Experimental study on seismic behaviors of corroded squat reinforced concrete shear walls

被引：0

作者：

Zheng S. ^{[1
]}

Li Q. ^{[1
]}

Qin Q. ^{[1
]}

Zuo H. ^{[1
]}

Dong L. ^{[1
]}

Liu W. ^{[1
]}

机构：

[1] School of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an

来源：

Jianzhu Jiegou Xuebao/Journal of Building Structures | 2019年 / 40卷 / 08期

关键词：

Artificial climate environment; Corrosion; Quasi-static test; Seismic behavior; Squat RC shear wall;

D O I：

10.14006/j.jzjgxb.2017.0212

中图分类号：

学科分类号：

摘要：

In order to study seismic behaviors of corroded squat reinforced concrete (RC) shear wall, such as bearing capability, deformation capacity and energy-dissipating capacity under different spacing of horizontal reinforcement and diameter of longitudinal reinforcement, five RC shear walls were accelerated corrosion under the artificial climate to simulated coastal atmospheric environment, and pseudo-static tests of these corroded specimens with the same corrosion degree and axial compression ratio were carried out. The results show that the corrosion cracks along the longitudinal reinforcement are wider than those along the horizontal reinforcement and stirrup of concealed column, while the corrosion rate gives an opposite results. Reducing the spacing of the transversely distributed reinforcements can decrease the degree of shear failure of corroded specimens and improve the bearing capacity, ductility and energy dissipation capacity of corroded specimens in different degrees. The ductility gets the highest increase, which leads to the reduction of the shear deformation. The improvement of the seismic behavior of corroded squat RC shear walls by increasing the horizontal reinforcement ratio can be achieved by increasing the diameter of the longitudinal reinforcement, which makes the bearing capacity get the highest increase. The shear deformation of corroded specimens also gets larger because the bending capacity of the corroded specimens is greatly improved and the shear failure is delayed. © 2019, Editorial Office of Journal of Building Structures. All right reserved.

引用

页码：79 / 87

页数：8

共 14 条

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