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首页> 外文期刊>The structural design of tall buildings >Dynamic response of the high-rise steel tridimensional parking structure for vertical impact excitation of the lifting system
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Dynamic response of the high-rise steel tridimensional parking structure for vertical impact excitation of the lifting system

机译：高层钢立体停车库对提升系统垂直冲击激励的动力响应

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摘要

For the vertical lifting high-rise steel tridimensional parking structure, the vertical impact excitation resulting from the repeated acceleration and deceleration of the lifting system is analyzed and obtained according to the operational mode of lifting system. The dynamic model of the parking structure is established, and the structural dynamic response for vertical impact excitation of the lifting system is analyzed by the finite element software ANSYS (Ansys Inc., Cecil Township, Pa, USA). Influence of various factors, such as the lifting height of the lifting cage, structural damping, parking case, speedup mode and abnormal operation of the lifting system, on the structural dynamic response is investigated, and the corresponding suggestions on vibration reduction and rational speedup mode are given. Finally, the structural dynamic buckling caused by vertical impact excitation of the lifting system is discussed. The results indicate that the maximum structural vibration response occurs in the acceleration stage after start of the lifting system and depends on the velocity pattern. Additionally, the lifting height and structural damping have not remarkable influence on the maximum structural vibration response. It is suggested that the vehicles be parked in the garage from bottom to top symmetrically, and the abnormal speedup or stop of the lifting system should be avoided. Copyright (c) 2015 John Wiley & Sons, Ltd.
机译：对于立式升降高层钢结构三维停车库，根据升降系统的运行方式，对升降系统反复加减速产生的垂直冲击激励进行分析和计算。建立了停车结构的动力学模型，并通过有限元软件ANSYS（Ansys Inc.，塞西尔镇，美国宾夕法尼亚州）分析了提升系统垂直冲击激励的结构动力响应。研究了起重笼的起升高度，结构阻尼，停车箱，提速模式和举升系统异常运行等因素对结构动力响应的影响，并针对减振和合理提速模式提出了相应的建议。给出。最后，讨论了起重系统垂直冲击激励引起的结构动力屈曲。结果表明，最大的结构振动响应出现在提升系统启动后的加速阶段，并且取决于速度模式。此外，提升高度和结构阻尼对最大结构振动响应没有显着影响。建议将车辆从下到上对称地停放在车库中，并应避免举升系统异常加速或停止。版权所有（c）2015 John Wiley＆Sons，Ltd.

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