Behaviour of Steel I Beams with Web Openings

Q3 Engineering Open Civil Engineering Journal Pub Date : 2023-03-01 DOI:10.28991/cej-2023-09-03-08

J. L. Abbas

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引用次数: 2

Abstract

This paper aims to study the behavior of steel I beams with web openings. However, web openings might lead to a noteworthy reduction in the load-carrying capacity of beams, but can also be so supportive and essential from an economic point of view. An experimental investigation and nonlinear three-dimensional finite element analysis using the ABAQUS computer program were planned and conducted on six steel I-beams having the same dimensions, different diameter ratio spacing, and opening shapes such as circular, rectangular, and hexagonal. Experimental results showed that the ultimate load of a steel beam with web openings reduced with an increase in the area of the opening. A circular opening has a stronger shape than a rectangular opening because a rectangle has fast deflection and torsion angles, so it resists an applied load less than a circular opening. Also, the beam with hexagonal openings is better than that with rectangular openings because hexagonal openings are more resistant to deflection and deformation than rectangular openings. The finite element results, which are validated against the experimental results, show good accuracy with the experiment. Besides, a parametric study is presented here to study the influence of varying the shape of openings on the value of the failure load and midspan deflection. It can be noticed that the steel beam with a circular opening, which had been tested experimentally and modeled by the Abaqus program, is the best case and gives a higher failure load as compared to the diamond, octagonal, trapezoidal, transverse, and longitudinal ellipses. Thus, providing web openings reduces the weight and increases structural efficiency. Doi: 10.28991/CEJ-2023-09-03-08 Full Text: PDF

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带腹板开口的I型钢梁的性能

本文旨在研究带腹板开口的工字钢梁的受力性能。然而，腹板开口可能会导致梁的承载能力显著降低，但从经济的角度来看，也可能是如此的支持和必不可少。利用ABAQUS计算机程序对6根尺寸相同、直径比间距不同、开口形状为圆形、矩形、六角形的工字钢进行了试验研究和非线性三维有限元分析。试验结果表明，带腹板开口的钢梁的极限荷载随开口面积的增大而减小。圆形开口比矩形开口具有更强的形状，因为矩形开口具有快速的偏转和扭转角，因此它比圆形开口更能抵抗施加的载荷。此外，由于六角形开口比矩形开口更能抵抗挠度和变形，因此六角形开口的梁优于矩形开口的梁。有限元计算结果与实验结果进行了验证，表明了较好的准确性。此外，本文还研究了不同开孔形状对破坏荷载和跨中挠度值的影响。可以注意到，与菱形、八角形、梯形、横向和纵向椭圆形钢梁相比，经实验和Abaqus程序模拟的圆形开口钢梁是最佳情况，其破坏荷载更高。因此，提供腹板开口减少了重量并提高了结构效率。Doi: 10.28991/CEJ-2023-09-03-08全文:PDF

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来源期刊

Open Civil Engineering Journal Engineering-Civil and Structural Engineering

CiteScore

1.90

自引率

0.00%

发文量

期刊介绍： The Open Civil Engineering Journal is an Open Access online journal which publishes research, reviews/mini-reviews, letter articles and guest edited single topic issues in all areas of civil engineering. The Open Civil Engineering Journal, a peer-reviewed journal, is an important and reliable source of current information on developments in civil engineering. The topics covered in the journal include (but not limited to) concrete structures, construction materials, structural mechanics, soil mechanics, foundation engineering, offshore geotechnics, water resources, hydraulics, horology, coastal engineering, river engineering, ocean modeling, fluid-solid-structure interactions, offshore engineering, marine structures, constructional management and other civil engineering relevant areas.