ANALYSIS OF BEARING CAPACITY OF COLD-FORMED THIN-WALLED STEEL DOUBLE-LIMB BATTENED-PLATE LATTICE COLUMNS UNDER AXIAL COMPRESSION

JIN Lu; CHEN Qiang; TIAN Dake

doi:10.13204/j.gyjzG21060604

Volume 51 Issue 10

Feb. 2022

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JIN Lu, CHEN Qiang, TIAN Dake. ANALYSIS OF BEARING CAPACITY OF COLD-FORMED THIN-WALLED STEEL DOUBLE-LIMB BATTENED-PLATE LATTICE COLUMNS UNDER AXIAL COMPRESSION[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(10): 94-100. doi: 10.13204/j.gyjzG21060604

Citation:

JIN Lu, CHEN Qiang, TIAN Dake. ANALYSIS OF BEARING CAPACITY OF COLD-FORMED THIN-WALLED STEEL DOUBLE-LIMB BATTENED-PLATE LATTICE COLUMNS UNDER AXIAL COMPRESSION[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(10): 94-100. doi: 10.13204/j.gyjzG21060604

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ANALYSIS OF BEARING CAPACITY OF COLD-FORMED THIN-WALLED STEEL DOUBLE-LIMB BATTENED-PLATE LATTICE COLUMNS UNDER AXIAL COMPRESSION

doi: 10.13204/j.gyjzG21060604

JIN Lu¹,
CHEN Qiang¹,
TIAN Dake^{2
,
,}

1. School of Civil Engineering, Shenyang Jianzhu University, Shenyang 110168, China;
2. School of Mechanical Engineering, Shenyang Jianzhu University, Shenyang 110168, China

Received Date: 2021-06-06
Available Online: 2022-02-21

Abstract

Abstract

In order to meet the requirements of high stiffness and high bearing capacity of special low-rise light-weight building structure,a kind of cold-formed thin-walled steel double-limb battened-plate lattice column was proposed to study the axial bearing capacity.The influence mechanism of the edge stiffener length,web thickness and the number of batten plates on the bearing capacity of thin-walled steel lattice columns under axial compression was analyzed by using ABAQUS finite element software.The load-displacement curve,stress development trend and failure mode of the grid columns under various working conditions were obtained.The results showed that the bearing capacity of cold-formed thin-walled steel lattice columns with the same section decreased with the increase of the length of the columns,and the failure mode of the members changed from strength failure to overall instability failure,and the local buckling and distortion buckling were accompanied.The increase of plate thickness had a great influence on the axial compression capacity of cold-formed thin-walled steel lattice columns,while the influence of the edge stiffener length and the number of batten plates on the bearing capacity of the thin-steel lattice column under axial compression was not positive.Through comparative analysis,the thin-walled steel double-limb battened-plate lattice columns had high bearing capacity and good lateral stiffness under axial compression. Within the range of section size parameters of lattice columns,it was suggested that the thickness of thin-walled steel of lattice columns should be 1.0-1.5 mm,the spacing of batten plates should be 300 mm,and the length of edge stiffeners should be 1/3 of the section height,so as to provide a reference for the design of members.
- cold-formed thin-walled steel lattice column,
- axial compressive performance,
- ultimate bearing capacity,
- failure mode,
- batten plate

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References(14)

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