CN102493347B - Method for machining and mounting flanges between sections of steel pipe arch - Google Patents
Method for machining and mounting flanges between sections of steel pipe arch Download PDFInfo
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- CN102493347B CN102493347B CN 201110415513 CN201110415513A CN102493347B CN 102493347 B CN102493347 B CN 102493347B CN 201110415513 CN201110415513 CN 201110415513 CN 201110415513 A CN201110415513 A CN 201110415513A CN 102493347 B CN102493347 B CN 102493347B
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Abstract
The invention belongs to the technical field of mounting bridge steel pipe arches, in particular to a method for machining and mounting flanges between sections of a steel pipe arch, which includes: pre-machining two symmetrical flanges; machining two fixture pipes according to specifications of a steel pipe arch rib chord tube; and welding the machined flanges and reinforcing plates on the fixture pipes, providing check lines to determine planes of the flanges, mounting the machined flanges and the reinforcing plates into an end of a section of the steel pipe arch rib chord tube, and performing symmetrical fusion-through welding for fillet seams between the reinforcing plates and the steel pipe arch rib chord tube. The method has he advantages that the fixture pipes are used for simulating outlines of all arch rib joint areas, the flanges and the flange reinforcing plates between the sections of each arch rib are welded precisely, flange contact faces are machined after the flanges and the reinforcing plates are welded, and accordingly, affection of welding on flange connecting precision is reduced.
Description
Technical field
The invention belongs to bridge steel pipeline overhead lifting mounting technique field, be specifically related to flange processing and mounting method between a kind of steel pipe arch sections.
Background technology
In bridge construction, during cantilever lifting steel pipe arch, the connection between main arch rib sectionalizing joint flange must with steel tube arch rib string pipe equal strength.Steel pipe encircles the linear key factor of control arch rib when the cooperation of main arch rib joint flange dish is closely connected to be lifting.Many steel pipe arch bridges often cooperate the bad arch rib journal offset that causes because of flange, cause the closure difficulty or become the linear error of bridge excessive.Traditional flange manufacture is first with closely connected machine-shaping of flange, when steel tube arch rib is pieced together assembly in advance flange and flange stiffener coupling is welded.The flange distortion that is caused by intensive welding will cause the flange contact surface can not be closely connected, cause the linear and misalignment of axe of one-tenth bridge of steel tube arch rib easily, increase hoisting difficulty, reduce the intensity of steel tube arch rib.
Summary of the invention
Technical problem to be solved by this invention provides a kind of flange distortion that is caused by flange and the intensive welding of flange stiffener can eliminate main arch rib and piece together assembly in advance the time, guarantees flange processing and mounting method between the closely connected steel pipe arch sections of flange contact surface.
For solving the problems of the technologies described above, technical scheme of the present invention is:
Flange processing and mounting method between a kind of steel pipe arch sections comprise the steps:
Step 1: the flange of two symmetries of processing;
Described two flange need the caliber size blanking at mounting flange place by described steel tube arch rib string pipe, and reserve allowance, join at two flange and bore the processing endoporus, evenly join and bore a plurality of bolts hole of processing;
Step 2: according to processing two frock mould pipes with described steel tube arch rib string pipe specification;
Step 3: described two frock mould pipes by each linear, angle orientation in segmentation termination, are installed described two flange and stiffener, and with fastening two flange of securing member, penetration welds the fillet weld between described flange and stiffener;
Step 4: after the welding completion, remove described securing member, portrayal checks line in the flange side by described flange contact surface, and the mark upper and lower to;
Step 5: pull down the both sides flange from described frock mould pipe, according to checking line processing flange contact surface, eliminate allowance, make the flange plane and inspection line parallel of processing;
Step 6: the flange parts after processing by the upper and lower of indicating on the flange to being placed in advance in the steel tube arch rib string pipe segmentation termination, all welding job completion back cutting section steel tube arch rib string pipe end surpluses of the segmentation of manufacturing to be matched, two flange are located at steel tube arch rib string pipe with securing member locking back, and the flange contact surface is the target position line alignedly;
Step 7: the fillet weld of symmetrical penetration welding stiffener and steel tube arch rib string pipe.
In the described step 1, on described two flange, evenly join and bore eight bolts hole of processing.
In the described step 7, also comprise with the applying degree between clearance gauge control flange dish contact surface.
The invention has the beneficial effects as follows that to intend each arch rib joint area by frock mould pipe die linear, accurately dress welds flange and the flange stiffener between each rib-lifting section, reprocessing flange contact surface reduced welding procedure connects the accuracy of manufacture to flange influence after flange and stiffener welding were finished.
