The system increases the bearing capacity of concrete, reducing its deformation and cracking decreases, thus increasing its life.
该系统增加了混凝土的承载力，这样既减少其变形和开裂，也增加了混凝土的使用寿命。
Thenew method for calculating bearing capacity of beams strengthened by prestressing method are out for-ward and it is coordinated with the code system.
对预应力加固梁的正截面及斜截面承载力提出了新的并与规范体系相协调的计算方法。
Curved box girder bridge is a complicated spatial structural system. The effect of prestressing may improve the bearing capacity of the members, but may also adversely affect the structure.
曲线箱形梁桥是空间复杂受力的结构体系，预应力效应一方面能提高构件的承载能力，另一方面也可能对结构带来一些不利的影响。
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