不锈钢箱形轴压构件整体稳定承载力计算方法

杨璐; 尚帆; 赵梦晗; 徐东辰; 张勇

doi:10.11918/j.issn.0367-6234.201505047

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不锈钢箱形轴压构件整体稳定承载力计算方法

更新时间：2026-10-23

- 不锈钢箱形轴压构件整体稳定承载力计算方法
- Calculation method for the overall stability of box-section stainless steel member under axial compression
- 哈尔滨工业大学学报 2017年49卷第6期页码：2017-6
- 作者机构：
  
  1. 北京工业大学建筑工程学院,北京,100124
  2. 北京交通大学土木建筑工程学院,北京,100044
- 作者简介：
  
  杨璐 (1982—)，男，博士，副教授
- 基金信息：
  
  国家自然科学基金(51108007);中国博士后科学基金特别资助(2014T70020)
- DOI：10.11918/j.issn.0367-6234.201505047
  中图分类号： TU391
- 纸质出版：2017
- 稿件说明：
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杨璐, 尚帆, 赵梦晗, 等. 不锈钢箱形轴压构件整体稳定承载力计算方法[J]. 哈尔滨工业大学学报, 2017,49(6):2017-6.

YANG Lu, SHANG Fan, ZHAO Menghan, et al. Calculation method for the overall stability of box-section stainless steel member under axial compression[J]. 2017, 49(6): 2017-6.
杨璐, 尚帆, 赵梦晗, 等. 不锈钢箱形轴压构件整体稳定承载力计算方法[J]. 哈尔滨工业大学学报, 2017,49(6):2017-6. DOI： 10.11918/j.issn.0367-6234.201505047.

YANG Lu, SHANG Fan, ZHAO Menghan, et al. Calculation method for the overall stability of box-section stainless steel member under axial compression[J]. 2017, 49(6): 2017-6. DOI： 10.11918/j.issn.0367-6234.201505047.

摘要

为研究不锈钢箱形轴心受压构件的整体稳定承载力，采用ANSYS软件对不锈钢轴压构件进行了非线性有限元模拟，将模拟结果与试验结果进行对比，验证了所建立有限元模型的准确性.采用经试验验证的有限元模型对具有不同几何初始缺陷、截面残余应力、材料力学性能、截面宽厚比以及长细比的不锈钢工字形构件整体稳定承载力进行参数分析，通过对比确定材料力学性能、构件长细比为影响承载力的主要因素.在参数分析的基础上，依据稳定承载力的数据拟合结果提出了整体稳定系数的三段式计算方法，并将该计算方法与试验数据进行对比，表明此计算方法可较准确地计算不锈钢箱形轴心受压构件整体稳定承载力.

Abstract

To investigate the overall stability of stainless steel axial compression member with welded box-section

the nonlinear finite element simulation of the stainless steel axial compression members was conducted by ANSYS. By comparing the simulation results with the experimental results

the accuracy of the finite element (FE) model was verified. The initial geometric imperfections

section residual stress

mechanical properties

section width-to-thickness ratio and slenderness ratio which affect the overall stability of the member ultimate bearing capacity were parametrically analyzed by the proposed FE model. The results show that the mechanical properties and slenderness ratio of member are key influential factors on the ultimate load. A new three-section formula for calculating the overall stability coefficient has been proposed by data fitting

which can accurately predict the overall stable bearing capacity of stainless steel axial compression members with welded box-section.

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