摘要
通过对国内外６０根试验梁的分析，得出计算无粘结筋极限应力的公式，具有较高的精 度。由该公式可知，非预应力筋对无粘结筋极限应力的影响随配筋强度比的增加发生改变。
Based on the analyses of sixty experimental unbonded partially prestressed concrete beams at home and abroad, a formula for evaluating the ultimate stress in unbonded tendons, which has high accuracy, is proposed. The calculation results show the effect of nonprestressed steel on the ultimate stress of unbonded tendons changes with the increase of steel index ratio.
出处
《建筑结构》
CSCD
北大核心
1999年第8期10-11,33,共3页
Building Structure
关键词
无粘结筋
极限应力
部分预应力
混凝土梁
ultimate stress
unbonded tendons
prestressing
nonprestressing
steel index ratio
