预应力屋架张拉工艺探讨

Probe into the Stretching Technique of Prestressed Roof Truss

讨论了图集《预应力混凝土折线形屋架》95G4 15 (九 )中 2 7m跨屋架碳素钢丝预应力筋的两端张拉问题 ;在工程施工中改两端张拉工艺为一端超张拉工艺 ,有利于保证工程质量 ,加快施工进度 ,同时降低工程造价。

This paper discussed the prestressed carbon steel_wire couple_end stretching of the twenty_seven meters span roof truss in the criterion 'The prestressed concrete segmental roof truss' 95G415(九). In practical engineering the couple_end stretching technique is substituted for one_end super_stretching technique, and it is useful to ensure the construction quality and quicken the construction tempo. Meanwhile, it is obvious that the engineering cost can be reduced.