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原文传递 Experimental Evaluation of Design Procedures for Fillet Welds to Hollow Structural Sections

题名：	Experimental Evaluation of Design Procedures for Fillet Welds to Hollow Structural Sections
正文语种：	英文
作者：	Jeffrey A. Packer, Ph.D., P.Eng., D.Sc., F.ASCE;Min Sun, Ph.D.;Kyle Tousignant
作者单位：	Univ, of Toronto;Univ, of Victoria
关键词：	Hollow structural section; Rectangular hollow section; Circular hollow section; Connection; Joint; Welding; Directional strength-enhancement factor; Fillet weld; Metal and composite structures.
摘要：	This paper discusses contemporary design procedures for fillet welds to hollow structural sections (HSS) in several prominent design codes. The structural reliability associated with the directional strength-enhancement factor contained in North American Specifications is examined, based on a set of laboratory tests on fillet-welded connections between HSS and rigid end-plates. A total of 33 connections, in which the welds had been designed to be the critical elements, were tested to failure by axial tension loading applied to the HSS members. The experimentally obtained weld strengths were compared to the predicted nominal strengths. The directional strengthenhancement factor was found to lead to unsafe strength predictions, particularly for large weld sizes. Hence, a restriction on the use of this factor for fillet welds to HSS members, in North American steel design specifications, needs to be considered. The analysis also shows that Eurocode 3 fillet weld design provisions give conservative strength predictions. DOI: 10.1061/(ASCE)ST.1943-541X .0001467. © 2016 American Society of Civil Engineers.
出版日期：	2016.05
出版年：	2016
期刊名称：	Journal of Structural Engineering
卷：	Vol.142
期：	NO.05
页码：	04016007