摘要
通过对国内外关于无黏结预应力混凝土结构极限状态下预应力筋极限应力计算公式的探讨,指出对体外预应力混凝土结构体外筋极限应力运用体内无黏结筋的计算方法来确定有一定偏差,体外预应力筋极限应力在设计中如何准确确定应进一步研究探讨。
Based on the discuss of ultimate stress formula of the presstressing tendons in unbond prestressed concrete structures at ultimate status around the world, this paper point out that using the inner prestressing tendon formulas to calculate the ultimate external prestress in unbonded pretress concrete structures is not accurate. How to calculate the external ultimate prestress in design should be lucubrated.
出处
《工程建设与设计》
2006年第11期14-16,共3页
Construction & Design for Engineering
关键词
体外预应力
体外筋
应力增量
极限应力
external prestressing
external tendons
stressincrement
ultimate stress
