CN102995560B - Thin-wall hollow pier lifting frame and use method thereof - Google Patents
Thin-wall hollow pier lifting frame and use method thereof Download PDFInfo
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- CN102995560B CN102995560B CN201110266621.0A CN201110266621A CN102995560B CN 102995560 B CN102995560 B CN 102995560B CN 201110266621 A CN201110266621 A CN 201110266621A CN 102995560 B CN102995560 B CN 102995560B
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Abstract
Disclosed is a thin-wall hollow pier lifting frame. The lifting frame is used for a thin-wall hollow pier of height of more than 20 m. The lifting comprises a frame unit and a lifting unit and is characterized in that the frame unit comprises four cross beams (5), wherein four cross beams (5) are fixedly welded to form a groined shape, X-shaped bridging (7) is welded and fixed to four corners of a square shape of the center of the groined shape, one ends of four vertical posts (1) are respectively welded to four corners of the square shape, vertical posts are vertical to the cross beams (5), diagonal braces (2) are arranged among each of vertical posts (1) and adjacent two cross beams (5), one ends of the diagonal braces (2) are fixedly welded to the vertical posts (1), the other ends of the diagonal braces (2) are fixedly welded to the cross beams (5), the lifting unit comprises 8 chain blocks (3) and 8 wire rope sleeves (4), the chain blocks and the wire rope sleeves are connected in a hook mode and the chain blocks (3) are installed on two ends of the cross beams (5) through the wire rope sleeves (4). The lifting frame is simple in production, low in cost and convenient to use.
Description
Technical field
The present invention relates to the mould-lifting device in the construction of a kind of bridge engineering height pier stud, specifically, is that a kind of Thin-wall Hollow Pier puies forward mould bases and using method.
Background technology
High pier stud construction is comparatively common in current highway construction, particularly Freeway of Mountain Range, in high pier stud construction, usually use the method such as tower crane, hydraulic lifting to carry mould as steel form, but using tower crane to carry mould makes operation comparatively loaded down with trivial details, construction period is longer, efficiency is low, and is all improved in construction precision, efficiency etc. with hydraulic lifting method, but construction cost is higher.
The modeling method of carrying of therefore known tower crane and hydraulic lifting also exists above-mentioned all inconvenience and problem.
Summary of the invention
Object of the present invention, be to propose a kind of structure simple, easy to operate, use Thin-wall Hollow Pier flexibly to carry mould bases.
Another object of the present invention, be to propose a kind of structure simple, easy to operate, use Thin-wall Hollow Pier flexibly to put forward mould bases using method.
For achieving the above object, technical solution of the present invention is:
A kind of Thin-wall Hollow Pier carries mould bases, for being highly greater than the Thin-wall Hollow Pier of 20m, comprising skeleton unit and lift unit, it is characterized in that:
Described skeleton unit, comprise four crossbeams and be interconnected and be admittedly welded into groined type, the bridging being provided with X-shaped in the square shape corner, center of described groined type is welded and fixed; One end of four root posts is welded on described square shape corner respectively, and and beam vertical, be provided with diagonal brace between every root post and adjacent two crossbeams, one end of diagonal brace is welded in column admittedly, and the other end is welded in crossbeam admittedly;
Described lift unit, comprises eight Chain blocks and eight steel wire loops, being connected for linking up with steel wire loop of Chain block;
Wherein: described Chain block is arranged on the both ends of four crossbeams each via steel wire loop.
Thin-wall Hollow Pier of the present invention is carried mould bases and can also be further achieved by the following technical measures.
Aforesaid Thin-wall Hollow Pier carries mould bases, and wherein said skeleton unit also comprises and is provided with eight pieces of rectangular leg-of-mutton deep floors, and one bar right-angle side welds with column, and another right-angle side and end are provided with the beam welding of steel wire loop.
Aforesaid Thin-wall Hollow Pier carries mould bases, and the height of wherein said column and the length dimension of crossbeam can need to regulate according to the construction in Thin-wall Hollow Pier cross section.
