装配式预制混凝土框架振动台试验数值模拟  

Numerical simulation of shaking table test on a fabricated precast concrete frame structure

作　　者：祝辉庆 赵斌[1] 吕西林[1] 

机构地区：[1]同济大学土木工程防灾国家重点实验室,上海200092

出　　处：《武汉大学学报（工学版）》2017年第6期815-822,共8页Engineering Journal of Wuhan University

基　　金：国家自然科学基金项目(编号:51578401)

摘　　要：在回顾与总结以往装配式预制混凝土框架振动台试验的基础上,采用双线性弹簧单元模拟节点连接,在不同地震水准条件下保持材料弹性,对装配式预制混凝土框架进行弹性动力时程分析并与振动台试验结果进行对比分析.结果表明,数值模拟的结果与振动台试验结果基本吻合,说明双线性弹簧单元模拟的节点连接模型是合理的、可靠的,计算精度可以满足一般工程要求,相比于复杂的非线性节点连接,更具有工程应用价值.Based on the review and summary of previous fabricated precast concrete frame structure shaking table test, elastic dynamic history analysis is performed with comparison of results of shaking table test. In the calculations, the beam-to-column connections are simulated by bilinear spring element, while the material kept elastic under different earthquake levels. The results show that the numerical simulation predicting values close to shaking table test ones. It is shown that the simplified connection model with bilinear spring element is reasonable, reliable and can meet the application of general engineering. Compared to the complex nonlinear connection, the simplified connection has engineering application value.

关 键 词：预制混凝土 装配式节点 振动台试验 双线性弹簧单元 

分 类 号：TU759.3[建筑科学—建筑技术科学] TU756