钢结构外露式刚接柱脚设计新方法

A new method for design of the open rigid steel column base connection

介绍了钢结构外露式刚接柱脚的两种设计方法,传统方法(手册方法)采用线弹性理论,平截面假定,方法成熟;新方法(规程方法)按照混凝土规范中的材料假定,考虑了混凝土受压时的材料非线性,理论上更加合理。通过对这两种方法设计假定和设计步骤等的介绍,说明了两种方法的区别,并给出了新设计方法的设计实例,以作为工程设计参考。

Two design methods of the open rigid steel column base connection were introduced. The traditional method( manual method) adopts the linear elastic theory and the plane cross-section assumption,and it is a mature design method. The new method( code method) considers the material nonlinearity of concrete under the pressure according to the material assumption in the concrete specification. By introducing the design assumptions and design steps of the two methods,the difference between the two methods is explained,and a design example of the new design method is given in order to be a reference for the engineering design.