部分填充圆形钢管混凝土桥墩子结构拟动力试验
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摘要
目的探明在整体桥梁中部分填充圆形钢管混凝土桥墩在E1和E2地震动作用下的非线性动力性能,提出合理的桥墩抗震设计.方法通过桥墩柱的子结构拟动力试验研究,了解整个桥梁结构的受力特点,利用试验和数值分析相结合的方法,对部分填充圆形钢管混凝桥墩在整体桥梁上的抗震性能进行分析.其中E1和E2地震动分别输入EL CENTRO波和日本神户地震JRT-NS波等两种工况.结果得到了在这两种工况作用下试验子结构桥墩的反应位移和水平力-位移滞回曲线.数据曲线表明了桥墩模型在E1和E2地震作用下的破坏情况与试验结果能够较好吻合.结论表明在E1地震动作用下桥墩处于弹性状态,在E2地震作用下桥墩处于弹塑性状态,没有明显的破坏迹象,表现出良好的抗震性能.该试验方法对于探明关键构件对桥梁等整体结构力学性能影响的有效性.
In order to investigate the nonlinearity dynamic performance of partially concrete-filled circular steel bridge pier under E1 and E2 ground motion in bridge system,the paper analyzes the seismic performance of circular steel bridge pier with partially concrete-filled based on the method of combining with experimental and numerical analysis.It inputted EL CENTRO earthquake wave and Japan Kobe JRT-NS earthquake wave as the E1 and E2 ground motion.These reaction displacement and horizontal hysteresis force-displacement curves were obtained from the experiment.These results reveal that the bridge pier with partially concrete-filled keeps in the elastic stage under the E1 ground motion,and the bridge pier enters plasticity without significant damage under E2 ground motion and it shows better seismic performance.It also reveals that the experimental method is effective for proving the influence of the key component to the mechanics properties of the bridge.
In order to investigate the nonlinearity dynamic performance of partially concrete-filled circular steel bridge pier under E1 and E2 ground motion in bridge system,the paper analyzes the seismic performance of circular steel bridge pier with partially concrete-filled based on the method of combining with experimental and numerical analysis.It inputted EL CENTRO earthquake wave and Japan Kobe JRT-NS earthquake wave as the E1 and E2 ground motion.These reaction displacement and horizontal hysteresis force-displacement curves were obtained from the experiment.These results reveal that the bridge pier with partially concrete-filled keeps in the elastic stage under the E1 ground motion,and the bridge pier enters plasticity without significant damage under E2 ground motion and it shows better seismic performance.It also reveals that the experimental method is effective for proving the influence of the key component to the mechanics properties of the bridge.
引文
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[10]Fung T C,Soh C K,Chan T K,et al.Stress concentration factors of doubler plate reinforced tubular T joints[J].Journal of Structural Engineering,2002,128(12):1399-1412.
[11]王占飞,隋伟宁,吴权.E2地震作用下部分填充钢管混凝土桥墩非线性时程分析及抗震性能评价[J].工程力学,2011,28(6):185-192.(Wang Zhanfei,Sui Weining,Wu Quan.Nonlinear time-history analysis and verification for seismic performance of partially concrete-filled steel bridge under E2 earthquake motion[J].Engineering Mechanics,2011,28(6):185-192.)
[12]Wang Zhanfei,Toshitaka Yamao.Ultimate strength and ductility of stiffened steel tubular bridge piers[J].International Journal of Steel Structures,2011,11(1):81-90.
[13]冯帆,王强,王占飞.基于有限元软件ABAQUS的子结构拟动力试验技术[J].结构工程师,2011,27:82-87.(Feng Fan,Wang Qiang,Wang Zhanfei.Research on hybrid simulation w ith finite element softw are ABAQUS[J].Structural Engineers,2011,27:82-87.)
[14]Mazzoni S,McKenna F,Scott M H,et al.OpenSees users manual[R].Berkeley:University of California,2004.
[15]Campione G,Scibilia N.Beam-column behavior of concrete filled steel tubes[J].Steel and Composite Structure,2002,2(4):259-276.
[2]中国科学院地理科学与资源研究所.玉树地震区域生态环境图集[M].北京:科学出版社,2010.(Institute of Geographic Sciences and Natural Resources Research.Regional ecological environment of Yushu earthquake[M].Beijing:Science Press,2010.)
[3]中华人民共和国交通运输部.JTG/T B02-012008公路桥梁抗震设计细则[M].北京:人民交通出版,2008.(Ministry of Transport of the People Republic of China.JTG/T B02-01-2008 Highw ay bridge seismic design rules[M].Beijing:China Communications Press,2008.)
[4]中华人民共和国住房与城乡建设部.CJJ 1662011城市桥梁抗震设计规范[S].北京:中国建筑工业出版社,2011.(Ministry of Housing and Urban-Rural Development of the People's Republic of China.CJJ 166-2011 Code for seismic design of urban bridge[S].Beijing:China Architecture&Building Press,2011.)
[5]Matsui C.Structural performance and design of concrete filled steel tubular structures[J].JSSC Steel Construction Engineering,2006,16:17-19.
[6]Julia M,Michel B.Cyclic testing of concrete-filled circular steel bridge piers having encased fixed-based detail[J].Journal of Bridge Engineering,ASCE,2004,9(1):14-23.
[7]Michel B,Julia M.Seismic design of concrete-filled circular steel bridge piers[J].Journal of Bridge Engineering,ASCE,2004,9(1):24-34.
[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):49-54.(Wang Zhanfei,Zhang Hai,Zhang Minjiang,et al.Analytical study on seismic performance of partially concrete-filled steel bridge pier[J].Journal of Shen-yang Jianzhu University:Natural Science,2008,24(6):49-54.)
[9]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 on seismic performance of concretefilled steel bridge piers[J].Journal of Disaster Prevention and Mitigation Engineering,2010,30(4):442-446.)
[10]Fung T C,Soh C K,Chan T K,et al.Stress concentration factors of doubler plate reinforced tubular T joints[J].Journal of Structural Engineering,2002,128(12):1399-1412.
[11]王占飞,隋伟宁,吴权.E2地震作用下部分填充钢管混凝土桥墩非线性时程分析及抗震性能评价[J].工程力学,2011,28(6):185-192.(Wang Zhanfei,Sui Weining,Wu Quan.Nonlinear time-history analysis and verification for seismic performance of partially concrete-filled steel bridge under E2 earthquake motion[J].Engineering Mechanics,2011,28(6):185-192.)
[12]Wang Zhanfei,Toshitaka Yamao.Ultimate strength and ductility of stiffened steel tubular bridge piers[J].International Journal of Steel Structures,2011,11(1):81-90.
[13]冯帆,王强,王占飞.基于有限元软件ABAQUS的子结构拟动力试验技术[J].结构工程师,2011,27:82-87.(Feng Fan,Wang Qiang,Wang Zhanfei.Research on hybrid simulation w ith finite element softw are ABAQUS[J].Structural Engineers,2011,27:82-87.)
[14]Mazzoni S,McKenna F,Scott M H,et al.OpenSees users manual[R].Berkeley:University of California,2004.
[15]Campione G,Scibilia N.Beam-column behavior of concrete filled steel tubes[J].Steel and Composite Structure,2002,2(4):259-276.
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