Experimental Seismic Response of a Resilient 2-Story Mass-Timber Building with Post-Tensioned Rocking Walls
Experimental Seismic Response of a Resilient 2-Story Mass-Timber Building with Post-Tensioned Rocking Walls
复制标题
DOI：
10.1061/(asce)st.1943-541x.0002382
复制
发表时间：
2019-11-01
影响因子：
4.1
通讯作者：
Wichman, Sarah
中科院分区：
文献类型：
--
作者：
Pei, Shiling;van de Lindt, John W.;Wichman, Sarah
本文描述了在加州大学圣地亚哥分校的自然灾害工程研究基础设施 (NHERI) 大型户外振动台设施中进行的一系列全尺寸 2 层大木结构振动台试验的设计、施工和实验结果。该建筑样本采用了一个抗侧向力系统，该系统由两个由交叉层压木 (CLT) 板制成的后张法摇墙组成。该结构系统的设计具有弹性，能够在强烈的地面运动下进行重复测试而不会造成重大损坏。测试大楼采用开放式平面图，适合商业和住宅混合应用。 CLT 地板和屋顶隔膜具有大的悬臂部分，代表了真实的纵横比。该建筑遭受了一系列 14 次地震地面运动，屋顶最大位移达到 5%。动态测试完成后，包括在考虑的最大地震危险水平下进行的几次地面运动，建筑物能够重新回到中心位置，没有出现意外的结构损坏，凸显了大型木结构岩墙结构系统的弹性。
This paper describes the design, construction, and experimental results of a series of full-scale 2-story mass-timber building shake table tests conducted at the Natural Hazards Engineering Research Infrastructure (NHERI) at the University of California, San Diego large outdoor shake table facility. The building specimen utilized a lateral force-resisting system consisting of two post-tensioned rocking walls made of cross-laminated timber (CLT) panels. The structural system was designed to be resilient with the ability to undergo repetitive testing under strong ground motions without significant damage. The test building had an open floor plan suitable for mixed commercial and residential applications. The CLT floor and roof diaphragm had large cantilevered portions that represented realistic aspect ratios. The building was subjected to a series of 14 earthquake ground motions and pushed to a maximum roof drift of 5%. After completion of the dynamic tests, which included several ground motions at the maximum considered earthquake hazard level, the building was able to recenter with no unintended structural damage, highlighting the resilience of the mass-timber rocking-wall structural system.