摘要
大型工程结构坍塌事故频发,结构失稳破坏是其主要原因。结构整体失稳往往是由于结构中个别构件发生强度、刚度及失稳破坏而引起。本文针对单个构件失稳破坏引发结构失稳问题,从理论计算和数值模拟两方面给出钢筋混凝土结构细长受压柱的临界荷载,分析结构失稳的原因并给出预防措施。
Large engineering structure collapse accidents are mainly caused by structural instability. The overall structural instability is often attributed to certain particular components of the structure that lead to strength,stiffness and stability failures. The paper only focuses on structural instability problems caused by a single component stability failure. It provides the critical load of reinforced concrete slender compression columns both from the theoretical calculation and numerical simulation. It also analyses the causes of structural instability and proposes preventive measures.
引文
[1]李丽君,沈玉凤.ANSYS对于压杆稳定的辅助教学[J].实验科学与技术,2009,01:121-122+125.
[2]董冠文,李宗义,赵彦军,王泽荫,杨龙,张庆华,杜建霞,赵典凯.压杆稳定临界力欧拉公式统一推导[J].武汉工程大学学报,2012,12:71-74.
[3]冯贤桂.细长压杆临界压力欧拉公式的统一推导[J].力学与实践,2003,04:65-67.
[4]林红,胡玉林,薛世峰.ANSYS在工科材料力学教学中的应用[J].电脑学习,2011,01:15-17.