比较了有粘结与无粘结力筋两种预应力混凝土结构的优缺点。
Research on law of stress increment of unbonded tendons in continuous prestressed concrete beam and slab;
无粘结预应力筋摩擦力小，且易弯曲成各种形状，特别适合建造需用复杂的连续曲线配筋的大跨度楼盖和屋盖。
The tendons of unbounded PPC have smaller fraction force and are easier to bend to many shapes , so it is more suited for building these rooms whose span are large.
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