Analysis to Predict Long-Term Mechanical Performance of Steel Structures with Histories of Corrosion and Repair
Analysis to Predict Long-Term Mechanical Performance of Steel Structures with Histories of Corrosion and Repair
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DOI：
10.1061/(asce)0733-9445(2004)130:10(1578
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发表时间：
2004-10
期刊：
影响因子：
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通讯作者：
Y. Goto;N. Kawanishi
中科院分区：
文献类型：
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作者：
Y. Goto;N. Kawanishi
为了评估钢结构的长期力学性能，提出了一种考虑材料腐蚀损失和修复历史影响的结构分析方法。该方法的特点是将材料因腐蚀或修复引起的体积变化作为一种新的控制参数，与载荷、位移等常规参数相结合。利用该参数可以准确地预测材料的腐蚀损失和过去的修复对结构应力和变形的影响。利用所提出的方法，研究了不同的修复方法对修复后桥梁抗震性能的影响。
A structural analytical method is developed in order to evaluate the long-term mechanical performance of steel structures by taking into account the effects of the histories of corrosion loss of material and repair. This method is characterized by the point that the volume change in material due to corrosion or repair is adopted as a new controlling parameter along with the conventional parameters such as load and displacement. With this new parameter, the change of the stress and deformations of structures by the corrosion loss of material and past repair can be accurately predicted. By making use of the proposed method, we examine how the seismic behaviors of the repaired bridges are influenced by the difference of the repair methods.