Aforesaid Thin-wall Hollow Pier carries mould bases, and the connecting welding between all components of wherein said skeleton unit is manual electric arc welding, and weld bead height is 6mm.
Aforesaid Thin-wall Hollow Pier carries mould bases, and the welding rod of wherein said manual electric arc welding is J422 welding rod.
A kind of Thin-wall Hollow Pier puies forward mould bases using method, it is characterized in that comprising the following steps:
A, weight determination steel wire loop specification, model and Chain block lifting parameter according to Thin-wall Hollow Pier template are supporting;
B, routinely construction method are after ground completes the first mould concrete placings 12 hours and the reinforcing bar of colligation second mould completes, utilize tower crane will carry mould bases to mention, the column carrying mould bases to be aimed in the second mould the space between the reinforcing bar of outside, be placed on concrete face that the first mould builds from top to bottom;
C, the Chain block hook carrying mould bases catch on the first mould template, and when after the first mould template bolt looseness, pull Chain block to make to carry mould bases and template is promoted one-tenth second mould template in place, fix template on request, form joint is tight, spillage when preventing concrete from pouring into a mould;
D, utilize tower crane will carry mould bases to winch to ground, then in the second mould template concreting;
E, repetition step b ~ d, circulation construction is until arrive Thin-wall Hollow Pier object height successively.
Thin-wall Hollow Pier of the present invention is put forward mould bases using method and can also be further achieved by the following technical measures.
Aforesaid method, the height selecting aspect ratio at every turn to carry mould of wherein said column is more than or equal to 1.5m.
After adopting technique scheme, Thin-wall Hollow Pier of the present invention carries mould bases and using method has the following advantages:
1, structure is simple, easy to operate;
2, use flexibly, that can select suitable dimension according to actual conditions in work progress carries mould bases;
3, significantly Construction Cost is saved.
Accompanying drawing explanation
Fig. 1 is the structural representation that the Thin-wall Hollow Pier of the embodiment of the present invention carries mould bases;
Fig. 2 is the plan view of Fig. 1.
In figure: 1 column, 2 diagonal braces, 3 Chain blocks, 4 steel wire loops, 5 crossbeams, 6 deep floors, 7 bridgings.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing thereof, the present invention is illustrated further.
Embodiment 1
Fig. 1 is the structural representation that the Thin-wall Hollow Pier of the embodiment of the present invention carries mould bases, and Fig. 2 is the plan view of Fig. 1.As shown in the figure, described skeleton unit, comprise four crossbeams 5 and be interconnected and be admittedly welded into groined type, the bridging 7 being provided with X-shaped in the square shape corner, center of described groined type is welded and fixed; One end of four root posts 1 is welded on described square shape corner respectively, and vertical with crossbeam 5, and be provided with diagonal brace 2 between every root post 1 and adjacent two crossbeams 5, one end of diagonal brace 2 is welded in column 1 admittedly, and the other end is welded in crossbeam 5 admittedly; Described skeleton unit also comprises and is provided with eight pieces of rectangular leg-of-mutton deep floors 6, and a right-angle side of the strong floor 6 of every block right-angled triangle welds with column, and another right-angle side and end are provided with the beam welding of steel wire loop.Connecting welding between all components of described skeleton unit is manual electric arc welding, and weld bead height is 6mm.The welding rod of described manual electric arc welding is J422 welding rod.
Described lift unit, comprises eight Chain blocks 3 and eight steel wire loops 4, being connected for linking up with steel wire loop of Chain block;
Wherein: described Chain block 3 is arranged on the both ends of four crossbeams 5 each via steel wire loop 4.
