摘要
无粘结预应力混凝土结构的耐久性问题是无粘结预应力结构使用的关键问题,但是目前对无粘结预应力筋的防腐蚀研究还不完善,有待于深入和发展.文章介绍了国内外无粘结预应力混凝土结构的发展概况,指出结构使用环境引起的耐久性问题,分析了无粘结预应力筋腐蚀对钢绞线力学性能及结构性能的影响,提出无粘结预应力结构工程的防护与修复的方法与策略,最后指出了无粘结预应力混凝土结构存在的问题及今后的研究方向.
A brief review about development of unbonded prestressed concrete structure is presented,and then durability problems of the structure caused by environment attack are revealed.Effects of corrosion of the unbonded tendons on the mechanical behavior of the tendons and bearing capability of the structure are discussed.The paper emphasizes the corrosion protection and repair strategy of the unbonded prestressed concrete structure,and points out the existing problems and future research direction on the unbonded prestressed concrete structure.
出处
《徐州工程学院学报（社会科学版）》
2008年第2期19-23,共5页
Journal of Xuzhou Institute of Technology：Social Sciences Edition
基金
国家自然科学基金资助项目(50538087,50478100)
