框架式钢管混凝土桥墩非线性地震反应分析
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摘要
以框架式钢管混凝土桥墩及钢筋混凝土空心薄壁墩为研究对象,采用纤维单元建立了框架式钢管混凝土桥墩及钢筋混凝土空心薄壁墩的非线性动力分析模型,输入3条地震波,计算得到了框架式钢管混凝土桥墩与钢筋混凝土空心薄壁墩的线性及非线性地震时程响应,比较了不同类型桥墩地震响应的差异,讨论了框架式钢管混凝土桥墩的地震反应特点。
Taking concrete-filled steel tubular frame pier and hollow thin-walled pier as the research projects,the dynamic time-history analysis models are established by using the fiber element for concrete-filled steel tubular frame pier and hollow thin-walled pier.By inputting 3 actual seismic waves into the analysis models,the linear and nonlinear time-history response is analyzed respectively.Based on the analysis results,the effect of seismic response for different piers is compared,and seismic response characteristics of frame pier are discussed.The results show that shear response appears linear distribution,moment response represents serrated distribution and axial force response emerges stepwise increase along the column height for frame pier under the action of waves.Shear,moment and axial force response of one column of frame pier are relatively smaller compared with hollow thin-walled pier under the action of waves.
Taking concrete-filled steel tubular frame pier and hollow thin-walled pier as the research projects,the dynamic time-history analysis models are established by using the fiber element for concrete-filled steel tubular frame pier and hollow thin-walled pier.By inputting 3 actual seismic waves into the analysis models,the linear and nonlinear time-history response is analyzed respectively.Based on the analysis results,the effect of seismic response for different piers is compared,and seismic response characteristics of frame pier are discussed.The results show that shear response appears linear distribution,moment response represents serrated distribution and axial force response emerges stepwise increase along the column height for frame pier under the action of waves.Shear,moment and axial force response of one column of frame pier are relatively smaller compared with hollow thin-walled pier under the action of waves.
引文
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[9]刘晶波,郭冰,刘阳兵.组合梁-方钢管混凝土柱框架结构抗震性能的pushover分析[J].地震工程与工程振动,2008,28(5):87-92.Liu Jinbo,Guo Bing,Liu Yangbing.Pushover analysis of seismicbehavior of steel-concrete composite beam and concrete-filled rectan-gular tube frame structure[J].Journal of Earthquake Engineeringand Engineering Vibration,2008,28(5):87-92.
[10]臧华,刘钊,李红英,等.钢管混凝土桥墩抗震性能试验研究[J].防灾减灾工程学报,2010,30(4):442-446.Zang Hua,Liu Zhao,Li Hongying,et al.Experimental study onseismic performance of concrete-filled steel bridge piers[J].Jour-nal of Disaster Prevention and Mitigation Engineering,2010,30(4):442-446.
[11]陈雪莲.方钢管混凝土柱-钢梁组合框架抗震性能研究[D].长沙:湖南大学,2009.Chen Xuelian.Research on Seismic Behavior of Steel Beam-SquareConcrete-Filled Steel Tube Column Frame[D].Changsha:HunanUniversity,2009.
[12]JTG/T B02-01—2008公路桥梁抗震设计细则[S].北京:人民交通出版社,2008.JTG/T B 02-01—2008 Guidelines for Seismic Design of HighwayBridges[S].Beijing:China Communications Press,2008.
[2]臧博.钢管混凝土桥墩抗震性能分析[D].重庆:重庆交通大学,2010.Zang Bo.The Analysis of Seismic Performance of Concrete-FilledSteel Tubular Pier[D].Chongqing:Chongqing Jiaotong University,2010.
[3]臧华,刘钊.钢管混凝土桥墩的应用与研究[J].中国工程科学,2007,9(7):71-74.Zang Hua,Liu Zhao.Application and research of concrete-filledsteel bridge piers[J].Engineering Science,2007,9(7):71-74.
[4]Kitada T.Ultimate strength and ductility of state-of-art concrete-filled steel bridge piers in Japan[J].Engineering Structure,1998,20(4):347-354.
[5]Tamai S,Sato T,Okmoto M.Hysteretic Model of Steel Jacketed RCColumns for Railway Viaducts[C].Lucerne:Proceedings of the16th Congress of IABSE,2000.
[6]Bruneau M,Marson J.Seismic design of concrete-filled circular steelbridge piers[J].Journal of Bridge Engineering,2004,9(1):24-34.
[7]Marson J,Bruneau M.Cyclic testing of concrete-filled circular steelbridge piers having encased fixed-based detail[J].Journal of BridgeEngineering,2004,9(1):14-23.
[8]王占飞,张海,张敏江,等.部分填充钢管混凝土桥墩抗震性能的数值分析[J].沈阳建筑大学学报:自然科学版,2008,24(6):949-953.Wang Zhanfei,Zhang Hai,Zhang Minjiang,et al.Analy tical studyon seismic performance of partially concrete-filled steel bridge piers.[J].Journal of Shenyang Jianzhu University:Nature Science,2008,24(6):949-953.
[9]刘晶波,郭冰,刘阳兵.组合梁-方钢管混凝土柱框架结构抗震性能的pushover分析[J].地震工程与工程振动,2008,28(5):87-92.Liu Jinbo,Guo Bing,Liu Yangbing.Pushover analysis of seismicbehavior of steel-concrete composite beam and concrete-filled rectan-gular tube frame structure[J].Journal of Earthquake Engineeringand Engineering Vibration,2008,28(5):87-92.
[10]臧华,刘钊,李红英,等.钢管混凝土桥墩抗震性能试验研究[J].防灾减灾工程学报,2010,30(4):442-446.Zang Hua,Liu Zhao,Li Hongying,et al.Experimental study onseismic performance of concrete-filled steel bridge piers[J].Jour-nal of Disaster Prevention and Mitigation Engineering,2010,30(4):442-446.
[11]陈雪莲.方钢管混凝土柱-钢梁组合框架抗震性能研究[D].长沙:湖南大学,2009.Chen Xuelian.Research on Seismic Behavior of Steel Beam-SquareConcrete-Filled Steel Tube Column Frame[D].Changsha:HunanUniversity,2009.
[12]JTG/T B02-01—2008公路桥梁抗震设计细则[S].北京:人民交通出版社,2008.JTG/T B 02-01—2008 Guidelines for Seismic Design of HighwayBridges[S].Beijing:China Communications Press,2008.
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