真空压浆是后张预应力混凝土结构施工中的一项新技术，已经越来越广泛地应用于工程实践中。
Prestressed construction technology of the box girder concrete of the bridge and the vacuum grouting technology;
将留后浇带预应力混凝土梁模拟为弹性支座梁，研究了留后浇带预应力混凝土结构施工期间的力学性能。
The structures are simulated as a beam with elastic bearing, then a model is proposed for the analysis of prestressed concrete structures with a strip of post pouring concrete during construction.
本文还针对预应力混凝土连续刚构桥和斜拉桥，分析计算了其在施工和运营阶段，混凝士徐变对桥梁结构的影响。
The influence of concrete creep on bridge structure under the construction and operation stage for prestressed concrete continuous rigid frame bridge and cable-stayed bridge is also analyzed.
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