摘要
双预应力混凝土梁是设有预压粗钢筋的预应力混凝土简支梁 ,其技术关键是预压钢筋的锚固系统。所研究的锚固系统是由高强螺母、钢锚板和锚固钢筋组成。 2根长度为 5 5m的梁试验和有限元法分析证明这种锚固系统是可靠的。
The anchorage system of post?compressed steel bar is the key technique in biprestressed concrete beams which are simply supported prestressed concrete beams with post?compressed steel bar.It is made up of anchorage steel plate,screw nut and anchorage steel bar.Two beams 5 5m long have been tested.Both the results of test and finite element analysis indicate that the anchorage system is reliable.This paper also introduces the stress losses of post?compressed steel bar and deflections of beams before and after anchorage.
出处
《公路交通科技》
EI
CAS
CSCD
北大核心
2000年第3期21-24,共4页
Journal of Highway and Transportation Research and Development
关键词
双预应力混凝土梁
预压钢筋
锚固
桥梁
Bi-presressed
Concrete beam
Pre-compressed steel bar
Anchorage
