摘要
运用化学及结构振动原理,阐述了体外预应力筋腐蚀破坏机理,分析了体外预应力筋振动频率对梁正常使用的影响。在以上基础上,针对体外预应力混凝土结构在耐久性方面存在的问题,提出了体外预应力筋系统耐久性防护的技术措施。
Based on the theories of chemistry and ahsking structure, the corrosion and damage mechanism of externally prestressed tendons was addressed and the impact of vibration frequency of externally prestressed tendons on normal use of concrete beams was analyzed. On this basis of analyses, the technological measures to prevent the erosion of externally prestressed tendons and to improve the durability of concrete were commented aiming at the problems with the durability of externally prestressed tendons.
出处
《铁道科学与工程学报》
CAS
CSCD
北大核心
2007年第4期61-64,共4页
Journal of Railway Science and Engineering
关键词
预应力混凝土
体外预应力
耐久性
prestressed concrete
prestressed concrete with external tendons
durability
