新西海桥的非线性地震响应分析
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摘要
本文讨论了日本第一座公路钢管混凝土拱桥——主跨230m的新西海桥的非线性地震响应特性。采用三维有限元计算模型,用纤维单元法考虑钢管混凝土的材料非线性,用P-δ效应考虑几何非线性,讨论了在纵桥向地震作用、横桥向地震作用以及纵、横桥两方向同时作用情况下该桥的非线性地震响应特性和抗震性能。计算表明,在纵桥向地震作用时轴力的作用显著,拱脚附近产生的内力较大;而横桥向地震作用时轴力和面外弯矩作用显著,拱脚以及拱肋与桥面连接附近产生的内力较大;横向地震响应远大于纵向地震响应;应考虑纵、横桥向地震力共同作用的影响。
This paper examines the nonlinear seismic responses of New Saikai Bridge,which has a main span length of 230 m and is the first CFT arch bridge of highway bridges in Japan.Using a three-dimensional FE model,in which the fiber model is used to consider the material nonlinearity and the P-δ effect are used to consider the geometric nonlinearity.The nonlinear seismic characteristics and seismic performance of this bridge are examined in detail by subjecting the bridge to strong earthquakes in the out-of-plane direction,the longitudinal direction,or the combined out-of-plane and longitudinal directions.It is shown that: the axial forces are predominant when subjected to an earthquake in the out-of-plane direction;the axial forces and out-of-plane bending moments are predominant when subjected to an earthquake in the longitudinal direction;the responses subjected to earthquake in the out-of-plane direction are larger than those in the longitudinal direction;the effect of the combined out-of-plane and longitudinal excitations should be considered.
This paper examines the nonlinear seismic responses of New Saikai Bridge,which has a main span length of 230 m and is the first CFT arch bridge of highway bridges in Japan.Using a three-dimensional FE model,in which the fiber model is used to consider the material nonlinearity and the P-δ effect are used to consider the geometric nonlinearity.The nonlinear seismic characteristics and seismic performance of this bridge are examined in detail by subjecting the bridge to strong earthquakes in the out-of-plane direction,the longitudinal direction,or the combined out-of-plane and longitudinal directions.It is shown that: the axial forces are predominant when subjected to an earthquake in the out-of-plane direction;the axial forces and out-of-plane bending moments are predominant when subjected to an earthquake in the longitudinal direction;the responses subjected to earthquake in the out-of-plane direction are larger than those in the longitudinal direction;the effect of the combined out-of-plane and longitudinal excitations should be considered.
引文
[1]陈宝健,许有胜,陈宝春.日本钢筋混凝土拱桥调查与分析[J].中外公路,2005,4:99-101.
[2]日本鋼構造協会.合成.複合構造の活用による鋼橋の高性能化[M].日本,2002.
[3]刘玉擎,陈宝春,彦坂熙.中国における钢管コンクリ?ト合成ア?チ橋および水平旋回架设工法の発展[J].桥梁と基础(日),1999,2:41-44.
[4]吴庆雄,陈宝春,高桥和雄,等.中国におけるコンクリ?ト充填鋼管ア?チ橋の建設の状況と技術の課題[J].橋梁と基礎(日),2001,10:40-46.
[5]陈宝春.钢管混凝土拱桥设计与施工[M].2版,北京:人民交通出版社,2007.
[6]陈宝春.钢管混凝土拱桥抗震理论研究[R].国家基金结题报告,2003.
[7]徐艳,胡世德.钢管混凝土拱桥弹性动力稳定性能研究[J].地震工程与工程振动,2006,26(4):162-167.
[8]陈宝春.钢管混凝土拱桥计算理论研究进展[J].土木工程学报,2003,36(12):47-57.
[9]李巧,熊峰.钢管混凝土拱桥三维弹塑性时程分析[J].哈尔滨建筑大学学报,2001(增刊):128-132.
[10]刘玉擎,郭彦林.钢管拱桥在大地震作用下的非线性反应分析[J].地震工程与工程振动,2003,23(1):44-49.
[11]孙潮,陈宝春,陈水盛.钢管-钢管混凝土复合拱桥动力特性分析[J].地震工程与工程振动,2001,21(2):48-52.
[12]胡世德,王君杰,魏红一,等.丫髻沙大桥主桥抗震性能研究[J].铁道标准设计,2001,6:21-25.
[13]赵灿晖,周志祥.多维地震激励作用下大跨度钢管混凝土提篮拱桥的随机响应[J].地震工程与工程振动,2005,25(3):87-92.
[14]刘玉擎,彦坂熙,陈宝春.コンクリ?ト充填鋼管を主構とする中路式ア?チ橋の静力学的および非線形地震?答特性[J].鋼構造論文集,1999,6:53-61.
[15]刘玉擎,彦坂煕,陈宝春.架構式合成タイドア?チ橋の構造特性および耐震性能[J].構造工学論文集,2001,47A:1475-1484.
[16]刘玉擎,彦坂煕.コンクリ?ト充填鋼管を用いたブレ?ストリブア?チ橋の終局?度と耐震性能の評価法[J].土木学会論文集,2002,703/I-59:313-325.
