半刚性连接钢框架柱计算长度系数研究

EFFECTIVE LENGTH FACTOR OF BOTTOM COLUMNS IN SEMI-RIGID JOINTED FRAMES WHEN THE COLUMN BASE IS HINGED

我国规范计算柱脚铰接时底层柱的计算长度系数,没有考虑二层柱对底层柱的支援作用和半刚性连接的影响,本文运用转角位移法,在计算过程中考虑了二层柱上端梁柱线刚度比和半刚性连接的影响,并与规范结果进行了比较。

In the code for steel structure design, the influences of semi - rigid connections and beams at far ends of the columns were not taken into consideration in the calculating method of the coefficient of effective length of columns at the bottom. In this paper, the influence of semi - rigid connections and beams at far ends of the columns above the bottom column is considered by applying displacement method, and the comparison between code and theory is given.