摘要
在６根两等跨钢－火山渣混凝土连续组合梁的试验基础上，应用截面转换法，提出此类梁负弯矩区极限抗弯承载力计算公式；该方法无需判断组合截面中性轴的位置，并且避免了按照传统方法计算当中性轴位于钢梁上翼缘时计算结果过于保守的问题；当中性轴住于钢梁上翼缘时该方法能够给出计算简便且与试验值吻合较好的计算结果。
On the base of test of 6 two-equal-span continuous composite steel slag-concrete beams, using crosssectional conversion method, calculation formula on ultimate flexural strength for negative bending of this kind of beams is obtained. This method does not need to judge the position of the neutral axis of the composite cross-section. This method will avoid the problem that the result is too conservative when the neutral axis lies in the top flange of the steel member as the traditional method dose. It's result coincides with that of tests when the neutral axis lies in the top flange of the steel member.
出处
《钢结构》
2000年第1期47-49,共3页
Steel Construction
关键词
钢
火山渣
混凝土
连续组合梁
极限抗弯承载力
continuous composite steel slag-concrete beams negative bending region ultimate flexural strength cross-sectional conversion simple plastic theory
