结构钢材高温过火后性能研究  

RESEARCH ON POST-FIRE PERFORMANCE OF STRUCTURAL STEELS

作　　者：荣成骁 施刚[1] 左勇志[2] 鲁巧稚[2] RONG Chengxiao;SHI Gang;ZUO Yongzhi;LU Qiaozhi(Key Laboratory of Civil Engineering Safety and Durability of China Education Ministry, Department of Civil Engineering Tsinghua University, Beijing 100084, China;Beijing Building Construction Research Institute, Beijing 100039, China)

机构地区：[1]土木工程安全与耐久教育部重点实验室,清华大学土木工程系,北京100084 [2]北京市建筑工程研究院,北京100039

出　　处：《钢结构》2018年第5期122-131,共10页Steel Construction

基　　金：北京市科技计划项目(Z141100006014054)

摘　　要：由于钢材的特殊性,钢结构的火灾危险性是不可忽视的。越来越多的真实案例也需要进一步对高温过火后钢结构的性能进行评估,从而对其可否继续使用以及如何修复给出意见。通过总结国内外学者对钢结构高温过火后母材及焊缝静力拉伸性能的研究,同时根据所收集到的试验结果,对结构钢材高温过火后力学性能指标进行拟合分析,为进一步完善钢结构高温过火后性能的研究提供基础。Considering the characteristics of steel,the fire hazard of steel structures should not be ignored. More and more real cases need to estimate the post-fire performance of steel structures,so that people could judge whether it could be reused after fire or how to repair it. Recent researches on post-fire performance of steel structures including the static tension mechanical properties of materials and welds after fire were comprehensively reviewed. Also,the fitting analysis based on the existing experiment data was carried out,which would provide references for further investigation on post-fire performance of steel structures.

关 键 词：钢结构 结构钢材 高温过火后 

分 类 号：TU352.5[建筑科学—结构工程] TU391