CN102383376A - Ground moulding and integral hoisting method for large-tonnage steel bar bound finished product member - Google Patents
Ground moulding and integral hoisting method for large-tonnage steel bar bound finished product member Download PDFInfo
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- CN102383376A CN102383376A CN201110231834XA CN201110231834A CN102383376A CN 102383376 A CN102383376 A CN 102383376A CN 201110231834X A CN201110231834X A CN 201110231834XA CN 201110231834 A CN201110231834 A CN 201110231834A CN 102383376 A CN102383376 A CN 102383376A
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Abstract
The invention discloses a ground moulding and integral hoisting method for a large-tonnage steel bar bound finished product member. The method comprises the following steps of: firstly, binding a finished product member on the ground; then manufacturing a hoisting bent frame on the finished product member; and finally, hoisting the hoisting bent frame and the finished product member in place together by utilizing a lifting appliance. Accordingly, the method not only can be used for overcoming the construction defect that the traditional large-tonnage steel bar bound finished product member can not be hoisted by a large machine, but also can be used for effectively shortening the construction period and preventing potential safety hazard brought by artificial high-altitude binding construction. In addition, because the large-tonnage steel bar bound finished product member is bound on the ground, the large-tonnage steel bar bound finished product member is convenient for quality control; and the large-tonnage steel bar bound finished product member has less deformation and high integrity after being hoisted by the hoisting bent frame.
Description
Technical field
The invention belongs to the bridge construction technical field, particularly relate to member ground moulding of a kind of large-tonnage reinforcing bar colligation finished product and integral hoisting method.
Background technology
Along with the continuous development of China's economic construction, the input energetically of infrastructure, the project of building heavy construction in the city is increasing.Large-tonnage reinforcing bar colligation finished product member in the infrastructure construction such as the bridge pier top cap of large bridge, all was to adopt the mode of artificial work high above the ground colligation to construct in the past.Control because the long construction period of this method, construction quality are difficult, and exist the potential safety hazard of personal height operation, thereby influenced the progress of whole duration.Along with people's has occurred hyperbolic configuration for the raising of the understanding of U.S.A in the design of bridge pier top cap, because the cross section of this hyperbolic bridge pier top cap can't position colligation in the high-altitude, and the error of colligation is often bigger, and can't proofread and correct; And on the ground behind the colligation finished product member, can't utilize big machinery to lift finished product member installation site at present again.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide a kind of easy to operate, working security is high, and construction effect is good, member ground moulding of large-tonnage reinforcing bar colligation finished product and integral hoisting method that can the big reduction of erection time.
In order to achieve the above object, large-tonnage reinforcing bar colligation finished product provided by the invention member ground moulding and integral hoisting method comprise the following step that carries out in order:
1) at first by the staff with the outline line of large-tonnage reinforcing bar colligation finished product member and calculate by weight and the frame bar setting-out that obtains on the ground; Position, frame bar crosspoint is a hoisting point position; Simultaneously for the position of pull bar is installed; Then according to the setting-out colligation by outline line and many first floor reinforced mesh 4 that frame bar is formed, and the reinforcing bar crosspoint fixed with the method for spot welding, in order to avoid distortion is scattered in the hoisting process;
2) lower end of many pull bars is welded on the position in each frame bar crosspoint and outline line and frame bar crosspoint respectively;
3) colligation multilayer successively and the identical reinforced mesh of first floor reinforced mesh structure then; After every layer of reinforced mesh colligation accomplished; With its standoff distance be placed on down one deck reinforced mesh directly over; And immediately with pull bar on corresponding site spot welding fix, carry out successively from bottom to top, process large-tonnage reinforcing bar colligation finished product member thus;
4) at the end face of large-tonnage reinforcing bar colligation finished product member the lifting framed bent is installed; The lifting framed bent is made up of with the vertical channel-section steel that is placed on transverse channel steels top many transverse channel steels of standoff distance setting, and makes transverse channel steels consistent with the frame bar crosspoint with the crosspoint of vertical channel-section steel;
