环形起重设备的局部动力效应和抗震分析  

STUDY ON LOCAL DYNAMIC EFFECT AND ANTI-SEISMIC ANALYSIS OF AN ANNULAR LIFTING EQUIPMENT

作　　者：曲淑英[1] 王心健[1] 曲乃泗[2] 杨春秋[2] 

机构地区：[1]烟台大学土木系,烟台264005 [2]大连理工大学

出　　处：《机械工程学报》2002年第11期80-83,共4页Journal of Mechanical Engineering

基　　金：国家自然科学基金(10142001);山东省自然科学基金(Y2000F01)资助项目。

摘　　要：对大型环形起重机设备进行抗震分析时,考虑了局部动力效应的影响及不同标高处系统加速度谱值的变化,推导了大型环形起重机设备在42.5 m标高处的地震作用及地震响应计算公式。编制了相应的计算程序,通过对实际设备的分析与计算,探讨了局部动力效应及加速度谱值变化的影响,这对工程设计具有一定的指导意义。Anti-seismic analysis of a large annular lifting equipment is carried out under considering the influence of local dynamic effect and the change of system acceleration table value at different elevations, and the calculating formulas of the seismic action and the seismic response at 42.5 m height of elevation in the equipment are deducted. The related calculating procedure is worked out. The local dynamic effect and the influence of change of acceleration spectrum value through analysis and calculation to practical equipment are minutely investigated. These are beneficial to engineering design.

关 键 词：抗震分析 环形起重设备 局部动力效应 地震组合 加速度谱值 

分 类 号：TH21[机械工程—机械制造及自动化]