摘要
法兰盘是钢管结构常见的连接形式。目前常用的刚性法兰连接施工复杂,焊接残余应力难以预计,而且耗材增加。采用柔性法兰连接,在一定程度上弥补了上述不足。基于力学原理,导出柔性法兰的计算公式,并通过有限元分析加以验证。在分析过程中,考虑了螺栓对法兰盘的加劲作用,并给出该类节点的使用范围。工程实例表明,采用柔性法兰连接形式,可以简化施工,节约钢材。
Flanges are common in steel tube structures. Flanges with stiffening ribs are usually used, whose construction is complicated, which will increase the steel material and bring difficulty to the estimate of residual stress. The flanges without stiffening ribs make up the shortcoming to some extent. On the basis of mechanical theory,the design formula for flange without stiffening ribs is developed and proved through the finite element method. During the process of analysis, concerning the stiffening action on the flanges by bolts, the application range of the joint is given. The adoption of flanges without stiffening ribs in real project, will not only simplify construction,but also save steel material.
出处
《钢结构》
2009年第10期10-15,61,共7页
Steel Construction
关键词
柔性法兰
节点
钢管结构
加劲肋
flexible flange
joint
steel tube
stiffening ribs
