济南黄河二桥引桥滑移原因分析评估

Analysis and Evaluation of Slippage Causes for Bridge Approach of Yellow River Bridge II in Jinan

随着经济和社会的发展,全国各地不少桥梁均出现梁体滑移的问题,因此对梁体滑移的原因分析与修复越来越重要。结合济南黄河二桥引桥滑移修复工程,采用有限元软件MIDAS模拟引桥梁体与支座的受力状况,讨论了板式橡胶支座参数和超重车偏载下桥梁空间受力性能,并通过对支座滑移稳定性分析,得出了造成梁体滑移的主要原因,为该桥梁体修复提供了重要的理论依据,同时也为其他梁体滑移桥梁的修复提供了一定的参考价值。

With the development of economy and society, the problems of beam slippage appear in many bridges all over the country. Therefore, it is more and more important to repair and analyze the causes of beam slippage. According to the bridge approach slippage repair project of Jinan Yellow River Bridge II, the finite element software MIDAS is used to simulate the stress state of the beam and bearing of bridge approach, and to discuss the parameters of laminated rubber bearing and the spatial stress performance of bridge under the unbalanced loading of extra heavy-loaded vehicle. According to the analysis on the slippage stability of bearing, the main causes of beam slippage is given to provide the important theoretical basis for the repair of this bridge beam, and also to provide a certain reference for the repair of the other beam slippages of the bridges.