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Ultimate Load Bearing Capacity of Stiffened Curved Panel under Uniaxial and Biaxial Loads

被引：0
|
作者：
Xiao H. [1 ,2 ]
Wang R. [1 ]
He D. [1 ,2 ]
Wei X. [1 ]
Pu L. [1 ]
机构：
[1] School of Civil Engineering, Southwest Jiaotong University, Chengdu
[2] China Railway Major Bridge Reconnaissance and '- Design Institute Co.Ltd., Wuhan
来源：
Bridge Construction | 2023年 / 53卷 / 06期
关键词：
biaxial load; finite element method; parametric analysis; steel box girder; stiffened curved panel; ultimate load bearing capacity; uniaxial load;
D O I：
10.20051/j.issn.1003-4722.2023.06.005
中图分类号：
学科分类号：
摘要：
This study focuses on the load bearing behavior of stiffened curved panels (SCPs) under complex loading conditions. Based on the webs of the steel box girders in the main bridge of Xihoumen Rail-cum-Road Bridge, finite element modelling was conducted to analyze the ultimate load bearing capacity ( ULC) of the SCPs under uniaxial and biaxial loads (compression-compression, tension-compression), respectively, considering the geometric linearity, material linearity and initial defects. The relations between the ultimate load bearing capacity and key design parametersCcurvature radius, relative stiffness of stiffeners, width-to-thickness ratio of the subpanel between stiffeners and aspect ratio of base panel) were investigated. The results show that under uniaxial loads, the ULC of SCPs does not fluctuate along with the variation of design parameters, but falls with the increasing of lateral forces under biaxial loads. Enlarging the curvature radius of the SCPs and improving relative stiffness of stiffeners can enhance the ULC of the SCPs under biaxial loads, while reducing the width-to-thickness ratio of the subpanel between stiffeners and aspect ratio of base panel lead to the improved ULC of the SCPs under compression-compression loading. © 2023 Wuhan Bridge Research Institute. All rights reserved.
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页码：34 / 40
页数：6
相关论文
共 22 条
  • [1] LJUBINKOVIC F, MARTINS J P, GERVASIO H, Et al., Experimental Behavior of Curved Bottom Flanges in Steel Box-Girder Bridge Decks, Journal of Constructional Steel Research, 160, pp. 169-188, (2019)
  • [2] SONG Y H, LIN Q Y, CHEN J X., Research Progress on Curved Plates in China: Mechanical Analysis Methods and Load-Bearing Behaviours, Structures, 39, pp. 793-807, (2022)
  • [3] TRAN K L, DOUTHE C, SABK, Buckling of Stiffened Curved Panels under Uniform Axial Comprcssion, Journal of Constructional Steel Research, 103, pp. 110-117, (2011)
  • [4] P1CUL1N S, MOZE P., Stability Behaviour of Stiffened Curved Plates Subjected to Pure Compression, Thin-Walled Structures, 159, (2021)
  • [5] P1CUL1N S, MOZE P., Ultimate Resistance of Longitudinally Stiffened Curved Plates Subjected to Pure Comprcssion, Journal of Constructional Steel Research, 181, (2021)
  • [6] DOUTHE C, TRAN K L, SAB K, Et al., A Preliminary Design Formula for the Strength of Stiffened Curved Panels by Design of Experiment Method, Thin-Walled Structures, 79, pp. 129-137, (2011)
  • [7] MARTINS J P, S1LVA L S D, RE1S A., Ultimate Load of Cylindrically Curved Panels under In-Plane Compression and Bending-Extension of Rules from EN 1993-1-5, Thin-Walled Structures, 77, pp. 36-17, (2011)
  • [8] PARK J S, PA1K J K, SEO J K., Numerical Investigation and Development of Design Formula for Cylindrically Curved Plates on Ships and Offshore Structures, Thin-Walled Structures, 132, pp. 93-100, (2018)
  • [9] Q1N Fcngjiang, Dl Jin, ZHOU Xuhong, Et al., Analysis on Influence Factors of Stability Ultimate Bearing Capacity of U-Rib Stiffened Plate of Steel Box Girdcr[J], Journal of Chang an University (Natural Science Edition), 37, 1, pp. 58-66, (2017)
  • [10] LIU Mingyang, Study on the Ultimate Strength of Stiffened Curved Panels under Axial Compression [D], (2021)
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