桥梁体外预应力筋极限应力计算方法的评价与分析  

Evaluation and Analysis of Calculating Method of Ultimate Stress in External Prestressing Tendons of Bridges

作　　者：黄侨[1] 关彦超[1] 

机构地区：[1]哈尔滨工业大学桥梁工程研究所,哈尔滨市150001

出　　处：《公路》2007年第12期45-50,共6页Highway

摘　　要：根据现有的体外预应力混凝土试验梁数据,在理论分析的基础上对既有的多组体外预应力筋极限应力简化计算公式进行验证分析。通过对比分析可找出一组与试验结果吻合最好的极限应力计算公式。在此基础上再考虑现行桥梁结构设计的安全系数,可用以指导桥梁体外预应力结构的工程设计。According to the data of the present experiment beam of external prestressing concrete, the different simplified formulas to the ultimate stress of external prestressing tendon are analyzed on the basis of theoretical analysis. Then a almost suitable calculating formula of the ultimate stress can be found. In this foundation, the safety coefficients of the bridge structure design are considered and can be used to instruct the design of external prestressing beam.

关 键 词：桥梁 体外预应力 极限应力 

分 类 号：U441.5[建筑科学—桥梁与隧道工程]