Non-overturning welding method for steel arch box and non-overturning welding steel box arch

A welding method and technology for steel box arches, which are applied in the field of steel arch box manufacturing, can solve the problems of time-consuming, laborious, labor-intensive, equipment investment, and safety risks for steel box arch inversion welding, so as to reduce the difficulty of welding operations and reduce safety. Risk, the effect of ensuring welding quality

Pending Publication Date: 2021-12-10
CHINA RAILWAY BAOJI BRIDGE GRP
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Problems solved by technology

[0004] The technical problem solved by the present invention is to provide a non-turnover welding method for a steel arch box and a steel box arch without turning over welding, so as to realize the non-turnover welding production of the steel box arch; Solve the technical problems of time-consuming and labor-intensive welding of steel box arches, high safety risks, limited space, and excessive investment in equipment for prone welding

Method used

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  • Non-overturning welding method for steel arch box and non-overturning welding steel box arch
  • Non-overturning welding method for steel arch box and non-overturning welding steel box arch
  • Non-overturning welding method for steel arch box and non-overturning welding steel box arch

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Embodiment Construction

[0038] Below will combine the appended in the embodiment of the present invention Figure 6-15 , clearly and completely describe the technical solutions in the embodiments of the present invention, obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0039] (like Image 6 , Figure 15 Shown) steel arch box non-turnover welding method, comprises the following steps:

[0040] S001. Formulate a steel arch box welding plan. The welding scheme of the steel arch box formulated includes: firstly welding and fixing the inner web 4 with the corner wall panels 5 on the left and right sides respectively; The plate 6 is welded with the inner web 4, the lower corner wall plate 5, the top plate 1, and the bottom plate ...

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Abstract

The invention provides a non-overturning welding method for a steel arch box and a non-overturning welding steel box arch. The non-overturning welding method comprises the following steps: formulating a scheme, designing a welding groove, testing a welding process, optimizing and perfecting the welding groove, welding and assembling the steel arch box, and inspecting the welding groove. Welding manufacturing of the steel box arch is achieved; meanwhile, the improved welding groove design is adopted, upward welding is changed into downward welding, and the technical problems that labor, time and labor are wasted, the safety risk is large, the site is limited, and the equipment investment is too large during steel box arch overturning welding are solved; and on-site overturning-free all-position welding operation of the steel box arch is achieved, and the purposes of reducing cost, improving efficiency, reducing safety risks, reducing welding difficulty and improving welding quality are achieved.

Description

technical field [0001] The invention belongs to the technical field of steel arch box manufacturing, and in particular relates to a non-turnover welding method for a steel arch box and a steel box arch without turning over welding. Background technique [0002] Large-scale steel box arch segments are generally composed of roof 1, bottom 2, outer web 3, inner web 4, corner wall 5 and partition 6 to form an octagonal structure (see figure 1 ). Among them, when the tailor-welded connection of each component is made, due to the requirement of force, the edge and corner welds are generally required to adopt full penetration welds. Because the force transmission effect of the full penetration weld is good, but the welding requirements of the weld are high and the welding is difficult. Take the steel box arch section with a thickness of 36-60mm on the top and bottom plates and a thickness of 30-40mm on the corner wall plate 5 as an example: the design of the welding groove is rel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K31/02B23K37/04
CPCB23K31/02B23K37/0426
Inventor 裴雪峰薛长利车平刘治国张剑峰
Owner CHINA RAILWAY BAOJI BRIDGE GRP
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