It shows that the total loss is about 45 percent of the jacking stress in vertical tendons,and the losses due to anchorage deformation,retraction of tendons and joint compression constitute a large percentage of the total loss.

• 结果表明:就所研究的情形而言,实测竖向预应力总损失可达其初始张拉应力的45%25,锚具变形、钢筋回缩及接缝压缩等引起的损失占其总损失的53%25。