大跨度预应力混凝结构一端张拉与测试

Tension and measurement at single end of long-span prestress-component

大跨度预应力混凝端张拉为控制预应力混凝土摩擦损失的影响在预应力张拉过程对孔道摩擦应力损失进行实测与分析，证实一端张拉的可行性。

Tension at single end of long - span prestress -conerete component, in order to control trictional loss of the prestress -conerete, we take practical measurement and analyses this duct friclional stress loos, we think the method tension at single end is available.