CN107893375A - The construction method of the U-shaped rib song arc of Steel Bridge is completed using Special mould - Google Patents
The construction method of the U-shaped rib song arc of Steel Bridge is completed using Special mould Download PDFInfo
- Publication number
- CN107893375A CN107893375A CN201711089380.0A CN201711089380A CN107893375A CN 107893375 A CN107893375 A CN 107893375A CN 201711089380 A CN201711089380 A CN 201711089380A CN 107893375 A CN107893375 A CN 107893375A
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- China
- Prior art keywords
- shaped rib
- bearing
- clamping device
- inner template
- jack
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The present invention relates to a kind of construction method that the U-shaped rib song arc of Steel Bridge is completed using Special mould, it is characterized in that：Special mould is made according to the length of U-shaped rib, Special mould is by bearing, clamping device, jack forms, plane welds jack force block according to the position distribution of U-shaped rib bending point on bearing, clamping device jack the U-shaped rib transverse shifting of promotion lower edge, in order to ensure that U-shaped rib is parallel with plane on bearing all the time, need on bearing plane and clamping device correspondence position welding guide rail；U-shaped rib to be curved is hung on bearing, it is clipped in each clamping device, promotes clamping device using jack on bearing, make whole single u-shaped rib prebuckling, reach required bending line style, robbed with baking and each section is heated entirely, yield deformation occurs for whole single u-shaped rib in the presence of additional stress, cools down one by one, deformation is set to be fixed up, after discharging external force, the deformation of whole single u-shaped rib can effectively ensure that the bending quality of U-shaped rib not in resilience.
Description
Technical field
Patent of the present invention is related to a kind of construction method that the U-shaped rib song arc of Steel Bridge is completed using Special mould, main to use
In structure steel fabrication field.
Background technology
U-shaped rib is the ribbed stiffener of floorings, is the important component in bridge, in Steel Bridge production field, often meets
To arc bridge section, U-shaped rib also bends camber therewith.U-shaped rib is in line shape when processing in itself, is needed in assembling it
Camber is bent, at present there has been no the plant equipment for specially bending U-shaped rib, therefore the method for flame heating can only be used manually curved
System, but due to U-shaped rib be opening and thickness of slab it is relatively thin, U-shaped rib local collapse phenomenon occurs during bending, can not bend
Go out qualified U-shaped rib.
The content of the invention
The purpose of patent of the present invention is to solve the one kind for being bent out qualified U-shaped rib using flame heated intraocular and being invented
Simple to operate, reliable in quality U-shaped rib bending method.
The purpose of the present invention is realized in the following ways：
Special mould is made according to the length of U-shaped rib and appearance and size, Special mould be by bearing, clamping device, it is very heavy
Top composition.Bearing is the rectangular frame structure platform formed by several hot rolled H-shaped spellings；Clamping device is by inner template and outer
Pressing mold forms.Inner template is by two pieces of risers to be matched with U-shaped rib Internal periphery size, two blocks of longitudinally connected plates and one piece of base
The overall structure that the weldering of plate group forms；Outer pressing mold is that three pieces longitudinally connected by two pieces of risers to be matched with U-shaped rib outer profile size
The overall structure that plate, two pieces of bedplates and the top plate group weldering of two pieces of end form.Plane both sides are according to U-shaped rib bending point on bearing
Position distribution welding jack force block, clamping device jack the U-shaped rib transverse shifting of promotion lower edge, in order to ensure
U-shaped rib is parallel with plane on platform all the time, and be not distorted phenomenon, need to the plane position weldering corresponding with clamping device on platform
Guide rail is connect, clamping device can be slided in guide rail without producing U-shaped rib twisted phenomena.
U-shaped rib to be curved is hung on platform when bending, is clipped in each clamping device, is promoted on platform using jack
Clamping device, make U-shaped rib prebuckling, reach required bending line style, at this moment each section of U-shaped rib bears bending stress,
Robbed with baking and a certain section is heated entirely, at this moment yield deformation occurs in the presence of additional stress for this section；With same side
Method heats at regular intervals to whole single u-shaped rib, cross sections is surrendered at high temperature, and cools down one by one, fixes deformation
Get off, after discharging external force, the deformation of whole single u-shaped rib can effectively ensure that the bending quality of U-shaped rib not in resilience.
It is an advantage of the invention that：The bending quality of U-shaped rib is can effectively ensure that using this construction method, saves later stage repairing
Time and expense, improve production efficiency.
Brief description of the drawings
Fig. 1 is the use state figure of patent of the present invention.
Fig. 2 is Fig. 1 A-A profiles.
Fig. 3 is Fig. 2 B-B profiles.
Referring to the drawings 1,2,3, patent of the present invention includes bearing 1, force block 2, jack 3, connecting bolt 4, outer pressing mold
The longitudinally connected plate 8 of riser 5, inner template riser 6, workpiece 7, outer pressing mold, outer pressing mold top plate 9, the longitudinally connected plate 10 of inner template, internal model
Plate bottom plate 11, external pressure baffle plate 12, guide rail 13, connecting bolt 14.
Embodiment
1st, it is by several hot rolling H to make bearing 1 and clamping device, bearing 1 according to the length of U-shaped rib and appearance and size first
The Frame-structured Platform that the weldering of shaped steel group forms；Clamping device is made up of inner template and external pressure mould, and inner template and outer pressing mold are adopted
Formed with steel plate cutting, inner template is by two pieces of risers 6 to be matched with U-shaped rib Internal periphery size and two blocks of longitudinally connected plates 10
And the overall structure that one piece of bedplate, 11 groups of welderings form；Outer pressing mold is by two pieces of risers to be matched with U-shaped rib outer profile size
5, three blocks of longitudinally connected plates 8, the overall structure that two pieces of bedplates 12 and two pieces of termination, 9 groups of welderings of top plate form.
