The outrigger system is an effective tall building system used at one or multiple locations of high‐rise buildings. It is designed to control and minimize lateral displacement and to increase bending stiffness of the buildings by changing the load transfer mechanism of the structural systems. This paper presents a framework for estimation of the optimum location of the outriggers with structural engineering design approach. Three different sample high‐rise buildings, 35‐story 140‐m, 40‐story 160‐m, and 45‐m 180‐m, were investigated. A time‐history analysis method was used to examine the effects of earthquakes. In the first stage, the buildings were assumed to have one outrigger. The outrigger was put on each floor, and ETABS analysis models were created. For each different sample buildings, 35, 40, and 45 different analytical models were utilized for that stage, respectively. In the second stage, in case of outrigger in two positions, all combinations in which outriggers can be located in different positions were taken into consideration for only 40‐story sample building. Considering all of the possible cases, where the steel high‐rise building has 40 floors and the outriggers can be in two different locations, 780 different analysis models were used.

中文翻译：

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使用时间历史分析确定钢质高层建筑的最佳外伸支架位置

支腿系统是一种有效的高层建筑系统，用于高层建筑的一个或多个位置。它旨在通过更改结构系统的载荷传递机制来控制和最小化横向位移，并增加建筑物的弯曲刚度。本文提出了一种使用结构工程设计方法估算支腿最佳位置的框架。研究了三座不同的高层建筑样本：35层140m，40层160m和45m 180m。使用时间历史分析方法来检查地震的影响。在第一阶段，假定建筑物有一个支腿。在每个楼层上都安装了支腿，并创建了ETABS分析模型。对于每个不同的样本建筑物，分别为35、40，在该阶段分别使用了45种不同的分析模型。在第二阶段，如果支腿在两个位置，则仅在40层高的样本构建中考虑了支腿可以位于不同位置的所有组合。考虑到所有可能的情况，其中钢制高层建筑有40层，并且支腿可以位于两个不同的位置，因此使用了780种不同的分析模型。