The relatively large number of structural elements and the variety of design code requirements complicate the design process of tall buildings. This process is exacerbated when the target is to obtain the seismic code‐compliant optimal design with minimum weight. The present paper aims at providing a practical methodology for the optimal design of steel tall building structures considering the constraints imposed by typical building codes. The applicability of the proposed approach is demonstrated through the determination of the optimal seismic design for 20‐, 40‐, and 60‐story buildings with a framed tube as well as a tube‐in‐tube system. Such a design gives rise to a basis for the fair comparison of the behavior of the framed tube with that of the tube‐in‐tube system under applied loads. The optimal weight of the buildings with the tube‐in‐tube system turns out to be slightly less than that of the buildings with the conventional framed‐tube system.

中文翻译：

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钢框架管和筒内高层建筑的最佳抗震设计

相对大量的结构元素和各种设计规范要求使高层建筑的设计过程复杂化。当目标是要以最小的重量获得符合地震规范的最佳设计时，此过程会更加恶化。本文旨在为考虑典型建筑规范施加的约束的钢结构高层建筑结构的优化设计提供一种实用的方法。通过为带有框架管和管中管系统的20层，40层和60层建筑物的最佳抗震设计的确定，证明了该方法的适用性。这种设计为合理比较框架框架管与管内系统在施加载荷下的性能奠定了基础。