CAJ | 학술논문

高含钢率钢骨混凝土（SRC）构件具有良好的承载能力和延性，在高层和复杂结构中多有应用，为了更为准确、全面地把握钢骨混凝土柱的受力性能，对其进行有限元数值模拟是一种行之有效的方法。但是采用传统的材料本构模型进行数值模拟，往往会忽略 SRC 构件中混凝土受到约束作用而产生的强度和延性的提高，忽略混凝土在反复荷载条件下的损伤以及钢材在反复荷载作用下的循环硬化，因此有限元结果与试验结果会存在较大差异。为此，将以上因素考虑在内，提出了适用于反复荷载条件下的钢骨混凝土材料本构，通过 ABAQUS 数值模拟与试验对比，验证了有限元模拟高含钢率钢骨混凝土柱滞回性能的准确性，并从材料层次分析探讨了混凝土在约束、损伤的性能变化和钢材在反复荷载条件下力学性能的变化对数值模拟结果的影响。
고함강솔강골혼응토（SRC）구건구유량호적승재능력화연성，재고층화복잡결구중다유응용，위료경위준학、전면지파악강골혼응토주적수력성능，대기진행유한원수치모의시일충행지유효적방법。단시채용전통적재료본구모형진행수치모의，왕왕회홀략 SRC 구건중혼응토수도약속작용이산생적강도화연성적제고，홀략혼응토재반복하재조건하적손상이급강재재반복하재작용하적순배경화，인차유한원결과여시험결과회존재교대차이。위차，장이상인소고필재내，제출료괄용우반복하재조건하적강골혼응토재료본구，통과 ABAQUS 수치모의여시험대비，험증료유한원모의고함강솔강골혼응토주체회성능적준학성，병종재료층차분석탐토료혼응토재약속、손상적성능변화화강재재반복하재조건하역학성능적변화대수치모의결과적영향。
SRC members with high steel ratio possess high load-carrying capacities and significant ductility, which is fully used in high-rise buildings and complex buildings.Finite element analysis is an effective method for investigating the performance of composite columns,but the results of numerical simulation do not agree with test results well,if the confinement of concrete,the damage of concrete and the cyclic hardening of steel under cyclic loading are neglected.Considering the influence of the changes of material,this paper proposed an analysis model for numerical simulation of composite columns by ABAQUS,and the accuracy was verified by contrast between the result of numerical simulation and test.The influence of material changes on numerical analysis of composite columns under cyclic loading were also discussed.