CAJ | 학술논문

为了研究预制装配式部分钢骨混凝土框架梁柱节点的力学性能,以满足工程设计中的抗震要求,采用非线性有限元软件 ABAQUS建立实体模型对其进行数值分析,并从破坏形态、滞回曲线、骨架曲线、延性系数及耗能能力、强度退化和刚度退化等多方面与试验结果进行比较.结果表明,采用规范的损伤塑性模型与所采用的参数能较好地模拟混凝土的力学性能；有限元模拟的塑性变形主要发生在梁与加载垫板接触部分和梁的钢骨连接部分,与试验结果非常一致；有限元与试验的延性系数分别为3.60、3.15,等效黏滞阻尼系数分别为0.25、0.29,且模拟的结果与试验结果非常接近,说明所采用的有限元模拟方法是可行的.
위료연구예제장배식부분강골혼응토광가량주절점적역학성능,이만족공정설계중적항진요구,채용비선성유한원연건 ABAQUS건립실체모형대기진행수치분석,병종파배형태、체회곡선、골가곡선、연성계수급모능능력、강도퇴화화강도퇴화등다방면여시험결과진행비교.결과표명,채용규범적손상소성모형여소채용적삼수능교호지모의혼응토적역학성능；유한원모의적소성변형주요발생재량여가재점판접촉부분화량적강골련접부분,여시험결과비상일치；유한원여시험적연성계수분별위3.60、3.15,등효점체조니계수분별위0.25、0.29,차모의적결과여시험결과비상접근,설명소채용적유한원모의방법시가행적.
A physical model to study the mechanical properties of prefabricated parts of SRC frame beam-column joints is set up in ABAQUS to assess its seismic performance,and the simulation results,such as the failure pattern,hysteresis curves,skeleton curves,ductility factor and energy dissipation capacity,strength degradation and stiffness degradation are compared with experimental results.The results show that the standard damage plasticity model and the parameters here for finite element analysis can simulate the mechanical properties of concrete well.Plastic deformation obtained by finite element simulation occurs mainly in the beam and loading steel plate contact position and the connecting portion of the beam,and it is very consistent with the experimental results.The finite element and experimental ductility factors are 3.60,3.15,the equivalent viscous damping coefficients are 0.25,0.29,respectively.The simulation and experimental results are very close,indicating that the finite element simulation method used is feasible.