Research on Ultimate Bearing Capacity of Cold-Formed Thin-Walled C-Section Steel Double-Limbed Closed Built-up Columns

DONG Shier; YANG Bo; ZHANG Airong

doi:10.13204/j.gyjzG21070506

Volume 52 Issue 11

Nov. 2022

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Liu Zhiguo, Ba Hengjing. RESEARCH ON EVALUATION OF PERMEABILITY OF CONCRETE BY DICHLOROMETHANE[J]. INDUSTRIAL CONSTRUCTION, 2005, 35(6): 66-67,28. doi: 10.13204/j.gyjz200506019

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DONG Shier, YANG Bo, ZHANG Airong. Research on Ultimate Bearing Capacity of Cold-Formed Thin-Walled C-Section Steel Double-Limbed Closed Built-up Columns[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(11): 175-180,174. doi: 10.13204/j.gyjzG21070506

Liu Zhiguo, Ba Hengjing. RESEARCH ON EVALUATION OF PERMEABILITY OF CONCRETE BY DICHLOROMETHANE[J]. INDUSTRIAL CONSTRUCTION, 2005, 35(6): 66-67,28. doi: 10.13204/j.gyjz200506019

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Research on Ultimate Bearing Capacity of Cold-Formed Thin-Walled C-Section Steel Double-Limbed Closed Built-up Columns

doi: 10.13204/j.gyjzG21070506

1. School of Civil Engineering and Geomatics, Southwest Petroleum University, Chengdu 610500, China;
2. Junfa Group Limited, Kunming 650000, China

Received Date: 2021-07-05

Abstract

Abstract

In order to obtain the calculation formula of the ultimate bearing capacity of cold-formed thin-walled C-shaped steel double-limbed closed built-up columns, the line software CUFSM and the direct strength method DSM were used to calculate the ultimate bearing capacity of single-limbed cold-formed thin-walled C-shaped steel member. ABAQUS finite element analysis software was used to calculate the ultimate bearing capacity of cold-formed thin-walled C-shaped steel double-limbed closed built-up columns under axial compression. By comparing the ultimate bearing capacity of single-limb cold-formed thin-walled C-shaped steel members and cold-formed thin-walled C-shaped steel double-limbed closed built-up columns under different cross-sectional geometric parameters, the influence of each parameter on the combined effect coefficients of built-up columns was determined, as well as the relations between combined effect coefficients and two important parameters. The 1stopt fitting software was used to perform regression analysis on a large number of obtained combined effect values, and the combined effect coefficient simplified formula and ultimate bearing capacity calculation formula of cold-formed thin-walled C-shaped steel double-limbed closed built-up columns were established.
- cold-formed thin-walled C-shaped steel,
- double-limbed closed built-up column,
- ultimate bearing capacity,
- combined effect,
- DSM

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References(30)

References

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