平面角钢桁架K型节点板的改进设计研究

Improving Design Research in K- shaped Joint Boards of Level Angle Steel Strusses

在桁架结构中,节点板受力十分复杂,合理选择节点板对于整个桁架设计是非常关键的。本文针对节点板设计中存在的问题,对角钢桁架采用K型节点板改进研究,应用有限元软件分析了其力学特性,结合实际工程验证了改进型节点板的合理性。改进后节点板符合现行钢结构设计规范,不但提高了桁架结构的安全性,而且可使桁架结构设计做到标准化和系列化。

In structure of trusses, due to stress complexityof joint boards, it is very crucial to rationally select joint boardswithin the whole truss. In this context, aiming at problems lyingin design of joint boards, improvement research has been doneto K - shaped joint of board in angle steel trusses, analysis ofmechanical feature has been done by sofeware of definite element,and rationality of improved joint boards is proved alongwith pratical engineering. Improved truss boards are in accordancewith norms of modern steel structure, and therefore not onlysecurity of truss structure is proved, but also standardized andserialized the truss structure.