CN206681409U - Lift the reinforced concrete shear wall of shear wall structure deformability - Google Patents

Abstract

The utility model relates to a reinforced concrete shear wall which improves the deformation capacity of the shear wall structure. Elastic steel corners are provided at the corner where the shear wall piece and the structural floor meet. The main body of the elastic steel corner is a V-shaped member formed by channel steel through the relative inward folding of the notch. The upper and lower folded surfaces of the V-shaped member are Elastic thin steel sheets arranged at intervals are welded; the longitudinally distributed reinforcement of the shear wall is disconnected at the corner of the elastic steel wall, and the upper and lower disconnection points are welded and fixed with the upper and lower folded surfaces of the V-shaped member of the elastic steel corner. The utility model improves the damage and deformation characteristics of the shear wall by adding elastic steel corners, and avoids the crushing of corner concrete and buckling or breaking of longitudinal steel bars that often occur in ordinary reinforced concrete shear walls; the elastic steel corners have The self-resetting recovery function and energy dissipation characteristics can reduce the residual deformation of the shear wall after the earthquake, facilitate the deformation recovery of the shear wall, and improve the ductility and energy dissipation of the shear wall.

Description

Reinforced Concrete Shear Walls for Improving the Deformability of Shear Wall Structures

technical field

The utility model relates to a reinforced concrete shear wall, in particular to a reinforced concrete shear wall which improves the deformation capacity of the shear wall structure.

Background technique

Reinforced concrete shear walls are commonly used lateral force-resisting components in high-rise buildings, and their mechanical properties are crucial to the seismic performance of the overall structure. The impact of earthquake action on the shear wall structure is uncertain, which makes the force situation of the shear wall structure relatively complicated. The ability to resist later earthquakes is greatly reduced, and it is also not conducive to the maintenance and reinforcement of the structure. Therefore, it is necessary to improve the deformation capacity of the shear wall structure so that the structure can produce sufficient deformation to improve its seismic performance when it is subjected to an earthquake; or properly arrange energy dissipation mechanisms in the shear wall structure to dissipate the Energy can reduce the overall impact of earthquake action on the structure; or enhance the self-resetting ability of the shear wall structure, minimize the residual deformation of the structure after the earthquake action, and effectively improve the structure's ability to resist repeated earthquake action.

Utility model content

The technical problem to be solved by the utility model is to provide a reinforced concrete shear wall that improves the deformation capacity of the shear wall structure, that is, to add elastic steel corners to the corners of the original reinforced concrete shear wall to improve the deformation performance of the structure and improve the structure. The energy dissipation capacity makes the structure have a certain self-resetting function, and the overall seismic performance of the structure is improved.

The technical scheme that the utility model solves its technical problem adopts is:

A reinforced concrete shear wall for improving the deformation capacity of the shear wall structure, comprising a double-layer steel mesh sheet composed of horizontally distributed steel bars and longitudinally distributed steel bars, tensioned steel bars are arranged between the double-layer steel mesh sheets, and the double-layer steel mesh sheet The reinforcement mesh cage of the shear wall piece is formed with the tensioned steel bars; the stirrups are arranged at intervals along the longitudinally distributed steel bars on the edge of the shear wall piece, and the stirrups and the longitudinally distributed steel bars on the edge of the shear wall piece form a steel mesh cage for edge restraint members; Elastic steel corners are provided at the corner where the wall sheet and the structural floor meet. The main body of the elastic steel corner is a V-shaped component formed by channel steel through the notch and relatively inwardly folded. The upper and lower sides of the V-shaped component are Elastic thin steel sheets arranged at intervals are welded between the two folded surfaces; the longitudinally distributed reinforcement is disconnected at the corner of the elastic steel wall, and the upper and lower breaking points are welded and fixed to the upper and lower folded surfaces of the V-shaped member of the elastic steel corner; The steel mesh cage of the shear wall sheet and the steel mesh cage of the edge restraint member are integrally poured into the concrete.

Adopt the utility model of above-mentioned technical scheme, compared with prior art, its beneficial effect is:

Set the elastic steel corner at the corner of the reinforced concrete shear wall to relieve the concentrated force of the corner concrete, realize the transition connection of the longitudinal reinforcement at the edge, and avoid the crushing of the corner concrete and the buckling or breaking of the longitudinal reinforcement in the reinforced concrete shear wall to improve the damage and deformation characteristics of reinforced concrete shear walls, and at the same time, give full play to the self-resetting recovery function and energy dissipation characteristics of elastic steel corners, which is beneficial to the deformation recovery of shear walls after being subjected to earthquakes and reduce structural damage. The residual deformation of the shear wall is beneficial to the improvement of the seismic performance such as the ductility and energy dissipation performance of the shear wall.

Description of drawings

Fig. 1 is the structural representation of the reinforced concrete shear wall of the utility model embodiment;

Fig. 2 is the enlarged schematic view of A-A section in Fig. 1;

Fig. 3 is the enlarged schematic view of B-B section in Fig. 1;

Fig. 4 is the enlarged schematic view of C-C section in Fig. 1;

Fig. 5 is a schematic diagram of the position of the elastic steel corner in the reinforced concrete shear wall structure;

Fig. 6 is an enlarged schematic view of the side of the elastic steel corner in Fig. 5;

Fig. 7 is a front enlarged schematic view of the elastic steel corner in Fig. 5;

In the figure: shear wall piece 1; structural floor 2; elastic steel corner 3; horizontal distribution reinforcement 4; longitudinal distribution reinforcement 5;

detailed description

Below in conjunction with accompanying drawing and embodiment the utility model is described in detail.

