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Shaking table test method of building curtain walls using floor capacity demand diagrams

机译:使用地板容量需求图建筑幕墙的振动台测试方法

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Seismic demands of a curtain wall (CW) relate to the floor response of the main structure. These demands include both acceleration and deformation. Floor capacity spectrum combines these demands into one acceleration-displacement response spectrum (ADRS) representing the CW as a single degree of freedom system. The in-plane (IP) load-displacement relationship can be transformed to the acceleration-displacement format (capacity curve) of the ADRS. The intersection of the capacity curve and the ADRS is the performance point (PP) of the CW system. Another way to determine the PP is through the floor response analysis of the main structure where the pairs of acceleration and displacement demands form the demand PPs. In shaking table testing of the CW system, the two coordinates of the PP can be simulated by applying the IP deformation with a specially designed loading frame, then exciting the test specimen by the shaking table in the out-of-plane direction. PPs are accurately reproduced and the seismic performance of the CW system is evaluated. The applicability and reliability of this novel shaking table test method are discussed in this paper.
机译:幕墙(CW)的地震要求涉及主要结构的地板响应。这些要求包括加速和变形。地板容量谱将这些需求与一个加速度 - 位移响应频谱(ADRS)相结合,该响应频谱(ADRS)表示CW的单一自由度系统。平面内(IP)负载 - 位移关系可以转换为ADR的加速度 - 位移格式(容量曲线)。容量曲线和ADR的交点是CW系统的性能点(PP)。确定PP的另一种方法是通过地板响应分析的主要结构,其中加速度和位移对需求PPS形成。在CW系统的振动台测试中,可以通过用特殊设计的装载框架施加IP变形来模拟PP的两个坐标,然后通过振动台在面外方向上激励测试样品。 PPS被准确地再现,并评估CW系统的地震性能。本文讨论了这种新型振动台测试方法的适用性和可靠性。

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