedded steel plates 160 arranged at intervals along its length direction, and the stair slab 200 is provided with reinforced shear steel bars 180 arranged at intervals. Each embedded steel plate 160 is connected to four reinforced shear steel bars 180, and the embedded steel plate 160 is also connected to two anchoring steel bars 161 located in the outer shear wall 100.

[0031] The stair slab provided in the embodiment of the present application serves as a connection structure for supporting a shear wall by arranging a pre-embedded fixing frame longitudinal steel bar 111 and a pre-embedded fixing frame transverse steel bar 112 in the external shear wall 100 to form an embedded fixing frame 110, and arranging a [-shaped embedded connecting sleeve 120 connected to the embedded fixing frame 110, and each of the two ends of the pre-embedded connecting sleeve 120 is respectively threaded and connected to a stair slab reinforcing steel bar 130 extending into the stair slab 200, so that the embedded fixing frame 110, the pre-embedded connecting sleeve 120 and the stair slab reinforcing steel bar 130 can be used to improve the connection stability between the external shear wall 100 and the stair slab 200, and improve the out-of-plane stability of the external shear wall 100.

[0032] Among them, the stair slab reinforcement steel bars 130 are Z-shaped and the middle parts of the two stair slab reinforcement steel bars 130 connected by each embedded connecting sleeve 120 are connected to each other, and the stair slab 200 is provided with stair slab-direction force transmission steel bars 150 connected to the stair slab reinforcement steel bars 130. The stair slab-direction force transmission steel bars 150 can strengthen the connection structural strength between the stair slab 200 and the external shear wall 100, improve the supporting effect on the external shear wall 100, and reduce the out-of-plane bending moment of the external shear wall 100.

[0033] In addition, the outer shear wall 100 is provided with embedded steel plates 160 arranged at intervals, each embedded steel plate 160 is connected to two anchor steel bars 161 located in the outer shear wall 100, and each embedded steel plate 160 is also pre-welded with four reinforced shear steel bars 180 extending into the stair slab 200. The embedded steel plates 160 connected with the anchor steel bars 161 and the reinforced shear steel bars 180 can partially replace the embedded connecting sleeves 120 to enhance the strength of the connection structure between the stair slab 200 and the outer shear wall 100. When pouring, the outer shear wall 100 is provided with a forming template 190 inside, and the forming template 190 is provided with a shear key 170 protruding into the stair slab 200. The embedded steel plates 160 and the shear keys 170 further strengthen the connection between the stair slab 200 and the outer shear wall 100.

[0034] An embodiment of the present application also provides a building, which includes the stair slab in the above embodiment as a connecting structure for shear wall support.

[0035] The embodiments described above are part of the embodiments of the present application, rather than all of the embodiments. The detailed description of the embodiments of the present application is not intended to limit the scope of the present application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

Claims

1. A connection structure in which a stair slab is supported by a shear wall, comprising an external shear wall and a stair slab connected to the external shear wall, characterized in that: An embedded fixing frame is provided in the outer shear wall, and the embedded fixing frame is connected to a plurality of embedded connecting sleeves, and each of the embedded connecting sleeves is connected to a plurality of stair slab reinforcing steel bars extending into the stair slab.

2. The connection structure of the stair slab as shear wall support according to claim 1 is characterized in that: The embedded fixing frame is composed of a plurality of embedded fixing frame longitudinal steel bars extending along the length direction of the stair slab and a plurality of embedded fixing frame transverse steel bars, and each of the embedded fixing frame transverse steel bars is respectively connected to each of the embedded fixing frame longitudinal steel bars.

3. The stair slab as a connection structure for shear wall support according to claim 1 is characterized in that: The ladder plate reinforcement steel bars are Z-shaped or wavy.

4. The connection structure of the stair slab as shear wall support according to claim 3 is characterized in that: The ladder plate reinforcement steel bars connected by each embedded connection sleeve are connected to each other.

5. The connection structure of the stair slab as shear wall support according to claim 1 is characterized in that: A plurality of forming templates are arranged in the outer shear wall, and the forming templates are connected with shear keys protruding in the stair slab.

6. The stair slab as a connection structure for shear wall support according to claim 1 is characterized in that: The stair slab is provided with a plurality of force-transmitting steel bars along the stair slab direction and at least one stair segment constraining edge component, and the stair segment constraining edge components are respectively connected to the plurality of force-transmitting steel bars along the stair slab direction.

7. The connection structure of the stair slab as shear wall support according to claim 6 is characterized in that: Each of the ladder plate reinforcement steel bars is connected to at least one of the force transmission steel bars along the ladder plate.

8. The connection structure of the stair slab as shear wall support according to claim 1 is characterized in that: At least one embedded steel plate is arranged in the outer shear wall, a plurality of enhanced shear steel bars are arranged in the stair slab, and each of the embedded steel plates is connected to a plurality of the enhanced shear steel bars.

9. The connection structure of the stair slab as shear wall support according to claim 8, characterized in that: The embedded steel plate is also connected to a plurality of anchoring steel bars located in the outer shear wall.

10. A building, characterized in that: It comprises a stair section plate as claimed in any one of claims 1 to 9 as a connecting structure for shear wall support.

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