[1]吴全友,刘兵.深水区高墩大跨预应力混凝土连续刚构桥弹性地震响应研究[J].西安科技大学学报,2012,(02):221-227.
 WU Quan-you,LIU Bing.Seismic response of prestressing concrete rigid frame bridges with high piers and long span in deep water[J].Journal of Xi'an University of Science and Technology,2012,(02):221-227.
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深水区高墩大跨预应力混凝土连续刚构桥弹性地震响应研究(/HTML)
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西安科技大学学报[ISSN:1672-9315/CN:61-1434/N]

卷:
期数:
2012年02期
页码:
221-227
栏目:
出版日期:
2012-04-29

文章信息/Info

Title:
Seismic response of prestressing concrete rigid frame bridges with high piers and long span in deep water
文章编号:
1672-9315(2012)02-0221-07
作者:
吴全友1刘兵2
1.杭州湾大桥 管理局,浙江 杭州 315032; 2.江苏省交通规划设计院股份有限公司,江苏 南京 210005
Author(s):
WU Quan-you1LIU Bing2
1.Hangzhou Bay Bridge Management Bureau,Hangzhou 315032,China; 2.Limited Liability Company for Jiangsu Province Planning Designing Institute,Nanjing 210005,China
关键词:
水下工程 高墩大跨 连续刚构桥 动水作用 地震响应
Keywords:
underwater engineering high-piers and long span prestressing concrete rigid frame bridge influence of dynamic water seismic response
分类号:
U 44; TU 473.1
文献标志码:
A
摘要:
针对深水库区高墩大跨径预应力混凝土刚构桥的结构特点,考虑桩-土相互和动水之间的耦合作用,采用等代刚度法和大型通用有限元程序ANSYS,对某预应力混凝土刚构进行了线弹性地震响应分析,分别研究了横梁设置位置对下部结构和上部结构顺桥向和横桥向的地震响应特点。研究结果表明:随水深与墩高比h/H的加大,顺桥向地震波作用下,主梁根部及各跨跨中竖向弯矩增幅较大,其余变化较小; 横桥向地震波作用下,边墩墩顶以及中墩墩顶和墩底横向弯矩增幅较大,其余变化较小。
Abstract:
According to the feature of prestressing concrete rigid frame bridge with long span and high piers located in deep water, the coupled action for pile and soil and dynamic water was considered, on the basis of the equivalent rigidity method and the FEM propram, the seismic response of prestressing concrete rigid frame bridge with long span and high piers the bridge model was analyzed, the seismic response feature on setting location of beam for lower and topper structure along and cross bridge was studied. The studied results indicate: with increment of depth of water and height of pier, the vertical moment for the root and mid span of main beam has a large amplify under action of seismic response along bridge, and the moment in the other part become little obvious,with increment of depth of water and height of pier, the cross moment for the pier top and per bottom of main beam has a large amplify under action of seismic response along bridge, and the moment in the other part become little obvious.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2011-03-10
基金项目: 国家自然科学基金项目(50908017)
通讯作者: 吴全友(1970-),男,黑龙江鸡西人,高级工程师,主要从事基础工程的研究工作.
更新日期/Last Update: 1900-01-01