基于时程法的起重机桥架结构模拟地震反应研究  

Research on simulated seismic response of crane bridge structure based on time-history method

作　　者：滕彪[1] 程文明[1] 朱小海[1] 

机构地区：[1]西南交通大学机械工程学院,成都610031

出　　处：《起重运输机械》2013年第9期1-4,共4页Hoisting and Conveying Machinery

基　　金：国家质检总局科技计划项目"金属陶瓷复合涂层在电梯渐进式安全钳的应用初步研究"(2010QK089)

摘　　要：采用基于时程法的起重机桥架结构瞬态动力学分析,选择参数来模拟地震波,并利用时间历程后处理器计算得到地震过程中桥架上任意节点随时间变化的应力应变,最后进行地震反应分析和桥架结构改造分析,对某核废料起重机桥架(12.5/12.5 t-15.34 m)进行稳定性评估,该方法为判断起重机设计是否满足地震设计要求提供了计算数据,为起重机的进一步研究提供了一种方法和理论依据。The transient dynamic analysis for crane＇s bridge structure is performed based on time-history method to se-lect parameters to simulate the seismic wave.The time-history postprocessor is used to calculate stress-strain of any node on the bridge over time during the earthquake.Finally, the stability evaluation for the bridge of certain nuclear waste crane is performed through seismic response analysis and bridge structural modification analysis.This method provides calculation data for judging whether the crane design meets the seismic design requirements or not , offering a method and theoretic ba-sis for further research on cranes.

关 键 词：起重机 地震反应 时程分析法 模拟 研究 

分 类 号：TH215[机械工程—机械制造及自动化]