同时，对单向悬臂浇筑施工桥梁合拢梁体的预应力体系转换和临时体外预应力束的布设原理做了阐述。
The conversion of the prestressed system and the layout of the temporary external prestressed tendons for the joined sections of the bridge are also expounded.
该改造工程不需要对预应力钢筋二次张拉和对结构进行临时支撑，因而明显地缩短了施工周期并节省了工程费用。
Using this new technology, there needs no the second tensioning of the prestressing tendons and temporary braces, thus the construction period and cost can be cut down obviously.
根据弹性变形的可恢复特性，提出一种利用临时预应力钢束放松时产生的弹性恢复变形，来减小由于混凝土弹性压缩引起的预应力损失的方法。
In this paper, a method is given for reducing the prestress loss caused by elastic compression of concrete by using the recoverable property of elastic deformation.
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