| 预应力混凝土连续梁桥静动力特性试验分析 |
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| 引用本文： | 湛发益,贺国京,陈爱军,易锦.预应力混凝土连续梁桥静动力特性试验分析[J].铁道科学与工程学报,2009,6(4). |
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| 作者姓名： | 湛发益 贺国京 陈爱军 易锦 |
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| 作者单位： | 中南林业科技大学,土木工程与力学学院,湖南,长沙,410004 |
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| 基金项目： | 湖南省教育厅科学研究项目(08C939); 中南林业科技大学青年科学研究基金重点项目(06008A) |
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| 摘 要： | 以1座实际预应力混凝土连续箱梁桥为背景,应用MIDAS CIVIL2006软件,采用空间有限元模型分析其最不利弯矩、应力、变位和自振频率,并与该桥静动载试验测试结果进行比较分析.研究结果表明:主要测点的应变与挠度实测值均小于理论计算值,相对残余应变与挠度在控制值以内,实测自振频率高于计算频率而实测冲击系数小于计算值.该成果可为此类桥梁长期跟踪监控提供依据,也为完善预应力混凝土连续箱梁桥设计积累资料.
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| 关 键 词： | 连续梁桥 静动力分析 试验 评定 |
Experiment and analysis of static and dynamic characteristics of prestressed concrete continuous girder bridge |
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| ZHAN Fa-yi
,
HE Guo-jing
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CHEN Ai-jun
,
YI Jin.Experiment and analysis of static and dynamic characteristics of prestressed concrete continuous girder bridge[J].Journal of Railway Science and Engineering,2009,6(4). |
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| Authors: | ZHAN Fa-yi HE Guo-jing CHEN Ai-jun YI Jin |
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| Institution: | ZHAN Fa-yi,HE Guo-jing,CHEN Ai-jun,YI Jin (College of Civil Engineering , Mechanics,Central South Sci-Tech University of Forestry,Changsha 410004,China) |
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| Abstract: | Based on a practical engineering,a prestressed concrete continuous box girder bridge was analyzed under the space finite element model with a software MIDAS CIVIL2006 on its maximum moment,stress,deflection and natural frequency.The calculation results were compared and analyzed with the measured values from the bridge's experiment under static and dynamic load.The results show that the measured values of strain and deflection of main measuring points are less than calculation results and relative residual-... |
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| Keywords: | continuous beam bridge static and dynamic analysis experiment evaluation |
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