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	应变率对钢筋混凝土框架结构地震作用下灾变过程影响研究
	王文明 ; 李宏男 ; 王德斌 ; 尚兵 ; WANG Wen-ming ; LI Hong-nan ; WANG De-bin ; SHANG Bing
	2016-03-30 ; 2016-03-30
关键词	钢筋混凝土框架结构 地震作用 增量动力时程分析 应变率 灾变过程 抗倒塌能力 reinforced concrete frame structure earthquake incremental dynamic analysis strain rate failure process collapse-resistant capacity TU375.4
其他题名	Effect of strain rate on the failure process of reinforced concrete frame structure under earthquake
中文摘要	开发了ABAQUS显式用户材料子程序VUMAT,该程序可以考虑材料应变率效应的影响。通过对钢筋混凝土柱的动态和静态加载试验进行模拟,验证了子程序的可靠性。通过对某四层钢筋混凝土框架结构进行增量动力时程分析,研究了材料的应变率效应对结构最大顶点位移、最大基底剪力、最大层间位移、结构的能力曲线、结构的抗倒塌能力和倒塌模式的影响。研究表明,考虑材料的应变率效应后,结构的最大顶点位移和最大层间位移大多数情况下会减小,结构最大层间位移的应变率效应更为明显;当地震波增强到使结构接近于发生倒塌时,结构的最大顶点位移和最大层间位移均明显减小;随着地震波强度的增强,应变率对结构响应的影响趋于明显;结构的抗倒塌能力有一定程度的提高,但连续性倒塌过程基本不变。; According to the "Code for design of concrete structures"(GB 50010-2010),a user subroutine VUMAT that can be implemented in the advanced finite element program ABAQUS was developed.In which the strain rate effect of material can be considered.The simulated results of a reinforced concrete column under static and dynamic loading modes were compared with experimental results,so as to prove the reliablity of the coded subroutine.Incremental dynamic analysis of a four-storey reinforced concrete frame structure was conducted to study the effects of strain rate on the maximum top displacement,maximum base shear,maximum storey drift,capacity curve,collapse-resistant capacity and collapse mode.The results show that the maximum top displacement and maximum storey drift decrease after considering strain rate effect,the maximum storey drift is more sensitive to strain rate than the maximum top displacement.As the intensity of earthquake increases,the influence of strain rate on structural response is more obvious.The collapse process is basically unchanged after considering strain rate effect,but the collapse-resistant capacity increases obviously.
语种	中文 ; 中文
内容类型	期刊论文
源URL	[http://ir.lib.tsinghua.edu.cn/ir/item.do?handle=123456789/143662]
专题	清华大学
推荐引用方式 GB/T 7714	王文明,李宏男,王德斌,等. 应变率对钢筋混凝土框架结构地震作用下灾变过程影响研究[J],2016, 2016.
APA	王文明.,李宏男.,王德斌.,尚兵.,WANG Wen-ming.,...&SHANG Bing.(2016).应变率对钢筋混凝土框架结构地震作用下灾变过程影响研究..
MLA	王文明,et al."应变率对钢筋混凝土框架结构地震作用下灾变过程影响研究".(2016).

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