Described skeleton unit, its central post 1 is steel pipe, nominal diameter DN140mm, wall thickness 4mm, is highly 4.5m; Crossbeam 5 is steel pipe, nominal diameter DN140mm, wall thickness 4mm, and length is respectively 2.8 and 4.2m; For guaranteed strength and rigidity add diagonal brace 2 equal leg angle L75 × 5mm, bridging 7 equal leg angle L75 × 5mm, deep floor 6 steel plate t=10mm.
Described lift unit is combined by steel wire loop 4 and Chain block 3.The diameter of steel wire loop 4 is 14mm, and the lifting capacity of Chain block 3 is 5t.
Embodiment 2
A kind of Thin-wall Hollow Pier puies forward mould bases using method, it is characterized in that comprising the following steps:
A, weight determination steel wire loop specification, model and Chain block lifting parameter according to Thin-wall Hollow Pier template are supporting, and the actual diameter of steel wire loop 4 of selecting is 14mm, and the lifting capacity of Chain block 3 is 5t;
B, routinely construction method are after ground completes the first mould concrete placings 12 hours and the reinforcing bar of colligation second mould completes, utilize tower crane will carry mould bases to mention, the column carrying mould bases to be aimed in the second mould the space between the reinforcing bar of outside, be placed on concrete face that the first mould builds from top to bottom;
C, the Chain block hook carrying mould bases catch on the first mould template, and when after the first mould template bolt looseness, pull Chain block to make to carry mould bases and template is promoted one-tenth second mould template in place, fix template on request, form joint is tight, spillage when preventing concrete from pouring into a mould;
D, utilize tower crane will carry mould bases to winch to ground, then in the second mould template concreting;
E, repetition step b ~ d, circulation construction is until arrive Thin-wall Hollow Pier object height successively.
Thin-wall Hollow Pier of the present invention puies forward mould bases using method, and its height at every turn carrying mould is 3m.
Above embodiment is used for illustrative purposes only, but not limitation of the present invention, person skilled in the relevant technique, without departing from the spirit and scope of the present invention, can also make various conversion or change.Therefore, all equivalent technical schemes also should belong to category of the present invention, should be limited by each claim.
Claims (7)
1. Thin-wall Hollow Pier carries a mould bases, for being highly greater than the Thin-wall Hollow Pier of 20m, comprising skeleton unit and lift unit, it is characterized in that:
Described skeleton unit, comprise four crossbeams (5) and be interconnected and be admittedly welded into groined type, the bridging (7) being provided with X-shaped in the square shape corner, center of described groined type is welded and fixed; One end of four root posts (1) is welded on described square shape corner respectively, and it is vertical with crossbeam (5), be provided with diagonal brace (2) between every root post (1) and adjacent two crossbeams (5), one end of diagonal brace (2) is welded in column (1) admittedly, and the other end is welded in crossbeam (5) admittedly;
Described lift unit, comprises eight Chain blocks (3) and eight steel wire loops (4), being connected for linking up with steel wire loop of Chain block;
Wherein: described Chain block (3) is arranged on the both ends of four crossbeams (5) each via steel wire loop (4).
2. Thin-wall Hollow Pier as claimed in claim 1 carries mould bases, it is characterized in that, described skeleton unit also comprises and is provided with eight pieces of rectangular leg-of-mutton deep floors (6), and one bar right-angle side welds with column, and another right-angle side and end are provided with the beam welding of steel wire loop.
3. Thin-wall Hollow Pier as claimed in claim 1 carries mould bases, it is characterized in that, the height of described column and the length dimension of crossbeam need to regulate according to the construction in Thin-wall Hollow Pier cross section.
4. Thin-wall Hollow Pier as claimed in claim 1 carries mould bases, and it is characterized in that, the connecting welding between all components of described skeleton unit is manual electric arc welding, and weld bead height is 6mm.
5. Thin-wall Hollow Pier as claimed in claim 4 carries mould bases, and it is characterized in that, the welding rod of described manual electric arc welding is J422 welding rod.
