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原文传递 Development of Suitable Test Methods for the Screw Connections in Cold-Formed Steel Roof Battens
题名: Development of Suitable Test Methods for the Screw Connections in Cold-Formed Steel Roof Battens
正文语种: 英文
作者: Mayooran Sivapathasundaram;and Mahen Mahendran
作者单位: Queensland Univ
关键词: Cold-formed steel structures; Light-gauge steel roofing systems; Steel roof battens; Pull-through failures; Test methods; Experimental study; Metal and composite structures.
摘要: The roofing systems of low-rise buildings are commonly made of thin, high-strength steel roof sheeting and battens. These light-gauge steel roofing systems are subjected to high-wind uplift loads during tropical cyclones and thunderstorms. In recent times, roof batten-to-rafter or truss connection failures have been identified as a major cause of severe roof failures during high-wind events. Most of these connection failures are in the form of localized pull-through failures of the bottom flanges of steel roof battens at their screw connections. The design practice at present is based on expensive and time-consuming full-scale tests or inappropriate small-scale tests. Hence, there is an urgent need to develop suitable test methods to determine the pull-through capacity of roof battens. This paper presents the details of an experimental study undertaken to investigate pull-through failures of light-gauge steel roof battens using both full-scale and small-scale tests. The investigation showed that the design capacity equations and test methods given in current cold-formed steel design standards for single-screw connections cannot be used for roof batten pull-through failures. This paper recommends suitable small-scale test methods and associated calculation methods to determine the pull-through capacities of roof battens. DOI: 10.1061/(ASCE)ST.1943-541X .0001476. © 2016 American Society of Civil Engineers.
出版日期: 2016.06
出版年: 2016
期刊名称: Journal of Structural Engineering
卷: Vol.142
期: NO.06
页码: 04016025
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