Coupling model for calculating prestress loss caused by relaxation loss,shrinkage,and creep of concr

• 作 者: 曹国辉 胡佳星 张锴
• 机 构: CollegeofCivilEngineering,CollegeofCivilEngineering
• 出 处: 中南大学学报：英文版
• 发表日期: 2016年2期
• 关键词: 预应力混凝土 损失计算 耦合模型 收缩徐变 松弛 预应力损失值 预应力筋 时变函数 prestress relaxation loss shrinkage
• 基金项目: Project（51551801） supported by the National Natural Science Foundation of China, Project（14JJ4062） supported by the Natural Science Foundation of Hunan Province, China

The calculation model for the relaxation loss of concrete mentioned in the Code for Design of Highway Reinforced Concrete and Prestressed Concrete Bridges and Culverts(JTG D62—2004) was modified according to experimental data. Time-varying relaxation loss