基于Midas的简支梁桥结构性能评价

2011 International Conference on Electric Technology and Civil Engineering (ICETCE) Pub Date : 2011-04-22 DOI:10.1109/ICETCE.2011.5774242

H. Zhang, Jing Ma, Li Jiao

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引用次数: 0

摘要

对桥梁进行了静载和动载试验。对结构在静荷载作用下的挠度和动荷载作用下的结构频率进行了分析，并与有限元分析结果进行了比较。应变校准和挠度校准均符合桥梁工程师手册相关标准的要求。最大挠度满足《公路钢筋混凝土及预应力混凝土桥涵设计规范》的要求，表明该t梁桥具有较大的安全储备。但现场试验频率大于加载试验频率。这意味着桥梁的整体刚度较大，容易产生共振现象。

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The evaluation of structural performance of the simple-supported beam bridge base on the Midas

The static and dynamic load tests are carried out on the bridge. The calibration is obtained when the deflection with static load and structure frequency with dynamic load are analyzed and are compared with finite element analysis results. Both strain calibration and deflection calibration meet the requirements of the relevant standards of the bridge engineer manual. The maximum deflection meets requirements of the Code for Design of Highway Reinforced Concrete and Prestressed Concrete Bridges and Culverts, it indicates that the T-beam bridge has more safety reserve. But the frequency of the site testing is bigger than that of loading test. That means the whole stiffness of the bridge is bigger, and can easily generate the phenomenon of resonance.

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2011 International Conference on Electric Technology and Civil Engineering (ICETCE)

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