The story shear distribution based on inelastic state of eccentrically braced frames with vertical link fabricated with high strength steel (Y-HSS-EBFs) are proposed in this paper, four groups of Y-HSS-EBF prototypes with different stories are established in SAP2000 software. Moreover, the effects of structural height, velocity pulse of near-fault ground motions and acceleration cumulative effect of far-fault ground motions are considered. Nonlinear dynamic analyses are conducted to research the seismic story shear distribution of the structures under severe earthquakes. The story shear force distribution in inelastic state of Y-HSS-EBF is proposed based on equivalent base shear method provided in current design code, and the non-linear dynamic results are compared to lateral force distribution and other story shear distributions. The results indicated that near-fault earthquakes with velocity pulse and far-fault earthquakes with acceleration cumulative present different effect on the seismic story shear distribution of structures, the story shear distribution of Y-HSS-EBFs proposed in this paper is very practical and it can be a reference for the performance-based seismic design method for Y-HSS-EBFs.

本文提出了基于非弹性状态的高强度钢（Y-HSS-EBFs）偏心支撑框架非弹性状态的楼层剪力分布，在SAP2000软件中建立了四组不同楼层的Y-HSS-EBF原型. 此外，还考虑了结构高度、近断层地震动的速度脉冲和远断层地震动的加速度累积效应的影响。进行非线性动力分析，研究强震作用下结构的地震层剪力分布。Y-HSS-EBF在非弹性状态下的楼层剪力分布是基于现行设计规范中提供的等效基础剪力法提出的，并将非线性动力结果与侧向力分布和其他楼层剪力分布进行比较。