CN102767262A - Laminated surface reversible deformation method for large-span laminated plate beam - Google Patents
Laminated surface reversible deformation method for large-span laminated plate beam Download PDFInfo
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- CN102767262A CN102767262A CN2012102497518A CN201210249751A CN102767262A CN 102767262 A CN102767262 A CN 102767262A CN 2012102497518 A CN2012102497518 A CN 2012102497518A CN 201210249751 A CN201210249751 A CN 201210249751A CN 102767262 A CN102767262 A CN 102767262A
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- girder
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- underbeam
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000002441 reversible effect Effects 0.000 title claims abstract description 21
- 238000003466 welding Methods 0.000 claims abstract description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052742 iron Inorganic materials 0.000 claims abstract description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 5
- 239000010959 steel Substances 0.000 abstract description 5
- 238000005553 drilling Methods 0.000 abstract 1
- 238000010030 laminating Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000003475 lamination Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
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Abstract
The invention discloses a laminated surface reversible deformation method for a large-span laminated plate beam. The method comprises the following steps of: welding an upper frange plate of an upper beam in the laminated plate beam with a web plate to form a first T-shaped beam and welding an upper frange plate of a lower beam with another web plate to form a second T-shaped beam; laminating a lower frange plate of the upper beam in the laminated plate beam with the upper frange plate of the lower beam for drilling; continuously arranging steel bars or iron wires at a middle line between the lower frange plate of the upper beam and the upper frange plate of the lower beam; fastening the lower frange plate of the upper beam and the upper frange plate of the lower beam by bolts; combining and welding the first T-shaped beam and the lower frange plate of the upper beam, and combining and welding the second T-shaped beam and the upper frange plate of the lower beam; and disassembling the bolts used for fixing the lower frange plate of the upper beam and the upper frange plate of the lower beam. By the laminated surface reversible deformation method, the influence caused by welding deformation on the plate can be greatly reduced, and the flatness of the laminated surfaces of the upper beam and the lower beam of the laminated plate beam can be guaranteed; and the assembly requirement of the laminated plate beam can be well met, and the working amount for restoring the deformation is obviously reduced.
Description
Technical field
The present invention relates to the processing method of steel work, specifically, relate to a kind of processing and fabricating method of superimposed plate-girder.
Background technology
Superimposed plate-girder is meant the beam type structural element that is combined by steel plate, is I-shaped upper beam and underbeam is superimposed constitutes by the cross section, and upper and lower beam interfixes through the fastening bolt on the superposed surfaces, and is as shown in Figure 1.And in processing and making process, when the web of upper and lower beam and frange plate welding, because the effect of thermal deformation and welding stress, frange plate can produce distortion, and is as shown in Figure 2.Therefore in the manufacturing process of lamination plate-girder, the flatness that guarantees upper and lower beam superposed surfaces is the key of decision lamination plate-girder fabricating quality.
Present method of operating is normally earlier carried out the welding job of upper and lower beam respectively, and then superposed surfaces is reprocessed.But after being to use this method to proofread and correct superposed surfaces, often fall flat, the wave that the superposed surfaces generation can not be repaired is curved.
Another kind of method of operating is exactly to utilize reversible deformation equipment in advance superposed surfaces to be carried out reversible deformation earlier to handle, and after welding is accomplished, repairs individually again.The emphasis of this method is the processing of reversible deformation equipment to the superposed surfaces steel plate, because the superposed surfaces of superimposed plate-girder is often long, heavier, so the reversible deformation compacting is relatively more difficult, and the controlled quentity controlled variable of reversible deformation also is difficult to grasp.
Summary of the invention
What the present invention will solve is in the processing and fabricating of superimposed plate-girder; The technical problem that the flatness of upper and lower beam superposed surfaces is difficult to guarantee; The superposed surfaces reversible deformation method of the superimposed plate-girder of a kind of large span is provided; Can guarantee the planeness of the upper and lower beam superposed surfaces of superimposed plate-girder, satisfy installation requirement, constructing operation is convenient fast.
