论文部分内容阅读
对高度方向性能恒定,不对称的建筑结构,提出了近似的抗震分析手算方法。通过剪力墙和薄壁开口截面结构的结合,增加了建筑物的刚度。基于连续技术和达朗伯原理,推导了自由振动的控制方程和相应的特征值问题。应用伽辽金技术,提出了一个通用的方法对剪力墙和薄壁开口截面结构的耦合振动进行自由振动分析。给出了地震荷载下计算建筑结构循环频率和内力的简化公式。实例验证了方法的适用性和精确性,所提出的方法与有限元计算进行了比较。
Aiming at the constant and asymmetrical building structure in the height direction, an approximate seismic calculation method is proposed. The combination of shear wall and thin-walled open section structure increases the stiffness of the building. Based on the continuous technique and the Darumbel principle, the governing equations of free vibration and the corresponding eigenvalue problems are deduced. By using Galerkin technique, a general method is proposed to analyze the free vibration of coupled vibration of shear wall and thin-walled open cross-section structures. A simplified formula for calculating the cyclic frequency and internal force of a building structure under earthquake load is given. The example verifies the applicability and accuracy of the method. The proposed method is compared with the finite element method.