Steel sheet combined beam hole making and assembling method

An assembly method and composite beam technology, which is applied in the field of steel plate girder hole making, can solve the problems that the connection accuracy is difficult to guarantee, and cannot meet the requirements of the connection accuracy of the curved steel bridge manufacturing precision hole group, so as to achieve the effect of ensuring the hole making accuracy

Inactive Publication Date: 2019-04-19
CHINA RAILWAY BAOJI BRIDGE GRP
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AI Technical Summary

Problems solved by technology

It is difficult to guarantee the connection accuracy of the hole group of the rod
The existing technology can no longer meet the requirements of the manufacturing accuracy of the curved steel bridge and the connection accuracy of the hole group

Method used

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  • Steel sheet combined beam hole making and assembling method
  • Steel sheet combined beam hole making and assembling method
  • Steel sheet combined beam hole making and assembling method

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.

[0028] see Figure 1-6 , the invention provides a technical solution: a hole-making and assembling method for steel plate composite beams, which specifically includes the following steps:

[0029] Step 1. Making spliced ​​panels, including S1: steel plate rolls, which are cut and blanked by numerical control, and the process amount is reserved in the length direction when blanking, and the flatness is corrected to make spliced ​​panels 13.

[0030] S2: Draw t...

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Abstract

The invention discloses a steel sheet combined beam hole making and assembling method. The method comprises the following steps that a steel sheet rolled sheet is blanked through numerical control fine cutting, process allowance is reserved in the length direction in the blanking process, the flatness is corrected, and thus splicing sheets are manufactured; drilling subtended lines of the splicingsheets are drawn, high-precision drilling sample sheets are clamped, a radial drilling machine is used for drilling a hole group in one end of each splicing sheet, and the splicing sheets are markedwith part numbers and directions; and a hole group in the other end of each splicing sheet at the main beam joint pre-assembled and drilled, wherein the step comprises the following steps that a cross-end steel beam is integrally drilled by adopting a block body rear holing method, specifically, after first I-shaped beams are assembled into a block body, connecting hole groups on the two ends of the first I-shaped beams are drilled by adopting the rear holing method, and the first-section first I-shaped beam is placed on a leveled platform; the second I-shaped beam is placed on a correspondingplatform; after the I-shaped beams are adjusted in place, the splicing sheets are installed at the I-shaped beam joints, and mounting bolts and punching nails are used to fix the positions; and the above steps are repeated so as to complete mounting of pre-assembling of the splicing sheets at all the beam joints.

Description

technical field [0001] The invention relates to the technical field of steel plate beam hole making, in particular to a steel plate composite beam hole making and assembling method. Background technique [0002] At present, in the development of urban construction, urban steel bridges are generally built on rivers, roads and overpasses, overpasses and pedestrian bridges where roads cross highways and railways. It meets the needs of urban transportation and residents' travel, taking into account the requirements of aesthetics and flood control. [0003] Steel girder and steel cover beam manufacturing technology of curved steel-concrete combined bridge. Steel girders are divided into two structural forms: steel box composite beam and steel plate composite beam. The alignment and structure of this type of steel bridge are extremely complex, and the cross-section is a variable cross-section structure. The bottom plate and web plate connection between the steel main girder sec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 梁晶李军平张海峰薛宏强樊昕哲张鹏李太阳
Owner CHINA RAILWAY BAOJI BRIDGE GRP
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