Abstract

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Title:: Dynamic Response Analysis of High-rise Tridimensional Parking Structure During Horizontal Transfer Process of Vehicle

Author(s):: HE Yong-jun; LIU Xiao-hua; ZHOU Xu-hong; School of Civil Engineering, Hunan University

Keywords:: high-rise tridimensional parking structure; horizontal transfer; dynamic response; dynamic amplification factor

Abstract:: The multi-scale three-dimensional finite element model of the high-rise tridimensional parking structure was established using APDL language programming in general finite element software ANSYS, and the technique of birth and death element was adopted in the model to simulate the horizontal transfer process of vehicle on the vehicle-carrying board along the beams. The dynamic response characteristic of beams was analyzed in detail and the dynamic amplification factors of beams under normal operating condition were obtained. Then the influences of contact stiffness between moving mass and beam, moving mass and the moving velocity on the dynamic response of beams were investigated. Finally, the dynamic response characteristic of the whole structure during the horizontal transfer process of vehicle was also discussed. The results show that the vibration response of whole structure during the horizontal transfer process of vehicle is tiny and can be ignored. The dynamic amplification factors of beam are between 1.4 and 1.7 and should be paid attention to.