Cold correction method for thin-wall steel member

A correction method and technology for steel components, applied in the field of steel structure construction, can solve problems such as inability to correct, heavy workload, and inability to guarantee quality.

Inactive Publication Date: 2020-11-13
中冶(上海)钢结构科技有限公司
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Features such as galvanized components and thin plates are not suitable for flame straightening; use cold straightening, because the deformed part cannot be placed on the platf

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Cold correction method for thin-wall steel member

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The present invention is further illustrated below by specific examples.

[0020] Such as figure 1 As shown, a cold correction method for thin-walled steel members, including

[0021] Step 1, making supporting tooling; including upper cross bar 1, lower cross bar 2, bottom bar 3, bolt 4, bolt hole 5, jack 6 and top plate 7;

[0022] in,

[0023] Both the upper cross bar 1 and the lower cross bar 2 are barb-shaped and are stuck on the component to prevent the lower flange of the component from moving upward when a force is applied to the component;

[0024] Bolt holes 5 are provided on the shafts of the upper cross bar 1 and the lower cross bar 2, and the bottom bar 3 is arranged between the upper cross bar 1 and the lower cross bar 2, and the bottom bar 3 is formed by inserting bolts 4 in different bolt holes 5. Make the opening between the upper crossbar 1 and the lower crossbar 2 adaptable to the width of different steel sections;

[0025] Step 2, erecting the jac...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to the field of steel structure construction, in particular to a cold correction method for a thin-wall steel member. The cold correction method for the thin-wall steel member ischaracterized by including the steps of manufacturing a supporting tool: the supporting tool comprises an upper cross rod, a lower cross rod, a bottom rod, a jack and a top plate, the upper cross rodand the lower cross rod are both barb-shaped and clamped on the member, and a bottom rod is arranged between the upper cross rod and the lower cross rod; erecting the jack: one end of the jack is temporarily spot-welded on the bottom rod, the jack is prevented from falling off accordingly, the other end of the jack is spot-welded to the steel member to be corrected, the jack is started to enablethe deformation part of the member to be corrected to be slowly changed from the convex side to the concave side, and when the deformation radian exceeds 1/2 of the original deformation radian, forceapplication is stopped. According to the cold correction method for the thin-wall steel member, a correction platform is not needed, gas is not needed, electricity is not used, mechanical equipment such as a crane and the like is not needed for assistance, the operation is simple, correction can be carried out by cooperation of two persons, the correction speed is high, and the deformation problemcan be solved in a member yard or an installation site.

Description

technical field [0001] The invention relates to the field of steel structure construction, in particular to a cold correction method for thin-walled steel components. Background technique [0002] In some projects, large-section H-shaped steel with thin webs often uses uncoiled plates (steel plate stress is large), and there is no rib plate at the end of the component (insufficient rigidity). After the component is hot-dip galvanized and heated (stress release), the deformation of the end web is quite serious. , the number of deformed components is also large. Common straightening methods for steel structures are flame straightening and cold straightening. Features such as galvanized components and thin plates are not suitable for flame straightening; use cold straightening, because the deformed part cannot be placed on the platform and there is no point of focus, so it cannot be corrected; or the main weld of the part is cut, and the steel plate is flattened and re Weldin...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B21D3/16
CPCB21D3/16
Inventor 陈阳马占君杨璐叶健王先平
Owner 中冶(上海)钢结构科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap