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采用连续化方法导出了短肢剪力墙结构在任意高度侧向集中荷载的作用下的侧移曲线方程,由此得到该结构的抗侧移柔度系数,进而得出结构的抗侧移刚度矩阵。应用抗侧移刚度矩阵对各种整体性系数和肢强系数的短肢剪力墙结构进行了动力特性分析,研究其对结构动力特性的影响。结果表明,当肢强系数不变时,随整体性系数的增加,短肢剪力墙的前两阶振型的振动周期显著减小,而其他高阶振型的振动周期变化很小;当整体性系数不变时,短肢剪力墙的前两阶振型的振动周期随肢强系数的增加显著减小,而其他高阶振型的振动周期变化不大。
The lateral displacement curve equation of the short-limb shear wall structure under lateral concentrated load at any height is deduced by using the continuous method. The lateral deflection flexibility coefficient of the structure is obtained, and the lateral resistance stiffness matrix. The anti-sliding stiffness matrix is used to analyze the dynamic characteristics of short-leg shear wall structures with various coefficients of integrity and strength coefficients, and to study their influences on the dynamic characteristics of structures. The results show that the vibration period of the first two modes of the short-limb shear walls decreases significantly with the increase of the global coefficient when the limbs' strong coefficients are constant, while the vibration periods of the other high-order modes are small. When the integrality When the coefficient is constant, the vibration period of the first two modes of the short-leg shear wall decreases significantly with the increase of the limb strength coefficient, while the vibration periods of the other high-order modes change little.