摘要
受弯混凝土构件进行抗裂度计算时,对环形截面抵抗矩塑性系数γm,现行混凝土结构设计规范GBJ10-89规定γm=2—0.4;本文建议采用γm=1.9-0.4.前式确定的γm值普遍偏大,不能确保构件抗裂的可靠性,后式克服了前我的缺点且仍保持了公式简单,运用方便的优点.
In this paper, the flexural phastics coefficient (ym) is studied to ring cross section,it is proposed to use ym=1.9-0.4,and the lack of common larger value and insecurity in KReinfored design code》 GBJ 10-89 formula ym=2- 0. 4 is over come.
出处
《兰州铁道学院学报》
1995年第3期41-48,共8页
Journal of Lanzhou Railway University
关键词
抗裂度
计算
环形截面
混凝土
受弯构件
crock resistance calculation
ring cross-section
crock resistance moment coefficient