The analysis of web opening configuration on cold-formed steel hat purlin under torsion behaviour

IF 1.4 Q2 ENGINEERING, MULTIDISCIPLINARY

World Journal of Engineering Pub Date : 2023-01-09 DOI:10.1108/wje-08-2022-0332

Yingyan Jin, F. De’nan, K. K. Choong, N. Hashim

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引用次数: 0

Abstract

Purpose Cold-formed steel has been used extensively as secondary elements such as purlins and girts in building frames. Purlin is critical to the structure of the roof because it supports the weight of the roof deck and aids to make the entire roof structure more rigid. Furthermore, cold-formed steel purlin is a replacement for wood purlin because steel purlins are light weight and more economical. Hence, the purpose of this study to investigate the effect of opening due to torsion behaviour. Design/methodology/approach This analysis used cold-formed steel hat purlin with and without openings (WOs) under different opening shape, location and spacing by using finite element LUSAS software. Findings The finite element results showed that purlin with openings had higher angle of rotation than section WO, with a percentage difference of not more than 6%. When the opening was located at mid-span, the angle of rotation reduced. Angle of rotation increased when the opening spacing increased. Number of openings also affected the torsional behaviour of the purlin. Five opening shapes, which were circle, diamond, C-hexagon, square and elongated circle, were studied. Among all the shapes, purlin with diamond opening was more resistance to torsion. Originality/value The use of cold-formed steel section with web openings (rectangular or circular) is a practical solution when it is required to pass service ducts through the structural member. However, the presence of opening gives minor effect on the structural behaviour of cold-formed steel hat purlin.

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冷弯型钢帽檩条腹板开孔结构受扭性能分析

用途冷弯型钢已被广泛用作建筑框架中的檩条和围梁等次要构件。檩条对屋顶结构至关重要，因为它可以支撑屋顶板的重量，并有助于使整个屋顶结构更加坚硬。此外，冷弯型钢檩条可以取代木檩条，因为钢檩条重量轻，更经济。因此，本研究的目的是研究扭转行为引起的开口效应。设计/方法/方法利用有限元LUSAS软件，对不同开口形状、位置和间距下的带开口和不带开口的冷弯型钢帽檩条进行了分析。有限元计算结果表明，开孔檩条的转角大于截面檩条，两者相差不超过6%。当开口位于跨中时，旋转角度减小。旋转角度随着开口间距的增加而增加。开口数量也会影响檩条的扭转性能。研究了五种开口形状，即圆形、菱形、C形六边形、方形和细长圆形。在所有形状中，菱形开口檩条的抗扭性更强。独创性/价值当需要使服务管道穿过结构构件时，使用带腹板开口（矩形或圆形）的冷弯型钢是一种实用的解决方案。然而，开口的存在对冷弯型钢帽檩条的结构性能影响较小。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

World Journal of Engineering ENGINEERING, MULTIDISCIPLINARY-

CiteScore

4.20

自引率

10.50%

发文量

期刊介绍： The main focus of the World Journal of Engineering (WJE) is on, but not limited to; Civil Engineering, Material and Mechanical Engineering, Electrical and Electronic Engineering, Geotechnical and Mining Engineering, Nanoengineering and Nanoscience The journal bridges the gap between materials science and materials engineering, and between nano-engineering and nano-science. A distinguished editorial board assists the Editor-in-Chief, Professor Sun. All papers undergo a double-blind peer review process. For a full list of the journal''s esteemed review board, please see below.