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Profiled short-pier shear wall with rung steel bar support

A technology of ladder grid reinforcement and special-shaped cross-section, applied in the direction of walls, structural elements, building components, etc., can solve the problem that there is no obvious improvement in the seismic energy consumption capacity of short-leg shear walls, there is not much application experience in earthquake areas, and the wall limbs have low seismic capacity. To achieve the effects of enhanced seismic energy dissipation capacity, enlarged crack distribution area, and improved torsional capacity

Inactive Publication Date: 2006-07-19
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the section height of the short shear wall is relatively small, the seismic capacity of the wall is low, and there is not much application experience in earthquake areas, so its application range is limited
At present, the reinforcement method of short-leg shear walls still adopts ordinary long-leg shear walls, and there are no measures to significantly improve the seismic energy dissipation capacity of short-leg shear walls

Method used

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  • Profiled short-pier shear wall with rung steel bar support
  • Profiled short-pier shear wall with rung steel bar support
  • Profiled short-pier shear wall with rung steel bar support

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] When the wall reinforcement adopts double-row reinforcement, the schematic diagram of the structural reinforcement of a structural unit of the L-shaped short-leg shear wall supported by ladder lattice steel bars is as follows figure 1 , figure 2 ,and image 3 As shown, it is composed of a reinforced concrete concealed column 1 and a shear wall panel supported by ladder bars; the reinforcement of the concealed column 1 is that rectangular stirrups 3 are evenly bound along the longitudinal steel bars 2, and the stirrups are along the entire concealed column. Bundle, and intensify in the anchorage area of ​​the oblique steel tendon 8, the concealed column at the corner of the wall is L-shaped, and the stirrup of the concealed column at the corner is a vertical rectangular stirrup to form an L-shape; the distribution of the shear wall panel The reinforcement is that horizontally distributed steel bars 4 and longitudinally distributed steel bars 5 are evenly arranged on bo...

Embodiment 2

[0044] When the wall reinforcement adopts double-row reinforcement, the schematic diagram of the structural reinforcement of a structural unit of the T-shaped short-leg shear wall supported by ladder lattice steel bars is as follows Figure 4 , Figure 5 ,and Figure 6 As shown, it is composed of a reinforced concrete concealed column 1 and a ladder steel bar supporting shear wall panel; the reinforcement of the concealed column 1 is the same as that of Example 1, and the concealed column at the corner of the wall is T-shaped, and the corner is The hidden column stirrups are vertical rectangular stirrups arranged in a T shape; the reinforcement of the shear wall panels is the same as that of Example 1; Bind one-way oblique tendons 8 respectively. The oblique tendons 8 on each side of the web are composed of three parallel reinforcing bars, and the oblique tendons 8 on each side of the flange are composed of two parallel reinforcing bars. Tension reinforcements 9 perpendicula...

Embodiment 3

[0046] When the wall reinforcement adopts double-row reinforcement, the cross-sectional enlarged schematic diagram of a structural unit of the special-shaped cross-section Z-shaped short-leg shear wall supported by ladder lattice steel bars is as follows Figure 7 As shown, it is composed of reinforced concrete concealed column 1 and steel bar support shear wall panel with ladder; the reinforcement of its concealed column 1 is the same as that of embodiment 1, and the reinforcement of shear wall panel is the same as that of embodiment 1; the ladder The bars supported by the grid steel bars are the same as in Example 1, and the concrete is poured and tamped to form a Z-shaped short-leg shear wall with a ladder grid steel bar support.

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Abstract

The invention relates to a grid reinforced bar support special-shaped section short shearing force wall and relative producing method. The special-shaped section short shearing wall is formed by hidden post (1) and shearing wall plates. Wherein, it arranges reinforced bar network inside the wall plate and hidden posts at the end and corner of wall branches; when using two-row reinforced bars, the horizontal distributed reinforced bar (4) uses rectangle closed hoop reinforcement and adds intercross grid reinforced bar support between the reinforced bar network while said grid reinforce bar support is made by using drawing reinforced bar (9) to bond or weld the inclined reinforced bar beam (8); when the reinforced bar network uses single-row distributed bar, it arranges grid reinforced bar support at the two sides of reinforced bar network; it inserts hidden post (1) anchorage at the upper and lower ends of inclined reinforced bar beam (8); and both the web and swing wall branch have said grid reinforced bar support. Compared to general short shearing wall, the invention has improved anti-vibration ability, improved loading ability, higher ductility, higher torsional resistance, reduced side rigidity reduction and limited bottom shearing slide.

Description

technical field [0001] The invention relates to a short-leg shear wall with a ladder grid steel bar supporting a special-shaped section and a manufacturing method thereof, which belongs to a shear wall and a manufacturing method thereof. Background technique [0002] Reinforced concrete shear wall is the core anti-seismic component of building structures, especially high-rise building structures. It is widely used in frame-shear wall structures, frame-tube structures, shear wall structures, and steel-concrete hybrid structures. The shear wall structure should be arranged in two directions along the main axis or in other directions. Generally, the wall piers should not be arranged in one direction. The intersection of the longitudinal and transverse walls often forms a non-shaped cross-section. Due to the poor ductility of the shear wall, the full play of the overall seismic performance of the structure is affected. [0003] In recent years, people have higher and higher req...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B2/84E04B1/98E04B1/20E04C5/06
Inventor 曹万林赵长军
Owner BEIJING UNIV OF TECH
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