本发明还提供一种对应的预制混凝土梁制备方法。
The invention also provides a fabricating method of the precast concrete beam.
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.
箱梁的预制是钢筋混凝土斜拉桥施工中的重要环节，它直接影响到主桥施工的吊装进度和拼装精度。
To prefabricate box-girder is important in concrete cable-stayed bridge construction, it affects directly the main bridge construction of assembly progress and packing accuracy.
使用预制钢筋混凝土梁或者现浇钢筋混凝土板会很容易将两侧地下连续墙的跨度空间连接起来，从而完成隧道的主壳。
The span between two such diaphragm walls can easily be bridged with precast reinforced concrete beams or a cast in-site reinforced concrete slab to complete the main shell of the tunnel.
沪闵高架工程预制节段梁采用蒸汽养护的工艺，使混凝土早期强度增长，满足了施工进度要求。
The application of steam curing process for precast segmental beams of Humin Elevated Project has increased the early strength of concrete and met the requirements of construction progress.
公路桥梁预制钢筋混凝土板梁施工中，底模的制作及脱模是关键。
Fabricating and demoulding of the base mould is a key during the course of construction for precast plate girder of highway bridge.
介绍了高原高寒地区预制桥梁施工过程中混凝土施工、梁体养护、张拉压浆等的质量控制技术。
The paper introduces quality control technologies for concreting work, curing of beams, stretching and pressure grouting in the course of bridge precasting in the frigid plateau region.
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.
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.
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.
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