高层转运站结构的动力分析及振动控制研究

Dynamic analysis and research on vibration control of high-rise transfer station structures

为改进高层转运站结构设计,提高高层转运站的抗振动能力,研究了高层转运站结构的动力特性和动力响应.通过有限元模拟,分析了高层转运站在两种振动控制方案下的结构的动力特性和动力响应.结果表明:通廊对提高高层转运站结构整体刚度效果显著;转运站结构的侧向水平振动主要受低频激振力的影响;相对于选用钢筋混凝土"门式"剪力墙加固方案,增设交叉钢支撑更适合作为一种临时加固方案.

In order to improve the design and capacity of collision anti-vibration of high-rise transfer station,dynamic characteristics and responses of vibration of high-rise transfer station were studied.Based on numerical analysis,the original structure and computing models of two strengthening scheme were simulated.Dynamic analysis and displacement response of vibrations were analyzed.The results indicate that corridors have significant effects on the increase of the overall stiffness of transfer station.It also can conclude that lateral horizontal vibration of transfer station is obvious only under low frequency exciting force.Compared to the door-sheer wall strengthening scheme,cross- bracing scheme is more suitable as a temporary reinforcement scheme.