柱-板式新型高墩非线性抗震性能研究
|
摘要
为提高铁路高墩桥梁的抗震性能,设计了一种新型空心高墩。新型高墩主要由柱与板组成,柱为主体结构,地震中柱始终不坏,板在强震中可以发生损坏。采用二元件模型模拟板,建立其非线性分析模型,采用MIDAS软件对使用柱-板式新型高墩的多跨混凝土连续刚构桥进行了非线性地震反应分析。结果表明,新型高墩在强烈地震作用下通过薄壁板的损伤延长结构周期、耗散地震能量、减小墩柱所受地震作用,能保护桥墩的主体结构。
To improve the seismic performance of the railway bridge with tall piers,a new type of hollow tall pier was proposed.The new tall pier is mainly composed by columns and plates.The columns are the main structure,which always keep elastic under earthquake,while the plates can be damaged in large earthquake.The nonlinear model of the pier was established with two spring model simulating the plate.Nonlinear seismic response analysis of a multi-span concrete continuous rigid frame bridge with the column-plate tall pier was performed by using MIDAS software.The results show that the damage of plates can extend the period of pier,dissipate seismic energy,reduce the seismic action on the pier column,and protect the main structure of the pier under the high intense earthquake.
To improve the seismic performance of the railway bridge with tall piers,a new type of hollow tall pier was proposed.The new tall pier is mainly composed by columns and plates.The columns are the main structure,which always keep elastic under earthquake,while the plates can be damaged in large earthquake.The nonlinear model of the pier was established with two spring model simulating the plate.Nonlinear seismic response analysis of a multi-span concrete continuous rigid frame bridge with the column-plate tall pier was performed by using MIDAS software.The results show that the damage of plates can extend the period of pier,dissipate seismic energy,reduce the seismic action on the pier column,and protect the main structure of the pier under the high intense earthquake.
引文
[1]王克海.桥梁抗震研究[M].北京:中国铁道出版社,2007.
[2]刘坤,陈兴冲,夏修身.铁路空心高墩的地震反应分析[J].兰州交通大学学报:自然科学版,2005,24(4):20-23.
[3]李茜,王克海,韦韩.高墩梁桥地震反应分析[J].地震工程与工程振动,2006,26(3):74-76.
[4]夏修身,陈兴冲,王常峰,等.高墩大跨连续刚构桥抗震性能研究[J].西北地震学报,2010,32(1):88-91.
[5]夏修身,陈兴冲,王常峰.铁路高墩弹塑性地震反应分析[J].世界地震工程,2008,24(2):117-121.
[6]夏修身,陈兴冲.铁路高墩桥梁基底摇摆隔震与墩顶减震对比研究[J].铁道学报,2011,33(9):102-107.
[7]HINES E M,SEIBLE F,PRIESTLEY M J N.Seismicperformance of hollow rectangular reinforced concretepiers with highly-confined boundary elements[R].PhaseⅠ:flexural tests,PhaseⅡ:shear tests.California:University of California at San Diego,2002.
[8]HINES E M,DAITO A,SEIBLE F.Seismic performance of hollow rectangular reinforced concrete piers with highly-confined boundary elements[R].PhaseⅢ:web crushing tests.California:University of California at San Diego,2002.
[9]蒋通,宋亚新,楼梦麟.高层框-剪结构空间协同弹塑性地震反应分析[J].地震工程与工程振动,1998,18(2):69-78.
[10]VULCANO A,BERTERO V V.Analytical model for predicating the lateral response of RC shear wall:evaluation of their reliability[R].California:University of California at Berkeley,1987.
[11]孙景江,江近仁.框架-剪力墙结构的非线性随机地震反应和可靠度分析[J].地震工程与工程振动,1992,12(2):59-68.
[12]崔大光,李国强,李一松.SRC框支剪力墙结构地震反应简化分析模型研究[J].地震工程与工程振动,2008,28(6):154-162.
[2]刘坤,陈兴冲,夏修身.铁路空心高墩的地震反应分析[J].兰州交通大学学报:自然科学版,2005,24(4):20-23.
[3]李茜,王克海,韦韩.高墩梁桥地震反应分析[J].地震工程与工程振动,2006,26(3):74-76.
[4]夏修身,陈兴冲,王常峰,等.高墩大跨连续刚构桥抗震性能研究[J].西北地震学报,2010,32(1):88-91.
[5]夏修身,陈兴冲,王常峰.铁路高墩弹塑性地震反应分析[J].世界地震工程,2008,24(2):117-121.
[6]夏修身,陈兴冲.铁路高墩桥梁基底摇摆隔震与墩顶减震对比研究[J].铁道学报,2011,33(9):102-107.
[7]HINES E M,SEIBLE F,PRIESTLEY M J N.Seismicperformance of hollow rectangular reinforced concretepiers with highly-confined boundary elements[R].PhaseⅠ:flexural tests,PhaseⅡ:shear tests.California:University of California at San Diego,2002.
[8]HINES E M,DAITO A,SEIBLE F.Seismic performance of hollow rectangular reinforced concrete piers with highly-confined boundary elements[R].PhaseⅢ:web crushing tests.California:University of California at San Diego,2002.
[9]蒋通,宋亚新,楼梦麟.高层框-剪结构空间协同弹塑性地震反应分析[J].地震工程与工程振动,1998,18(2):69-78.
[10]VULCANO A,BERTERO V V.Analytical model for predicating the lateral response of RC shear wall:evaluation of their reliability[R].California:University of California at Berkeley,1987.
[11]孙景江,江近仁.框架-剪力墙结构的非线性随机地震反应和可靠度分析[J].地震工程与工程振动,1992,12(2):59-68.
[12]崔大光,李国强,李一松.SRC框支剪力墙结构地震反应简化分析模型研究[J].地震工程与工程振动,2008,28(6):154-162.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心