CN102383376B - 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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- CN102383376B CN102383376B CN201110231834XA CN201110231834A CN102383376B CN 102383376 B CN102383376 B CN 102383376B CN 201110231834X A CN201110231834X A CN 201110231834XA CN 201110231834 A CN201110231834 A CN 201110231834A CN 102383376 B CN102383376 B CN 102383376B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 42
- 239000010959 steel Substances 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000000465 moulding Methods 0.000 title claims abstract description 16
- 230000003014 reinforcing effect Effects 0.000 claims description 42
- 238000003466 welding Methods 0.000 claims description 15
- 239000000725 suspension Substances 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 6
- 230000002787 reinforcement Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 11
- 238000003908 quality control method Methods 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000004904 shortening Methods 0.000 abstract 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
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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 a kind of large-tonnage reinforcing bar bound finished product member ground moulding and integral hoisting method.
Background technology
Along with the development of China's economic construction, the input energetically of infrastructure, the project of building heavy construction in city is increasing.Large-tonnage reinforcing bar bound finished product member in infrastructure construction, such as the bridge pier top cap of large bridge, was all to adopt the mode of artificial work high above the ground colligation to construct in the past.Due to the long construction period of this method, the more difficult control of construction quality, and exist the potential safety hazard of personal height operation, thus affected the progress of whole duration.Along with the raising of people for beautiful understanding, in bridge pier top cap design, hyperbolic configuration has appearred, because the cross section of this hyperbolic bridge pier top cap can't position colligation in high-altitude, and the error of colligation is often larger, and can't proofread and correct; And, after colligation becomes finished product member on the ground, can't utilize again at present big machinery to be lifted into the finished product member installation site.
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, large-tonnage reinforcing bar bound finished product member ground moulding and integral hoisting method that can the larger reduction of erection time.
In order to achieve the above object, large-tonnage reinforcing bar bound finished product member ground moulding provided by the invention and integral hoisting method comprise the following step carried out in order:
1) at first by the staff by the outline line of large-tonnage reinforcing bar bound finished product member and calculate by weight and the frame bar setting-out that obtains on the ground, position, frame bar crosspoint is 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 forms, and the reinforcing bar crosspoint is fixed by the method for spot welding, in order to avoid in hoisting process, distortion is scattered;
2) lower end of many pull bars is welded on respectively to the position in each frame bar crosspoint and outline line and frame bar crosspoint;
3) reinforced mesh identical with first floor reinforced mesh structure of colligation multilayer successively then, after every layer of reinforced mesh colligation completes, by its standoff distance be placed on lower one deck reinforced mesh directly over, and immediately with pull bar on corresponding site spot welding fix, carry out successively from bottom to top, make thus large-tonnage reinforcing bar bound finished product member;
4) at the end face of large-tonnage reinforcing bar bound finished product member, the lifting framed bent is installed, the lifting framed bent consists 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 lifting truss erection completes, by the side firm welding of pull bar upper end with vertical channel-section steel, and use L-type reinforcing bar firm welding between horizontal channel-section steel on the lifting framed bent and vertical channel-section steel, then by the horizontal and vertical reinforcement crosspoint firm welding on large-tonnage reinforcing bar bound finished product member side, in order to avoid in hoisting process, distortion is scattered;
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 between channel-section steel, adopting the mode of full weld;
7) lower end of many wire rope is tied up to respectively on a plurality of round steel hangers, the upper end of several wire rope is connected to simultaneously on a pulley and forms one group of suspension centre, the purpose that pulley is set is the stressing conditions that uses it to adjust every group of suspension centre, proofread and correct in time level and the fine setting lifting direction of lifting framed bent, stressed evenly to guarantee each suspension centre, finally utilize suspender will lift framed bent by pulley and wire rope and be lifted to the required installation place of large-tonnage reinforcing bar bound finished product member together with large-tonnage reinforcing bar bound finished product member one, can complete thus large-tonnage reinforcing bar bound finished product member ground moulding and integral hoisting process.
In step 2) in, crooked in order to prevent that pull bar from toppling, in the both sides of pull bar, be provided with many oblique bearing bars.
Large-tonnage reinforcing bar bound finished product member ground moulding provided by the invention and integral hoisting method are the good finished product members of colligation at first on the ground, then on this finished product member, make the lifting framed bent, finally utilizing suspender will lift framed bent lifts and puts in place together with finished product member, not only can solve like this constructional deficiency that large-tonnage reinforcing bar bound finished product member in the past can't utilize the big machinery lifting, and can effectively shorten the construction period, the potential safety hazard of having avoided simultaneously the colligation construction of artificial high-altitude to bring.In addition, because large-tonnage reinforcing bar bound finished product member is that colligation completes on the ground, therefore be convenient to quality control, and adopt the distortion of the latter while lifting framed bent lifting large-tonnage reinforcing bar bound finished product member little, good integrity.
The accompanying drawing explanation
Fig. 1-Fig. 7 is each step operating process schematic diagram while adopting large-tonnage reinforcing bar bound finished product member ground moulding provided by the invention and integral hoisting method.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, large-tonnage reinforcing bar bound finished product member ground moulding provided by the invention and integral hoisting method are elaborated.
