CN107009097A - The preparation method of large-scale bending steel stair - Google Patents
The preparation method of large-scale bending steel stair Download PDFInfo
- Publication number
- CN107009097A CN107009097A CN201710291383.6A CN201710291383A CN107009097A CN 107009097 A CN107009097 A CN 107009097A CN 201710291383 A CN201710291383 A CN 201710291383A CN 107009097 A CN107009097 A CN 107009097A
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- China
- Prior art keywords
- wallboard
- assembling
- bending
- jig frame
- terraced beam
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Steps, Ramps, And Handrails (AREA)
Abstract
The present invention relates to steel structure stairway field, specifically a kind of preparation method of large-scale bending steel stair；It is characterized in that：Expansion setting-out and blanking including distorting box-shaped wallboard, the processing of cambered wallboard；The shaping detection of cambered wallboard；Set up assembling jig frame；Wallboard is positioned；Box ladder beam assembling positioning；Terraced beam assembling is carried out on assembling jig frame；Terraced beam is carried out to mark time assembling；Remove assembling jig frame.This preparation method is controlled in the blanking stage by the shape to arc fold bending plate, pass through the application to profiling moulding bed, ensure that the precision of bending component meets building requirements, it ensure that the precision controlling for the irregular steel member installed for high-altitude, during component preassembling, the three-dimensional localization that passes through and verification process repeatedly, it is ensured that the precision controlling of irregular element bending in space, it is ensured that the accuracy of steel member.Simultaneously by preassembling, the conjugation that bending component splices node is verified, construction quality can be effectively ensured.
Description
Technical field
The present invention relates to steel structure support seat field, specifically a kind of preparation method of large-scale bending steel stair.
Background technology
Making for bending steel stair needs to meet to require：1st, the irregular positioning in space is met；2nd, terraced beam
The deformation in welding process and the factor such as contraction are considered before number material；3rd, mark time needs to set up building according to location data before welding
Terraced moulding bed, finds out being accurately positioned for stair step in space；4th, when bending steel stair is installed, it need to be carried out before dispatching from the factory pre-splicing
Dress, checks that the data after the conjugation of assembled overall dimensions and interface, compound splicing meet building requirements.As can be seen here, bending
No matter there is the problem of needing to be accurately positioned during manufacture or even assembly in steel stair.
The content of the invention
It is an object of the present invention to provide a kind of preparation method of large-scale bending steel stair, it has can be quick and precisely
The advantage of positioning.
In order to achieve the above object, the present invention is realized in：
A kind of preparation method of large-scale bending steel stair, including
Step 1, the expansion setting-out for distorting box-shaped wallboard and blanking,
The processing of step 2, cambered wallboard；
The shaping detection of step 3, cambered wallboard；
Wherein, the shape of the arc fold bending plate after blanking, bending point coordinates are proofreaded；
Step 4, set up assembling jig frame；
Step 5, wallboard positioning；
The terraced beam assembling positioning of step 6, box；
Wherein, the terraced beam of wallboard and box is placed on assembling jig frame, by moulding bed to the plate that is irregularly distorted in space
Every location data is checked；
Step 7, the terraced beam assembling of progress on assembling jig frame；
Step 8, carry out terraced beam and mark time assembling；
Step 9, dismounting assembling jig frame.
The preparation method of the terraced beam of described large-scale bending steel stair, assembling jig frame calculates terraced beam by computer software design
Space coordinate, marks projection line, tongue and groove line, spacer lines etc. and sets up moulding bed positioning, and be made with section bar.
The preparation method of described large-scale bending steel stair, assembling jig frame calculates bending stair by computer software design
Space coordinate and crucial control projection, it is determined that terraced beam and space orientation of marking time are assembled.
This preparation method is controlled in the blanking stage by the shape to arc fold bending plate, to ensure the structure of multi-angle box beam
Part size it is accurate.In the production phase, by the application to profiling moulding bed, effectively solve for irregularly being distorted in space
Every location data problem of component, it is ensured that the precision of bending component meets building requirements, it is ensured that installed not for high-altitude
The precision controlling of regular steel member.Finally, during component preassembling, the three-dimensional localization that passes through and verification process repeatedly,
Ensure the precision controlling of irregular element bending in space, it is ensured that the accuracy of steel member.Simultaneously by preassembling, verify
Bending component splices the conjugation of node, can effectively ensure construction quality.
Embodiment
The present invention is further illustrated below by way of specific embodiment.
A kind of preparation method of large-scale bending steel stair, including
Step 1, the expansion setting-out for distorting box-shaped wallboard and blanking；
Box-shaped ladder four pieces of wallboards of beam are space bending shape, and bending curvature is larger, for control setting-out blanking accuracy, wallboard
Expansion is even more important.According to the air coordinates of steel twisted box-section element, four crest lines of bending box component are made, so as to
Any air coordinates on to wallboard, carries out the automatic expansion to wallboard, and can generate simultaneously in casing according to software program
Then the ribbed stiffener installation site line in portion, thus can input numerical control cutting according to the line style data of expansion by wallboard cutting data
Cutting mill carries out the blanking cutting of wallboard.
