Experimental and numerical investigation of axial compressive strength of unstiffened slender tapered-webs

Ibrahim, Mohamed; Aghoury, Ihab M. El; Ibrahim, Sherif A.

doi:10.1016/j.jcsr.2021.106921

Cited by 2 publications

(1 citation statement)

References 9 publications

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“…Nowadays, a few research studies (Ibrahim, 2021; Ibrahim et al , 2021; Quan et al , 2020; Tankova et al , 2018) have been conducted to determine the effects of different Web perforation configurations on the structural behaviour of steel section. Basically, the perforated shapes such as circular, rectangular, square, hexagon, octagon or elliptical were tested and the effects on the structural performance were studied.…”

Section: Introductionmentioning

confidence: 99%

Parametrical analysis of the tapered steel section with elliptical perforation: shear behaviour effects

De’nan

Hashim

Sua

2022

WJE

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Purpose With the vast advancement of structural steel properties over the recent decades, structural steel has become the dominate material for the construction of bridges, stadiums, factories and high rise buildings. This paper aims to present the study of structural behaviour and efficiency of tapered steel section with elliptical perforation under shear loading conditions. Design/methodology/approach The effect of various elliptical perforation configurations such as tapering ratio, perforation size, perforation orientation and perforation layout on the shear behaviour of tapered steel section has been investigated by using finite element method. A total of 112 models are simulated via LUSAS software. Findings It has been found that the most efficient model is the tapered steel section with tapering ratio of 0.3 and vertical elliptical perforation of 0.2 times the section depths which are arranged in Layout 3. The most efficient model has a shear efficiency of 1,094.35 kN, which is 4.12% less than the tapered steel section without perforation, but it could achieve a 0.32% of weight reduction. Originality/value The smaller tapering ratio and perforation size contributed to the higher shear buckling capacity and efficiency for the elliptical perforated tapered steel section.

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Section: Introductionmentioning

confidence: 99%

Parametrical analysis of the tapered steel section with elliptical perforation: shear behaviour effects

De’nan

Hashim

Sua

2022

WJE

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Cyclic Behavior of Gabled Frames with Web-Tapered Columns and Rafters

Yang¹,

Xiao

et al. 2022

Materials

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Cyclic loading tests were conducted on three 1/2-scale, half-bay steel gabled frames (SGFs) to investigate their seismic performance. The three specimens with reduced joint stiffness were designed based on the prototype drawing shown in China design guideline 02SG518—1: specimen SV1 with a reduced thickness of the joint end-plate and bolt diameter, specimen SV2 with a reduced number of bolts, and specimen SV3 with a reduced bolt diameter. The load capacity, rotational stiffness, rotational capacity, and ultimate failure mode of specimens SV1, SV2, and SV3 were investigated. The experimental results showed that specimen SV1 failed due to the local buckling of the lower flange of the rafter, and specimens SV2 and SV3 due to the local buckling of upper flange of the rafter. The joint zone of all specimens kept well, indicating that the prototype joint had a large margin of safety. The hysteresis curves of all specimens were not full, and the ductility and energy dissipation capacity were limited. The end-plate thickness, bolt diameter, and steel grade affected the hysteresis performance of the SGF little. A refined finite element model was established, and the predicted results compared well with the test results. The test and analysis results demonstrated that there was slight utilization and distribution of post-buckling strength.

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Experimental and numerical investigation of axial compressive strength of unstiffened slender tapered-webs

Cited by 2 publications

References 9 publications

Parametrical analysis of the tapered steel section with elliptical perforation: shear behaviour effects

Parametrical analysis of the tapered steel section with elliptical perforation: shear behaviour effects

Cyclic Behavior of Gabled Frames with Web-Tapered Columns and Rafters

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