摘要
通过5根预弯梁的静载和疲劳加载试验，对预弯梁的破坏特征。截面应变、混凝土极限压应变、应力应变关系等进行探讨，提出了受弯承载力的理论计算公式，计算结果与试验值符合较好。
Based on the flexure test of five preflex prestressed concrete beams under static and fatigue loading,the paper treats of failure characteristic、section strain、 ultimate compression strain of concrete、stress- strain relationships and so on. The theoretical equations of ultimate flexural strength are presented and all the calculated values agree well with the measured ones.
出处
《长沙交通学院学报》
1998年第2期33-38,共6页
Journal of Changsha Communications University
关键词
预弯
预应力混凝土
受弯构件
正截面
公路桥
preflex prestressed concrete
flexural members
normal section
ultimate flexuralstrength
