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曲线连续刚构桥的变形和受力特性分析

DOI: 10.3969/j.issn.1674-0696.2013.sup.1.33, PP. 864-868

Keywords: 连续刚构桥,弯梁,变形,内力,有限元分析,continuousrigidframebridge,bendingbeam,deformation,internalforces,finiteelementanalysis

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Abstract:

:?采用有限元软件MIDAS/Civil建立了相同跨度的预应力混凝土变截面单箱单室连续刚构直梁模型和弯梁模型,分析了在恒载、活载作用下和成桥运营阶段直梁桥和弯梁桥的变形、反力和内力特征;考虑建模方法对最终结果可能造成的差异,对弯梁模型还采用梁格法进行建模分析,并将所得结果作为重要参考以验证结果的准确性,得到弯梁桥和直梁桥在受力和变形上的差异,从而更准确的分析弯梁桥的受力。

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