2 and then the Plane Installation guide rail 13 on bearing 1, guide rail 13 is fixed with bearing 1 using connecting bolt 14；By a group weldering
Form inner template push-in guide rail 13 in, move forward and backward inner template, check inner template in guide rail 13 whether freedom of movement；By work
Part 7 is put into inner template, and the outer pressing mold that group weldering forms is placed on workpiece 7, consolidated inner template and outer pressing mold using connecting bolt 4
It is scheduled on together, workpiece 7 is killed.
3rd, finally the glide direction of flat guide 13 installs force block 2 on bearing 1, and force block 2 is by steel plate group
The T-type structure formed is welded, force block 2 is used with bearing 1 and is welded to connect；By jack 3 be put into force block 2 and top plate 8 it
Between.
4th, by that analogy, Special mould is arranged according to the bending distributed point of U-shaped rib, promotes top plate 8 using jack 3, make
The prebuckling of workpiece 7, reach required bending line style, at this moment 7 each section of workpiece bears bending stress, is robbed with baking to a certain
Section heats entirely, and at this moment yield deformation occurs in the presence of additional stress for this section；One is pressed to workpiece 7 with same method
Fixed interval is heated, and cross sections is surrendered at high temperature, and is cooled down one by one, deformation is fixed up, after discharging external force, work
The deformation of part 7 in resilience, not can effectively ensure that the bending quality of workpiece 7.
Claims (3)
1. the construction method of the U-shaped rib song arc of Steel Bridge is completed using Special mould, it is characterized in that：According to the length of U-shaped rib and outside
It is the Frame-structured Platform formed by several hot rolled H-shaped group of welderings that shape size, which makes bearing and clamping device, bearing,；Clamping device
It is made up of inner template and external pressure mould, inner template and outer pressing mold are formed using steel plate cutting, and inner template is by two pieces and U-shaped rib
The overall structure that the riser and two blocks of longitudinally connected plates and one piece of bedplate group weldering that Internal periphery size matches form；Outer pressing mold is
By two pieces of risers to be matched with U-shaped rib outer profile size, three blocks of longitudinally connected plates, two pieces of bedplates and two pieces of termination top plate group
Weld the overall structure formed.
2. the Plane Installation guide rail on bearing, guide rail is fixed with bearing using connecting bolt；Inner template is pushed into guide rail, it is front and rear
Mobile inner template, check inner template in guide rail whether freedom of movement；Put the workpiece in inner template, outer pressing mold is placed on workpiece
On, inner template and outer pressing mold are fixed together using connecting bolt, workpiece is killed.
3. the glide direction installation force block of flat guide on bearing, force block is the T junction formed by the weldering of steel plate group
Structure, force block are used with bearing and are welded to connect；Jack is put between force block and top plate, is promoted and pushed up using jack
Plate, make workpiece prebuckling, reach required bending line style, robbed with baking and a certain section is heated entirely, at this moment this section is attached
Add and yield deformation occurs in the presence of stress.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711089380.0A CN107893375A (en) | 2017-11-07 | 2017-11-07 | The construction method of the U-shaped rib song arc of Steel Bridge is completed using Special mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711089380.0A CN107893375A (en) | 2017-11-07 | 2017-11-07 | The construction method of the U-shaped rib song arc of Steel Bridge is completed using Special mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107893375A true CN107893375A (en) | 2018-04-10 |
Family
ID=61804196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711089380.0A Pending CN107893375A (en) | 2017-11-07 | 2017-11-07 | The construction method of the U-shaped rib song arc of Steel Bridge is completed using Special mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107893375A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990032621A (en) * | 1997-10-20 | 1999-05-15 | 정몽규 | U-shaped bending die |
| CN101574714A (en) * | 2009-06-25 | 2009-11-11 | 武昌船舶重工有限责任公司 | Method for bending and processing U rib |
| CN202380402U (en) * | 2011-11-26 | 2012-08-15 | 江苏中泰桥梁钢构股份有限公司 | Mould bed structure for assembling orthogonal bridge deck in codeless manner |
| CN102886399A (en) * | 2012-10-25 | 2013-01-23 | 盈都桥梁钢构工程有限公司 | Method for fire tube bending of steel tube arch bridge |
| CN103008933A (en) * | 2012-12-18 | 2013-04-03 | 中铁山桥集团有限公司 | Automatic assembling and tack welding system for U-shaped rib plate units |
| CN103357720A (en) * | 2013-06-19 | 2013-10-23 | 海波重型工程科技股份有限公司 | Method for bending bridge U-shaped rib in ignition general yield manner by adopting special clamping device |
-
2017
- 2017-11-07 CN CN201711089380.0A patent/CN107893375A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990032621A (en) * | 1997-10-20 | 1999-05-15 | 정몽규 | U-shaped bending die |
| CN101574714A (en) * | 2009-06-25 | 2009-11-11 | 武昌船舶重工有限责任公司 | Method for bending and processing U rib |
| CN202380402U (en) * | 2011-11-26 | 2012-08-15 | 江苏中泰桥梁钢构股份有限公司 | Mould bed structure for assembling orthogonal bridge deck in codeless manner |
| CN102886399A (en) * | 2012-10-25 | 2013-01-23 | 盈都桥梁钢构工程有限公司 | Method for fire tube bending of steel tube arch bridge |
| CN103008933A (en) * | 2012-12-18 | 2013-04-03 | 中铁山桥集团有限公司 | Automatic assembling and tack welding system for U-shaped rib plate units |
| CN103357720A (en) * | 2013-06-19 | 2013-10-23 | 海波重型工程科技股份有限公司 | Method for bending bridge U-shaped rib in ignition general yield manner by adopting special clamping device |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180410 |