| 西小坪预应力连续箱梁桥抗震分析 |
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| 引用本文： | 苗林,陈兴冲,夏修身,王常峰.西小坪预应力连续箱梁桥抗震分析[J].兰州铁道学院学报,2007,26(1):52-55. |
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| 作者姓名： | 苗林 陈兴冲 夏修身 王常峰 |
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| 作者单位： | 兰州交通大学土木工程学院 甘肃兰州730070 |
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| 摘 要： | 石太客运专线的西小坪大桥主桥(DK107 921.80)采用预应力混凝土连续箱梁方案,桥跨布置为48 m 80 m 40 m,位于七度地震区,需要进行抗震设计.依据三水准抗震设计目标,对该桥进行了小震下的弹性验算及罕遇地震下的弹塑性抗震验算,分析结果表明该桥能够满足“小震不坏,大震不倒”的设防目标.
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| 关 键 词： | 连续梁桥 弹塑性 抗震分析 |
| 文章编号： | 1001-4373(2007)01-0052-04 |
| 修稿时间： | 2006-10-09 |
Seismic Analysis of Xixiaoping Pre-stress Concrete Continuous Box Girder Bridge |
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| Miao Lin,Chen Xingchong,Xia Xiushen,Wang Changfeng.Seismic Analysis of Xixiaoping Pre-stress Concrete Continuous Box Girder Bridge[J].Journal of Lanzhou Railway University,2007,26(1):52-55. |
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| Authors: | Miao Lin Chen Xingchong Xia Xiushen Wang Changfeng |
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| Institution: | School of Civil Engineering, Lanzhou Jiaotong University, Lanzhou 730070 ,China |
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| Abstract: | The project of Xixiaoping Bridge(DK107 921.80) was chosen as pre-stress concrete continuous box girder bridge,whose span is 48 m 80 m 48 m.As the bridge located in the seismic area of 7 degree,the seismic design should be made.In this paper,an elasto-plastic seismic checking was performed according to the goal of three-level seismic design.The result shows that the bridge can meet the goal of "no damage in low-level earthquake;no collapsing in high-level earthquake". |
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| Keywords: | continuous bridge elasto-plastic seismic analysis |
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