摘要
自20世纪40年代以来,带孔冷弯薄壁钢构件因为具有节省钢材且容易形成异型构件等优点而在全世界范围内得到广泛应用。但是早先的研究只局限于受压或受弯个别构件的弯曲屈曲研究。带孔冷弯薄壁构件的分析和设计相当复杂,尤其是当开孔形状及位置不规则时更是如此。从理论分析出发,并结合文献中给出的一系列试验资料,通过多个算例,介绍了带孔的和不带孔的冷弯薄壁钢构件弯扭屈曲和畸变屈曲的计算方法。
Since the early 1940s, steel structural cold formed members such as columns, beams and beam columns with holes had been applied all over the world, since such cold formed steel members can provide an economical design. In addition, unusual sectional forms can be easily made by the cold forming process. While during the last century, only individual compression or bending members are investigated. The analysis and design of steel cold formed sections with holes are rather complex especially when the shape of holes and their arrangements are unusual. In this paper, the calculating methods for the flexural-torsional buckling and distortional buckling of cold formed thin walled members with and without holes are introduced with a few examples based on theoretical analysis and experimental data.
出处
《建筑钢结构进展》
北大核心
2012年第4期1-10,共10页
Progress in Steel Building Structures
关键词
带孔冷弯薄壁钢构件
弯扭屈曲
畸变屈曲
cold formed thin walled steel member with holes
flexural torsional buckling
distortional buckling