6. Thin-wall Hollow Pier puies forward a mould bases using method, it is characterized in that comprising the following steps:
A, weight determination steel wire loop specification, model and Chain block lifting parameter according to Thin-wall Hollow Pier template are supporting;
B, routinely construction method are after ground completes the first mould concrete placings 12 hours and the reinforcing bar of colligation second mould completes, utilize tower crane will carry mould bases to mention, the column carrying mould bases to be aimed in the second mould the space between the reinforcing bar of outside, be placed on concrete face that the first mould builds from top to bottom;
C, the Chain block hook carrying mould bases catch on the first mould template, and when after the first mould template bolt looseness, pull Chain block to make to carry mould bases and template is promoted one-tenth second mould template in place, fix template on request, form joint is tight, spillage when preventing concrete from pouring into a mould;
D, utilize tower crane will carry mould bases to winch to ground, then in the second mould template concreting;
E, repetition step b ~ d, circulation construction is until arrive Thin-wall Hollow Pier object height successively.
7. Thin-wall Hollow Pier as claimed in claim 6 puies forward mould bases using method, and it is characterized in that, the height selecting aspect ratio at every turn to carry mould of described column is more than or equal to 1.5m.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110266621.0A CN102995560B (en) | 2011-09-09 | 2011-09-09 | Thin-wall hollow pier lifting frame and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110266621.0A CN102995560B (en) | 2011-09-09 | 2011-09-09 | Thin-wall hollow pier lifting frame and use method thereof |
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| Publication Number | Publication Date |
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| CN102995560A CN102995560A (en) | 2013-03-27 |
| CN102995560B true CN102995560B (en) | 2015-06-24 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108505442A (en) * | 2017-02-24 | 2018-09-07 | 中国有色金属工业第六冶金建设有限公司 | A kind of thin-wall hollow high-pier reinforcing bar support for shuttering and construction method |
| CN107838571B (en) * | 2017-09-13 | 2023-06-13 | 中国原子能科学研究院 | Welding device and welding method for slender thin-wall hollow shaft |
| CN109944164B (en) * | 2019-03-13 | 2021-02-26 | 中建市政工程有限公司 | Self-elevating hollow thin-wall pier roller die system and construction method thereof |
| CN113303276A (en) * | 2021-06-17 | 2021-08-27 | 烟台市海洋经济研究院 | Pipe fitting |
Citations (3)
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|---|---|---|---|---|
| CN101148862A (en) * | 2007-10-16 | 2008-03-26 | 中铁大桥局集团第四工程有限公司 | Pier body cap cracking body outside stress reinforcing method |
| FR2934193A1 (en) * | 2008-07-25 | 2010-01-29 | Coffrage Nony | Shuttering device for finger-jointing concrete beams to support e.g. flyover, has large shutter movably mounted on free edge of small shutter, where shutters partially define shuttering zone in predefined direction |
| CN101781878A (en) * | 2010-01-21 | 2010-07-21 | 中铁二十局集团有限公司 | Integral lifting template of main pylon of single-pylon cable-stayed bridge without dorsal cables and lifting construction method thereof |
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2011
- 2011-09-09 CN CN201110266621.0A patent/CN102995560B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101148862A (en) * | 2007-10-16 | 2008-03-26 | 中铁大桥局集团第四工程有限公司 | Pier body cap cracking body outside stress reinforcing method |
| FR2934193A1 (en) * | 2008-07-25 | 2010-01-29 | Coffrage Nony | Shuttering device for finger-jointing concrete beams to support e.g. flyover, has large shutter movably mounted on free edge of small shutter, where shutters partially define shuttering zone in predefined direction |
| CN101781878A (en) * | 2010-01-21 | 2010-07-21 | 中铁二十局集团有限公司 | Integral lifting template of main pylon of single-pylon cable-stayed bridge without dorsal cables and lifting construction method thereof |
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| 万能杆件及无外架吊篮法施工在薄壁空心墩中的应用;蔡循元;《建设机械技术与管理》;20011230(第12期);第31-32页 * |
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