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摒弃常用的两墙肢在同一标高处转角和曲率相等,连梁的反弯点在梁的跨中,忽略连梁的轴向变形的假设。采用剪力墙常用的连续化的分析方法。用力法求解,以连梁切口处剪力r(x)、轴力a(x),弯距M(x)为基本未知量,导得三个未知量耦合的常微分方程组,用常微分方程求解器求得在连续化条件下的精确解。从刚度相差较大的不等肢双肢墙的算例看出:对墙肢、连梁的内力,提出的分析方法较简化解均有较大差别。
Abandon the commonly used two wall limbs at the same elevation where the rotation angle and curvature are equal. The anti-bending point of the coupling beam is in the midspan of the beam, ignoring the assumption of the axial deformation of the coupling beam. Use the continuous analysis method commonly used for shear walls. By force method, the shear force r(x), axial force a(x), and bending moment M(x) at the joint beam cutout are taken as the basic unknown quantity, and three sets of unknown coupled ordinary differential equations are derived. The equation solver finds the exact solution under continuous conditions. From the example of the incomparable limb wall with large difference in stiffness, it can be seen that the proposed analysis method for the internal force of the wall limb and the coupling beam is quite different from the simplified solution.