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原文传递 Damped Timber Shear Wall: Shake-Table Tests and Analytical Models

题名：	Damped Timber Shear Wall: Shake-Table Tests and Analytical Models
正文语种：	eng
作者：	Tesfamariam, Solomon;Wakashima, Yoshiaki;Skandalos, Konstantinos
作者单位：	Univ British Columbia Sch Engn Okanagan Campus 3333 Univ Way Kelowna BC V1V 1V7 Canada;Toyama Prefectural Agr Forestry & Fisheries Res C 4940 Imizu Toyama 9390311 Japan;Univ British Columbia Sch Engn Okanagan Campus 3333 Univ Way Kelowna BC V1V 1V7 Canada
关键词：	Shake-table test;Timber structures;Dampers;Energy dissipation;Analytical model
摘要：	Light-timber frames, using plywood (PW), exhibit a pinched hysteresis response, and their energy absorption capacity is limited. The energy-dissipation capacity can be enhanced using energy-dissipation mechanisms. In this paper, two wood-friction-based connectors, with wood-plywood-wood (WPW) and wood-steel-wood (WSW), are utilized. Reverse-cyclic static load tests have shown that the WPWand WSW wall systems have nondegrading and stable hysteretic curves. In this paper, through shake-table tests, performance of WPW, WSW, PW, and WSW-PW coupled wall systems are investigated. As expected, the shake-table results indeed showed nondegrading hysteretic curve responses of WPWand WSW wall systems. Furthermore, a phenomenological model, where nonlinear behavior of the shear wall is reduced to a single spring element, is proposed for the wall systems. The nondegrading wall system (WPW, WSW) is modeled using the Bouc-Wen hysteretic model and the PW is modeled using the Pinching4 hysteretic model. Overall, there is good agreement between the test and analytical models. Results of the experimental test indeed show the utility of the new wall systems. (C) 2021 American Society of Civil Engineers.
出版年：	2021
期刊名称：	Journal of structural engineering
卷：	147
期：	6