“建桥合一”式高架车站多遇地震水平抗震性能研究被引量：1

Seismic Performance of Integral Elevated Stations during Earthquakes of Low Magnitude Scales

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摘要《城市轨道交通结构抗震设计规范》规定,对于高架车站承受列车荷载的结构按《铁路工程抗震设计规范》抗震设计,非承受列车荷载结构按《建筑抗震设计规范》抗震设计。"建桥合一"的高架车站存在各规范对年超越概率、反应谱定义方式和参数取值以及强度验算指标规定不统一的问题,给设计工作带来困扰。结合工程实例,对多遇地震水平各规范应用中的设计水准以及强度指标相对安全性进行分析。研究表明:在多遇地震情况下,《城市轨道交通结构抗震设计规范》设计水准以及反应谱峰值远高于《建筑抗震设计规范》和《铁路工程抗震设计规范》;在强度验算方面,以《铁路工程抗震设计规范》的容许应力为验算标准更为安全,并在工程实例分析中得到验证;地铁高架车站多遇地震水平的强度验算过程可简化为采用《城市轨道交通结构抗震设计规范》进行地震动输入、直接采用《铁路工程抗震设计规范》进行强度验算。 The"Code for the Seismic Design of Urban Rail Transit Structures"stipulates that structures at elevated stations that bear train loads should be designed according to the"Code for Seismic Design of Railway Engineering,"and structures without bearing train loads should be designed according to the"Code for Seismic Design of Buildings."For integrated building–bridge elevated stations,this regulation causes differences in the stipulation of exceeding probability,the definition of the response spectrum,the value of parameters,and the checking for strength indicators.These differences create problems for the designer.In combination with an engineering example,the design level and relative safety of strength indicators in each code were analyzed under a small earthquake.The study shows that the design level and peak response spectrum of the"Code for Seismic Design of Urban Rail Transit Structures"are much higher than those of the"Code for Seismic Design of Buildings"and"Code for Seismic Design of Railway Engineering"under a small earthquake.When checking for strength,it is safer to use the allowable stress in the"Code for Seismic Design of Railway Engineering"as the checking standard,and this was verified by the analysis of an engineering example.The strength checking method for subway elevated stations under a small earthquake can be simplified.The"Code for Seismic Design of Urban Rail Transit structures"should be employed to input earthquake records.The"Code for Seismic Design of Railway Engineering"should be adopted to check strength directly.

作者刘继兵陈壮壮聂利英 LIU Jibing;CHEN Zhuangzhuang;NIE Liying(JSTI GROUP,Nanjing 210019;Hohai University,Nanjing 210098)

机构地区苏交科集团股份有限公司河海大学

出处《都市快轨交通》北大核心 2020年第1期77-83,共7页 Urban Rapid Rail Transit

关键词整体式高架车站抗震规范设防水准强度验算 Integral elevated station seismic code precaution criterion checking for strength

分类号 U24 [交通运输工程—道路与铁道工程]