Concrete shear wall with new type stirrup and steel plate composite constraint and construction method

Abstract

The application relates to the technical field of fabricated building, and discloses a concrete shear wall adopting a new type of stirrup and steel plate composite constraint and a construction method thereof. The shear wall structure is combined by steel bars, outer steel plates and concrete. The shear wall is characterized in that the shear wall comprises a stirrup component, a reinforcing component and a wall body. The stirrup component and the reinforcing component are arranged in the wall body. The stirrup component is arranged along the length direction of the wall body and has intersection points in the wall body. The reinforcing component is arranged at the intersection points so that the connecting strength at the intersection points can be improved through the reinforcing component. The reinforcing component is welded to the outer steel plate. The stirrup component and the reinforcing component for reinforcement are arranged in the wall body, and the reinforcing component is arranged at the intersection nodes of the stirrup component, so that the connecting strength of the stirrup component at the nodes is further improved, and the stress performance of the whole shear wall is improved due to the arrangement of the stirrup component and the reinforcing component.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of prefabricated building, in particular to a concrete shear wall adopting new stirrups and steel plate composite constraint and a construction method. BACKGROUND

[0002] The stirrups configured in the traditional reinforced concrete shear wall are horizontal stirrups, that is, parallel to the two engineering axis directions, which are closed rectangular stirrups. In the application scene with large stress, the constraint ability of such stirrups to the longitudinal reinforcement and concrete inside the shear wall is insufficient, and brittle failure is prone to occur.

[0003] Nowadays, with the rapid development of building industrialization represented by prefabricated buildings in China, prefabricated shear wall structure buildings are more and more widely used in civil residences. Prefabricated shear wall structure is mainly used in high-rise and small high-rise residential buildings, etc. It has the advantages of high industrialization degree, controllable cost, fast construction speed compared with cast-in-place shear wall, etc. However, the current prefabricated shear wall still has many deficiencies, such as: the bearing capacity and lateral stiffness are poorer than those of cast-in-place shear wall structure, the connection is more complex, the engineering quantity at the joint is more, the construction efficiency is low, the construction precision is poor, and the strength at the joint is low, etc.

[0004] Therefore, there is an urgent need for a new prefabricated shear wall structure and construction method. SUMMARY

[0005] The technical problem solved by the first aspect of the present application is to provide a concrete shear wall adopting new stirrups and steel plate composite constraint, which can improve the strength of the connection joint.

[0006] In order to solve the above technical problems, the first aspect of the present application provides a concrete shear wall adopting new stirrups and steel plate composite constraint. The shear wall structure is formed by combined pouring of steel bars and concrete, which comprises a stirrup component, a reinforcing component and a wall body. The stirrup component and the reinforcing component are arranged in the wall body. The stirrup component is arranged along the length direction of the wall body and has an intersection point in the wall body. The reinforcing component is arranged at the intersection point to improve the connection strength at the reinforcing point through the reinforcing component.

[0007] Preferably, the reinforcing component comprises a reinforcing plate, the reinforcing plate comprises a plurality of reinforcing plate units, the plurality of reinforcing plate units are arranged symmetrically in the wall body and penetrate the wall body, and the plurality of reinforcing plate units at least comprise two side plates and an inner plate connecting the two side plates. The two side plates are fixed on the two sides of the wall body, and the two side plates are connected by the inner plate.

[0008] Further preferably, the outer surface of the wall body is further provided with a plurality of steel plate structures, the plurality of steel plate structures are welded to form a pouring space for pouring the wall body.

[0009] Preferably, the steel plate structure is further provided with a stud, the stud is welded on the steel plate structure, and the stud is symmetrically arranged on both sides of the length direction of the wall body.

[0010] Further preferably, the stirrup member comprises a corrugated stirrup, the corrugated stirrup is symmetrically arranged along the length direction of the wall body, and the corrugated stirrup has an intersection point in the wall body, and the corrugated stirrups on both sides of the intersection point are parallel to each other.

