(同济大学建筑工程系，上海 200092)

［摘要］《门式刚架轻型房屋钢结构技术规程》(CECS102：2002)应用到现在，已渐渐暴露出一些不妥之处。结合上海市《轻型钢结构技术规程》的编制工作，比较了国内外规范关于工字形截面有效面积的计算规定，采用有限元方法进行数值分析，指出了现行门式刚架规程的不合理之处，提出了腹板有效宽度的修改意见。

［关键词］门式刚架；工字形截面；有效宽度；设计规范；有限元分析；建议公式

Calculation analysis on effective area of H-section under axial compression

Li Zijie, Zhang Qilin, Liu Shenru(Department of Building Engineering, Tongji University, Shanghai 200092, China)

Abstract:Technical Specification for Steel Structure of Light-weight Buildings with Gabled Frames (CECS102: 2002) has been used for several years and exposed some defects. Prepared for the edit of Technical Specification for Light Weight Steel Building Systems of Shanghai, calculation of effective area of H-section according to different codes of our country and others was compared, and numerical analysis by finite element method was carried out. Unsuitable rules of Code CECS102: 2002 were pointed out, and the suggestions for amendment of the effective width of the web were given.

Keywords:gabled frames; H-section; effective width; design codes; finite element analysis; proposed formula

上海市轻型钢结构技术规程编制基金资助(合同编号2008-470-44)。

作者简介：李自杰，硕士研究生，Email：LZJ033662@163.com。