火灾后型钢混凝土柱抗震性能有限元计算模型  

A FINITE ELEMENT MODEL FOR POST-FIRE SEISMIC PERFORMANCE OF STEEL REINFORCED CONCRETE COLUMNS

作　　者：王广勇[1] 刘庆[1] 张东明[1] 张超[2] WANG Guang-yong LIU Qing ZHANG Dong-ming ZHANG Chao(China Academy of Building Research, Beijing 100013, China College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China)

机构地区：[1]中国建筑科学研究院,北京100013 [2]北京工业大学建筑工程学院,北京100124

出　　处：《工程力学》2016年第11期183-192,共10页Engineering Mechanics

基　　金：国家科技支撑计划课题项目(2014BAL05B04);国家自然科学基金项目(51278477);中国建筑科学研究院自筹基金项目(20120106330730073)

摘　　要：该文建立了型钢混凝土柱温度场计算模型,计算结果与实测结果吻合较好。同时,还提出了型钢混凝土柱过火最高温度场的计算方法,并在考虑型钢与混凝土之间以及钢筋与混凝土之间的界面粘结滑移特性的基础上提出了火灾后型钢混凝土柱抗震性能的有限元计算模型,计算结果与试验结果吻合较好。该文模型可用于型钢混凝土柱火灾后抗震性能的计算与分析。A finite element（FE） model for temperature calculation in steel reinforced concrete（SRC） columns was proposed, and the results of the calculation agree well with those from testing. Then, a calculation method for the highest temperature field of the SRC columns was proposed, based on which a FE model for the post-fire seismic performance of the SRC columns was proposed. In the FE model, the bond-slip properties between steel and concrete and between rebar and concrete are simultaneously considered. It is shown that calculated results agree well with test results, and the FE model can be used to analyze the post-fire seismic performance of SRC columns.

关 键 词：火灾后 温度 型钢混凝土柱 抗震性能 有限元计算模型 

分 类 号：TU398.9[建筑科学—结构工程]