标题:
预应力混凝土桥梁过火后性能退化研究综述Research Review on the Performance Degradation of Burnt Prestressed Concrete Bridges
作者:
彭澍, 叶文亚, 王玉祥, 李方元
关键字:
预应力混凝土桥梁, 过火结构, 承载力, 性能退化Prestressed Concrete Bridge, Burnt Structure, Bearing Capacity, Performance Degradation
期刊名称:
《Hans Journal of Civil Engineering》, Vol.5 No.4, 2016-07-28
摘要:
本文总结了混凝土、普通钢筋及预应力钢筋高温后的材料力学性能，以及基于预应力混凝土模型梁受火试验的结构力学性能和相应的残余承载力计算方法，分析了桥梁火灾的特点，分析了试验研究与实际桥梁火灾的差异性，并据此讨论了针对桥梁火灾目前试验研究尚存在的问题。
This article summarized the mechanical properties of concrete, steel bar and tendon after burned with prestressed concrete beams. The calculation method of remaining bearing capacity of burnt beams was presented. The properties of burnt bridges were analyzed with the difference between experimental researches and the actual fire disasters of bridges, and then discussed the still existing problems about burnt bridges in current research.