L形内置钢板混凝土组合剪力墙抗剪性能分析
A Shear Performance Analysis of L-shaped Steel Plate Reinforced Concrete Shear Wall
姜绍飞 1韩育昌 1刘越生2
作者信息
- 1. 福州大学 土木工程学院,福州 350108
- 2. 福建华航建设集团有限公司,福州 350001
- 折叠
摘要
为揭示L形内置钢板混凝土组合剪力墙的工作机理并提出其抗剪承载力计算公式,首先建立了非线性有限元模型,并通过试验结果进行了验证.在此基础上研究了高宽比、轴压比、钢板厚度、混凝土强度、翼缘长度等参数对剪力墙抗剪性能的影响.最后,提出了剪力墙的抗剪承载力计算公式.结果表明:剪力墙在受力过程中,腹板是主要受力构件;随着高宽比的减小,剪力墙的抗剪承载力和初始抗侧刚度增大;随着轴压比的增大,剪力墙的抗剪承载力增大,但当轴压比超过0.5时,抗剪承载力开始降低;将所提出的剪力墙抗剪承载力计算公式与现有的计算公式相比,计算结果误差较小,可以为工程应用提供参考.
Abstract
In order to evaluate the shear performance and establish shear capacity formula of L-shaped steel plate reinforced concrete shear wall,a nonlinear finite element model was established and verified by using the experimental results.Additionally,the effects of height-width ratio,axial compression ratio,steel plate thickness,concrete strength and flange length on the shear performance of the shear wall were studied.Finally,the shear capacity formula of the shear wall was proposed.The results indicate the web is the main bearing component of the shear wall.With the decrease of height-width ratio,the shear capacity and initial lateral stiffness of shear wall increase.The shear capacity of the shear wall increases with the increase of axial compression ratio,but the shear capacity begins to decrease when the axial compression ratio exceeds 0.5.The shear capacity formula of the shear wall proposed in this paper has a small discrepancy as compared with the existing formula,which can provide a reference for the future engineering applications.
关键词
组合剪力墙/数值分析/参数化分析/抗剪承载力Key words
composite shear wall/numerical analysis/parametric analysis/shear bearing capacity引用本文复制引用
基金项目
中国地震局工程力学研究所基本科研业务费专项资助项目(2020EEEVL0402)
国家重点专项课题(2020YFD1100400)
出版年
2024
国家科技期刊平台
NSTL
万方数据