Nonseismically detailed reinforced concrete (RC) shear walls adjacent to transfer structure in tall buildings are found to have short shear spans and designed to hold considerable axial load. In a previous paper, a Modified Mohr's Axial Capacity Model was developed by the authors to estimate the axial collapse of these RC walls in seismic events, which is expressed as an axial load ratio devised based on classical Mohr's circle framework. It was noted that the previous model can be complicated and appears not suitable for direct adoption in engineering design check. Hence, in this paper, a new simplified seismic axial collapse capacity prediction model is formulated to improvise the previous model. This simplified model typifies the practical range of shear wall geometry, concrete strength, steel reinforcement stress and strain and reinforcement ratio. Simplified charts to estimate maximum shear stress are presented for quicker design check. The complex inelastic buckling stress calculation is simplified into graphs and design equations. A knife‐edge feasible solutions zone is defined, expressed as an inequality function of axial‐to‐shear capacity ratio and additional axial stress induced by lateral shear. Recommendations are made based on results obtained from Genetic Algorithm search and further justified by parametric studies.

中文翻译：

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高层建筑中邻近转换结构的中等压缩钢筋混凝土剪力墙的简化地震轴向倒塌能力预测模型

发现高层建筑中与传递结构相邻的非地震详细钢筋混凝土（RC）剪力墙的剪力跨度较短，并设计为可承受相当大的轴向载荷。在以前的论文中，作者开发了改进的莫尔轴力模型来估计这些RC墙在地震中的轴向坍塌，这表示为基于经典莫尔圆框架设计的轴向载荷比。有人指出，先前的模型可能很复杂，似乎不适合在工程设计检查中直接采用。因此，本文提出了一种新的简化的地震轴向倒塌能力预测模型，以完善以前的模型。这个简化的模型代表了剪力墙几何形状，混凝土强度，钢筋的应力，应变和配筋率。给出了估计最大剪切应力的简化图表，以便更快地进行设计检查。复杂的非弹性屈曲应力计算简化为图形和设计方程式。定义了一个刀口可行解区域，表示为轴向剪切能力比和横向剪切力引起的附加轴向应力的不等式函数。根据从遗传算法搜索中获得的结果提出建议，并通过参数研究进一步证明其合理性。用轴向剪力比和横向剪力引起的附加轴向应力的不等式表示。根据从遗传算法搜索中获得的结果提出建议，并通过参数研究进一步证明其合理性。用轴向剪力比和横向剪力引起的附加轴向应力的不等式表示。根据从遗传算法搜索中获得的结果提出建议，并通过参数研究进一步证明其合理性。