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原文传递 CLT Shear Walls Anchored with Shear-Tension Angle Brackets: Experimental Tests and Finite-Element Modeling

题名：	CLT Shear Walls Anchored with Shear-Tension Angle Brackets: Experimental Tests and Finite-Element Modeling
正文语种：	eng
作者：	D'Arenzo, Giuseppe;Casagrande, Daniele;Polastri, Andrea;Fossetti, Marinella;Fragiacomo, Massimo;Seim, Werner
作者单位：	Univ Kassel Bldg Rehabil & Timber Engn Kurt Wolters St 3 D-34125 Kassel Germany;Natl Res Council Italy Inst Bioecon Via Biasi 75 I-38010 San Michele All Adige Italy;Natl Res Council Italy Inst Bioecon Via Biasi 75 I-38010 San Michele All Adige Italy;Kore Univ Enna Fac Engn & Architecture I-94100 Enna Italy;Univ LAquila Dept Civil Construct Architectural & Environm Eng I-67100 Laquila Italy;Univ Kassel Bldg Rehabil & Timber Engn Kurt Wolters St 3 D-34125 Kassel Germany
关键词：	Cross-laminated timber;Wall-to-floor connection;Experimental tests;Finite element (FE) modeling;Coupled shear-tension behavior;Strength domain;Plastic load redistribution
摘要：	Due to the high in-plane stiffness and strength capacity of cross-laminated timber (CLT) panels, the mechanical behavior of CLT shear walls is mainly influenced by the mechanical performances of the connections. Several calculation models have been proposed considering the mechanical anchors effectiveness only along their primary direction. However, recent studies showed a relatively high stiffness and capacity of new typologies of angle brackets when subjected to uplift vertical loads, such as for the wall-to-floor Titan V (TTV) angle bracket, developed to obtain high mechanical performances along both the vertical-tensile and horizontal-shear direction. In this paper a study on CLT shear walls anchored with TTV angle bracket is presented. The aim of the work is to investigate the effects of the coupled shear-tension behavior of the connections at the wall level and the effectiveness of TTVas an alternative to traditional mechanical anchors. The paper presents results from full-scale experimental tests and finite-element (FE) numerical analyses in SAP2000, where an innovative macroelement has been developed to model the TTV coupled shear-tension behavior. The effects of the plastic load redistributions of the TTV angle bracket on the global mechanical behavior of the CLT shear wall are discussed. (C) 2021 American Society of Civil Engineers.
出版年：	2021
期刊名称：	Journal of structural engineering
卷：	147
期：	7