简述无粘结力筋预应力混凝土桥梁的发展历程

Development process of prestressed concrete bridges without conhensive bones

回顾了粘结预应力混凝土桥梁的发展历程。比较了有粘结与无粘结混凝土结构的优缺点．并指出无粘结预应力混凝土桥梁具有广阔的发展前景。

A brief review is given to the developing course of unboned prestressed concrete bridges. A comparison is made between the bonded prestressed concrete structure and the unbonded one with regard to their advantages and drawbacks. Then the authors pointed out that unbonded prestressed concrete bridges have a wide developing prospect.