CAJ | 학술논문

所研究的曲线形钢框架结构，多处采用曲线设计，外形优美，结构受力复杂。若采用传统设计软件的线单元进行模拟，很难全面反映出结构的应力、应变情况，因此通过有限元软件ABAQUS ，对结构模型进行三维实体有限元模拟，并考虑几何缺陷和材料非线性，对框架进行非线性屈曲分析，得到框架结构的极限承载力、塑性发展及变形情况；最后研究曲线形钢框架在低周往复荷载作用下的延性系数、滞回性能和耗能能力。研究表明：此框架不仅满足结构的弹性设计要求，而且在极限荷载和循环荷载作用下，表现出良好的塑性变形能力、滞回性能和耗能能力。
소연구적곡선형강광가결구，다처채용곡선설계，외형우미，결구수력복잡。약채용전통설계연건적선단원진행모의，흔난전면반영출결구적응력、응변정황，인차통과유한원연건ABAQUS ，대결구모형진행삼유실체유한원모의，병고필궤하결함화재료비선성，대광가진행비선성굴곡분석，득도광가결구적겁한승재력、소성발전급변형정황；최후연구곡선형강광가재저주왕복하재작용하적연성계수、체회성능화모능능력。연구표명：차광가불부만족결구적탄성설계요구，이차재겁한하재화순배하재작용하，표현출량호적소성변형능력、체회성능화모능능력。
The curvilinear figure steel frame structure with graceful shape and complicated loading state that it adopted curve design was studied in this paper . The simulation which using line element of traditional design software is difficult to fully reflect the stress ‐ strain conditions of the structure .Therefore ,the finite element simulation of three ‐ dimensional solid model for the structural model was carried out by using finite element software ABAQUS .In order to obtain the ultimate bearing capacity ,plastic development and deformation of the structure ,geometrical nonlinear stability analysis was carried out considering geometric imperfections and material nonlinearity .Finally ,the ductility factor ,hysteretic behavior and energy dissipation capacity of curvilinear figure steel frame under low ‐cycle cyclic load were investigated .The results showed that this framework was not only designed to meet the requirements of elastic design ,but also exhibited good plastic deformation ,hysteretic behavior and energy dissipation capacity under the ultimate load and cyclic loading .