基于室内试验的公路FRPM管涵洞有限元分析

发布时间：2018-03-13 01:24

本文选题：公路涵洞　切入点：FRPM管　出处：《玻璃钢/复合材料》2017年11期 　论文类型：期刊论文

【摘要】：为深入研究玻璃钢夹砂管涵洞的力学特性,基于室内试验结果和工程实际,借助ABAQUS建立有限元分析模型,选取室内试验中两种工况的试验结果与数值模拟进行对比分析。结果表明,有侧限环向应变模拟结果与实测值非常接近,验证了数值模拟的正确性,无侧限埋地玻璃钢夹砂管道与室内有侧限试验模型结果具有相同的受力变化形式,当管涵的竖向变形达到直径的5%时,管顶上端填土高度为50 cm、70 cm条件下对应的极限承载力分别为66 t和71 t,为玻璃钢夹砂管涵的公路推广应用提供了重要的理论基础。
[Abstract]:In order to deeply study the mechanical properties of the culvert of glass-steel sand filled pipe, based on the results of laboratory test and engineering practice, the finite element analysis model was established by means of ABAQUS. The experimental results of two conditions are compared with the numerical simulation. The results show that the results of circumferential strain simulation with side limits are very close to the measured values, and the correctness of the numerical simulation is verified. The results of the unconfined glass-filled steel sand pipe have the same force variation form as the model results of indoor lateral limit test. When the vertical deformation of the culvert reaches 5% of the diameter of the pipe culvert, the vertical deformation of the pipe culvert reaches 5% of the diameter. The ultimate bearing capacity at the top of the pipe is 66 t and 71 t respectively when the top filling height is 50 cm / 70 cm, which provides an important theoretical basis for the highway popularization and application of the glass steel sand filled pipe culvert.
【作者单位】：河北工业大学土木与交通学院;北京易华录信息技术股份有限公司;
【基金】：河北省交通运输厅科技计划项目(Y-201628)
【分类号】：U449.83

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