论文部分内容阅读
异型截面目前在大跨结构中被广泛使用,如何科学合理地对其进行设计已是一个很现实的问题。首先对异型截面进行了分类。在《钢结构设计规范》(GB 50017—2003)对此没有明确规定的情况下,在研究规范相应公式来历的基础上,通过参考、套用规范公式并辅以有限元分析的方式,以封闭截面为对象,研究此类构件验算问题。涉及强度、弯矩作用平面内整体稳定、弯矩作用平面外整体稳定、局部稳定等各方面的内容。
Shaped cross-section is widely used in long-span structures. How to design it scientifically and reasonably is a very real problem. First of all, shaped sections were classified. In the “Steel Structure Design Code” (GB 50017-2003) is not clearly defined in this case, based on the study of the corresponding formula origin, through the reference, apply the formula and coupled with finite element analysis of finite element analysis, with closed section As the object, to study the checking of such components. Involves the strength, the role of bending moments in the overall stability of the plane, the role of moments outside the overall stability of the plane, local stability and other aspects.