The processing of step 2, cambered wallboard；
（1）Before wallboard segmental machining, it is necessary to marked on wallboard shape compacting line and casing assembling normal direction control line, into
Detection datum line after shape processing, processing compacting line is set according to the linear angle of wallboard end face parallel to end face is linear every 100mm
Put, processing compacting line be must assure that correctly, and be inspected for acceptance through experienced inspector, and shaping will be produced when otherwise processing
Raw counter productive, and the detection datum line after forming is a camber line, should be refuted according to setting out data to wallboard, wallboard processing
This detection datum line should turn into a straight line naturally after shaping.
（2）Wallboard forming carries out cold presswork shaping using three rolls plate bending machine and hydraulic press, as much as possible subtracts
Few destruction of the heat processing and forming to steel plate, when wallboard is processed, the fillet that pressing mold should be selected appropriate, in case panel surfaces occur substantially
Impression, then carry out suppressing the shaping of wallboard by the compressing processing line on wallboard, should be from one end to another during compacting
End is progressively carried out, and is measured with angular templet, in order to avoid compacting is excessive, repeats the compacting to wallboard in this approach, directly
Required to reaching to form
The shaping detection of step 3, cambered wallboard；
In order to ensure that bending box component can preferably ensure assembly precision in assembling, wallboard must be carried out once after processing
Detailed detection, detection carries out complete detection using special sample case, and sample case is according to the linear carry out 1 of actual distortion of wallboard：1 system
Make, the warp surface of wallboard is truly showed in three dimensions, as long as sample case put during detection on wallboard after processing,
The profile sideline of positioning distortion wallboard is checked that the gap of sample case surface each point and wallboard should be controlled within 2mm, no
It should then be processed again, wallboard surplus carries out mowing according to sample case appearance and size.
Wherein, the shape of the arc fold bending plate after blanking, bending point coordinates are proofreaded；
Step 4, set up assembling jig frame；
Wallboard projection line, spacer lines, end face tongue and groove line, the moulding bed position line are first marked in assembled region；Then moulding bed template is set up,
Coordinate measurement is carried out to moulding bed template.
Step 5, wallboard positioning；
After moulding bed is provided with, cambered wallboard is hung on into moulding bed, according to wallboard projection line, spacer lines, end face tongue and groove line, moulding bed position
Line is put to position wallboard.
The terraced beam assembling positioning of step 6, box；
The good edge of a wing flat section of two pieces of assembly weldings is hung on into progress assembling positioning, positioning is must be noted that flange plate relative
Position and the relative position of dividing plate, and flange plate perpendicularity, it is fixed while to ensure the groove gap between flange plate and wallboard
The docking of diaphragm plate and the angle articulation of side plate are carried out behind position, local correction is carried out after welding, and inside is cleared up.
Wherein, the terraced beam of wallboard and box is placed on assembling jig frame, by moulding bed to the plate that is irregularly distorted in space
Every location data of part is checked；
Step 7, the terraced beam assembling of progress on assembling jig frame；
It is first that bottom plate is levelling using spirit level, according to nine grids datagram 1:1 puts ground sample, finds out curved stairs CCP
Subpoint（No less than 5 points）, shaped steel fulcrum is erect using the Z-direction coordinate value of subpoint, then by the bottom plate spot welding of the terraced beam of box
It is welded on vertical moulding bed, then by the web of the terraced beam of box according to box beam bottom plate arc tendency point on bottom plate.
Step 8, carry out terraced beam and mark time assembling；
Overall dimensions are first checked, finally by stair step under using instruments such as plumb bobs according to projection line of marking time in assembled region
Supreme progressively point is welded between terraced beam.
Step 9, dismounting assembling jig frame.
The preparation method of the terraced beam of described large-scale bending steel stair, assembling jig frame calculates terraced beam by computer software design
Space coordinate, marks projection line, tongue and groove line, spacer lines etc. and sets up moulding bed positioning, and be made with section bar.
The preparation method of described large-scale bending steel stair, assembling jig frame calculates bending stair by computer software design
Space coordinate and crucial control projection, it is determined that terraced beam and space orientation of marking time are assembled.
This preparation method is controlled in the blanking stage by the shape to arc fold bending plate, to ensure the structure of multi-angle box beam
Part size it is accurate.In the production phase, by the application to moulding bed, effectively solve for irregular twisted component in space
Every location data problem, it is ensured that the precision of bending component meets building requirements, it is ensured that for high-altitude install it is irregular
The precision controlling of steel member.Finally, during component preassembling, the three-dimensional localization that passes through and verification process repeatedly, it is ensured that
The precision controlling of irregular element bending in space, it is ensured that the accuracy of steel member.Simultaneously by preassembling, bending is verified
Component splices the conjugation of node, can effectively ensure construction quality.
