【作者】 戴素娟； 卢世霞；

【Author】 Dai Sujuan, Lu Shixia ( College of Civil Engineering and Architecture, Shan Dong University of Science and Technology, Qingdao, Shandong, 266510 )

【机构】 山东科技大学土建学院；

【摘要】 组合截面中板件的相关屈曲影响构件的局部稳定,屈曲时板件之间的相关作用不容忽视。本文在分析了钢构件中板组效应的基础上引入约束系数来考虑相邻板件间的约束作用。并分析了工字形截面轴心受压构件中腹板与翼缘的相关屈曲,推导出了约束系数的关系。根据板件屈曲微分方程的Levy解建立了均匀受压工字形截面的弹性屈曲理论,给出了相邻板件约束系数的计算式。更多还原

【Abstract】 Plate interaction buckling of modular section affects part stability. It is necessary to consider the correlation of plates when they are buckling. Based on plate-assembly affect of steel members, the restraining coefficient is introduced to account for the restraining action exerted by adjacent plate elements. The interaction buckling of web and flanges of I shaped section under uniform compression is analyzed. Relationship of web and flanges’ restraining coefficient is conjectured. Elastic interaction buckling theory of I shaped section is established according to classical Levy solutions to differential equation of plate stability. Formulations calculating restraining coefficient are derived.更多还原