The process of prestressing consists in applying forces to the concrete structure by stressing tendons relative to the concrete member.
预应力全过程主要包括通过向与混凝土构件有关的筋施压从而达到向整合混凝土结构施加压力的目的。
Additionally, the difference of total effect and secondary forces due to prestressing tendons under two kinds of boundary conditions is given.
另外，分析比较了一座直线多室箱梁桥在不同支承方式下恒活载效应、预应力效应、次反力和二次内力的异同。
"Prestress" is used globally to name all the permanent effects of the prestressing process, which comprise internal forces in the sections and deformations of the structure.
“预应力”是全世界通用来描述所有预应力全过程的永久效应的术语，包括截面的内力和结构的变形。其他预应力方式在本标准中不予考虑。
Prestressing also increases the resistance to shear forces, and in some cases reduces the amount of reinforcement required to resist shear.
预应力也可以提高抗剪能力。在某些情况可以减少为了抗剪而需要的预加应力值。(没有听过为了提高抗剪加预应力的。能举个例子？，学习中)。
Prestressing also increases the resistance to shear forces, and in some cases reduces the amount of reinforcement required to resist shear.
预应力也可以提高抗剪能力。在某些情况可以减少为了抗剪而需要的预加应力值。(没有听过为了提高抗剪加预应力的。能举个例子？，学习中)。
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