Seismic behavior of RC shear walls with flange based on fiber beam-column element

被引：0
作者：
Wang B. [1 ,2 ]
Cai W. [3 ]
Shi Q. [1 ,2 ]
Wu M. [1 ]
Li H. [1 ]
机构：
[1] School of Civil Engineering, Xi'an University of Architecture & Technology, Xi'an
[2] Key Laboratory of Structural Engineering and Seismic Resistance Education, Xi'an University of Architecture & Technology, Xi'an
[3] School of Urban Planning and Municipal Engineering, Xi'an Polytechnic University, Xi'an
来源：
Jianzhu Jiegou Xuebao/Journal of Building Structures | 2021年 / 42卷
关键词：
Fiber beam-column element; Finite element model; Parametric analysis; RC shear wall with flange; Seismic behavior;
D O I：
10.14006/j.jzjgxb.2021.S1.0017
中图分类号：
学科分类号：
摘要：
To effectively and accurately simulate the nonlinear behavior of reinforced concrete members under complex loads, a nonlinear analysis model for RC shear walls with flange considering the combined action of bending and shearing was established by using the stiffness-based fiber beam-column elements in OpenSees. The quasi-static tests of four RC shear walls with flange were simulated through the proposed finite element model. The accuracy of the model was verified by comparing the numerical simulation results with the test results. Through the finite element analysis, the effects of axial compression ratio, shear span ratio, flange width to web height ratio, concrete strength, longitudinal reinforcement ratio, and stirrup reinforcement ratio on the seismic behavior of RC shear walls with flange were investigated. The research shows that, with the increase of axial compression ratio, flange width to web height ratio, concrete strength, and longitudinal reinforcement ratio, the bearing capacity of shear wall with flange increases gradually. Its ultimate deformation capacity increases in the flange-in-tension direction, but decreases in the flange-in-compression direction. Increasing the shear span ratio of shear wall with flange leads to a significant decrease in bearing capacity, but a great increase in deformation capacity. The increase of stirrup reinforcement ratio can effectively delay the failure of shear walls with flange in the flange-in-tension direction. © 2021, Editorial Office of Journal of Building Structures. All right reserved.
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页码：146 / 154
页数：8
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