Vol. 21, No. 5, pp. 367-379 (2025)
STUDY ON FLEXURAL PERFORMANCE OF NEW THIN-WALLED
U-BEAM-WOOD H-SECTION COMBINATION BEAMS
Chang Wu 1, 2, Dong-Dong Ma 1, *, Zhi-Jiang Zhao 1, Ren-Jun Fang 1 and Yie-Gong Xu 1
1 School of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, China
2 Western Center of Disaster Mitigation in Civil Engineering of Ministry of Education,
Lanzhou University of Technology, Lanzhou 730050, China
*(Corresponding author: E-mail:This email address is being protected from spambots. You need JavaScript enabled to view it.)
Received: 22 November 2024; Revised: 4 January 2025; Accepted: 8 January 2025
DOI:10.18057/IJASC.2025.21.5.1
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ABSTRACT
This study focuses on the analysis of combining the advantages of steel and wood. And then, we propose a new thin-walled H-section steel-wood combination beam, which is connected by a mixture of epoxy resin adhesive and self-tapping screws. In this paper, the bending capacity test is carried out on 7 steel-wood combination beams with the screw spacing, steel profile thickness, web height, and flange board thickness as the influencing factors, and analyze by finite element software modeling. The results show, that the overall performance of the combined beams is good, and the final failure mode of the combined beams is typical bending tensile damage with the tensile cracking of the planks on the tensile side. The change of self-tapping screw spacing on the flange of the combined beam has no obvious influence on the bending load capacity. The increase in the thickness of the flange plank, the thickness of the thin-walled steel section, and the height of the web of the combined beam has a significant increase in the bending load capacity. The adopted finite element model is reasonable and effective, and the calculation results are in good agreement with the test results.
KEYWORDS
Combined steel-wood beams, Flexural load capacity tests, Damage mechanisms, Finite element simulations
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