H形截面轴心受压柱在局部稳定下的优化设计
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(南阳理工学院,南阳 473004)[摘要]H形截面柱是钢结构建筑中的主要竖向构件,为了有效地降低用钢量,提高柱子的承载力和稳定性,根据局部稳定的规定,分析出轴心受压双轴对称H形柱截面宽度和高度的关系式,以及翼缘、腹板尺寸的计算公式。阐述了合理、方便地确定H形截面尺寸的方法,供设计参考。[关键词]柱;H形截面;局部稳定;轴心受压;优化设计Optimization design of H-section axial compression steel columns based on the local stability provisionsZhao Quan, Ji Xianjun, Yang Chao(Nanyang Institute of Technology,Nanyang 473004,China)Abstract:H-section column are the most important vertical member of steel structures. To reduce the steel quantity and improve the stability of columns,according to the local stability provisions, it analyzes the width-height relationship of the section as well as the calculating formulae of the dimensions of web plate and flange of the H-section column with two symmetrical axes under axial compression.A simplified method of selecting the section of H-section axial compression steel columns is presented.Keywords:column;H-section;local stability;axial compression;optimization design作者简介:赵权,讲师,一级注册结构工程师,Email:ihjn@tom.cn。参考文献[1]建筑钢结构设计手册[M].北京:冶金工业出版社,1995.[2]孙训方,方孝淑,关来泰.材料力学(第3版)[M].北京:高等教育出版社,1994.[3]JGJ99—98高层民用建筑钢结构技术规程[S].北京:中国建筑工业出版社,1998.