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原文传递 Contribution of Partition Walls in Lateral Load-Resisting Systems of Low-Rise Light Wood Frame Buildings

题名：	Contribution of Partition Walls in Lateral Load-Resisting Systems of Low-Rise Light Wood Frame Buildings
正文语种：	eng
作者：	Niederwestberg, Jan;Daneshvar, Hossein;Chui, Ying Hei;Chen, Zhiyong
作者单位：	Univ Alberta Dept Civil & Environm Engn 9211-116 St NW Edmonton AB T6G 1H9 Canada\|Univ Alberta Sch Min & Petr Engn 9211-116 St NW Edmonton AB T6G 1H9 Canada;Univ Alberta Dept Civil & Environm Engn 9211-116 St NW Edmonton AB T6G 1H9 Canada\|Univ Alberta Sch Min & Petr Engn 9211-116 St NW Edmonton AB T6G 1H9 Canada;Univ Alberta Dept Civil & Environm Engn 9211-116 St NW Edmonton AB T6G 1H9 Canada\|Univ Alberta Sch Min & Petr Engn 9211-116 St NW Edmonton AB T6G 1H9 Canada;FPInnovations Bldg Syst 2665 East Mall Vancouver BC V6T 1Z4 Canada
关键词：	Low-rise residential construction;Light wood frame building;Partition wall;Gypsum wallboard (GWB);Lateral load-resisting system (LLRS);Seismic design
摘要：	Prescriptive design is a common practice in North America for low-rise light wood frame buildings. The prescriptive wood-based shear wall details provided in building codes to resist lateral loads were largely derived based on a combination of historical performance and engineering analysis. Inherent within the historical performance assumption is the presence of certain elements such as internal partitions that contribute to direct load resistance and structural redundancy. This inherent assumption is sometimes challenged by design engineers and proponents of alternative lateral load-resisting systems. In an attempt to showcase the contributions of the partition walls, a number of archetypes with various quantities of partitions were analyzed using a finite-element program. In the finite-element models, the wood-based structural shear walls and partition walls with gypsum wallboard were modeled as macroelements, with mechanical properties obtained from previous tests. Assumptions were made for the diaphragm and connection stiffness values. The results show a significant contribution of the partition walls to the lateral load resistance of light wood frame buildings. Partition walls accounted for 55%-71% of the overall lateral resistance of the evaluated buildings. Furthermore, diaphragms and wall-to-diaphragm connections contribute significantly to the overall behavior of the structures. (C) 2021 American Society of Civil Engineers.
出版年：	2021
期刊名称：	Journal of structural engineering
卷：	147
期：	4