CN103821378A - Large-scale steel tubular pillar two-way center line control technology - Google Patents
Large-scale steel tubular pillar two-way center line control technology Download PDFInfo
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- CN103821378A CN103821378A CN201410082627.6A CN201410082627A CN103821378A CN 103821378 A CN103821378 A CN 103821378A CN 201410082627 A CN201410082627 A CN 201410082627A CN 103821378 A CN103821378 A CN 103821378A
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Abstract
The invention relates to an environment protecting building construction technology, in particular to a large-scale steel tubular pillar two-way center line control technology method. According to the existing large-scale steel tubular pillar or latticed column two-way center line control technology, side sway and torsion are generated due to improper precision control in the manufacturing process, aiming at the above defects and aiming to solve the technical problem, the invention provides the large-scale steel tubular pillar two-way center line control technology for enabling manufacturing of steel pillars and tubular pillars to meet the requirements of safety, economy and reliable use. The large-scale steel tubular pillar two-way center line control technology consists of a lofting measurement and a temporary fixation measurement.
Description
technical field:
The technology of the present invention relates to Green environmental-protection building construction technology, specifically refers to the two-way center line control technology of Large Steel tubular pillar method.
background technology:
The two-way center line control technology of current Large Steel tubular pillar or lattice column can produce following defect because precision control in manufacturing process is improper:
1: manufacturing process flatness control exists error, cause, after lower prop docking, easily occurring side sway and distortion.
2: in manufacturing process, the control of steel column center line is improper, cause lower prop off-centring, directly affect on-the-spot post beam connection is installed, cause and connect rear steel column bending or on-the-spot steel crane beam distortion, strengthened site construction difficulty and hidden some dangers for to the safety of whole engineering.
3: in manufacturing process single tubular pillar two ends center line control improper, cause bracket tilt, cause crane girder to install.Junction plate and capital junction plate center deflection at the bottom of post, affect that steel column is connected with cast-in fixing bolt or with girder steel or both can only connect upper one.
summary of the invention:
For above-mentioned defect, for solving the problems of the technologies described above, the object of the present invention is to provide the two-way center line control technology of a kind of novel large cylindrical steel tube post, make the making of steel column, tubular pillar reach safety, economy, service-strong requirement.
The two-way center line control technology of Large Steel tubular pillar of the present invention is made up of setting-out measure and temporary fixed measure, it is characterized in that:
A: lofting control:
I. on the steel platform tooling bracket of measuring levelling, bullet is emitted steel column respectively to center line, guarantees that position of center line error meets Construction of Steel Structure inspection of quality code requirement;
II. first confirm two main limb single tube cross centre lines and portray at steel tube end part, two single tubes are put in place on steel platform tooling bracket, require 270 ° of location points of steel pipe cross centre line to overlap with tooling bracket steel column center line on steel platform, adopt messenger wire pendant to check; Other each limbs of blanking steel column are put to formation steel column main body rectangle in place, and between frock and pipe, the upper non-slipping block of pad, prevents steel pipe movement;
III. check distance between 90 ° of location points of two limbs at the steel column upper surface of assembled formation, guarantee steel column main body rectangular dimension, then the center line of the lower prop of having made is extended, guarantee that the center line of upper prop is parallel with the distance of lower prop center line;
IV. measure and control 6 some parallelism with level gauge, prevent side sway in steel column plane;
V. check steel column respectively to size comprehensively, confirm that errorless laggard spot welding fixes, tack weld thickness >=3mm, length ﹥ 40mm, spacing 300～600mm;
B: interim strengthening control measure: I. for preventing that in steel column welding procedure process, steel column upper prop produces plane inner bending distortion, mold is proofreaied and correct temporarily, reinforced to the special interior kernel of section line of steel column plane of doing, Steel for Large Steel Column upper prop and lower prop are proofreaied and correct and located, guarantee that in steel column welding procedure process steel column plane, kernel of section line position is constant, reinforce mold installation employing and be welded and fixed;
II. for preventing that in steel column welding procedure process, steel column upper prop produces out-of plane bending distortion, mold is proofreaied and correct temporarily, reinforced to the special outer kernel of section line of steel column plane of doing, Steel for Large Steel Column upper prop and lower prop are proofreaied and correct and located, guarantee that the outer kernel of section line position of steel column welding procedure process steel column plane is constant;
III. steel column is reinforced and is completely started to carry out steel column welding procedure, and work progress carries out at any time the inside and outside Deformation checking of steel column plane and adjusts center line and proofread and correct temporarily, reinforce bolt on mold and proofread and correct, and guarantees the inside and outside center line straightness accuracy of steel column plane;
IV. steel column welds to be removed center line after complete 24 hours and proofreaies and correct temporarily, reinforces mold.
