摘要
基于缓黏结预应力混凝土两跨连续梁的受弯试验研究,将4根缓黏结预应力混凝土两跨连续梁分为30 d龄期与90 d龄期两组进行加载,并与无黏结预应力混凝土连续梁和有黏结预应力混凝土连续梁进行对比。通过对裂缝间距进行统计分析,得出结论:不同龄期缓黏结预应力混凝土连续梁其裂缝间距不仅基本相同呈现正态分布,而且不同龄期分别表现出与无黏结预应力混凝土构件和有黏结预应力混凝土构件相同的受力特性。
On the basis of experimental study on bending the retard-bonded prestressed concrete two-span continuous beam,separate 4 retard-bonded prestressed concrete two-span continuous beam to 30 days curing aged and 90 days curing aged,two groups load respectively, then contrasted with unbonded prestressed concrete continuous beam and bonded prestressed concrete continuous beam, according to analyzing the crack spacing, conclusion that ：the crack spacing of different ages retard-bonded prestressed concrete continuous beam show normal distribution,and also show the same force characteristics with unbonded prestressed concrete members and bonded prestressed concrete members in different ages,
出处
《混凝土》
CAS
CSCD
北大核心
2012年第2期138-141,共4页
Concrete
基金
广西重点实验室基金桂科能(07109005-16)
桂林市科学研究与技术开发项目(20080617)
关键词
缓黏结
预应力混凝土
试验研究
裂缝间距
retard-bonded
prestressed concrete
experimental
studies
crock spacing
