圆环塔斜拉桥抗震性能分析
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摘要
桥梁的抗震设计已成为桥梁设计工作中必不可少的工作,进行抗震分析时应选取合适的时程波,正确的模拟边界条件。在E1地震荷载作用下,运用反应谱法进行分析,结构各部分应处于弹性状态。E2地震荷载作用下,结构一般处于塑性状态,采用非线性时程分析方法。通过分析结构的受力状态、塑性铰形态、残余变形的大小等几方面,判断圆环塔斜拉桥在6度地震区具有足够的抗震安全性。
The seismic design of bridge has become the requisite work in the bridge design.It must be to select the suitable time-historical wave and the correct simulating boundary condition for the seismic analysis.Under the action of E1 seismic loading,the structures should be in elastic state and be analyzed by the response spectrum method,and under the action of E2 seismic loading,the structures are generally in the plastic state and are analyzed by the nonlinear time-historical method.The analysis of structural stress state,plastic hinge morphology and residual deformation can judges that the cirque-pylon cable-stayed bridge has the sufficient seismic security in the 6-degree earthquake zone.
The seismic design of bridge has become the requisite work in the bridge design.It must be to select the suitable time-historical wave and the correct simulating boundary condition for the seismic analysis.Under the action of E1 seismic loading,the structures should be in elastic state and be analyzed by the response spectrum method,and under the action of E2 seismic loading,the structures are generally in the plastic state and are analyzed by the nonlinear time-historical method.The analysis of structural stress state,plastic hinge morphology and residual deformation can judges that the cirque-pylon cable-stayed bridge has the sufficient seismic security in the 6-degree earthquake zone.
引文
[1]JTG D63-2007,公路桥涵地基与基础设计规范[S].北京:人民交通出版社,2007.
[2]JTG D62-2004,公路钢筋混凝土及预应力混凝土桥涵设计规范[S].北京:人民交通出版社,2004.
[3]GB50011-2010,建筑抗震设计规范[S].北京:中国建筑工业出版社,2010.
[4]CJJ166-2011,城市桥梁抗震设计规范[S].北京:中国建筑工业出版社,2011.
[5]JTG/T B02-2008,公路桥梁抗震设计细则[S].北京:人民交通出版社,2008.
[6]谢旭.桥梁结构地震响应分析与抗震设计[M].北京:人民交通出版社,2006.
[7]王宏谋,李海霞.桥梁盆式支橡胶支座中橡胶的非线性有限元分析[J].超重运输机械,2010(2):25.
[8]CECS160:2004,建筑工程抗震性态设计通则[S].北京:中国计划出版社,2004.
[2]JTG D62-2004,公路钢筋混凝土及预应力混凝土桥涵设计规范[S].北京:人民交通出版社,2004.
[3]GB50011-2010,建筑抗震设计规范[S].北京:中国建筑工业出版社,2010.
[4]CJJ166-2011,城市桥梁抗震设计规范[S].北京:中国建筑工业出版社,2011.
[5]JTG/T B02-2008,公路桥梁抗震设计细则[S].北京:人民交通出版社,2008.
[6]谢旭.桥梁结构地震响应分析与抗震设计[M].北京:人民交通出版社,2006.
[7]王宏谋,李海霞.桥梁盆式支橡胶支座中橡胶的非线性有限元分析[J].超重运输机械,2010(2):25.
[8]CECS160:2004,建筑工程抗震性态设计通则[S].北京:中国计划出版社,2004.
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