As Fig. 1-shown in Figure 7, large-tonnage reinforcing bar bound finished product member ground moulding provided by the invention and integral hoisting method comprise the following step carried out in order:
1) at first by the staff by the outline line 1 of large-tonnage reinforcing bar bound finished product member and calculate by weight and frame bar 2 setting-outs that obtain on the ground, frame bar 2 positions, crosspoint are 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 forms, and the reinforcing bar crosspoint is fixed by the method for spot welding, in order to avoid in hoisting process, distortion is scattered;
2) lower end of many pull bars 3 is welded on respectively to the position in each frame bar 2 crosspoint and outline line 1 and frame bar 2 crosspoints;
3) reinforced mesh identical with first floor reinforced mesh 4 structures of colligation multilayer successively then, after every layer of reinforced mesh colligation completes, by its standoff distance be placed on lower 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, make thus large-tonnage reinforcing bar bound finished product member 6;
4) at the end face of large-tonnage reinforcing bar bound finished product member 6, lifting framed bent 7 is installed, lifting framed bent 7 consists 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, by the side firm welding of pull bar 3 upper ends with vertical channel-section steel 10, and use L-type reinforcing bar 9 firm welding between horizontal channel-section steel 8 on lifting framed bent 7 and vertical channel-section steel 10, then by the horizontal and vertical reinforcement crosspoint firm welding on large-tonnage reinforcing bar bound finished product member 6 sides, in order to avoid in hoisting process, distortion is scattered;
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 between channel-section steel 10, adopting the mode of full weld;
7) lower end of many wire rope 13 is tied up to respectively on a plurality of round steel hangers 11, the upper end of several wire rope 13 is connected to simultaneously on a pulley 12 and forms one group of suspension centre, the purpose that pulley 12 is set is the stressing conditions that uses it to adjust every group of suspension centre, proofread and correct in time level and the fine setting lifting direction of lifting framed bent 7, stressed evenly to guarantee each suspension centre, finally utilize suspender 14 will lift framed bent 7 by pulley 12 and wire rope 13 and be lifted to large-tonnage reinforcing bar bound finished product member 6 required installation places together with large-tonnage reinforcing bar bound finished product member 6 one, can complete thus large-tonnage reinforcing bar bound finished product member ground moulding and integral hoisting process.
In step 2) in, crooked in order to prevent that pull bar 3 from toppling, in the both sides of pull bar 3, be provided with many oblique bearing bars 5.
Claims (2)
1. a large-tonnage reinforcing bar bound finished product member ground moulding and integral hoisting method, it is characterized in that: described large-tonnage reinforcing bar bound finished product member ground moulding and integral hoisting method comprise the following step carried out in order:
1) at first by the staff by the outline line of large-tonnage reinforcing bar bound finished product member (1) and calculate by weight and frame bar (2) setting-out that obtains on the ground, then the first floor reinforced mesh (4) formed by outline line (1) and many frame bars (2) according to the setting-out colligation, and the reinforcing bar crosspoint is fixed by the method for spot welding, in order to avoid in hoisting process, distortion is scattered;
2) lower end of many pull bars (3) is welded on respectively to the position in each frame bar (2) crosspoint and outline line (1) and frame bar (2) crosspoint;
3) reinforced mesh identical with first floor reinforced mesh (4) structure of colligation multilayer successively then, after every layer of reinforced mesh colligation completes, by its standoff distance be placed on lower one deck reinforced mesh directly over, and with the upper corresponding site spot welding of pull bar (3), fix immediately, carry out successively from bottom to top, make thus large-tonnage reinforcing bar bound finished product member (6);
4) at the end face of large-tonnage reinforcing bar bound finished product member (6), lifting framed bent (7) is installed, the many transverse channel steels (8) that lifting framed bent (7) is arranged by standoff distance and the vertical channel-section steel (10) that is placed on transverse channel steels (8) top form, and make 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), by the side firm welding of pull bar (3) upper end with vertical channel-section steel (10), and use L-type reinforcing bar (9) firm welding between the upper horizontal channel-section steel (8) of lifting framed bent (7) and vertical channel-section steel (10), then by the horizontal and vertical reinforcement crosspoint firm welding on large-tonnage reinforcing bar bound finished product member (6) side, in order to avoid in hoisting process, distortion is scattered;
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 between channel-section steel (10), adopting the mode of full weld;
7) lower end of many wire rope (13) is tied up to respectively on a plurality of round steel hangers (11), the upper end of several wire rope (13) is connected to simultaneously a pulley (12) and above forms one group of suspension centre, finally utilize suspender (14) will lift framed bent (7) by pulley (12) and wire rope (13) and be lifted to the required installation place of large-tonnage reinforcing bar bound finished product member (6) together with large-tonnage reinforcing bar bound finished product member (6), can complete thus large-tonnage reinforcing bar bound finished product member ground moulding and integral hoisting process.
2. large-tonnage reinforcing bar bound finished product member ground moulding according to claim 1 and integral hoisting method, it is characterized in that: in step 2) in, crooked in order to prevent that pull bar (3) from toppling, in the both sides of pull bar (3), be provided with many oblique bearing bars (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| Publication Number | Publication Date |
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| CN102383376A CN102383376A (en) | 2012-03-21 |
| CN102383376B true CN102383376B (en) | 2013-11-27 |
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| CN201110231834XA Expired - Fee Related 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI517928B (en) * | 2013-03-11 | 2016-01-21 | 潤弘精密工程事業股份有限公司 | Method for welding reinforcing bars and adjustment system for welding reinforcing bars doing the same |
| CN107700362B (en) * | 2017-09-30 | 2019-04-12 | 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100504031C (en) * | 2007-04-18 | 2009-06-24 | 上海市第二市政工程有限公司 | Reinforcing bar cage hoisting structure for canal wall 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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