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根据多肢抗震墙在水平荷载作用下的破坏特点,连梁中弯矩和剪力相对较大,以及强度设计中配筋往往出现超筋的情况,并假定在水平荷载作用下墙肢处于弹性阶段,而连梁达到极限状态,导出了多肢墙的内力和位移计算公式,可用之计算任意楼层节点荷载、变厚度地的内力和位移。对抗震墙进行强度和刚度设计,发现更符合抗震墙破坏时的实际工作状态。
According to the damage characteristics of multi-shaft seismic walls under horizontal loads, the bending moment and shear force in the coupling beam are relatively large, and the reinforcement tends to appear in the strength design, and it is assumed that the wall limbs are in the elastic stage under the action of horizontal loads. The coupling beams reach the limit state and derive the formulas for calculating the internal forces and displacements of the multi-legged wall, which can be used to calculate the internal forces and displacements of the loads and thicknesses of the nodes on any floor. The strength and stiffness design of the anti-seismic wall was found to be more in line with the actual working conditions when the seismic wall was destroyed.