摘要
在岸桥的地震研究中,地震激励可以分解为空间坐标系中三个相互垂直的分量。结合地震灾害与岸桥结构的自身特性分析,并通过有限元仿真计算确定沿大梁方向水平地震分量(X向)对岸桥结构地震响应的影响最大。以此为基础提出地震输入简化方式,即在后续的仿真计算与模型试验中只需输入X向地震激励。最后进行相似模型振动台地震模拟试验验证,试验结果表明,在岸桥地震研究中采用所提出的地震输入简化模型是可行的。
In seismic response study of container cranes, the seismic excitation can be divided into three mutually perpendicular components in the space coordinate system. Combined with the analysis of seismic disaster and the characteristics of the container crane, the finite element simulation results show that the horizontal seismic component （in the X direction） has the largest influence on the seismic response of the container crane. On this basis, the simplified method of seismic input is put forward, that is, only the earthquake excitation in the X-direction is needed as the input in the subsequent simulation calculation and model test. Finally, the similar model shaking table seismic simulation test is carried out, and the experimental results show that the simplified seismic input method proposed is feasible in the seismic study of container cranes.
作者
李哲
伍世英
王贡献
LI Zhe;WU Shiying;WANG Gongxian(School of Mechanicl Engineering,Yangtze University,Jingzhou 434023,Hubei China;School of Logistics Engineering,Wuhan University of Technology,Wuhan 430063,China)
出处
《噪声与振动控制》
CSCD
2018年第6期217-221,共5页
Noise and Vibration Control
基金
国家自然科学基金资助项目(51275369)
关键词
振动与波
集装箱起重机
地震分量
相似模型
振动台
地震模拟试验
vibration and wave
container crane
seismic component
similar model
shaking table
seismic simulation experiment