The technology of the present invention compared with prior art, under equal execution conditions, can reduce to make and proofread and correct cost, improves produce in factory and site construction efficiency, improves installation quality.Eliminate and connect the potential safety hazard such as distortion, unbalance stress that has some setbacks and bring to building because of member.
accompanying drawing explanation:
Accompanying drawing 1 is the bending schematic diagram of the interior upper prop of plane that prior art causes;
Accompanying drawing 2 is bending schematic diagrames of the outer upper prop of plane that prior art causes;
Accompanying drawing 3 is that the two-way center line control technology of Large Steel tubular pillar of the present invention is determined center line alignment schematic diagram;
Accompanying drawing 4 is the two-way center line control technology of Large Steel tubular pillar of the present invention control point schematic diagrames;
Accompanying drawing 6 is the outer measure schematic diagrames of the two-way center line control technology of Large Steel tubular pillar of the present invention plane;
Accompanying drawing 7 is that the two-way center line control technology of Large Steel tubular pillar of the present invention is reinforced mold schematic diagram.
The specific embodiment:
Visible with reference to accompanying drawing 1, accompanying drawing 2, original technology is made because of moulding bed, and center line control is unreasonable, causes difficult quality guarantee.Often in distribution upper prop plane or out-of-plane bending, the present invention by reference to the accompanying drawings 3---accompanying drawing 7, further describe, and the two-way center line control technology of Large Steel tubular pillar of the present invention is made up of setting-out measure and temporary fixed measure, and the step of lofting control is:
I. on the steel platform tooling bracket of measuring levelling, bullet is emitted steel column 1 respectively to center line, guarantees that position of center line error meets Construction of Steel Structure inspection of quality code requirement;
II. first confirm two main limb single tube cross centre lines and portray in steel pipe 1 end, two single tubes are put in place on steel platform tooling bracket, require 270 ° of location points of steel pipe cross centre line to overlap with tooling bracket steel column center line on steel platform, adopt messenger wire pendant to check; Other each limbs of blanking steel column are put to formation steel column main body rectangle in place, and between frock and pipe, the upper non-slipping block 2 of pad, prevents steel pipe movement;
III. check distance between 90 ° of location points of two limbs at steel column 1 upper surface of assembled formation, guarantee steel column main body rectangular dimension, then the center line of the lower prop of having made is extended, guarantee that the center line of upper prop is parallel with the distance of lower prop center line;
IV. measure and control 6 some parallelism with level gauge, prevent side sway in steel column 1 plane;
V. check steel column respectively to size comprehensively, confirm errorless
Interim strengthening control measure step is: I. for preventing that in steel column 1 welding procedure process, steel column 1 upper prop 4 produces plane inner bending distortion, mold 3 is proofreaied and correct temporarily, reinforced to the special interior kernel of section line of steel column plane of doing, Steel for Large Steel Column upper prop 4 and lower prop 5 are proofreaied and correct and located, guarantee that in steel column welding procedure process steel column plane, kernel of section line position is constant, reinforce mold installation employing and be welded and fixed;
II. for preventing that in steel column 1 welding procedure process, steel column 1 upper prop 4 produces out-of plane bending distortion, mold 3 is proofreaied and correct temporarily, reinforced to the special outer kernel of section line of steel column plane of doing, Steel for Large Steel Column upper prop 4 and lower prop 5 are proofreaied and correct and located, guarantee that the outer kernel of section line position of steel column welding procedure process steel column plane is constant;
III. steel column is reinforced and is completely started to carry out steel column welding procedure, and work progress carries out at any time the inside and outside Deformation checking of steel column plane and adjusts center line and proofread and correct temporarily, reinforce bolt on mold 3 and proofread and correct, and guarantees the inside and outside center line straightness accuracy of steel column plane;
IV. steel column welds to be removed center line after complete 24 hours and proofreaies and correct temporarily, reinforces mold 3.
Therefore, the two-way center line control technology of novel large cylindrical steel tube post has solved the structural stress problem producing in project installation process, has reduced Construction Cost, has guaranteed engineering construction quality.
