预制梁场 precast beam field
预制梁构件 precastbeamunit
U形预制梁 U-shaped precast beam
倒T形预制梁 invertible T-shaped precast beam
u形预应力预制梁 u-shaped prestressed precast beam
倒T形预应力预制梁 invertible T-shaped prestressed precast beam
T型预制梁 T type precast beam
预制混凝土梁 precast concrete beam
预制箱梁 Precast box girder ; prefabricated box beam ; precast box beam
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.
采用起重机吊装预制梁，具有施工机具简单、易于操作、成本低、工期短、质量安全易于保证等优点。
Using crane to hoist and construct bridge is characteristic of simple in constructional machines, easy in operation, low in cost, short in construction time, safety and good quality.
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.
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