CN104652284A - Reverse splicing construction method for steel box girder - Google Patents
Reverse splicing construction method for steel box girder Download PDFInfo
- Publication number
- CN104652284A CN104652284A CN201510012261.XA CN201510012261A CN104652284A CN 104652284 A CN104652284 A CN 104652284A CN 201510012261 A CN201510012261 A CN 201510012261A CN 104652284 A CN104652284 A CN 104652284A
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- CN
- China
- Prior art keywords
- steel box
- splicing
- girder
- welding
- box girder
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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
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a reverse splicing construction method for a steel box girder. A reverse splicing method is adopted for splicing the steel box girder, a front jig frame of a bridge deck is manufactured according to parameters of a three-dimensional model diagram of the steel box girder, and workpieces of the steel box girder are reversely spliced on the front jig frame. The method comprises the following specific splicing steps: reversely splicing the bridge deck, piecewise spot-welding the bridge deck into a whole after the bridge deck is spliced, scribing the bridge deck to mark the workpiece positions of partition plates, webs, U-shaped ribs and a rib plate, splicing the middle web, the partition plates, the webs on the two sides and the U-shaped ribs, splicing a bridge bottom plate, and finally splicing the rib plate; after the workpieces are spliced, piecewise performing weld reinforcement treatment on the steel box girder. According to the method, an upward splicing manner for the workpieces is replaced by a downward splicing manner, and overhead welding is replaced by flat welding, so that the splicing and welding working efficiency of the steel box girder is improved, and the labor intensity of a technical worker is reduced.
Description
Technical field
The present invention relates to steel box-girder and make field, specifically belong to the anti-assembling and construction method of steel box-girder.
Background technology
Present steel box girder assembling adopts positive spelling, and assembled step is: make fetal membrane-bridge base plate-dividing plate-web-bridge deck-U-shaped rib-floor, assembled complete carry out welding, the operation such as anticorrosion, installation.The general base plate of width of bridge is less than panel, forms web outward-dipping, and middle every 2 ~ 4m has membrane support, the large inefficiency of the assembled difficulty of web; Bridge deck lower plane generally arranges 8 ~ 15 U-shaped ribs in road, causes U-shaped rib upwards assembled, the large inefficiency of assembled difficulty.Bridge weld seam 30% ~ 40% is overhead welding, and speed of welding is slow, ratio of defects is high, requires welder technology higher level and labour intensity is large.
Summary of the invention
The object of this invention is to provide the anti-assembling and construction method of a kind of steel box-girder, on moulding bed assembled for first base plate rear board change first panel into after base plate assembled, overhead welding is changed into downhand welding, improves the operating efficiency of steel box girder assembling and welding, reduce the labour intensity of skilled worker.
Technical scheme of the present invention is as follows:
Steel box girder assembling adopts anti-spelling, the front moulding bed of bridge deck is made according to steel box-girder threedimensional model graph parameter, anti-workpiece of spelling steel box-girder on the moulding bed of front, its concrete assembled step is: elder generation is counter spells bridge deck, assembledly bridge deck waypoint is welded into entirety, at bridge floor lining out afterwards: the location of workpiece marking dividing plate, web, U-shaped rib, floor, more assembled median ventral plate, dividing plate, both sides web, U-shaped rib, then assembled bridge base plate, last assembled floor; Assembled complete after each section of steel box-girder carry out weld seam consolidation process, then carry out full-bridge and formally weld, weld according to the welding sequence of downhand welding after first vertical position welding, first intermediate and then both sides; Steel box-girder lifting is stood up, then welds remaining downhand welding.
After described downhand welding completes, carry out the operation constructions such as anticorrosion, installation.
The present invention changes into upwards assembled for workpiece assembled downwards, overhead welding is changed into downhand welding, improves the operating efficiency of steel box girder assembling and welding, reduce the labour intensity of skilled worker.Make a 320t steel box-girder, U-shaped rib from top assembled become bottom assembled, save artificial 20 work days, former overhead welding becomes downhand welding, saves artificial 65 work days, reduces the labour intensity of skilled worker simultaneously.
