| 部分斜拉桥体系参数对动力特性的影响分析 |
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| 引用本文： | 上官萍,蔡鹏程,卓卫东,房贞政.部分斜拉桥体系参数对动力特性的影响分析[J].福州大学学报(自然科学版),2007,35(6):888-892. |
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| 作者姓名： | 上官萍 蔡鹏程 卓卫东 房贞政 |
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| 作者单位： | 福州大学土木工程学院,福建,福州,350002 |
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| 基金项目： | 福建省自然科学基金资助项目(E0510010)，福建省教育厅科研资助项目(JB04039) |
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| 摘 要： | 建立三跨双塔部分斜拉桥基准有限元动力分析模型,分别改变支承条件、主梁高跨比、边主跨比以及主塔高度与刚度等主要体系参数,研究其对部分斜拉桥结构动力特性的影响规律.计算结果表明,结构体系参数的变化对部分斜拉桥动力特性的影响较复杂,因此部分斜拉桥工程结构设计时应注意合理确定结构体系参数,以满足抗震设计的要求.
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| 关 键 词： | 部分斜拉桥 动力特性 体系参数 |
| 文章编号： | 1000-2243(2007)06-0888-05 |
| 修稿时间： | 2006年12月30 |
Parameter influencing analysis on dynamic characteristic of extradosed PC bridge |
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| SHANGGUAN Ping,CAI Peng-cheng,ZHUO Wei-dong,FANG Zhen-zheng.Parameter influencing analysis on dynamic characteristic of extradosed PC bridge[J].Journal of Fuzhou University(Natural Science Edition),2007,35(6):888-892. |
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| Authors: | SHANGGUAN Ping CAI Peng-cheng ZHUO Wei-dong FANG Zhen-zheng |
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| Institution: | (College of Civil Engineering,Fuzhou University,Fuzhou,Fujian,350002,China) |
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| Abstract: | A finite element benchmark model of extradosed PC bridge with two towers is built in this paper to analyze its dynamic characteristic.Dynamic characteristic analysis is done by changing system's parameters from bearing condition,ratio of height to span of girder,ratio of side to median spans and height and rigid of towers.The influence degree of system's parameters to dynamic characteristic of extradosed PC bridge is studied.The calculated results show that the influence on dynamic characteristic would be obvious by changing structural parameters.Therefore it would be regarded to decide structural parameters when designing extradosed PC bridges,in order to fulfill the demand of aseismic design. |
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| Keywords: | extradosed PC bridge dynamic characteristics system parameters |
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