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根据多遇和罕遇地震作用水平地震影响系数间的相互关系，导出了正常配筋情况下楼层屈服强度系数的近似计算公式，得出了同时满足多、罕遇地震作用下抗震变形要求的层间弹性位移角限值，将罕遇地震作用下的薄弱层抗震变形验算归并到多遇地震作用下的抗震变形验算中，避免了截面配筋后可能因罕遇地震作用下弹塑性变形验算不满足要求而重新进行截面设计的麻烦，并提供了一种合理选择截面尺寸的方法，简化了钢筋混凝土框架结构设计。
Based on the interrelationship between the seismic influence factors of horizontal and rare earthquakes, the approximate calculation formula of the floor yield strength coefficient under normal reinforcement conditions is derived, and the layer that satisfies the seismic deformation requirements under multiple and rarely encountered earthquakes is obtained at the same time. The value of the inter-elastic displacement angle limit integrates the seismic-deformation checking of the weak layer under rare earthquake action into the seismic deformation checking under multi-quake action, avoiding the possibility of checking the elastic-plastic deformation due to rare earthquakes after the reinforcement of the section. Satisfy the requirements and re-design the cross-section design, and provide a reasonable choice of cross-sectional dimensions, simplifying the design of reinforced concrete frame structures.