In order to solve the problems of the technologies described above, the present invention is achieved through following technical scheme:
The superposed surfaces reversible deformation method of the superimposed plate-girder of a kind of large span, this method is carried out according to following steps:
A. top flange plate of putting the beams in place in the superimposed plate-girder and last web are welded as first tee girder, the bottom wing listrium of underbeam is welded as second tee girder with following web;
B. with the superimposed placement of top flange plate of bottom wing listrium of putting the beams in place in the superimposed plate-girder and underbeam and overlap brill;
C. elongated reinforcing bar or the iron wire of being provided with of midline position between the top flange plate of bottom wing listrium of putting the beams in place and underbeam;
D. with bolt that the top flange plate of bottom wing listrium of putting the beams in place and underbeam is fastening;
E. the bottom wing listrium with first tee girder and upper beam makes up and welding, with the top flange plate combination and the welding of second tee girder and underbeam;
F. remove the bolt of the top flange plate of the bottom wing listrium be used for fixing upper beam and underbeam.
The invention has the beneficial effects as follows:
The present invention adopts comparatively common reinforcing bar or iron wire as aid; Two blocks of superimposed plate-girders are carried out reversible deformation to be handled; Through after the welding fastening bolt being taken apart, get final product of the influence of the reduction welding deformation of very big degree to sheet material, guarantee the planeness of the upper and lower beam superposed surfaces of superimposed plate-girder; Satisfy the installation requirement of superimposed plate-girder preferably, obviously reduce the workload of repairing distortion.The present invention conceives complete ingenious, and simple operation is quick, has saved production time and cost of production, improved the production efficiency that the lamination plate-girder is made, and aid is also all very general, and promotional value is higher.
Description of drawings
Fig. 1 is the structural representation of superimposed plate-girder;
Fig. 2 puts the beams in place in the superimposed plate-girder to produce the sketch map of distortion;
Fig. 3 is the sketch map of second step in the superposed surfaces reversible deformation method of the superimposed plate-girder of large span provided by the present invention;
Fig. 4 is the sketch map of third step in the superposed surfaces reversible deformation method of the superimposed plate-girder of large span provided by the present invention;
Fig. 5 is the sketch map of the 4th step in the superposed surfaces reversible deformation method of the superimposed plate-girder of large span provided by the present invention;
Fig. 6 is the vertical view of Fig. 5;
Fig. 7 is first sketch map of the 5th step in the superposed surfaces reversible deformation method of the superimposed plate-girder of large span provided by the present invention;
Fig. 8 is second sketch map of the 5th step in the superposed surfaces reversible deformation method of the superimposed plate-girder of large span provided by the present invention;
Fig. 9 is the sketch map of the 6th step in the superposed surfaces reversible deformation method of the superimposed plate-girder of large span provided by the present invention;
Among the figure: 1, the bottom wing listrium of upper beam; 2, the top flange plate of underbeam; 3, reinforcing bar; 4, bolt;
5, the first tee girders; 6, the second tee girders.
The specific embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, specify the superposed surfaces reversible deformation method of the superimposed plate-girder of large span of the present invention below in conjunction with accompanying drawing:
The superposed surfaces reversible deformation method of the superimposed plate-girder of a kind of large span, this method is carried out according to following steps:
First step is welded as first tee girder 5 with top flange plate of putting the beams in place in the superimposed plate-girder and last web, and the bottom wing listrium of underbeam is welded as second tee girder 6 with following web.
Second step, as shown in Figure 3, with the top flange plate 2 superimposed placements of the bottom wing listrium of putting the beams in place in the superimposed plate-girder 1, simultaneously two boards is overlapped brill with underbeam.
Third step, as shown in Figure 4, elongated reinforcing bar 3 or the iron wire of being provided with of midline position between the top flange plate 2 of bottom wing listrium 1 of putting the beams in place and underbeam.
The 4th step, as shown in Figure 5, with bolt 4 that the bottom wing listrium of putting the beams in place 1 is fastening with the top flange plate 2 of underbeam.As shown in Figure 6, bolt 4 needn't all be installed, and its quantity can be confirmed according to the deadweight of beam.
The 5th step, as shown in Figure 7, with first tee girder 5 and the bottom wing listrium of putting the beams in place 1 combination and welding; As shown in Figure 8, with of top flange plate 2 combinations and the welding of second tee girder 6, because the superposed surfaces steel plate is generally thicker, so should adopt the automatic submerged-arc welding with underbeam.
The 6th step, as shown in Figure 9, remove the bolt 4 of the top flange plate 2 of the bottom wing listrium 1 be used for fixing upper beam and underbeam, the superimposed flatness of superimposed plate-girder this moment can satisfy installation requirement.
Although combine accompanying drawing and preferred embodiment that the preferred embodiments of the present invention are described above; But the present invention is not limited to the above-mentioned specific embodiment, and the above-mentioned specific embodiment only is schematically, is not restrictive; Those of ordinary skill in the art is under enlightenment of the present invention; Not breaking away under the scope situation that aim of the present invention and claim protect, can also make the concrete conversion of a lot of forms, these all belong within protection scope of the present invention.
