随着预应力在桥梁施工中的普遍应用，预应力张拉控制已成为桥梁上部结构施工中的一道重要工序。
With the common application of prestress in bridge construction, the strain-pull controlling has become an important working procedure during the upper structure construction of bridge.
结合某高速公路先张法预应力空心梁板的现场施工，介绍了在预应力先张法梁板生产过程中的主要工序及其控制方法。
According to pretensioned prestressing concrete beam and slab construction in one express highway the master operations and controlling measures in the production are introduced.
结合工程实例，介绍大跨度预应力现浇箱梁托架法施工的关键工序、质量检测及控制。
An introduction is given to key construction flow, quality detection and quality control of bracket method for large span prestressed cantilever box beam cast in place.
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