5) after the installation of lifting framed bent; With the side firm welding of pull bar upper end with vertical channel-section steel; And on the lifting framed bent transverse channel steels and vertically between the channel-section steel with L shaped steel muscle firm welding; Then with the horizontal and vertical reinforcement crosspoint firm welding on the large-tonnage reinforcing bar colligation finished product member side, in order to avoid distortion is scattered in the hoisting process;
6) on the lifting framed bent, be positioned at position on every side, every pull bar upper end a round steel hanger that Open Side Down is installed respectively, the round steel hanger is connected with vertically adopting the mode of full weld between the channel-section steel;
7) lower end with many wire rope ties up to respectively on a plurality of round steel hangers; The upper end of several wire rope is connected simultaneously on the pulley and constitutes one group of suspension centre; The purpose that pulley is set is to utilize it to adjust the stressing conditions of every group of suspension centre; In time proofread and correct the level and fine setting lifting direction of lifting framed bent; Stressed evenly to guarantee each suspension centre, utilize suspender to pass through pulley and wire rope at last and will lift framed bent and lift by crane the required installation place of large-tonnage reinforcing bar colligation finished product member together with large-tonnage reinforcing bar colligation finished product member one, can accomplish member ground moulding of large-tonnage reinforcing bar colligation finished product and integral hoisting process thus.
In step 2) in, crooked in order to prevent that pull bar from toppling, be provided with many oblique bearing bars in the both sides of pull bar.
Large-tonnage reinforcing bar colligation finished product provided by the invention member ground moulding and integral hoisting method are the good finished product members of colligation at first on the ground; On this finished product member, make the lifting framed bent then; Utilizing suspender will lift framed bent at last lifts together with the finished product member and puts in place; Not only can solve the constructional deficiency that large-tonnage reinforcing bar colligation finished product member in the past can't utilize the big machinery lifting like this; And can shorten the construction period effectively, the potential safety hazard of having avoided the colligation construction of artificial high-altitude to be brought simultaneously.In addition, accomplish, therefore be convenient to quality control, and adopt the latter's when lifting framed bent lifting large-tonnage reinforcing bar colligation finished product member distortion little, good integrity because large-tonnage reinforcing bar colligation finished product member is colligation on the ground.
Description of drawings
Fig. 1-Fig. 7 is each procedure process sketch map when adopting large-tonnage reinforcing bar colligation finished product provided by the invention member ground moulding and integral hoisting method.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment large-tonnage reinforcing bar colligation finished product provided by the invention member ground moulding and integral hoisting method are elaborated.
Like Fig. 1-shown in Figure 7, large-tonnage reinforcing bar colligation finished product provided by the invention member ground moulding and integral hoisting method comprise the following step that carries out in order:
1) at first by the staff with the outline line 1 of large-tonnage reinforcing bar colligation finished product member and calculate by weight and frame bar 2 setting-outs that obtain on the ground; Position, frame bar 2 crosspoint is a hoisting point position; Simultaneously for the position of pull bar 3 is installed; Then according to the setting-out colligation by outline line 1 and many first floor reinforced mesh 4 that frame bar 2 is formed, and the reinforcing bar crosspoint fixed with the method for spot welding, be scattered in order to avoid be out of shape in the hoisting process;
2) lower end of many pull bars 3 is welded on the position in each frame bar 2 crosspoint and outline line 1 and frame bar 2 crosspoints respectively;
3) colligation multilayer successively and the identical reinforced mesh of first floor reinforced mesh 4 structures then; After every layer of reinforced mesh colligation accomplished; With its standoff distance be placed on down one deck reinforced mesh directly over; And immediately with pull bar 3 on corresponding site spot welding fix, carry out successively from bottom to top, process large-tonnage reinforcing bar colligation finished product member 6 thus;
4) at the end face of large-tonnage reinforcing bar colligation finished product member 6 lifting framed bent 7 is installed; Lifting framed bent 7 is made up of with the vertical channel-section steel 10 that is placed on transverse channel steels 8 tops the many transverse channel steels 8 of standoff distance setting, and makes transverse channel steels 8 consistent with frame bar 2 crosspoints with the crosspoint of vertical channel-section steel 10;
