大跨刚构桥桥墩抗震优化设计
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摘要
以省道101线呼图壁石门水电站库区大桥建设工程为研究对象,应用midas有限元分析软件,分别建立不同墩柱截面类型、不同的墩柱高度的抗震计算模型,并采用反应谱分析的方法,得出桥梁结构在地震作用下不同的自振特性和动力响应,对不同墩柱类型和墩柱高度的刚构桥各关键部位的内力进行分析比较。
Taking the construction project at Shimen Hydropower Station at Hutubi along No.101 Provincial Line as the research object,the paper adopts midas finite element analysis software,establishes the anti-seismic calculation models with various pier cross-sections and piers with various heights,applies the response spectrum analysis,concludes the various natural response features and dynamic responses of bridge structures under the earthquakes,and undertakes the analysis and comparison of the internal forces at key parts of rigid frame bridges with different pier types and pier heights.
Taking the construction project at Shimen Hydropower Station at Hutubi along No.101 Provincial Line as the research object,the paper adopts midas finite element analysis software,establishes the anti-seismic calculation models with various pier cross-sections and piers with various heights,applies the response spectrum analysis,concludes the various natural response features and dynamic responses of bridge structures under the earthquakes,and undertakes the analysis and comparison of the internal forces at key parts of rigid frame bridges with different pier types and pier heights.
引文
[1]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.
[2]王海蛟.浅析世界连续刚构桥的发展历程[J].黑龙江交通科技,2006(5):64-65.
[3]王常峰,陈兴冲,夏修身.高墩大跨连续刚构桥抗震设计参数优化[J].公路交通科技,2006,23(4):80-83.
[4]周勇军,贺栓海.连续刚构桥单双薄壁墩地震响应的对比分析[J].中外公路,2007,27(3):114-117.
[5]JTG D62-2001,公路钢筋混凝土及预应力混凝土桥涵设计规范[S].
[6]北京迈达斯技术有限公司.Midas2010使用手册[Z].
[2]王海蛟.浅析世界连续刚构桥的发展历程[J].黑龙江交通科技,2006(5):64-65.
[3]王常峰,陈兴冲,夏修身.高墩大跨连续刚构桥抗震设计参数优化[J].公路交通科技,2006,23(4):80-83.
[4]周勇军,贺栓海.连续刚构桥单双薄壁墩地震响应的对比分析[J].中外公路,2007,27(3):114-117.
[5]JTG D62-2001,公路钢筋混凝土及预应力混凝土桥涵设计规范[S].
[6]北京迈达斯技术有限公司.Midas2010使用手册[Z].
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