【摘要】 基于动力相似理论,推导了集装箱码头岸边起重机(简称岸桥)原型结构和1∶50缩比模型的相似比例因子;利用锤击模态试验和地震振动台试验分别获取了1∶50缩比模型的动态特性和地震响应;同时,使用ANSYS软件对原型结构相应的动态行为也进行了系统地分析.研究结果表明,1∶50缩比模型能够准确地预测出其原型结构的动态特性和地震响应,并能为后续的研究提供一个可靠的试验模型.更多还原

【Abstract】 Based on the dynamic similitude theory,a detailed deduction process on the similarity scale factors between the prototype and 1∶50 scale model was presented.A hammering modal test and a series of seismic shaking table tests were successively carried out to obtain the dynamic characteristics and the seismic responses of this 1∶50 scale model.Meanwhile,the corresponding dynamic behaviors of the prototype were also systematically analyzed by the use of the ANSYS software.The investigation results indicate that the 1∶50 scale model can accurately predict the dynamic performances and seismic responses of the prototype with small error and can provide a reliable testing model for the following studies.更多还原