Reinforcing construction method and device for large-section high-web end formwork of suspension grouting beam

Abstract

The invention provides a construction method and device for reinforcing a large-section high web end template of a suspension grouting beam, and the method comprises the steps: arranging a pull rod at the end of an inner template and the end of an outer template, fixing and locking the two ends of the pull rod through pull rod holes in the template by adopting nuts, and arranging two triangular wedge-shaped block supporting pads at the inner side of the pull rod, the side face of the triangular wedge block is provided with a through hole for a pin shaft to penetrate through, the thickness can be conveniently adjusted by adjusting the meshing position of the inclined faces, a long screw rod is matched with a lock nut for locking, the construction method and device reduce the requirements for construction personnel and construction materials to the maximum extent, the construction efficiency is remarkably improved, and the construction cost is reduced. And meanwhile, the defects that in welding operation, the high-altitude welding risk is large, main steel bars and inner and outer formworks are burnt, and mounting and dismounting are not convenient are completely overcome, the formwork can be dismounted and recycled after construction is completed, and the formwork has the remarkable advantages in the aspects of economy, convenience, safety and the like.

Description

technical field [0001] The invention relates to a construction method and a device for reinforcing a formwork at the end of a large-section high-web plate of a suspension-irrigated beam, belonging to the technical field of suspension-irrigation and pouring in bridge construction. Background technique [0002] The low tower cable-stayed bridge, also known as "partial cable-stayed bridge", is a new bridge structure between continuous girder bridges and cable-stayed bridges. Because it has the characteristics of both cable-stayed bridges and continuous girder bridges It has the advantages of economy, beautiful appearance, high rigidity, convenient construction, etc. It has good development potential and has been fully applied in the construction of high-speed railways. The beams of some cable-stayed bridges are generally concrete beams, the section size of the segments is large, and the end formwork is generally made of 5cm steel plates, and the reinforcement methods are not un...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the deficiencies of the prior art, the present invention provides a construction method and device for strengthening the formwork at the end of the high web plate of the large section of the suspended irrigation beam. The tie rods are arranged at the ends of the inner and outer formworks, and the tie rods pass through the tie rod holes on the formwork. The two ends are fixed and locked by nuts, and at the same time, two triangular wedge pads are set on the inner side of the pull rod. The side of the triangular wedge is provided with a through hole for the pin shaft, which is convenient for adjusting the thickness by adjusting the occlusal position of the inclined surface. The long screw is used to cooperate. The lock nut is locked. This construction method and device minimizes the demand for construction personnel and construction materials, significantly improves the construction efficiency, and also completely avoids the high-altitude welding risk and the burning of the main steel bars and inner parts in the welding operation. Outer formwork, inconvenient installation and disassembly and other shortcomings, can be disassembled and used after construction, which has significant advantages in terms of economy, convenience and safety.

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