long-span prestressed beam string pipe 大跨度预应力张弦式管道
long span prestressed concrete beam 大跨度预应力混凝土梁
long-span prestressed concrete beam bridges 大跨预应力混凝土梁桥
Then the gray system theory is applied in the construction control of long-span prestressed concrete continuous beam bridge.
从而将灰色系统理论成功应用到大跨度预应力砼连续梁桥的施工控制中。
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.
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。
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。
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