摘要
本文在阐明雁形截面梁翼板局部失稳机理的基础上,导出相应弯矩临界值的计算公式,从而建议用控制翼板侧向弯曲刚度的方法置换宽厚比的限制条件,使其能正确反映板内横向钢筋的作用.文中理论分析的结论已为大型雁形截面梁的实验所印证,可供实际应用参考.
This paper clarifies the local stability problem about V shape beams. On the basis of stability mechanism, author introduce the calculation formula of critical moment. A suggestion is presented. That is to using a method that controls the flange's outside moment rigidity to replaces the method that limets flange's wide-thick ratio. This method can represent the action of cross reinforcement correctly. This analysis has been confirmed by the test of V shape beams. It can be used for engineering.
出处
《建筑结构》
CSCD
北大核心
1996年第1期39-41,共3页
Building Structure
关键词
混凝土
雁形截面梁
局部稳定
计算
V shape beams jlocal stability
wide-thick ratio
calculating length
