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本文就目前广泛采用的壁式框架分析法中刚域长度取值不合理的问题,进行了较为系统的分析研究。通过对三层和八层、开有各种大小孔洞的78种剪力墙的计算分析,论证了开洞剪力墙简化为壁式框架计算时,刚域削弱系数β与其洞口特征参数的密切关系。提出了可供工程计算应用的刚域削弱系数的计算公式和图表。
In this paper, a systematic analysis of the problem of the unreasonable value of the length of the rigid region in the widely used wall frame analysis method is carried out. Through calculation and analysis of 78 kinds of shear walls with three holes and eight layers and holes of various sizes, it is demonstrated that when the opening shear wall is reduced to a wall frame calculation, the stiffness coefficient of the rigid field is closely related to the characteristic parameters of the opening. relationship. The calculation formulas and charts for the just-field weakening coefficient available for engineering calculations are proposed.