（浙江大学土木系  杭州  310027）
【提要】  推导了在水平荷载作用下共同工作的两个弯剪型抗侧力结构的基本微分方程组及其解析解。与传统框架剪力墙结构可以一次求解不同，两个弯剪型结构共同作用的分析必须分两步求解。算例分析表明，一个结构的抗弯刚度参与另一个结构共同工作的能力受到自身抗剪刚度的影响，一个结构的抗剪刚度参与另一个结构共同作用的能力也受到自身抗弯刚度的影响。
【关键词】  双重抗侧力体系  框架  剪力墙  弯剪型
Interaction Between Two Shearflexural Structures Under Horizontal Load/Gao Yu，Tong Genshu （Department of Civil Engineering，Zhejiang University，Hangzhou 310027，China）
Abstract:The equations and its analytic solution are discussed，considering the interaction between two shearflexural structures under horizontal load. Different from the simplified model for framewall system，the equations need two steps to solve. The examples show that the efficiency of the flexural rigidity in one structure to participate in resisting load together with the other structure in a dual system is affected by its shear tiffness.Meanwhile，the efficiency of the shear stiffness in one structure to participate in resisting load is affected by its flexural rigidity.
Keywords:dual system；frame；shear wall；shearflexural type