摘要
提出了一种钢管混凝土边框内藏分块钢板的双肢剪力墙,通过低周反复荷载试验研究其抗震性能,分析了各试件的破坏特征、承载力、滞回特性、耗能和墙底截面的应变分布情况。研究表明:内藏分块钢板的加设可大幅提高双肢剪力墙的承载力和耗能能力,刚度也得到了提升,充分发挥了钢管、型钢、钢板与混凝土墙体共同抵抗地震作用的效能。根据试验结果,建立了钢管混凝土边框内藏分块钢板双肢剪力墙的承载力计算公式,计算结果与试验结果吻合.
A coupled shear wall with concealed partitioned steel plates and concrete filled steel tube （CFST） boundary elements was proposed in this study. By experiment on two coupled shear wall specimens subjected to low cyclic loading, the seismic behavior of the coupled shear wall was investigated. The failure characteristics, load bearing capacity, hysteretic behavior, energy dissipation and strain distribution at the wall bottom section were ana- lyzed. The experiment results show that addition of the concealed partitioned steel plates can greatly improve the bearing capacity and the energy dissipation, and enhance the stiffness to a certain extent. The coupled shear wall can give full play to the seismic efficiency when the steel pipe, I - shaped steel, steel plate and concrete wall work together to resist seismic action. A formula to calculate the bearing capacity of coupled shear wall with concealed partitioned steel plates and CFST boundary elements is proposed, and the results calculated by the formula agree well with the experimental results.
出处
《自然灾害学报》
CSCD
北大核心
2016年第6期130-137,共8页
Journal of Natural Disasters
基金
国家自然科学基金项目(51478020)~~
关键词
双肢剪力墙
分块钢板
抗震试验
承载力计算模型
coupled shear wall
partitioned steel plate
seismic experiment
bearing capacity calculation model
