Negative bending moment steel strand threading tool and its application method

Abstract

The invention discloses a hogging moment steel strand bundle penetrating tool and a use method thereof. A pull handle is fixedly connected to the upper end of a pull rod. The pull handle and the end of the pull rod are fixedly connected to form a T-shaped structure. An inner transverse clamping body and an outer transverse clamping body which are parallel are connected to the lower end position of the pull rod, a locating friction plate is movably and rotationally connected to the position, close to one side of the pull handle, of the inner transverse clamping body, an arc-shaped groove is formed in the locating friction plate, the axial arc surface of the arc-shaped groove is perpendicular to the inner transverse clamping body, and the interval distance for bundle penetrating construction operation conducted after the arc-shaped groove of the locating friction plate and a steel strand are clamped and located is reserved between the two transverse clamping bodies. By the adoption of the tool, the safety and reliability of a person conducting bundle penetrating construction operation above a pier are improved, bundle penetrating construction operation is safer and more reliable, and the tool is simple, capable of saving time and labor and higher in bundle penetrating efficiency. The phenomenon that palms or other portions of the body of a constructor are scratched and hurt is avoided, bundle penetrating construction operation is safer, more reliable and more effective, and more time and labor are saved.

Description

technical field [0001] The invention relates to a steel strand threading tool, in particular to a negative moment steel strand threading tool used in the pier top negative moment steel strand threading construction and a use method thereof. Background technique [0002] When carrying out negative bending moment construction on the existing pier top, manual beam threading construction is often used, that is, first, the steel strand needs to be threaded into the corrugated pipe opening reserved for the negative moment crossing beam plate at one end, and then the steel strand is continuously threaded into the reserved bellows of the beam body, and then thread the external steel strands back into the opposite bellows at the end of the other span beam plate of the beam body that is aligned with the mouth of the penetrated bellows to realize the return of the steel strands. Thread through the beam until the reserved length of the steel strands at both ends of the pier meets the de...

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Problems solved by technology

[0003] The present invention aims to solve the problem that safety accidents are likely to occur due to high-altitude fall in the construction process of the existing roof during the negative bending moment steel strand threading construction, and the threading construction is time-consuming and laborious, the efficiency of the threading construction is low, and the cost of the threading construction is high. The potential safety hazards of beam threading construction are serious, directly affecting the life safety of beam threading construction workers and other current situations, and the current situation provides a method that can change the beam threading construction position, making the beam threading construction operation safer and more reliable, simpler, time-saving and labor-saving, and more efficient in beam threading. Higher negative bending moment steel strand threading tool and method of use thereof

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