Claims (3)
1. a kind of preparation method of large-scale bending steel stair, it is characterized in that：Including
Step 1, the expansion setting-out for distorting box-shaped wallboard and blanking,
The processing of step 2, cambered wallboard；
The shaping detection of step 3, cambered wallboard；
Wherein, the shape of the arc fold bending plate after blanking, bending point coordinates are proofreaded；
Step 4, set up assembling jig frame；
Step 5, wallboard positioning；
The terraced beam assembling positioning of step 6, box；
Wherein, the terraced beam of wallboard and box is placed on assembling jig frame, by moulding bed to the plate that is irregularly distorted in space
Every location data is checked；
Step 7, the terraced beam assembling of progress on assembling jig frame；
Step 8, carry out terraced beam and mark time assembling；
Step 9, dismounting assembling jig frame.
2. the preparation method of large-scale bending steel stair according to claim 1, it is characterized in that：Assembling jig frame passes through computer
Software for Design calculates terraced beam space coordinate, marks projection line, tongue and groove line, spacer lines etc. and sets up moulding bed positioning, and is made of section bar
Form.
3. the preparation method of large-scale bending steel stair according to claim 2, it is characterized in that：Assembling jig frame passes through computer
Software for Design calculates bending stair space coordinate and crucial control projection, it is determined that terraced beam and space orientation of marking time are assembled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710291383.6A CN107009097A (en) | 2017-04-28 | 2017-04-28 | The preparation method of large-scale bending steel stair |
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| CN201710291383.6A CN107009097A (en) | 2017-04-28 | 2017-04-28 | The preparation method of large-scale bending steel stair |
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| CN107009097A true CN107009097A (en) | 2017-08-04 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109057366A (en) * | 2018-08-31 | 2018-12-21 | 中冶建工集团有限公司 | A kind of steel construction spiral stairs segmented assembly method |
| CN109184225A (en) * | 2018-10-23 | 2019-01-11 | 中建三局安装工程有限公司 | Four string prismatic bending circular tube truss structural systems of one kind and assembling method |
| CN109403563A (en) * | 2018-11-19 | 2019-03-01 | 北京市机械施工有限公司 | A kind of interior super large list ladder girder cantilever formula rotation steel stair and preparation method thereof |
| CN110936104A (en) * | 2019-06-26 | 2020-03-31 | 浙江精工钢结构集团有限公司 | Manufacturing method of space torsion box type node |
| CN112144419A (en) * | 2020-10-20 | 2020-12-29 | 江苏沪宁钢机股份有限公司 | Giant space bent-torsion bridge arch foot and manufacturing method thereof |
| CN113536427A (en) * | 2021-07-15 | 2021-10-22 | 中国二十二冶集团有限公司 | Large-caliber bending steel pipe column splicing method |
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| CN101435248A (en) * | 2008-12-19 | 2009-05-20 | 中国建筑设计研究院 | Self-adapting variable cross-section rectangular steel tube bending component |
| CN102268909A (en) * | 2011-06-15 | 2011-12-07 | 王军 | Stair unit and multi-box assembled arc spiral stair composed thereof |
| CN103659182A (en) * | 2013-12-03 | 2014-03-26 | 中建钢构江苏有限公司 | Production method of 360-degree spiral stair with cambered box beams |
| US20150101273A1 (en) * | 2010-05-10 | 2015-04-16 | Larry James Hopper | Spiral box stair |
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2017
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| CN101435248A (en) * | 2008-12-19 | 2009-05-20 | 中国建筑设计研究院 | Self-adapting variable cross-section rectangular steel tube bending component |
| US20150101273A1 (en) * | 2010-05-10 | 2015-04-16 | Larry James Hopper | Spiral box stair |
| CN102268909A (en) * | 2011-06-15 | 2011-12-07 | 王军 | Stair unit and multi-box assembled arc spiral stair composed thereof |
| CN103659182A (en) * | 2013-12-03 | 2014-03-26 | 中建钢构江苏有限公司 | Production method of 360-degree spiral stair with cambered box beams |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109057366A (en) * | 2018-08-31 | 2018-12-21 | 中冶建工集团有限公司 | A kind of steel construction spiral stairs segmented assembly method |
| CN109184225A (en) * | 2018-10-23 | 2019-01-11 | 中建三局安装工程有限公司 | Four string prismatic bending circular tube truss structural systems of one kind and assembling method |
| CN109403563A (en) * | 2018-11-19 | 2019-03-01 | 北京市机械施工有限公司 | A kind of interior super large list ladder girder cantilever formula rotation steel stair and preparation method thereof |
| CN110936104A (en) * | 2019-06-26 | 2020-03-31 | 浙江精工钢结构集团有限公司 | Manufacturing method of space torsion box type node |
| CN112144419A (en) * | 2020-10-20 | 2020-12-29 | 江苏沪宁钢机股份有限公司 | Giant space bent-torsion bridge arch foot and manufacturing method thereof |
| CN113536427A (en) * | 2021-07-15 | 2021-10-22 | 中国二十二冶集团有限公司 | Large-caliber bending steel pipe column splicing method |
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Application publication date: 20170804 |
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