5) after 7 installations of lifting framed bent; With the side firm welding of pull bar 3 upper ends with vertical channel-section steel 10; And on lifting framed bent 7 transverse channel steels 8 and vertically between the channel-section steel 10 with L shaped steel muscle 9 firm welding; Then with the horizontal and vertical reinforcement crosspoint firm welding on large-tonnage reinforcing bar colligation finished product member 6 sides, in order to avoid distortion is scattered in the hoisting process;
6) on lifting framed bent 7, be positioned at position on every side, every pull bar 3 upper ends a round steel hanger 11 that Open Side Down is installed respectively, round steel hanger 11 is connected with vertically adopting the mode of full weld between the channel-section steel 10;
7) lower end with many wire rope 13 ties up to respectively on a plurality of round steel hangers 11; The upper end of several wire rope 13 is connected simultaneously on the pulley 12 and constitutes one group of suspension centre; The purpose that pulley 12 is set is to utilize it to adjust the stressing conditions of every group of suspension centre; In time proofread and correct the level and fine setting lifting direction of lifting framed bent 7; Stressed evenly to guarantee each suspension centre, utilize suspender 14 will lift framed bent 7 at last and lift by crane large-tonnage reinforcing bar colligation finished product member 6 required installation places together with large-tonnage reinforcing bar colligation finished product member 6 one through pulley 12 and wire rope 13, can accomplish member ground moulding of large-tonnage reinforcing bar colligation finished product and integral hoisting process thus.
In step 2) in, crooked in order to prevent that pull bar 3 from toppling, be provided with many oblique bearing bars 5 in the both sides of pull bar 3.
Claims (2)
1. large-tonnage reinforcing bar colligation finished product member ground moulding and integral hoisting method, it is characterized in that: member ground moulding of described large-tonnage reinforcing bar colligation finished product and integral hoisting method comprise the following step that carries out in order:
1) at first by the staff with the outline line (1) of large-tonnage reinforcing bar colligation finished product member and calculate by weight and frame bar (2) setting-out that obtains on the ground; The first floor reinforced mesh of forming by outline line (1) and many frame bars (2) according to the setting-out colligation then (4); And the reinforcing bar crosspoint fixed with the method for spot welding, in order to avoid distortion is scattered in the hoisting process;
2) lower end of many pull bars (3) is welded on the position in each frame bar (2) crosspoint and outline line (1) and frame bar (2) crosspoint respectively;
3) colligation multilayer successively and the identical reinforced mesh of first floor reinforced mesh (4) structure then; After every layer of reinforced mesh colligation accomplished; With its standoff distance be placed on down one deck reinforced mesh directly over; And go up corresponding site spot welding with pull bar (3) immediately and fix, carry out successively from bottom to top, process large-tonnage reinforcing bar colligation finished product member (6) thus;
4) at the end face of large-tonnage reinforcing bar colligation finished product member (6) lifting framed bent (7) is installed; Lifting framed bent (7) is made up of standoff distance many transverse channel steels (8) that are provided with and the vertical channel-section steel (10) that is placed on transverse channel steels (8) top, and makes transverse channel steels (8) consistent with frame bar (2) crosspoint with the crosspoint of vertical channel-section steel (10);
5) after the installation of lifting framed bent (7); With the side firm welding of pull bar (3) upper end with vertical channel-section steel (10); And lifting between the last transverse channel steels (8) of framed bent (7) and the vertical channel-section steel (10) with L shaped steel muscle (9) firm welding; Then with the horizontal and vertical reinforcement crosspoint firm welding on large-tonnage reinforcing bar colligation finished product member (6) side, in order to avoid distortion is scattered in the hoisting process;
6) on lifting framed bent (7), be positioned at position on every side, every pull bar (3) upper end a round steel hanger (11) that Open Side Down is installed respectively, round steel hanger (11) is connected with vertically adopting the mode of full weld between the channel-section steel (10);
7) lower end with many wire rope (13) ties up to respectively on a plurality of round steel hangers (11); The upper end of several wire rope (13) is connected a pulley (12) simultaneously and upward constitutes one group of suspension centre; Utilize suspender (14) will lift framed bent (7) at last and lift by crane the required installation place of large-tonnage reinforcing bar colligation finished product member (6), can accomplish member ground moulding of large-tonnage reinforcing bar colligation finished product and integral hoisting process thus together with large-tonnage reinforcing bar colligation finished product member (6) through pulley (12) and wire rope (13).