Claims (1)
1. the superposed surfaces reversible deformation method of the superimposed plate-girder of large span is characterized in that this method is carried out according to following steps:
A. top flange plate of putting the beams in place in the superimposed plate-girder and last web are welded as first tee girder, the bottom wing listrium of underbeam is welded as second tee girder with following web;
B. with the superimposed placement of top flange plate of bottom wing listrium of putting the beams in place in the superimposed plate-girder and underbeam and overlap brill;
C. elongated reinforcing bar or the iron wire of being provided with of midline position between the top flange plate of bottom wing listrium of putting the beams in place and underbeam;
D. with bolt that the top flange plate of bottom wing listrium of putting the beams in place and underbeam is fastening;
E. the bottom wing listrium with first tee girder and upper beam makes up and welding, with the top flange plate combination and the welding of second tee girder and underbeam;
F. remove the bolt of the top flange plate of the bottom wing listrium be used for fixing upper beam and underbeam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102497518A CN102767262A (en) | 2012-07-18 | 2012-07-18 | Laminated surface reversible deformation method for large-span laminated plate beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102497518A CN102767262A (en) | 2012-07-18 | 2012-07-18 | Laminated surface reversible deformation method for large-span laminated plate beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102767262A true CN102767262A (en) | 2012-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102497518A Pending CN102767262A (en) | 2012-07-18 | 2012-07-18 | Laminated surface reversible deformation method for large-span laminated plate beam |
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| Country | Link |
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| CN (1) | CN102767262A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109590675A (en) * | 2018-10-30 | 2019-04-09 | 上海建工（江苏）钢结构有限公司 | A kind of tower boiler steelframe superposed type large girder production method |
| CN116241013A (en) * | 2023-03-16 | 2023-06-09 | 中国十七冶集团有限公司 | High-strength steel structure and manufacturing process |
| CN116944721A (en) * | 2023-07-03 | 2023-10-27 | 海洋石油工程（青岛）有限公司 | Integral deformation prevention technology for multi-pipe seat welding |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4068964A (en) * | 1977-02-09 | 1978-01-17 | Stoker Robert J | End plate connection unit for beams |
| CN101135190A (en) * | 2007-09-03 | 2008-03-05 | 江苏美凯龙钢业有限公司 | Method for preparing plate assembly composite spliced beam |
| KR20090062804A (en) * | 2007-12-13 | 2009-06-17 | 유각열 | H beam connection |
| CN102059466A (en) * | 2010-12-13 | 2011-05-18 | 天津工程机械研究院 | Machining method for preventing welding deformation of plate-type metallic workpieces |
-
2012
- 2012-07-18 CN CN2012102497518A patent/CN102767262A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4068964A (en) * | 1977-02-09 | 1978-01-17 | Stoker Robert J | End plate connection unit for beams |
| CN101135190A (en) * | 2007-09-03 | 2008-03-05 | 江苏美凯龙钢业有限公司 | Method for preparing plate assembly composite spliced beam |
| KR20090062804A (en) * | 2007-12-13 | 2009-06-17 | 유각열 | H beam connection |
| CN102059466A (en) * | 2010-12-13 | 2011-05-18 | 天津工程机械研究院 | Machining method for preventing welding deformation of plate-type metallic workpieces |
Non-Patent Citations (3)
| Title |
|---|
| 刘文斌: "1000MW锅炉钢结构大板梁制作探讨", 《钢结构》 * |
| 周迪祥等: "锅炉钢结构叠梁加工的思考", 《钢结构》 * |
| 高国兵等: "特大叠合工字形大板梁的焊接制造", 《首届全国钢结构施工技术交流会论文集》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109590675A (en) * | 2018-10-30 | 2019-04-09 | 上海建工（江苏）钢结构有限公司 | A kind of tower boiler steelframe superposed type large girder production method |
| CN116241013A (en) * | 2023-03-16 | 2023-06-09 | 中国十七冶集团有限公司 | High-strength steel structure and manufacturing process |
| CN116241013B (en) * | 2023-03-16 | 2024-08-23 | 中国十七冶集团有限公司 | High-strength steel structure and manufacturing process |
| CN116944721A (en) * | 2023-07-03 | 2023-10-27 | 海洋石油工程（青岛）有限公司 | Integral deformation prevention technology for multi-pipe seat welding |
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Application publication date: 20121107 |