Super-thick plate splicing method and lifting appliance

Abstract

The invention relates to the technical field of manufacturing of steel structure bridges and discloses a super-thick plate splicing method. The method comprises the following steps that a first super-thick plate to be spliced and a second super-thick plate to be spliced are calibrated; the splicing seam part of the first super-thick plate and the second super-thick plate is measured, and a first measurement value is obtained; the first super-thick plate is arranged on a scaffold and positioned; the second super-thick plate is transferred onto the scaffold through the lifting appliance, and the first super-thick plate and the second super-thick plate are spliced; first-time welding is carried out on the first super-thick plate and the second super-thick plate, and a second measurement value is obtained; the second measurement value and a deformation monitoring value are compared, and welding work is carried out according to a comparison result. The super-thick plate splicing method can solve the problems that in the super-thick plate assembling process in the prior art, super-thick plates are damaged by an adopted lifting appliance and a supporting seat, the calibration work difficulty is large after welding, and the process is complex.

Description

technical field [0001] The invention relates to the technical field of steel structure bridge manufacturing, in particular to a super-thick plate splicing method and a hanger. Background technique [0002] Since the 1980s, my country's steel structure has achieved unprecedented development, and steel structure occupies a very important position in national economic construction. Due to its many advantages, steel structure is widely used in technical fields such as construction and bridge manufacturing. At the same time, the ultra-thick plate of building steel structure and its splicing technology are also widely used. [0003] In the prior art, splicing of ultra-thick plates is generally assembled by horse-boards, and then welded. The lifting of ultra-thick plate parts is carried out by general lifting fixtures (such as tiger jaw clamps, etc.). [0004] In the process of implementing the technical solutions of the embodiments of the present application, the inventors of th...

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is the damage to the ultra-thick plate by the spreader and the horse plate used in the assembly process of the current ultra-thick plate, as well as the difficulty of post-welding correction work and the complicated process.

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