Effectiveness of friction dampers (FDs) is investigated for connected dynamically similar and dissimilar steel buildings under uncorrelated seismic ground motion and wind excitations. The steel buildings involving moment-resisting frame (MRF) and braced frame (BF) are varied from five storeys to twenty storeys, which are connected by different configurations of the FDs. The steel buildings without and with bracing systems are modeled as plane frame structures with inertial masses lumped at each joint node. The FDs are modeled an element having yield force equal to slip load, with force-deformation behavior as elastic-perfectly plastic material. The dynamic responses of the unconnected and connected steel buildings are obtained in terms of top floor displacement and acceleration under the considered ground motion and wind excitations. It is concluded that the FDs help minimizing the gap between two adjacent buildings having utilized the space to connect the buildings. Moreover, the effectiveness of the FDs in terms of response reduction in dynamically dissimilar buildings is more than that in the similar buildings under the considered excitation scenarios. However, the effectiveness of the installed devices varies significantly under the multiple loading scenarios. Finally, the separation gap may be reduced by ∼30%, which would eventually minimize structural pounding as well as utilize the space for effective construction. Hence, important essential guidelines are outlined for structures installed with such passive control devices against such multiple scenario loadings.

中文翻译：

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摩擦阻尼器在相连钢结构房屋的地震和风响应控制中的有效性

研究了在不相关的地震地震动和风激励下，动态连接的相似和不相似的钢结构建筑的摩擦阻尼器（FDs）的有效性。包括抗弯框架（MRF）和支撑框架（BF）的钢结构建筑从五层到二十层不等，它们通过FD的不同配置进行连接。不带支撑系统和带支撑系统的钢结构建筑被建模为平面框架结构，其中惯性质量集中在每个节点处。FD被建模为一个具有等于滑移载荷的屈服力的元件，其力-变形行为表现为完全弹性的塑性材料。在考虑地面运动和风激励下，根据顶层位移和加速度获得未连接和连接的钢结构建筑物的动力响应。结论是，FD利用空间将建筑物连接起来，有助于最小化两个相邻建筑物之间的间隙。此外，在考虑到的激励场景下，动态相似建筑物中FD的响应降低效果要比相似建筑物中的FD更高。但是，在多种加载情况下，已安装设备的有效性差异很大。最后，分离间隙可减少约30％，这最终将使结构的冲击最小化，并利用空间进行有效的构造。因此，针对针对这种多情景负载的，安装有这种被动控制装置的结构，概述了重要的基本准则。