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原文传递 Novel Framework for Vibration Serviceability Assessment of Stadium Grandstands Considering Durations of Vibrations

题名：	Novel Framework for Vibration Serviceability Assessment of Stadium Grandstands Considering Durations of Vibrations
其他题名：	Abdeljaber,O.,et al.(2016)."Dynamic testing of a laboratory stadium structure."Proc.,Joint Geotechnical and Structural Engineering Congress,ASCE,Reston,VA,1719-1728.
正文语种：	英文
作者：	Ngoan T. Do
关键词：	Structural health monitoring;Stadium vibration;Serviceability;Human comfort;Shock and vibratory effects
摘要：	Annoying vibrations in grandstand structures have been receiving more attention due to the increasing slenderness of the architectural components and the complexity of the crowd loading for engineers. The vibration serviceability checks under these conditions become a challenge in the design and operation stages. Regarding human comfort, excessive vibrations due to occupant activities may affect comfort and/or cause panic, especially for passive occupants who do not participate in generating excitations. Although durations of excessive vibrations have been considered as one of the most important factors affecting occupant comfort, incorporating the vibration duration in the occupant comfort analysis has not been addressed yet. In addition, the currently available approaches using raw acceleration, weighted RMS acceleration, vibration dose values (VDV), and so on may not always be sufficient for serviceability assessment due to the lack of guided procedure for calculating the integration time and implementing the duration of vibration into the process. Therefore this study proposes a new parameter and framework for assessing human comfort which incorporates the duration of vibration with conventional data processing. The aim is to better examine vibration levels and the corresponding occupant response focusing on grandstand structures. A new parameter, the area of RMS (ARMS), is introduced using the running RMS values of acceleration weighted by the frequency weighting functions. Furthermore, perception ranges for human comfort levels based on the proposed parameter are presented. The experimental study reveals that the proposed framework can successfully address the impact of duration time on determining the levels of vibrations and comfort using the proposed parameter.
出版年：	2018
论文唯一标识：	P-26Y2018V144N02034
英文栏目名称：	TECHNICAL PAPERS
doi：	10.1061/(ASCE)ST.1943-541X.0001941
期刊名称：	Journal of Structural Engineering
拼音刊名(出版物代码)：	P-26
卷：	144
期：	02
页码：	401-414