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周潇凡,王宪杰,胡彪,王思文,李承玥,曹雨.考虑车辆随机停放的停车楼减震设计与可靠度分析
Shock absorption design and reliability analysis of parking building considering random parking of vehicles[J].计算力学学报,2021,38(1):21~28
考虑车辆随机停放的停车楼减震设计与可靠度分析
Shock absorption design and reliability analysis of parking building considering random parking of vehicles
Shock absorption design and reliability analysis of parking building considering random parking of vehicles
投稿时间:2019-12-21  修订日期:2020-08-29
DOI:10.7511/jslx20191223001
中文关键词:  车辆随机停放  停车楼  扭转破坏  减震  可靠度
英文关键词:random parking  parking building  reverse damage  shock absorption  reliability
基金项目:云南省教育厅科学研究基金(2019Y0018);云南大学理(工)科校级科研项目(K1010858)资助项目.
作者单位
周潇凡 云南大学 建筑与规划学院, 昆明 650500 
王宪杰 云南大学 建筑与规划学院, 昆明 650500 
胡彪 云南大学 建筑与规划学院, 昆明 650500 
王思文 云南大学 建筑与规划学院, 昆明 650500 
李承玥 云南大学 建筑与规划学院, 昆明 650500 
曹雨 云南大学 建筑与规划学院, 昆明 650500 
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中文摘要:
      在停车楼的设计中通常将车辆荷载以活荷载的方式均匀分布到结构上,实际上受车辆随机停放的影响,停车楼结构整体质量中心偏移,一旦结构遭遇罕遇地震时,车辆的随机停放可能造成停车楼结构发生扭转破坏。本文在传统减震设计方法的基础上考虑车辆活荷载的随机性,并从可靠度的角度验算减震结构在大震作用下的倒塌概率。结果表明,相同的减震设计布置在考虑车辆随机性前后,减震停车楼的倒塌概率为0和2.47%。因此未考虑车辆随机停放的传统减震设计方法实际上高估了结构的抗震性能,减震停车楼结构在大震作用下仍存在倒塌的风险。
英文摘要:
      In the design a car of the parking building,the vehicle load is usually evenly distributed to the structure in the form of live load.In fact,due to the random parking of a vehicle,the overall center of mass of a parking building structure is offset.Once such a structure encounters an earthquake,the randomness due to vehicle parking may cause torsional damage to the structure.In this paper,the randomness of vehicle distribution is considered on the basis of traditional shock-absorbing design methods,and the probability of collapse of the shock-absorbing structure under the action of large earthquakes is analysed from the perspective of reliability.The results show that the collapse probability of the shock-absorbing car parking building is 0 and 2.47% before and after considering the randomness of vehicles with the same shock-absorbing design layout.Therefore,the traditional shock-absorbing design method that does not consider the random parking of vehicles actually overestimates the seismic performance of the structure,and the structure of the shock-absorbing parking building still has the risk of collapse under the action of large earthquakes.
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