Accompanying drawing explanation
Fig. 1 is assembled schematic diagram of the present invention.
Detailed description of the invention
According to equipment capability and the road transport condition of factory, steel box-girder is sectional making in factory, after integral assembling acceptance(check), disintegrates and transports erecting bed to, and segmentation erection is spliced into entirety.See accompanying drawing, steel box girder assembling adopts anti-spelling, the front moulding bed 6 of bridge deck is made according to steel box-girder threedimensional model graph parameter, anti-workpiece of spelling steel box-girder on the moulding bed of front, its concrete assembled step is: first instead spell bridge deck 1, assembledly rear bridge deck 1 waypoint is welded into entirety, bridge deck 1 are rule: the location of workpiece marking dividing plate 2, web 3, U-shaped rib 4, floor 5, assembled median ventral plate, dividing plate, both sides web, U-shaped rib again, then assembled bridge base plate, last assembled floor; Assembled complete after each section of steel box-girder carry out weld seam consolidation process, then carry out full-bridge and formally weld, weld according to the welding sequence of downhand welding after first vertical position welding, first intermediate and then both sides; Steel box-girder lifting is stood up, then welds remaining downhand welding, after downhand welding completes, carries out the operation constructions such as anticorrosion, installation.
Claims (2)
1. the anti-assembling and construction method of steel box-girder, it is characterized in that, the front moulding bed of bridge deck is made according to steel box-girder threedimensional model graph parameter, anti-workpiece of spelling steel box-girder on the moulding bed of front, its concrete assembled step is: first instead spells bridge deck, assembledly rear bridge deck waypoint is welded into entirety, at bridge floor lining out: the location of workpiece marking dividing plate, web, U-shaped rib, floor, assembled median ventral plate, dividing plate, both sides web, U-shaped rib again, then assembled bridge base plate, last assembled floor; Assembled complete after each section of steel box-girder carry out weld seam consolidation process, then carry out full-bridge and formally weld, weld according to the welding sequence of downhand welding after first vertical position welding, first intermediate and then both sides; Steel box-girder lifting is stood up, then welds remaining downhand welding.
2. the anti-assembling and construction method of steel box-girder according to claim 1, is characterized in that, after described downhand welding completes, carries out the operation constructions such as anticorrosion, installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510012261.XA CN104652284A (en) | 2015-01-09 | 2015-01-09 | Reverse splicing construction method for steel box girder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510012261.XA CN104652284A (en) | 2015-01-09 | 2015-01-09 | Reverse splicing construction method for steel box girder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104652284A true CN104652284A (en) | 2015-05-27 |
Family
ID=53243880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510012261.XA Pending CN104652284A (en) | 2015-01-09 | 2015-01-09 | Reverse splicing construction method for steel box girder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104652284A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106702902B (en) * | 2015-11-18 | 2018-12-14 | 上海宝冶集团有限公司 | Docking grafting construction method for hanging is put down between a kind of bridge steel box girder segment |
| CN110170799A (en) * | 2019-06-04 | 2019-08-27 | 上海绿地建筑钢结构有限公司 | Steel box-girder manufacture craft |