See Figure 1, Figure 2, Figure 3, and Figure 5, a reinforced concrete shear wall that improves the deformation capacity of the shear wall structure. Stirrups 6 and tensioned reinforcing bars 7, wherein: the horizontally distributed reinforcing bars 4 and the longitudinally distributed reinforcing bars 5 form a double-layer steel mesh sheet, and the tensioned steel bars 7 are arranged between the double-layer reinforced mesh sheets, and the double-layer reinforced mesh sheet and the tensioned steel bars 7 A reinforcement mesh cage for the shear wall piece is formed; stirrups 6 are arranged at intervals along the longitudinally distributed reinforcement bars 5 on the edge of the shear wall piece 1, and the stirrup bars 6 and the longitudinally distributed reinforcement bars 5 on the edge of the shear wall piece 1 form a reinforcement mesh cage of an edge restraint member; An elastic steel corner 3 is provided at the corner where the shear wall piece 1 and the structural floor 2 meet; the steel mesh cage of the shear wall piece and the steel mesh cage of the edge constraint member are integrally poured into the concrete.

Referring to Fig. 4, Fig. 6 and Fig. 7, the main body of the elastic steel corner 3 is a V-shaped component formed by channel steel 8 through the relative inward folding of the notch, and the upper and lower folded surfaces of the V-shaped component are welded with intervals Elastic thin steel sheet 9; longitudinally distributed steel bars 5 are disconnected at the elastic steel corner 3, and the upper and lower breaking points are welded and fixed to the upper and lower folded surfaces of the V-shaped member of the elastic steel corner 3.

The above-mentioned reinforced concrete shear wall for improving the deformation capacity of the shear wall structure is manufactured according to the following steps:

(1) The channel steel 8 is selected according to the design thickness of the shear wall, and the channel steel 8 is processed into a V-shaped member with the relative inward folding of the notch. The edge of the elastic thin steel sheet 9 is welded into one body with the leg edge of the channel steel 8 and the inner side of the waist, that is, the upper and lower folded surfaces of the V-shaped member, to form the elastic steel corner 3 .

(2) Weld the longitudinally distributed reinforcing bars 5 on the edge of the shear wall to the upper and lower interfaces of the elastic steel corner 3, that is, the upper and lower folded surfaces of the V-shaped member, according to the design requirements, and arrange the stirrups 6 at intervals along the longitudinally distributed reinforcing bars 5. After binding Form edge-bound member reinforcement mesh cages.

(3) Bind the other horizontally distributed steel bars 4, longitudinally distributed steel bars 5, and tie bars 7 into a steel mesh cage for shear wall pieces according to the design requirements, and bind and connect them with the steel mesh cages of edge restraint members to form an overall shear wall Reinforced mesh cage.

(4) On the periphery of the overall shear wall steel mesh cage, formwork is supported along the edge of the wall design, scaffolding is erected, and the steel mesh cage is fixed inside the formwork according to the thickness of the protective layer, and concrete is poured according to the construction requirements, waiting for maintenance After completion, the temporary support is removed and the formwork is removed, finally forming a reinforced concrete shear wall with elastic steel corners to enhance the deformation capacity of the shear wall structure.

The above are only preferred embodiments of the present utility model, and it should be pointed out that although the utility model has been described in detail with reference to the preferred embodiments, for those of ordinary skill in the art, some improvements and modifications can be made to the technical solution of the utility model, But without departing from the essence and scope of the technical solutions of the present utility model, these improvements and modifications are also considered as the protection scope of the present utility model.

Claims (1)

1. a kind of reinforced concrete shear wall for lifting shear wall structure deformability, including by transversely distributed steelbar（4）With it is vertical To distribution bar（5）The double steel bar mesh sheet of composition, set between double steel bar mesh sheet and socket reinforcing bar（7）, double steel bar mesh sheet With socketing reinforcing bar（7）Form shear wall piece rebar cylinder mould；Along shear wall piece（1）The genesis analysis reinforcing bar at edge（5）Arranged for interval Stirrup（6）, stirrup（6）With shear wall piece（1）The genesis analysis reinforcing bar at edge（5）Form edge constraint member reinforcing steel bar cylinder mould；Its It is characterised by：Shear wall piece（1）With structure floor（2）Elastic Steel corner is provided with the corner to connect（3）, described Elastic Steel Corner（3）Main body be by channel-section steel（8）V-shaped component through notch with respect to infolding machine-shaping, described V-shaped component it is upper Spaced apart elastic stalloy is welded between lower two foldable planes（9）；Described genesis analysis reinforcing bar（5）In Elastic Steel wall Angle（3）Place disconnects, and cut-off point and Elastic Steel corner up and down（3）The foldable plane up and down of V-shaped component be welded and fixed；Described Shear wall piece rebar cylinder mould, edge constraint member reinforcing steel bar cylinder mould are integrated poured in concrete.