【作者】 于长亮； 于旭光； 韩斌；

【Author】 YU Chang-liang,YU Xu-guang,HAN Bin(School of Civil Engineering,Chang’an University,Xi’an,Shaanxi 710061,China)

【机构】 长安大学建筑工程学院；

【摘要】 钢板深梁作为一种新型的耗能构件内填于钢框架,可以实现宽范围的刚度渐变调幅。运用ANSYS研究了无加劲肋、十字加劲肋、两侧加劲肋、交叉加劲肋和全加劲肋钢板深梁填充钢框架的滞回性能,得到了钢板深梁填充钢框架的滞回曲线、延性系数、耗能系数和应力云图。研究结果表明:十字加劲肋和交叉加劲肋对构件的屈服荷载和屈服荷载影响较大,而对极限荷载影响很小,两侧加劲肋和全加劲肋对三者都影响较大;加劲肋显著提高了构件的延性,但其形式对构件延性影响很小;加劲肋显著增强了构件耗能能力,全加劲肋的耗能能力最好;加劲肋使钢板深梁避免发生整体失稳,加劲肋形式不同构件破坏形态差异较大。更多还原

【Abstract】 As an innovative lateral energy-dissipation component,steel deep beam used in structural frames can achieve a wide range of stiffness adjustment.ANSYS was adopted to analyze the hysteretic behavior of the structure.The research work was focused on the influences of the types of stiffeners and provided data on hysteresis characteristics,ductility,energy absorption and stress distribution.The result shows that the cross-stiffened deep beam and diagonal-stiffened deep beam have much influence on the yielding load and initial stiffness of the structure and have negligible influence on ultimate load.But all of these mechanical indexes of the structure are increased significantly by both sides-stiffened deep beam and mixed-stiffened deep beam.Though the ductility of the structure is increased observably,the types of stiffeners have negligible effect on the ductility of the structure.The energy dissipation capacity of the structure is improved markedly by the stiffened deep beam,especially the mixed-stiffened deep beam.The stiffeners make the deep beam avoid global instability and the failure patterns of the structures of different type of stiffeners are different significantly.更多还原