A new finite element formulation for the lateral torsional buckling analyses of orthotropic FRP-externally bonded steel beams-Reference-Cited by-同舟云学术

A new finite element formulation for the lateral torsional buckling analyses of orthotropic FRP-externally bonded steel beams

Published:2024-01-01 Issue:1 Volume:11 Page:
ISSN:2353-7396
Container-title:Curved and Layered Structures
language:en
Short-container-title:

Author:

Doan-Tan Thi¹,Nguyen Xuan-Huy²,Van Pham Phe³

Affiliation:

1. Faculty of Civil Engineering, Campus in Ho Chi Minh City, University of Transport and Communications , # 450-451 Le Van Viet , Ho Chi Minh City , Vietnam

2. Faculty of Construction Engineering, University of Transport and Communications , #3 Cau Giay , Hanoi , Vietnam

3. Faculty of Civil Engineering, University of Transport and Communications , #3 Cau Giay , Hanoi , Vietnam

Abstract

Abstract The present study develops a new finite element (FE) formulation for the lateral torsional buckling (LTB) analyses of steel beams exteriorly bonded with orthotropic fiber-reinforced polymer (FRP) layers. The formulation considers shear deformations, partial material interaction, local and global warping deformations, and orthotropic FRP properties. The buckling responses of multispan FRP-bonded steel beams predicted by the present solutions are excellently validated against experiment and numerical solutions. As observed, the FRP strengthening is highly effective for the LTB resistance of steel beams. However, the LTB responses are strongly dependent on the orthotropic properties and strengthening lengths of FRP layers. The effects of shear deformations, span ratios, and loading conditions on the LTB responses are also quantified in the present study.

Publisher

Walter de Gruyter GmbH

Link

https://www.degruyter.com/document/doi/10.1515/cls-2024-0011/pdf

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