主要针对预应力箱梁在预制过程中所须的内模，在结构形式、使用原理等方面进行了研究。
This article mainly aims at the internal mold used in the process of prefabricating box-girder and conducts researches on it's structural style, activity principle and so on.
那不是建设，而是一层一层组装预应力梁构件和预制造模块的过程。预制造的时间并没有算在建设工期内。
It is not building, but, assembling the prestressed beams or prefabricated moulds, floor by floor. Fabrication does not come into the time frame.
分析预制混凝土梁（板）在施加预应力时质量缺陷的原因及其对策。
The paper analyzes reasons for quality defects as the precast girder is prestressed and raises strategies for them.
结合工程实例介绍了装配式预应力空心板梁的集中预制的施工组织及工艺流程。
Combined with the engineering practice discussion is made on the construction technology and the process for the centralized prefabrication of prefabricated prestressed hollow girder beam.
分析了某预应力桥梁预制T梁施工裂缝产生的原因。
The cause of crack formation in construction of prefabricated t beams of a certain prestressed bridge is analysed.
后张无粘结预应力筋适用于大跨度、大开间建筑的现浇楼板、大荷载的预制梁及其他特种结构。
Post-tensioned unbonded Prestressed concrete bar is suitable for cast-in –Place concrete of Long –span and Wide buildings, Large load Prefabricated beam and other construction.
大型预制预应力混凝土箱梁架设中不同工况下的梁体应力满足设计要求是箱梁安全架设的关键。
The stress under different working modes is the key to the safe problem when erecting long span prestressed concrete box beam.
后张法预应力混凝土I形梁预制张拉时，易产生侧向位移，影响梁片的安装、使用和安全。
When the precast I beam is tensioned, the lateral displacement tends to take place and will affect the installation, application and safety of the beam.
后张法预应力混凝土I形梁预制张拉时，易产生侧向位移，影响梁片的安装、使用和安全。
When the precast I beam is tensioned, the lateral displacement tends to take place and will affect the installation, application and safety of the beam.
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