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中文摘要：
采用限元软件ABAQUS对11根受酸雨腐蚀的方钢管（再生）混凝土短柱试件的轴压试验进行模拟。分别采用了两种方法来考虑酸雨腐蚀对钢管混凝土的影响，方法一考虑了酸雨腐蚀对壁厚的影响；方法二考虑了酸雨对钢材屈服强度和弹性模量的影响。两种方法模拟轴压承载力与试验结果相比平均差异均在5％左右。其中方法一比试验值偏高，方法二模拟结果偏安全且方法二的荷载-变形关系曲线与试验结果更符合。
英文摘要：
Using the finite element sottware ABAQUS numerical simulated 11 specimens of recycled concrete filled steel square tube under acid rain corrosion.Two methods were used to consider the effect of acid rain on the concrete filled steel tubular.The method one only consider decrease the thickness of the steel.Method two consider degenerate the yield strength and elastic modulus of steel.Compared with the experimental results the average difference between the two methods is about 5%.Value of method one is higher than the experimental value, and the value of method two＇s results are safe and the load-deformation relationship curves are more accord with the test results.
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