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Experimental and numerical assessment of EBF structures with shear links

机译:剪切链路EBF结构的实验性和数值评估

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摘要

Eccentrically braced frames (EBF) represent an optimal structural solution for seismic prone areas, being able to provide high dissipative capacity and good elastic stiffness, to withstand strong seismic events without significant loss of bearing capacity and to avoid damage to non-structural elements in case of low and moderate earthquakes. The accurate knowledge of the cyclic behaviour of the dissipative links, characterizing the whole performance of EBFs, is required to optimize the structural properties and to refine the design techniques adopted for multi-storey buildings' analysis. Reliable numerical models for the links, at the same time requiring a limited computational effort, are then needed. The present work shows the results of a wide experimental test campaign executed on real-scale one storey/one bay frames with horizontal and vertical links, together with the elaboration of a simple semi-analytical model for the quick representation of the cyclic behaviour of shear links.
机译:偏心地支撑框架(EBF)代表了地震俯卧面积的最佳结构解决方案,能够提供高耗散容量和良好的弹性刚度,以承受强烈的地震事件,而无需承载能力的显着损失,以避免损坏非结构性元素,以防万一低地震。需要精确了解耗散链路的循环行为,表征EBF的整体性能,以优化结构特性,并优化用于多层建筑物的分析所采用的设计技术。然后,需要可靠的数值模型,同时需要有限的计算工作。目前的工作表明,在具有水平和垂直链路的实际一个层叠/一个湾框架上执行的广泛实验测试活动的结果以及制定简单的半分析模型,以便快速表示剪切的循环行为链接。

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