[0011] Preferably, the stud is arranged corresponding to the horizontal segment of the corrugated stirrup, and the stud is arranged at intervals of the intersection point.

[0012] Further preferably, the intersection point is further provided with a reinforcing stirrup, the reinforcing stirrup is consistent with the shape formed by the intersection of the corrugated stirrup.

[0013] Preferably, a longitudinal reinforcement is further included, and the longitudinal reinforcement is arranged at the bending portions of the corrugated stirrup and the reinforcing stirrup.

[0014] The second aspect of the present application provides a construction method of a concrete shear wall adopting a new type of stirrup and steel plate composite constraint, the method comprises:

[0015] S1, prefabricating a steel plate structure, and welding a stud on the prefabricated steel plate structure;

[0016] S2, assembling the prefabricated steel plate structure to form a peripheral frame of a wall body;

[0017] S3, pouring concrete in the formed peripheral frame of the wall body, so that the stud and the embedded steel bar structure can be integrated with the wall body.

[0018] Preferably, the reserved mounting hole of the prefabricated steel plate structure is a longitudinal reinforcement mounting hole, the hole depth of the longitudinal reinforcement mounting hole is at least 100mm, and the longitudinal reinforcement mounting hole is provided at the upper portion and the lower portion of the steel plate structure.

[0019] Through the above technical solution, the concrete shear wall adopting the new type of stirrup and the steel plate composite constraint of the present application further improves the connection strength of the stirrup member at the node by arranging the stirrup member and the reinforcing member for reinforcement in the wall body, and arranging the reinforcing member at the intersection node of the stirrup member, and the strength of the whole wall body is improved due to the arrangement of the stirrup member and the reinforcing member.

[0020] Other features and advantages of the present application will be described in detail in the following specific embodiments.BRIEF DESCRIPTION OF DRAWINGS BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 A perspective view of a reinforcing bar and steel plate structure of a concrete shear wall using a new type of stirrup and steel plate composite constraint according to an embodiment of the present application;

[0022] Figure 2 A top view of a concrete shear wall using a new type of stirrup and steel plate composite constraint according to an embodiment of the present application;

[0023] Figure 3 A structural diagram of a corrugated stirrup of a concrete shear wall using a new type of stirrup and steel plate composite constraint according to an embodiment of the present application.

[0024] REFERENCE NUMERALS

[0025] 1 wall 2 corrugated stirrup

[0026] 3 reinforcing member 4 reinforcing stirrup

[0027] 5 reinforcing plate 6 stud

[0028] 7 steel plate structure 8 longitudinal reinforcement DETAILED DESCRIPTION

[0029] The specific embodiments of the present application will be described in detail hereinafter with reference made to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative and explanatory and are not intended to limit the present application.

[0030] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "arrangement", and "connection" should be understood in a broad sense, for example, the term "connection" can be fixed connection, or detachable connection, or integral connection; can be direct connection, or indirect connection through an intermediate medium, or internal communication of two elements or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] Referring to Figure 1 , a concrete shear wall using a new type of stirrup and steel plate composite constraint according to an embodiment of the present application includes a wall 1, a stirrup member, and a reinforcing member 3, wherein the reinforcing member 3 and the stirrup member are both arranged in the wall 1, and the stirrup member is arranged along the length direction of the wall 1 and can intersect in the wall 1 to generate intersection points, it should be noted that the intersection points generated by the stirrup member in the wall 1 are distributed at equal intervals, that is, the length between adjacent intersection points is equal. In addition, by arranging the reinforcing member 3 at the intersection points, the connection strength at the intersection points can be improved by the arrangement of the reinforcing member 3.