| CN110205947A (en) * | 2019-07-06 | 2019-09-06 | 中铁二十五局集团第五工程有限公司 | A kind of overline bridge steel box girder construction method |
| CN110258288A (en) * | 2019-05-07 | 2019-09-20 | 中交一公局桥隧工程有限公司 | Steel box-girder and steel box-girder processing method |
| CN110541349A (en) * | 2019-09-06 | 2019-12-06 | 中国五冶集团有限公司 | Space curved surface special-shaped steel box girder bridge section and accurate welding processing forming method thereof |
| CN111560855A (en) * | 2020-05-25 | 2020-08-21 | 武船重型工程股份有限公司 | Construction method of orthotropic steel bridge |
| CN111790995A (en) * | 2020-05-17 | 2020-10-20 | 北京市政建设集团有限责任公司 | Construction process for welding steel beam |
| CN112536542A (en) * | 2020-12-11 | 2021-03-23 | 洛阳豫安金属结构有限公司 | Manufacturing method of ramp steel box girder |
| CN112719795A (en) * | 2020-12-17 | 2021-04-30 | 江苏恒睿杰钢结构工程有限公司 | Manufacturing method of large steel box girder |
| CN114164770A (en) * | 2022-02-10 | 2022-03-11 | 中铁山桥(南通)有限公司 | Assembling method for forward and reverse combination of ultra-wide framing steel box girder |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR0160824B1 (en) * | 1995-07-24 | 1998-12-15 | 윤원석 | Successive assembly method of box girder for steel plate bridge |
| CN201172796Y (en) * | 2008-04-03 | 2008-12-31 | 长安大学 | Steel box beam bridge deck structure with longitudinal ribs on |
| CN102814592A (en) * | 2011-06-08 | 2012-12-12 | 大连船舶重工集团装备制造有限公司 | Welding precision control design of large-scale steel structure |
-
2015
- 2015-01-09 CN CN201510012261.XA patent/CN104652284A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR0160824B1 (en) * | 1995-07-24 | 1998-12-15 | 윤원석 | Successive assembly method of box girder for steel plate bridge |
| CN201172796Y (en) * | 2008-04-03 | 2008-12-31 | 长安大学 | Steel box beam bridge deck structure with longitudinal ribs on |
| CN102814592A (en) * | 2011-06-08 | 2012-12-12 | 大连船舶重工集团装备制造有限公司 | Welding precision control design of large-scale steel structure |
Non-Patent Citations (2)
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| 方键等: "沈阳南站市政交通工程钢箱梁制作技术", 《钢结构》 * |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106702902B (en) * | 2015-11-18 | 2018-12-14 | 上海宝冶集团有限公司 | Docking grafting construction method for hanging is put down between a kind of bridge steel box girder segment |
| CN110258288A (en) * | 2019-05-07 | 2019-09-20 | 中交一公局桥隧工程有限公司 | Steel box-girder and steel box-girder processing method |
| CN110170799A (en) * | 2019-06-04 | 2019-08-27 | 上海绿地建筑钢结构有限公司 | Steel box-girder manufacture craft |
| CN110205947A (en) * | 2019-07-06 | 2019-09-06 | 中铁二十五局集团第五工程有限公司 | A kind of overline bridge steel box girder construction method |
| CN110541349A (en) * | 2019-09-06 | 2019-12-06 | 中国五冶集团有限公司 | Space curved surface special-shaped steel box girder bridge section and accurate welding processing forming method thereof |
| CN111790995A (en) * | 2020-05-17 | 2020-10-20 | 北京市政建设集团有限责任公司 | Construction process for welding steel beam |
| CN111560855A (en) * | 2020-05-25 | 2020-08-21 | 武船重型工程股份有限公司 | Construction method of orthotropic steel bridge |
| CN112536542A (en) * | 2020-12-11 | 2021-03-23 | 洛阳豫安金属结构有限公司 | Manufacturing method of ramp steel box girder |
| CN112719795A (en) * | 2020-12-17 | 2021-04-30 | 江苏恒睿杰钢结构工程有限公司 | Manufacturing method of large steel box girder |
| CN114164770A (en) * | 2022-02-10 | 2022-03-11 | 中铁山桥(南通)有限公司 | Assembling method for forward and reverse combination of ultra-wide framing steel box girder |
| CN114164770B (en) * | 2022-02-10 | 2022-04-29 | 中铁山桥(南通)有限公司 | Assembling method for forward and reverse combination of ultra-wide framing steel box girder |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150527 |
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| RJ01 | Rejection of invention patent application after publication |