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框剪结构中的连梁作为主要的抗震耗能构件,在风荷载和地震荷载的作用下,连梁的内力往往很大。在地震作用下,连梁可产生塑性变形,刚度退化,而连梁刚度的退化加大了剪力墙的负担。本文结合实际工程,介绍了连梁刚度退化后框剪结构的内力变化,提出了墙肢、连梁的截面选择和配筋包络设计。
As the main seismic energy dissipation member in the frame shear structure, the internal force of the coupled beam is often large under the action of wind load and earthquake load. Under the action of earthquake, the connecting beam can deform plastically and its stiffness degenerate, while the degradation of the rigidity of the connecting beam increases the load on the shear wall. Based on the actual project, this paper introduces the change of internal force of the frame-shear structure after the rigidity of the continuous beam is degraded. The section selection and reinforcement envelope design of the wall and the continuous beam are proposed.