Development and testing of an alternative dissipative post-tensioned rocking timber wall with boundary columns
Development and testing of an alternative dissipative post-tensioned rocking timber wall with boundary columns
复制标题
具有边界柱的替代耗散后张摇木墙的开发和测试
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
S. Pampanin
中科院分区：
文献类型：
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作者：
F. Sarti;A. Palermo;S. Pampanin
摘要无粘结后张法摇摆耗能技术是美国预制抗震结构体系（PRESSS）计划的主要成果。经过首次开发和重大改进，该技术已扩展到钢结构，最近又扩展到木结构。木材版本，被称为预应力层压（Pres-Lam）系统，可用于木墙（单或耦合）或框架或上述组合，具有无粘结后张和补充耗散装置。在无粘结后张耗能墙系统中，再定心能力和能量耗散的组合导致受控摇摆机制，其在墙基部形成间隙开口。这会产生一个向上的位移，该位移被传递到地板隔板。如果楼板和抗侧力系统之间的连接细节设计不当，这种垂直位移不协调可能会成为一个潜在的问题。
AbstractThe unbonded posttensioned rocking and dissipative technology was first developed as the main outcome of the PREcast seismic structural systems (PRESSS) Program in the United States. After the first developments and significant refinement, the technology was extended to steel and, more recently, timber structures. The timber version, referred to as prestressed laminated (Pres-Lam) system can be either implemented for timber walls (single or coupled) or frames or a combination of the above, with unbonded posttensioning and supplemental dissipation devices. In unbonded posttensioned dissipative wall systems a combination of recentering capacity and energy dissipation leads to a controlled rocking mechanism, which develops a gap opening at the wall base. This generates an uplift displacement that is transferred to the floor diaphragm. This vertical displacement incompatibility can represent a potential issue if the connection detailing between floor and lateral resisting system is not designed proper...