Annular prestressed steel beam fixing device and construction method thereof: Fid-Bau Portal

Annular prestressed steel beam fixing device and construction method thereof

SU WEI / MOU ZHAOXIANG / MA GUANG / ZHANG LEI / LI ENLIANG

The invention discloses an annular prestress steel beam fixing device and a construction method thereof. The fixing device comprises a base steel plate support, a linear positioning plate, a steel belt fixing clamp, a steel beam end fixing device, a prestress pipeline, a hanging ring and a positioning steel bar penetrating hole, and the linear positioning plate is welded to the base steel plate support; the prestressed pipeline is fixed between the base steel plate support and the linear positioning plate through a steel belt fixing clamp, the prestressed steel beam penetrates through the prestressed pipeline, the two ends of the prestressed steel beam are fixed to the base steel plate support through steel beam end fixing devices, and a plurality of positioning steel bar penetrating holesare formed in the base steel plate support. Hanging rings are arranged at the top of the base steel plate supports. According to the invention, the strand pulling and curve positioning work of the prestressed steel strand can be completed on the ground, the overhead working time on the tower is greatly reduced, the construction difficulty is reduced, the working efficiency is improved, the construction quality is ensured, the structure is simple, the manufacturing cost is low, and the device can be recycled.

本发明公开了一种环形预应力钢束固定装置及其施工方法，固定装置包括底座钢板支架、线形定位板、钢带固定夹、钢束端头固定装置、预应力管道、吊环和定位钢筋穿过孔，所述线形定位板焊接于底座钢板支架上，所述预应力管道通过钢带固定夹固定于所述底座钢板支架与所述线形定位板之间，所述预应力钢束穿过所述预应力管道，两端通过钢束端头固定装置固定于底座钢板支架上，底座钢板支架上开设有若干定位钢筋穿过孔，底座钢板支架顶部设有吊环。本发明可以在地面完成预应力钢束的穿束和曲线定位工作，大幅减少了塔上高空作业时间、降低了施工难度、提升了工作效率并保证了施工质量，且结构简单，造价低，可以循环使用。

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