Development and Testing of a Friction/Sliding Connection to Improve the Seismic Performance of Gypsum Partition Walls
Development and Testing of a Friction/Sliding Connection to Improve the Seismic Performance of Gypsum Partition Walls
复制标题
提高石膏隔墙抗震性能的摩擦/滑动连接的开发和测试
作者：
G. Araya;E. Miranda;G. Deierlein
观测到的地震破坏，实验室测试和损失分析表明，石膏隔墙在小的层间位移比下容易受到地震破坏，这可能导致在设计地震地面运动下的巨大损失。为了减轻这种风险，提出了一种新的摩擦/滑动连接，可以最大限度地减少或防止损坏的隔墙层间位移率为1%或以上。所提出的摩擦/滑动连接将分隔壁与结构隔离，同时提供足够的阻力来支撑由惯性效应引起的壁面外力。三个原型连接和两个全尺寸的墙壁隔断试样，摩擦连接的细节和没有的测试结果进行了总结，以证明改进的性能，可以实现与建议的摩擦/滑动连接。传统墙体试件的试验在0.1 - 0.3%层间位移率时开始出现损坏，而带有连接件的墙体试件可在不发生任何损坏的情况下发生高达约1.5%的位移。
Observed earthquake damage, laboratory tests, and loss analyses have shown gypsum partition walls to be susceptible to earthquake damage under small story drift ratios, which can result in large losses under design earthquake ground motions. To mitigate this risk, a new friction/sliding connection is proposed that can minimize or prevent damage to partition walls for story drift ratios of 1% or more. The proposed friction/sliding connection isolates the partition wall from the structure while providing sufficient resistance to support out-of-plane forces on the wall induced by inertial effects. Test results of three prototype connections and two full-scale wall partition specimens, with and without the friction connection detail, are summarized to demonstrate the improved performance that can be achieved with the proposed friction/sliding connection. Whereas the test of the conventional wall specimen began experiencing damage at 0.1 to 0.3% story drift ratio, the wall specimen with the connection could undergo drifts up to about 1.5% without any damage.