Outriggers, which should be systematically analyzed and designed based on seismic performance methods in the different seismic level actions, can improve the lateral stiffness of irregular high‐rise structures. In this paper, a concrete‐filled steel frame‐core tube‐outrigger structural system is adopted for a practical overrun high‐rise building with an obviously asymmetrical vertical setback in a high‐intensity seismic region. To ensure the seismic safety of irregular high‐rise building structures, the members of the outrigger are designed based on the seismic performance analysis method, and the complex joint region and slab of the outrigger floor are also refined and analyzed. In addition, the effect of outrigger on the damage states of the structural and member is evaluated using the elastic–plastic analysis method in the rare earthquake action. Finally, the seismic mitigation efficiency of the high‐rise structure with the viscous dampers installed on the outrigger floor is analyzed. The results indicate that the member size of the outrigger should be determined based on the performance objectives of the moderate earthquake action rather than the frequent earthquake action. The shear force distribution ratio of the outer frame located at the outrigger floor is obviously amplified, which shows that the cooperative bearing ability of the outer frame and the core tube is improved because of the outrigger action. The stress in the complex joint region of the outrigger, which satisfies the material strength requirement, is analyzed by the refined finite element analysis method. The slab of the outrigger floor, which should be strengthened to effectively transfer larger horizontal seismic shear force, has obvious damage in the rare earthquake action. The region of the structure with an outrigger that experiences significant damage in the rare earthquake action is located at the outrigger floor and adjacent upper domains rather than the bottom domains, which is different from that of a structure without an outrigger. The internal force of the outrigger member can be reduced by considering viscous damper action, but the seismic mitigation efficiency is not significant because of the limited number of dampers.

中文翻译：

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在强震区域中具有不对称垂直后退的高层超限建筑物支腿的基于性能的抗震设计

在不同地震水平作用下，应根据地震性能方法对支腿进行系统分析和设计，可以提高不规则高层结构的侧向刚度。本文针对高强度地震区域的实际超限高层建筑，采用了明显带有非对称垂直后退的实际混凝土框架，采用了混凝土框架。为了保证不规则高层建筑结构的抗震安全，根据抗震性能分析方法设计了支腿的构件，并对支腿地板的复杂接缝区域和楼板进行了细化和分析。此外，在罕见地震作用中，使用弹塑性分析方法评估了支腿对结构和构件损坏状态的影响。最后，分析了在支腿地板上安装了粘性阻尼器的高层结构的减震效率。结果表明，支腿的大小应基于中等地震作用而不是频繁地震作用的性能目标来确定。位于支腿底部的外框架的剪力分布比明显增大，这表明由于支腿的作用，提高了外框架与芯管的协同承载能力。满足支腿强度的支腿复杂接缝区域中的应力，用改进的有限元分析方法进行分析。支腿楼板应进行加固，以有效地传递较大的水平地震剪切力，在罕见的地震作用下具有明显的破坏。带有支腿的结构区域在罕见地震作用中遭受严重破坏，该区域位于支腿底部和相邻的上部区域，而不是底部区域，这与没有支腿的结构不同。可以通过考虑粘性阻尼器作用来减小支腿构件的内力，但是由于阻尼器数量有限，因此减震效率并不显着。应予以加强，以有效地传递较大的水平地震剪切力，在罕见的地震作用下具有明显的破坏作用。带有支腿的结构区域在罕见地震作用中遭受严重破坏，该区域位于支腿底部和相邻的上部区域，而不是底部区域，这与没有支腿的结构不同。可以通过考虑粘性阻尼器作用来减小支腿构件的内力，但是由于阻尼器数量有限，因此减震效率并不显着。应予以加强，以有效地传递较大的水平地震剪切力，在罕见的地震作用下具有明显的破坏作用。带有支腿的结构区域在罕见地震作用中遭受严重破坏，该区域位于支腿底部和相邻的上部区域，而不是底部区域，这与没有支腿的结构不同。可以通过考虑粘性阻尼器作用来减小支腿构件的内力，但是由于阻尼器数量有限，因此减震效率并不显着。带有支腿的结构区域在罕见地震作用中遭受严重破坏，该区域位于支腿底部和相邻的上部区域，而不是底部区域，这与没有支腿的结构不同。可以通过考虑粘性阻尼器作用来减小支腿构件的内力，但是由于阻尼器数量有限，因此减震效率并不显着。带有支腿的结构区域在罕见地震作用中遭受严重破坏，该区域位于支腿底部和相邻的上部区域，而不是底部区域，这与没有支腿的结构不同。可以通过考虑粘性阻尼器作用来减小支腿构件的内力，但是由于阻尼器数量有限，因此减震效率并不显着。