大型工程结构失稳问题的数值模拟研究及预防措施  

Research on Numerical Simulation of Large Engineering Structural Instability and its Preventive Measures

作　　者：王思晨[1] 陈龙[1] 石健[1] 齐晖[1] 车金如[1] 

机构地区：[1]宁波工程学院,浙江宁波315211

出　　处：《河北能源职业技术学院学报》2016年第4期67-71,共5页Journal of Hebei Energy College of Vocation and Technology

基　　金：浙江省大学生科技创新活动计划暨新苗人才计划项目"大型工程结构失稳问题的数值模拟研究"(2014R422029)阶段成果;浙江省教育厅教科规课题"培养‘3I特质’卓越土木工程师为导向的力学课程群体系研究与实践"(2014SCG301)项目的部分成果

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 struc- tural instability and proposes preventive measures.

关 键 词：结构失稳 数值模拟 力学模型 

分 类 号：TD32[矿业工程—矿井建设]