Claims (1)
1. the two-way center line control technology of Large Steel tubular pillar is made up of setting-out measure and temporary fixed measure, it is characterized in that:
A: lofting control:
I. on the steel platform tooling bracket of measuring levelling, bullet is emitted steel column respectively to center line, guarantees that position of center line error meets Construction of Steel Structure inspection of quality code requirement;
II. first confirm two main limb single tube cross centre lines and portray at steel tube end part, two single tubes are put in place on steel platform tooling bracket, require 270 ° of location points of steel pipe cross centre line to overlap with tooling bracket steel column center line on steel platform, adopt messenger wire pendant to check; Other each limbs of blanking steel column are put to formation steel column main body rectangle in place, and between frock and pipe, the upper non-slipping block of pad, prevents steel pipe movement;
III. check distance between 90 ° of location points of two limbs at the steel column upper surface of assembled formation, guarantee steel column main body rectangular dimension, then the center line of the lower prop of having made is extended, guarantee that the center line of upper prop is parallel with the distance of lower prop center line;
IV. measure and control 6 some parallelism with level gauge, prevent side sway in steel column plane;
V. check steel column respectively to size comprehensively, confirm that errorless laggard spot welding fixes, tack weld thickness >=3mm, length ﹥ 40mm, spacing 300～600mm;
B: interim strengthening control measure: I. for preventing that in steel column welding procedure process, steel column upper prop produces plane inner bending distortion, mold is proofreaied and correct temporarily, reinforced to the special interior kernel of section line of steel column plane of doing, Steel for Large Steel Column upper prop and lower prop are proofreaied and correct and located, guarantee that in steel column welding procedure process steel column plane, kernel of section line position is constant, reinforce mold installation employing and be welded and fixed;
II. for preventing that in steel column welding procedure process, steel column upper prop produces out-of plane bending distortion, mold is proofreaied and correct temporarily, reinforced to the special outer kernel of section line of steel column plane of doing, Steel for Large Steel Column upper prop and lower prop are proofreaied and correct and located, guarantee that the outer kernel of section line position of steel column welding procedure process steel column plane is constant;
III. steel column is reinforced and is completely started to carry out steel column welding procedure, and work progress carries out at any time the inside and outside Deformation checking of steel column plane and adjusts center line and proofread and correct temporarily, reinforce bolt on mold and proofread and correct, and guarantees the inside and outside center line straightness accuracy of steel column plane;
IV. steel column welds to be removed center line after complete 24 hours and proofreaies and correct temporarily, reinforces mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410082627.6A CN103821378B (en) | 2014-03-10 | 2014-03-10 | Large-scale steel tubular pillar two-way center line control method |
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| CN201410082627.6A CN103821378B (en) | 2014-03-10 | 2014-03-10 | Large-scale steel tubular pillar two-way center line control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108712941A (en) * | 2016-03-10 | 2018-10-26 | 日立造船株式会社 | The steel pipe of steel pipe structuring and the welding method of connector |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH09189132A (en) * | 1996-01-10 | 1997-07-22 | Tokyu Constr Co Ltd | Fixing method of column base for steel frame column |
| CN102434003B (en) * | 2011-08-29 | 2014-04-23 | 山东寿光第一建筑有限公司 | Heavy battened steel column construction process |
| CN102720371B (en) * | 2012-07-04 | 2015-02-18 | 中国机械工业建设集团有限公司 | Butt joint method for multiple upright posts of steel structure module and temporary butt joint fixing device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108712941A (en) * | 2016-03-10 | 2018-10-26 | 日立造船株式会社 | The steel pipe of steel pipe structuring and the welding method of connector |
| CN108712941B (en) * | 2016-03-10 | 2020-05-15 | 日立造船株式会社 | Method for welding steel pipe and joint of steel pipe structural member |
| US11148218B2 (en) | 2016-03-10 | 2021-10-19 | Hitachi Zosen Corporation | Method for welding steel pipe in steel pipe structure and joint |
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Address after: 411100 Jinhai Road, Jiuhua demonstration area, Xiangtan, Hunan 1 Patentee after: HUNAN JINHAI STEEL STRUCTURE CO.,LTD. Address before: 410000 Jinhai Road, Jiuhua demonstration area, Xiangtan, Hunan 1 Patentee before: HUNAN JINHAI STEEL STRUCTURE Co.,Ltd. |
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Effective date of registration: 20221215 Address after: 416014 Ma'an Industrial Park, Hexi Town, Jishou City, Xiangxi Tujia and Miao Autonomous Prefecture, Hunan Province Patentee after: Hunan Jinhai Modern Construction Technology Co.,Ltd. Address before: 411100 Jinhai Road, Jiuhua demonstration area, Xiangtan, Hunan 1 Patentee before: HUNAN JINHAI STEEL STRUCTURE CO.,LTD. |
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