A prestressed steel strand blanking and braiding bench

Abstract

The invention discloses a discharging weaving rack of a prestressed steel strand, and relates to the field of the prestressed beam component of bridge engineering post-tensioning method construction and building long span prestressed structure. The discharging weaving rack of the prestressed steel strand comprises an I-steel body platform, a feeding steel pipe, a cutting machine pedestal, comb-shaped teeth, a weaving device, a slot and a discharging span marking; the feeding steel pipe is welded in a I-steel channel at one end of the I-steel body platform; the side edge of one end of the I-steel body platform is welded with the cutting machine pedestal; the cutting machine pedestal is fixed with a cutting machine; a row of the comb-shaped teeth are welded in the I-steel channel of the I-steel body platform in every two meters, and the other end of the I-steel body platform is provided with the slot; the weaving device is arranged in the slot; and the discharging span marking is marked in the I-steel channel. The discharging weaving rack of the prestressed steel strand is capable of accurately discharging the steel strand, avoiding the pollution, smoothing the weaving (namely relatively fixing the steel strand position of each section in the pore passages during the weaving so as to ensure the straight of the steel strand), and immediately weaving in the pore passages.

Description

technical field [0001] The invention relates to the field of prestressed beam-slab components of bridge engineering constructed by post-tensioning method and large-span prestressed structures of buildings, in particular to a prestressed steel strand blanking and braiding stand. Background technique [0002] In bridge engineering and long-span structural engineering using prestressed post-tensioning method, when prefabricated beams and slabs (such as box girders, T beams, hollow slabs, etc.) and long-span components (such as cover beams, etc.) are prestressed, the construction technology is : Prefabrication of beams, slabs or components is reserved for prestressed tunnels. After the concrete strength reaches the strength requirements for prestressed tension, single-strand steel strands are cut, and then multi-strand steel strands are braided (the steel strands required by the design The number of strands), for the prestressed steel strand bundles that have been braided, the t...

AI Technical Summary

Problems solved by technology

In fact, the disadvantages of penetrating steel strands one by one are obvious. They are easy to be entangled with each other, and the more difficult to wear later, so they are generally used less; according to the tensioning process, in the overall tensioning process of a single bundle of steel strands, each Stranded steel strands are under tension at the same time, so the straightness of the steel strands is highly required, otherwise, it is easy to cause uneven stress on the steel strands, insufficient tension of individual steel strands, and excessive elongation , broken wires, etc.

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