Experimental and numerical evaluation of bearing capacity of steel plate girder affected by end panel corrosion
Experimental and numerical evaluation of bearing capacity of steel plate girder affected by end panel corrosion
复制标题
端板腐蚀影响钢板梁承载力试验及数值评估
DOI：
10.1007/s13296-014-3023-8
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发表时间：
2014
影响因子：
1.5
通讯作者：
H. Yamada
中科院分区：
文献类型：
--
作者：
Nauman Khurram;E. Sasaki;H. Katsuchi;H. Yamada
研究了板梁加劲肋及腹板均匀和非均匀局部腐蚀损伤对板梁承载力的影响。在试验程序中，采用了五个板梁端部支座加劲肋，模拟了不同均匀和非均匀腐蚀损伤类型。实验结果建模和验证有限元（FE）软件ABAQUS，考虑壳-固耦合单元配方。该研究进一步扩展到各种损伤情况，考虑不同的损伤高度和剩余厚度，分析了加筋损伤、加筋加腹板损伤等。研究得出的结论是，任何损坏高度内的最小厚度均可用于在有限元分析中模拟腐蚀损坏。最后，提出了板梁端部局部腐蚀损伤对板梁承载力影响的经验关系式。
The present study deals with the effect of uniform and non-uniform local corrosion damages at the bearing stiffener and nearby web on the bearing capacity of plate girder. Five plate girder ends simulated with different uniform and non-uniform types of corrosion damage, at the base of the bearing stiffener are used in the experimental program. The experimental results are modeled and verified on a Finite Element (FE) software ABAQUS, considering shell-solid coupling elements formulation. The study is further extended to various damage casesi.e., stiffener damage, stiffer plus web damagesetc.considering different damage heights and residual thicknesses. The study concludes that minimum thickness within any damage height may be used to simulate the corrosion damage in a FE analysis. At the end, some empirical relationships are also proposed to estimate the bearing strength of the plate girder affected by the local corrosion damage at plate girder end.