Description of drawings
Below in conjunction with the drawings and specific embodiments technical scheme of the present invention is further described in detail.
Fig. 1 is step 1 flange processing schematic diagram among the embodiment of flange processing and mounting method between steel pipe arch sections of the present invention.
Fig. 2 is the flange processing schematic diagram of step 3 among the embodiment of flange processing and mounting method between steel pipe arch sections of the present invention.
Fig. 3 is the flange processing schematic diagram of step 4 among the embodiment of flange processing and mounting method between steel pipe of the present invention arch sections.
Fig. 4 is the flange scheme of installation of step 5 among the embodiment of flange processing and mounting method between steel pipe of the present invention arch sections.
Fig. 5 is the flange scheme of installation of step 6 among the embodiment of flange processing and mounting method between steel pipe of the present invention arch sections.
Fig. 6 is the flange scheme of installation of step 7 among the embodiment of flange processing and mounting method between steel pipe of the present invention arch sections.
The specific embodiment
Flange processing and mounting method between a kind of steel pipe arch sections comprise the steps:
As Fig. 1, shown in Figure 5, step 1: the flange 1 of two symmetries of processing;
Two flange 1 are pressed the caliber size blanking that steel tube arch rib string pipe 5 needs mounting flange 1 place, and reserve allowance, join at two flange 1 and bore processing endoporus 3, evenly join and bore eight bolts hole 2 of processing;
Step 2: according to processing two frock mould pipes with steel tube arch rib string pipe 5 specifications;
As shown in Figure 2, step 3: two frock mould pipes by each linear, angle orientation in segmentation termination, are installed two flange 1 and stiffener 4, and fastening two flange 1 of usefulness securing member, penetration weld the fillet weld of 4 of described flange 1 and stiffeners;
As shown in Figure 3,2 step 4: after the welding completion, remove securing member, portrayal checks line 12 in the flange side press flange contact surface 11, and mark upward direction be S, following direction is X;
As shown in Figure 4, step 5: pull down both sides flange 1 from frock mould pipe, according to checking line 12 processing flange contact surfaces 11, eliminate allowance, make flange 1 plane of processing parallel with inspection line 12;
As shown in Figure 5, step 6: flange 1 parts after processing are by indicating on the flange 1 that the represented upper and lower of S, X is to being placed in advance in the steel tube arch rib string pipe 5 segmentation terminations, all welding job completion back cutting section steel tube arch rib string pipe 5 termination surpluses of the segmentation of manufacturing to be matched, in steel tube arch rib string pipe 5 location, flange contact surface 11 is the target position line alignedly with two flange, 1 usefulness securing member locking back;
As shown in Figure 6, step 7: the fillet weld of symmetrical penetration welding stiffener 4 and steel tube arch rib string pipe 5, and in welding process the applying degree of 11 of clearance gauge control flange dish contact surfaces.
To intend each arch rib joint area by frock mould pipe die linear for flange processing and mounting method between this steel pipe arch sections, accurately dress welds flange and the flange stiffener between each rib-lifting section, reprocessing flange contact surface reduced welding procedure connects the accuracy of manufacture to flange influence after flange and stiffener welding were finished.
It should be noted last that, the above specific embodiment is only unrestricted in order to technical scheme of the present invention to be described, although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (3)
1. a steel pipe encircles flange processing and mounting method between sections, it is characterized in that, comprises the steps:
Step 1: the flange of two symmetries of processing;
Described two flange are pressed the caliber size blanking that steel tube arch rib string pipe needs the mounting flange place, and reserve allowance, join at two flange and bore the processing endoporus, evenly join and bore a plurality of bolts hole of processing;
Step 2: according to two frock mould pipes of described steel tube arch rib string pipe specification processing;
Step 3: described two frock mould pipes by each linear, angle orientation in segmentation termination, are installed described two flange and stiffener, and with fastening two flange of securing member, penetration welds the fillet weld between described flange and stiffener;
Step 4: after the welding completion, remove described securing member, portrayal checks line in the flange side by described flange contact surface, and the mark upper and lower to;
Step 5: pull down the both sides flange from described frock mould pipe, according to checking line processing flange contact surface, eliminate allowance, make the flange plane and inspection line parallel of processing;
Step 6: the flange parts after processing by the upper and lower of indicating on the flange to being placed in advance in the steel tube arch rib string pipe segmentation termination, all welding job completion back cutting section steel tube arch rib string pipe end surpluses of the segmentation of manufacturing to be matched, two flange are located at steel tube arch rib string pipe with securing member locking back, and the flange contact surface is the target position line alignedly;
Step 7: the fillet weld of symmetrical penetration welding stiffener and steel tube arch rib string pipe.
