新型高速铁路客站大跨度站厅结构的竖向地震破坏特征
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摘要
"房桥合一"新型高铁客站的站厅层往往以大跨度钢桁架为其主要结构特征。基于此,以天津西站典型站厅结构为例,提取其主要结构单元,选取多条竖向地震强震记录,并综合采用静力和动力弹塑性方法,研究典型站厅结构大跨度钢桁架单元的竖向地震屈服机制和破坏特征。此外,与站厅结构动力弹塑性计算结果对比,进一步验证了多模态Pushdown方法在大跨结构竖向抗震性能评估中快速有效。
The station hall of new type of integrated building-bridge high-speed railway station usually possesses long-span steel trusses as its main structural feature.Considering this point,the station hall of Tianjin West Railway Station was referred and adopted to extract the main structural unit,select multiple vertical strong earthquake records,adopt taken as an example elastic-plastic methods synthetically.Then,the failure characteristic and yielding mechanism of typical station hall structure under vertical earthquake excitation were systematically studied.In addition,by comparing with dynamic elastic-plastic calculating results of station hall,the advantages of multiple modal Pushdown method in seismic performance assessment of long-span structure were further validated.
The station hall of new type of integrated building-bridge high-speed railway station usually possesses long-span steel trusses as its main structural feature.Considering this point,the station hall of Tianjin West Railway Station was referred and adopted to extract the main structural unit,select multiple vertical strong earthquake records,adopt taken as an example elastic-plastic methods synthetically.Then,the failure characteristic and yielding mechanism of typical station hall structure under vertical earthquake excitation were systematically studied.In addition,by comparing with dynamic elastic-plastic calculating results of station hall,the advantages of multiple modal Pushdown method in seismic performance assessment of long-span structure were further validated.
引文
[1]沈顺高,郭鹏,朱丹.大跨度维修机库屋盖结构地震反应分析[J].建筑结构,2009,39(10):30-34.SHEN Shun-gao,GUO Peng,ZHU Dan.Seismic responseanalysis on the roof structure of a long-span hangar[J].Building Structure,2009,39(10):30-34.
[2]刘飞,汪大海,许敏,等.某超限大跨度结构弹塑性地震反应分析[J].土木工程学报,2010,43(11):27-36.LIU Fei,WANG Da-hai,XU Min,et al.Analysis of theelasto-plastic seismic response of an ultra large spanstructure[J].Civil Engineering Journal,2010,43(11):27-36.
[3]苑宏宇,叶继红,沈世钊,等.单层球面网壳的最不利地震作用分析[J].铁道科学与工程学报,2006,3(3):88-92.YUAN Hong-yu,YE Ji-hong,SHEN Shi-zhao,et al.Themost unfavorable earthquake excitations of single-layerspherical shell[J].Journal of Railway Science and Engi-neering,2006,3(3):88-92.
[4]Chopra A K,Goel R K.A modal pushover analysis proce-dure for estimating seismic demands for buildings[J].Earthquake Engineering and Structural Dynamics,2002,31(3):561-582.
[5]Vamvatsikos D,Cornell C A.Incremental dynamic analy-sis[J].Earthquake Engineering and Structural Dynamics,2002,31(3):491-514.
[6]杨木旺,罗永峰.大跨空间结构的竖向静力弹塑性分析[J].力学季刊,2007,28(3):436-442.YANG Mu-wang,LUO Yong-feng.Vertical static elasto-plastic analysis of long span spatial structure[J].ChineseQuarterly of Mechanics,2007,28(3):436-442.
[7]马千里,叶列平,陆新征.MPA法与Pushover法的准确性对比[J].华南理工大学学报:自然科学版,2008,36(11):121-128.MA Qian-li,YE Lie-ping,LU Xin-zheng.Comparative e-valuation of correctness between MAP and pushover analy-ses[J].Journal of South China University of Technology:Natural Science Edition,2008,36(11):121-128.
[8]ATC 40.Seismic Evaluation and Retrofit of ConcreteBuilding[R].Applied Technology Council California,1996.
[9]GB50011—2010,建筑抗震设计规范[S].GB 50011—2010 Code for seismic design of buildings[S].
[10]北京金土木软件技术有限公司.SAP2000中文版使用指南[M].北京:人民交通出版社,2006.Civil King Software Technology Co Ltd.Sap2000 userguide of chinese version[M].Beijing:China Communi-cations Press,2006.
[2]刘飞,汪大海,许敏,等.某超限大跨度结构弹塑性地震反应分析[J].土木工程学报,2010,43(11):27-36.LIU Fei,WANG Da-hai,XU Min,et al.Analysis of theelasto-plastic seismic response of an ultra large spanstructure[J].Civil Engineering Journal,2010,43(11):27-36.
[3]苑宏宇,叶继红,沈世钊,等.单层球面网壳的最不利地震作用分析[J].铁道科学与工程学报,2006,3(3):88-92.YUAN Hong-yu,YE Ji-hong,SHEN Shi-zhao,et al.Themost unfavorable earthquake excitations of single-layerspherical shell[J].Journal of Railway Science and Engi-neering,2006,3(3):88-92.
[4]Chopra A K,Goel R K.A modal pushover analysis proce-dure for estimating seismic demands for buildings[J].Earthquake Engineering and Structural Dynamics,2002,31(3):561-582.
[5]Vamvatsikos D,Cornell C A.Incremental dynamic analy-sis[J].Earthquake Engineering and Structural Dynamics,2002,31(3):491-514.
[6]杨木旺,罗永峰.大跨空间结构的竖向静力弹塑性分析[J].力学季刊,2007,28(3):436-442.YANG Mu-wang,LUO Yong-feng.Vertical static elasto-plastic analysis of long span spatial structure[J].ChineseQuarterly of Mechanics,2007,28(3):436-442.
[7]马千里,叶列平,陆新征.MPA法与Pushover法的准确性对比[J].华南理工大学学报:自然科学版,2008,36(11):121-128.MA Qian-li,YE Lie-ping,LU Xin-zheng.Comparative e-valuation of correctness between MAP and pushover analy-ses[J].Journal of South China University of Technology:Natural Science Edition,2008,36(11):121-128.
[8]ATC 40.Seismic Evaluation and Retrofit of ConcreteBuilding[R].Applied Technology Council California,1996.
[9]GB50011—2010,建筑抗震设计规范[S].GB 50011—2010 Code for seismic design of buildings[S].
[10]北京金土木软件技术有限公司.SAP2000中文版使用指南[M].北京:人民交通出版社,2006.Civil King Software Technology Co Ltd.Sap2000 userguide of chinese version[M].Beijing:China Communi-cations Press,2006.
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