高温冷却后钢筋混凝土简支梁强度损伤的研究  

Rearch on Simply Supported Reinforced Concrete Beams after Cooling from High Temperature

作　　者：王春华[1] 程超[1] 

机构地区：[1]西南交通大学建筑工程系

出　　处：《西南交通大学学报》1992年第2期65-74,共10页Journal of Southwest Jiaotong University

基　　金：国家自然科学基金

摘　　要：本文对高温冷却后钢筋混凝土简支梁的抗弯能力的损伤进行了研究,提出了计算火烧后钢筋混凝土简支梁剩余承载能力的方法。在混凝土和钢筋高温冷却后强度试验结果的基础上,进行了11根以石灰岩为骨料的钢筋混凝土简支梁高温冷却后的破坏试验,并用分层法对火烧后梁的承载能力试作了计算和分析,计算结果与试验结果吻合较好。The bending ability of simply supported reinforced concrete beams after cooling from high temperature is researched, and a method for estimating the residual bending ability of such beams is presented. On the basis of tested results of concrete strength and steel strsngth after high temperature, eleven simply supported R. C. beams with carbonaceous aggregates are tested, using method of various temperature depth, the paper calculates and analyses the load-bearing capacity of these beams after fire. The results agree well with the experimented data.

关 键 词：高温 钢筋混凝土 简支梁 强度损伤 

分 类 号：TU352.5[建筑科学—结构工程]