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 3—2002《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。
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 aseismie 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 wails are the same. So the strain rate effect should be taken into account properly in the seismic analysis of RC shear wall.
出处
《工业建筑》
CSCD
北大核心
2012年第3期7-11,共5页
Industrial Construction
基金
国家自然科学基金重大研究计划重点项目(90815026)
关键词
钢筋混凝土
剪力墙
应变率
准静态
动态性能
reinforced concrete
shear wall
strain rate
quasi-static
dynamic behavior
