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Construction method for butt welding irregular space box-type steel members

A construction method and technology for steel components, applied in welding equipment, manufacturing tools, metal processing equipment, etc., can solve problems such as uneven welding positions and easy deformation of box-shaped steel components, so as to eliminate welding stress, improve welding quality, and reduce welding stress. effect of difficulty

Inactive Publication Date: 2011-06-15
CHINA CONSTR EIGHT ENG DIV CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a construction method for butt welding of box-shaped steel members in special-shaped space, so as to solve the problems of easy deformation and uneven welding position during butt welding of box-shaped steel members

Method used

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  • Construction method for butt welding irregular space box-type steel members
  • Construction method for butt welding irregular space box-type steel members
  • Construction method for butt welding irregular space box-type steel members

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 2 As shown, the butt welding construction method of the special-shaped space box steel member in this embodiment includes the following steps:

[0035] S201, opening at least one process hole on the upper flange at the welding position.

[0036] S202, butt the two sections of steel members.

[0037] S203, enter the inside of the box body of the steel member from the process hole, and adopt a segmented symmetrical welding method to weld the butt joint position of the lower wing plate and the rib plate.

[0038] S204, use symmetrical welding on the outside of the box body of the steel member, and weld the butt joint position of the side plate.

[0039] S205, welding a cover plate on the process hole.

[0040] Please refer to image 3 with Figure 4 , image 3 is a schematic diagram of the butt joint of two steel members, Figure 4 yes image 3 Sectional view of position 2-2 in the center. Depend on image 3 It can be seen that there are many ribs...

Embodiment 2

[0045] Such as Figure 5 As shown, the butt welding construction method of the special-shaped space box steel member in this embodiment includes the following steps:

[0046] S501, set connecting plates on two sections of steel members respectively.

[0047] S502, respectively position the welded horse plate at the joint position of the two sections of steel members.

[0048] S503, opening at least one process hole on the upper flange at the welding position.

[0049] S504, use the horse board to butt the two sections of steel members, and ensure that the connection of the two sections of steel members is consistent.

[0050] S505, Welding together connecting plates on two sections of steel members.

[0051] S506, add a copper backing plate at the bottom of the welding position of the lower wing plate.

[0052] S507, preheating the butt joint position of the two sections of steel components.

[0053] S508, enter the inside of the box body of the steel member from the proces...

Embodiment 3

[0074] Such as Figure 8 As shown, the butt welding construction method of the special-shaped space box steel member in this embodiment includes the following steps:

[0075] S801, opening at least one process hole on the upper flange at the welding position.

[0076] S802, opening at least one side hole on the side plate.

[0077] S803, butt joint two sections of steel members.

[0078] S804, enter the inside of the box body of the steel member from the process hole, and adopt a segmented symmetrical welding method to weld the butt joint position of the lower wing plate and the rib plate.

[0079] In S805, symmetrical welding is adopted on the outside of the box body of the steel member, and the butt joint position of the side plate is welded.

[0080] S806, welding a cover plate on the process hole.

[0081] S807, enter the inside of the box body of the steel member from the side hole, and weld the butt ribs at the position of the process hole.

[0082] Compared with Em...

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Abstract

The invention provides a construction method for butt welding irregular space box-type steel members, comprising the following steps of: (1) mounting at least a fabrication hole at an upper wing plate at a welding position; (2) butting two sections of the steel members; (3) entering into the box of the steel box from the fabrication hole, and welding butting positions of a lower wing plate and ribs by means of sectional and symmetrical welding; (4) welding the butting positions of side plates at the external part of the box of the steel box by means of symmetrical welding; and (5) welding a cover plate on the fabrication hole. The construction method provided by the invention is convenient in operation, and capable of removing welding stress and improving welding quality.

Description

technical field [0001] The invention relates to the field of building construction, in particular to a butt welding construction method of a special-shaped space box-shaped steel structure. Background technique [0002] For ultra-long box-shaped steel members, it is usually made in sections and then butt welded. See figure 1 , which is a schematic cross-sectional view of a box-shaped steel member. This box-shaped steel member consists of an upper wing 11, a lower wing 12 and two side plates 13. In order to strengthen the structural strength, the upper wing 11 and the lower wing 12 is welded with longitudinal ribs 14. However, there are some problems in the butt welding of this box-shaped steel member: [0003] 1. During welding, due to the complex structure of the box-shaped components, there are many internal ribs, and there are many parts that need to be welded during the butt joint, the components will be easily deformed by stress due to heating, and when the component...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K31/00
Inventor 唐际宇戈祥林蔡玉龙杨啸磊黄贵唐峰霍福金李钦兴
Owner CHINA CONSTR EIGHT ENG DIV CORP LTD
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