应变率效应对钢筋混凝土剪力墙抗震效应的影响

宋玉普; 张晓丽

doi:10.13204/j.gyjz201203002

应变率效应对钢筋混凝土剪力墙抗震效应的影响

doi: 10.13204/j.gyjz201203002

1.
大连理工大学海岸和近海工程国家重点实验室,辽宁大连 116024

基金项目:

国家自然科学基金重大研究计划重点项目(90815026)

详细信息

作者简介:
宋玉普，男，1944年出生，教授，博士生导师。E-mail:syupu@dlut.edu.cn

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- 文章访问数: 80
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- PDF下载量: 75
- 被引次数: 0
出版历程
- 收稿日期: 2011-10-28
- 刊出日期: 2012-03-20

INFLUENCE OF STRAIN RATE ON EARTHQUAKE RESISTANCE EFFECT OF REINFORCED CONCRETE SHEAR WALL

1.
State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology,Dalian 116024,China

摘要

摘要: 利用有限元软件ABAQUS分别对不同剪跨比和不同轴压比的钢筋混凝土剪力墙在准静态和高应变率下动力加载进行数值模拟,并与考虑应变率效应后按JGJ 32002《高层建筑混凝土结构技术规程》进行的计算结果进行对比,以得到应变率对钢筋混凝土剪力墙抗震承载力的影响。通过比较不同剪跨比、轴压比及应变率下剪力墙的破坏形态和承载力,可以得出结论:在同一剪跨比和轴压比下,随着应变率的增加,剪力墙的抗震承载力有一定程度的提高,故对剪力墙进行地震作用分析时,应适当考虑应变率效应。
- 钢筋混凝土 /
- 剪力墙 /
- 应变率 /
- 准静态 /
- 动态性能
Abstract: The response of RC(reinforced concrete)shear wall with different shear span ratios and axial compression ratios under quasi-static load and dynamic load with high strain rate is studied using finite element software ABAQUS.Then the results are compared with the results calculated according to codes after considering strain rate effect,to obtain the influence of strain rates on aseismic capacity of RC shear wall.Through comparing the failure mode and bearing capacity of shear wall under various shear span ratios,axial compression ratios and strain rates,it can be concluded that: with the increasing of strain rate,the seismic bearing capacity of shear wall will increase if the shear span ratios and axial compression ratios of shear walls are the same.So the strain rate effect should be taken into account properly in the seismic analysis of RC shear wall.
- reinforced concrete /
- shear wall /
- strain rate /
- quasi-static /
- dynamic behavior

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参考文献(10)

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