2. flange processing and mounting method between steel pipe arch sections according to claim 1 is characterized in that, evenly join on described two flange in the described step 1 and bore eight bolts hole of processing.
3. according to flange processing and mounting method between claim 1 or 2 described steel pipe arch sections, it is characterized in that, in the described step 7, also comprise with the applying degree between clearance gauge control flange dish contact surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110415513 CN102493347B (en) | 2011-12-13 | 2011-12-13 | Method for machining and mounting flanges between sections of steel pipe arch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110415513 CN102493347B (en) | 2011-12-13 | 2011-12-13 | Method for machining and mounting flanges between sections of steel pipe arch |
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| CN102493347A CN102493347A (en) | 2012-06-13 |
| CN102493347B true CN102493347B (en) | 2013-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110415513 Active CN102493347B (en) | 2011-12-13 | 2011-12-13 | Method for machining and mounting flanges between sections of steel pipe arch |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102864738B (en) * | 2012-09-29 | 2014-08-27 | 中铁十五局集团有限公司 | Device and method for accelerating closure of arch ribs of arch bridge |
| CN103711081B (en) * | 2013-12-26 | 2015-08-26 | 中国一冶集团有限公司 | Utilize the method for flange position, arch springing upper port place, coordinate modification legal position |
| CN104532750B (en) * | 2014-12-22 | 2016-06-08 | 盈都桥梁钢构工程有限公司 | A kind of guarantee steel case arch arch springing flanged plate flatness construction method |
| CN105862603B (en) * | 2016-06-01 | 2018-03-09 | 中交四公局第五工程有限公司 | A kind of easy steel pipe arch bridge arch rib closure device |
| CN111622125A (en) * | 2020-06-10 | 2020-09-04 | 中铁二局第二工程有限公司 | Method for mounting through-type inverted triangular comb-shaped steel pipe arch rib |
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| JP2002201609A (en) * | 2000-12-28 | 2002-07-19 | Ps Corp | Construction method for concrete arch bridge |
| KR20070087902A (en) * | 2006-01-27 | 2007-08-29 | 노윤근 | Method for constructing steel and wood compounded bridge getting along with environment using steel-wood compound segment members manu factured by strongly connecting steel and wood |
| CN101054791A (en) * | 2007-05-09 | 2007-10-17 | 华东交通大学 | Joist type cable arch bridge structure and its construction method |
| CN101148860A (en) * | 2007-10-24 | 2008-03-26 | 中铁大桥局集团第五工程有限公司 | Construction method for bridge steel box basket arch |
| CN101476293A (en) * | 2009-01-16 | 2009-07-08 | 广东省长大公路工程有限公司 | Non-stand construction method for large bridge arch rib |
| CN101672011A (en) * | 2009-10-13 | 2010-03-17 | 中铁二局股份有限公司 | Steel tube arch rib vertical lifting method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002167710A (en) * | 2000-11-30 | 2002-06-11 | Nkk Corp | Steel pipe joint structure and pipe truss bridge construction method |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002201609A (en) * | 2000-12-28 | 2002-07-19 | Ps Corp | Construction method for concrete arch bridge |
| KR20070087902A (en) * | 2006-01-27 | 2007-08-29 | 노윤근 | Method for constructing steel and wood compounded bridge getting along with environment using steel-wood compound segment members manu factured by strongly connecting steel and wood |
| CN101054791A (en) * | 2007-05-09 | 2007-10-17 | 华东交通大学 | Joist type cable arch bridge structure and its construction method |
| CN101148860A (en) * | 2007-10-24 | 2008-03-26 | 中铁大桥局集团第五工程有限公司 | Construction method for bridge steel box basket arch |
| CN101476293A (en) * | 2009-01-16 | 2009-07-08 | 广东省长大公路工程有限公司 | Non-stand construction method for large bridge arch rib |
| CN101672011A (en) * | 2009-10-13 | 2010-03-17 | 中铁二局股份有限公司 | Steel tube arch rib vertical lifting method |
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| CN102493347A (en) | 2012-06-13 |
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Address after: 430415 Hubei Province, Wuhan city Xinzhou District of Yangluo Economic Development Zone No. 117 Pan Long Lu Applicant after: Wuchuan Heavy Engineering Co., Ltd. Address before: 430415 Hubei Province, Wuhan city Xinzhou District of Yangluo Economic Development Zone No. 117 Pan Long Lu Applicant before: Wuchuan Heavy Engineering Co.,Ltd. |
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