[17]吴庆雄,高橋和雄,松坂博幸,等.コンクリ?ト部分充填鋼管ア?チ橋の動特性に関する研究[J].鋼構造年次論文報告集,2002,10:141-148.
[18]日本道路協会.道路橋示方恕ね庹h[S].V耐震設計編,1996.
[19]Earthquake Engineering Committee of Japan Society of Civil Engineers.Earthquake resistant design codes in Japan[S].Japan Society of Civil En-gineering,Japan,2000.
[20]范立础,胡世德,叶爱君.大跨度桥梁抗震设计[M].北京:人民交通出版社,2001.
[21]?ア?ク情報システム.TDAPⅢ機能説明?.2003.
[22]Sato T.Confining mechanism and analytical model in circular concrete-filled steel tube under axial force[J].Journal of Structure ConstructionEngineering,1993,452:149-158.
[23]Takeda T,Sozen MA,Nielsen NN.Reinforced concrete response to simulated earthquakes[J].Journal of The Structural Division,ASCE,1970,96:2557-2573.
[24]Ren W X,Obata M.Elastic-plastic seismic behavior of long span cable-stayed bridges[J].Journal of Bridge Engineering,ASCE,1999,4(3):194-203.
[2]日本鋼構造協会.合成.複合構造の活用による鋼橋の高性能化[M].日本,2002.
[3]刘玉擎,陈宝春,彦坂熙.中国における钢管コンクリ?ト合成ア?チ橋および水平旋回架设工法の発展[J].桥梁と基础(日),1999,2:41-44.
[4]吴庆雄,陈宝春,高桥和雄,等.中国におけるコンクリ?ト充填鋼管ア?チ橋の建設の状況と技術の課題[J].橋梁と基礎(日),2001,10:40-46.
[5]陈宝春.钢管混凝土拱桥设计与施工[M].2版,北京:人民交通出版社,2007.
[6]陈宝春.钢管混凝土拱桥抗震理论研究[R].国家基金结题报告,2003.
[7]徐艳,胡世德.钢管混凝土拱桥弹性动力稳定性能研究[J].地震工程与工程振动,2006,26(4):162-167.
[8]陈宝春.钢管混凝土拱桥计算理论研究进展[J].土木工程学报,2003,36(12):47-57.
[9]李巧,熊峰.钢管混凝土拱桥三维弹塑性时程分析[J].哈尔滨建筑大学学报,2001(增刊):128-132.
[10]刘玉擎,郭彦林.钢管拱桥在大地震作用下的非线性反应分析[J].地震工程与工程振动,2003,23(1):44-49.
[11]孙潮,陈宝春,陈水盛.钢管-钢管混凝土复合拱桥动力特性分析[J].地震工程与工程振动,2001,21(2):48-52.
[12]胡世德,王君杰,魏红一,等.丫髻沙大桥主桥抗震性能研究[J].铁道标准设计,2001,6:21-25.
[13]赵灿晖,周志祥.多维地震激励作用下大跨度钢管混凝土提篮拱桥的随机响应[J].地震工程与工程振动,2005,25(3):87-92.
[14]刘玉擎,彦坂熙,陈宝春.コンクリ?ト充填鋼管を主構とする中路式ア?チ橋の静力学的および非線形地震?答特性[J].鋼構造論文集,1999,6:53-61.
[15]刘玉擎,彦坂煕,陈宝春.架構式合成タイドア?チ橋の構造特性および耐震性能[J].構造工学論文集,2001,47A:1475-1484.
[16]刘玉擎,彦坂煕.コンクリ?ト充填鋼管を用いたブレ?ストリブア?チ橋の終局?度と耐震性能の評価法[J].土木学会論文集,2002,703/I-59:313-325.
[17]吴庆雄,高橋和雄,松坂博幸,等.コンクリ?ト部分充填鋼管ア?チ橋の動特性に関する研究[J].鋼構造年次論文報告集,2002,10:141-148.
[18]日本道路協会.道路橋示方恕ね庹h[S].V耐震設計編,1996.
[19]Earthquake Engineering Committee of Japan Society of Civil Engineers.Earthquake resistant design codes in Japan[S].Japan Society of Civil En-gineering,Japan,2000.
[20]范立础,胡世德,叶爱君.大跨度桥梁抗震设计[M].北京:人民交通出版社,2001.
[21]?ア?ク情報システム.TDAPⅢ機能説明?.2003.
[22]Sato T.Confining mechanism and analytical model in circular concrete-filled steel tube under axial force[J].Journal of Structure ConstructionEngineering,1993,452:149-158.
[23]Takeda T,Sozen MA,Nielsen NN.Reinforced concrete response to simulated earthquakes[J].Journal of The Structural Division,ASCE,1970,96:2557-2573.
[24]Ren W X,Obata M.Elastic-plastic seismic behavior of long span cable-stayed bridges[J].Journal of Bridge Engineering,ASCE,1999,4(3):194-203.
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