[0032] More specifically, the reinforcing member 3 comprises a reinforcing plate 5, the reinforcing plate 5 comprises a plurality of reinforcing plate 5 units, the plurality of reinforcing plate 5 units are arranged symmetrically in the wall body 1 and penetrate the wall body 1, and the plurality of reinforcing plate 5 units at least comprise two side plates and an inner plate connecting the two side plates, the two side plates are respectively arranged on both sides of the wall body 1, and the two side plates are connected by the inner plate, so that an effective fixed connection effect can be formed, and the arrangement of the reinforcing plate 5 in the wall body 1 can effectively improve the strength of the shear wall formed.

[0033] In addition, a plurality of steel plate structures 7 are arranged on the outer surface of the wall body 1, the plurality of steel plate structures 7 are welded to form a pouring space for pouring the wall body 1, the concrete used for pouring the wall body 1 is coarse aggregate, and the concrete with a particle size less than 20mm is poured. In addition, the stud 6 is arranged on the steel plate structure 7, the stud 6 is arranged on the steel plate structure 7 in a detachable manner, and since the steel plate structure 7 is arranged around the wall body 1, the stud 6 arranged on the steel plate structure 7 is arranged symmetrically along the length direction of the wall body 1.

[0034] Reference Figures 2 to 3 The stirrup member comprises a plurality of independent corrugated stirrups 2, wherein the corrugated stirrup 2 assembly comprises a first corrugated stirrup 2 and a second corrugated stirrup 2, the first corrugated stirrup 2 and the second corrugated stirrup 2 are arranged symmetrically, due to the unique structure of the corrugated stirrup 2, even if the corrugated stirrups 2 are arranged symmetrically, the first corrugated stirrup 2 and the second corrugated stirrup 2 arranged on both sides of the wall body 1 will also partially intersect to form an intersection, in order to ensure the strength of the intersecting part of the corrugated stirrup 2, a rectangular stirrup is arranged in the intersection area to stir the first corrugated stirrup 2 and the second corrugated stirrup 2, and the arrangement of the rectangular stirrup can further improve the structural strength of the intersection of the plurality of corrugated stirrups 2.

[0035] The first corrugated stirrup 2 and the second corrugated stirrup 2 are both composed of a plurality of stirrup units, and a hook structure is arranged at the end of the first corrugated stirrup 2 and the second corrugated stirrup 2, the bending angle of the hook structure is 45°-60°, the bending directions of the two hook structures arranged in the same corrugated stirrup 2 are opposite, and the hook structure and the stirrup unit at the end are connected by an arc.

[0036] In addition, the stud 6 is arranged corresponding to the horizontal section of the corrugated stirrup 2, and the stud 6 is arranged at intervals of the intersection points, and a reinforcing stirrup 4 is arranged at the intersection points, and the shape formed by the intersection of the reinforcing stirrup 4 and the corrugated stirrup 2 is consistent. The reinforcing member 3 also comprises a plurality of longitudinal reinforcement 8, and the plurality of longitudinal reinforcement 8 are arranged at the bending parts of the corrugated stirrup 2 and the reinforcing stirrup 4.

[0037] Specifically, the outer surface of the shear wall structure is further provided with steel plate structures 7, the steel plate structures 7 are provided with a plurality of mounting holes for mounting longitudinal reinforcement 8, and the steel plate structures 7 are arranged around the outer surface of the wall body 1 and are welded with each other to form welds, so that the plurality of steel plate structures 7 arranged outside the shear wall structure can be formed as a whole and the outer surface of the wall body 1 is closed.

[0038] The application discloses a construction method of a concrete shear wall adopting a new type of stirrup and steel plate composite constraint.

[0039] S1, prefabricating the steel plate structure 7, and welding the stud 6 on the prefabricated steel plate structure 7;

[0040] S2, assembling the prefabricated steel plate structure 7 to form the peripheral frame of the wall body 1;

[0041] S3, pouring concrete in the formed peripheral frame of the wall body 1, so that the stud 6 and the steel reinforcement structure embedded therein can be formed as a whole with the wall body 1.

[0042] Specifically, the reserved mounting hole on the wall body 1 is a longitudinal reinforcement 8 mounting hole, the hole depth of the longitudinal reinforcement 8 mounting hole is at least 100 mm, and the longitudinal reinforcement 8 mounting hole is arranged at the upper part and the lower part of the wall body 1.

