铁道科学与工程学报2017，Vol.14Issue(1)：142-148,7.
酸雨腐蚀后圆钢管混凝土柱抗震性能研究
A study of seismic performance for circular concrete filled steel tubular column under acid rain attack
摘要
Abstract
In this paper, A finite element model for circular concrete filled steel tubular ( circular CFST) col-umns under acid rain corrosion was proposed by using the ABAQUS commercial software, the reduction of elastic modulus and yield strength for steel was considered in the constitutive relation model of steel and concrete. Through comparison of hysteresis curve by the present model with that by the test method, it was shown that they agreed well, implying a lot that the finite element model was practicable and effective. Based on the present finite element model, deterioration of seismic performance for circular CFST column was analyzed under different corro-sion rate (b=0%, 5%,10%,15%, 20%,25% and 30%) and axial compression ratio(n=0.2, 0.4 and 0.5), The results indicated that the carrying capacity of the skeleton curve reduced, stiffness degenerated, energy dissi-pation capacity reduced, when the corrosion rate increased.关键词
圆钢管混凝土柱/酸雨/抗震性能/锈蚀率/ABAQUSKey words
circular concrete filled steel tube/acid rain/seismic performance/corrosion rate/ABAQUS分类
建筑与水利引用本文复制引用
陈梦成,林博洋,黄宏..酸雨腐蚀后圆钢管混凝土柱抗震性能研究[J].铁道科学与工程学报,2017,14(1):142-148,7.基金项目
国家自然科学基金资助项目(51378206,51468017) （51378206,51468017）
江西省自然科学基金资助项目(20143ACB20008) （20143ACB20008）
