Experimental Seismic Fragility of Cold-Formed Steel Framed Gypsum Partition Walls
Experimental Seismic Fragility of Cold-Formed Steel Framed Gypsum Partition Walls
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DOI：
10.1061/(asce)st.1943-541x.0000657
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发表时间：
2013-08-01
影响因子：
4.1
通讯作者：
Filiatrault, Andre
中科院分区：
文献类型：
--
作者：
Retamales, Rodrigo;Davies, Ryan;Filiatrault, Andre
作为地震工程模拟研究网络（NEESR）的一部分-非结构系统抗震性能的大挑战项目模拟，进行了一项实验计划，以评估地震反应，破坏机制，和冷弯型钢框架石膏隔墙的脆弱性。了解建筑物内隔墙的抗震性能是很重要的，因为这些非结构构件的损坏可能在相对较低的层间位移水平下开始，可能会降低建筑物的整体功能，并导致地震经济损失。为此，在平面内准静态和动态测试进行了36间隔墙使用常见的施工细节。对16种配置进行测试的变量包括框架厚度、与顶部和底部轨道的螺柱连接、墙壁相交细节和部分高度墙壁等。此外，提出了新的细节，以增加漂移的要求，在第一次观察到的损害，并尽量减少通过墙壁的损害的传播。不同的墙壁配置观察到的故障机制的报告和地震脆弱性数据库组的分区依赖于施工细节的生成。脆弱性功能提供了三个不同的损坏状态的基础上所需的隔墙的修复水平。由此产生的脆弱性数据库部分地满足了更准确地估计地震期间建筑物的非结构性损坏和相应损失的关键需求。
As part of the Network for Earthquake Engineering Simulation Research (NEESR)-Grand Challenge Project Simulation of the Seismic Performance of Nonstructural Systems, an experimental program was carried out to evaluate the seismic responses, failure mechanisms, and fragilities of cold-formed steel framed gypsum partition walls. Understanding the seismic behavior of building interior partition walls is important because damage to these nonstructural components can initiate at relatively low story drift levels, potentially degrading the overall functionality of the building and contributing toward earthquake economic losses. To this end, in-plane quasi-static and dynamic tests were conducted on 36 partition walls constructed using common construction details. Variables examined on the 16 configurations tested include framing thicknesses, stud connections to top and bottom tracks, wall intersection details, and partial height walls among others. In addition, new details are proposed to increase the drift demands at which damage is first observed and to minimize the propagation of damage through the wall. The failure mechanisms observed for the different wall configurations are reported and a seismic fragility database for groups of partitions dependent on the construction details is generated. Fragility functions are provided for three distinct damage states based on the level of repair required for the partition wall. The resulting fragility database partially fills a critical need to more accurately estimate nonstructural damage and consequential losses in buildings during earthquakes.