2. large-tonnage reinforcing bar colligation finished product according to claim 1 member ground moulding and integral hoisting method is characterized in that: in step 2) in, crooked in order to prevent that pull bar (3) from toppling, be provided with many oblique bearing bars (5) in the both sides of pull bar (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110231834XA CN102383376B (en) | 2011-08-15 | 2011-08-15 | Ground moulding and integral hoisting method for large-tonnage steel bar bound finished product member |
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| CN201110231834XA CN102383376B (en) | 2011-08-15 | 2011-08-15 | Ground moulding and integral hoisting method for large-tonnage steel bar bound finished product member |
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| CN102383376B CN102383376B (en) | 2013-11-27 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104043909A (en) * | 2013-03-11 | 2014-09-17 | 润弘精密工程事业股份有限公司 | Steel bar welding method and steel bar welding adjusting system for implementing same |
| CN107700362A (en) * | 2017-09-30 | 2018-02-16 | 中国建筑土木建设有限公司 | Hoisting method of continuous beam segment web plate reinforcing steel bar |
| CN113668387A (en) * | 2021-07-08 | 2021-11-19 | 中交路桥建设有限公司 | Modularized construction method for pier body reinforcing steel bars |
Citations (3)
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| CN101046092A (en) * | 2007-04-18 | 2007-10-03 | 上海市第二市政工程有限公司 | Reinforcing bar cage hoisting structure for canal wal construction |
| CN201511439U (en) * | 2009-09-21 | 2010-06-23 | 中铁大桥局集团第四工程有限公司 | System for integrally binding and hoisting box girder steel reinforcement framework |
| CN201809042U (en) * | 2010-08-12 | 2011-04-27 | 中铁二十二局集团第一工程有限公司 | Lifting frame for lifting whole steel reinforcement framework of box beam |
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2011
- 2011-08-15 CN CN201110231834XA patent/CN102383376B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101046092A (en) * | 2007-04-18 | 2007-10-03 | 上海市第二市政工程有限公司 | Reinforcing bar cage hoisting structure for canal wal construction |
| CN201511439U (en) * | 2009-09-21 | 2010-06-23 | 中铁大桥局集团第四工程有限公司 | System for integrally binding and hoisting box girder steel reinforcement framework |
| CN201809042U (en) * | 2010-08-12 | 2011-04-27 | 中铁二十二局集团第一工程有限公司 | Lifting frame for lifting whole steel reinforcement framework of box beam |
Non-Patent Citations (2)
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| 厉家能: "焊接排架法钢筋绑扎工艺", 《建筑技术》, no. 01, 31 January 1982 (1982-01-31), pages 8 - 9 * |
| 孙晋一 杨学检: "大面积网架拔杆整体吊装技术在工程中的应用", 《2006年全国钢结构学术年会论文集》, 31 December 2006 (2006-12-31), pages 184 - 186 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104043909A (en) * | 2013-03-11 | 2014-09-17 | 润弘精密工程事业股份有限公司 | Steel bar welding method and steel bar welding adjusting system for implementing same |
| CN107700362A (en) * | 2017-09-30 | 2018-02-16 | 中国建筑土木建设有限公司 | Hoisting method of continuous beam segment web plate reinforcing steel bar |
| CN113668387A (en) * | 2021-07-08 | 2021-11-19 | 中交路桥建设有限公司 | Modularized construction method for pier body reinforcing steel bars |
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| CN102383376B (en) | 2013-11-27 |
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