[0043] More specifically, when the wall body after prefabrication is assembled, the upper and lower two same assembly type built-in symmetrical corrugated stirrups 2 are first fixed by using the longitudinal reinforcement 8 arranged in the reserved longitudinal reinforcement 8 mounting hole, and the pouring node is poured, and the required concrete strength grade of the pouring node is higher than that of the concrete used for pouring the shear wall wall body 1 structure.

[0044] In the description of the application, the description of the terms "one embodiment", "some embodiments", "an implementation", and the like means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are contained in at least one embodiment or example of the application. In the application, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable way in any one or more embodiments or examples.

[0045] The preferred embodiments of the application are described in detail above in combination with the drawings, but the application is not limited thereto. Within the technical concept of the application, various simple modifications can be made to the technical solutions of the application, including the combination of various specific technical features in any suitable way. In order to avoid unnecessary repetition, the application does not further describe various possible combination ways. However, these simple modifications and combinations should also be regarded as the disclosed content of the application and belong to the protection scope of the application.

Claims

1. A concrete shear wall using a new type of stirrup and steel plate composite confinement, the shear wall structure being formed by combined casting of steel bars and concrete, characterized in that, The application relates to a wall body comprising a hoop member and a reinforcing member, wherein the hoop member and the reinforcing member are arranged in the wall body, the hoop member is arranged along the length direction of the wall body and has an intersection point in the wall body, and the reinforcing member is arranged at the intersection point to improve the connecting strength at the intersection point through the reinforcing member. The reinforcing member comprises a reinforcing plate, the reinforcing plate comprises a plurality of reinforcing plate units, the plurality of reinforcing plate units are arranged symmetrically in the wall body and penetrate the wall body, the plurality of reinforcing plate units at least comprise two side plates and an inner plate connecting the two side plates, the two side plates are fixed on the two sides of the wall body, and the two side plates are connected through the inner plate. The outer surface of the wall body is further provided with a plurality of steel plate structures, the plurality of steel plate structures are welded to form a pouring space for pouring the wall body. The steel plate structure is further provided with a stud, the stud is welded on the steel plate structure, and the stud is symmetrically arranged on the two sides of the length direction of the wall body. The hoop member comprises a first corrugated hoop and a second corrugated hoop, the first corrugated hoop and the second corrugated hoop are symmetrically arranged along the length direction of the wall body and have an intersection point in the wall body, and the first corrugated hoop and the second corrugated hoop on the two sides of the intersection point are parallel to each other. The stud is arranged corresponding to the horizontal section of the corrugated hoop, and the stud is arranged at intervals of the intersection point. The intersection point is further provided with a reinforcing hoop, the reinforcing hoop is consistent with the shape formed by the intersection of the corrugated hoop and the reinforcing hoop. The application further comprises a longitudinal reinforcement, the longitudinal reinforcement is arranged at the bending positions of the corrugated hoop and the reinforcing hoop.

2. The concrete shear wall employing the new type of stirrup and steel plate composite confinement according to claim 1, characterized in that, The construction method comprises the following steps: S1, prefabricating a steel plate structure, and reserving a stud on the steel plate structure, wherein the stud and the steel plate are connected through welding; S2, assembling the prefabricated steel plate structure to form a peripheral frame of the wall body; S3, pouring concrete in the formed peripheral frame of the wall body, so that the stud and the embedded reinforcing structure can be integrated with the wall body.

3. The concrete shear wall employing the new type of stirrup and steel plate composite confinement according to claim 2, characterized in that, The reserved mounting hole on the prefabricated steel plate structure is a longitudinal reinforcement mounting hole, the hole depth of the longitudinal reinforcement mounting hole is at least 100 mm, and the longitudinal reinforcement mounting hole is arranged on the upper part and the lower part of the steel plate structure.

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