CN104131709B - The detachable rigidity aggrandizement apparatus of superimposed sheet - Google Patents
The detachable rigidity aggrandizement apparatus of superimposed sheet Download PDFInfo
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- CN104131709B CN104131709B CN201410323893.3A CN201410323893A CN104131709B CN 104131709 B CN104131709 B CN 104131709B CN 201410323893 A CN201410323893 A CN 201410323893A CN 104131709 B CN104131709 B CN 104131709B
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Abstract
The invention discloses the detachable rigidity aggrandizement apparatus of a kind of superimposed sheet, described device comprises billet, connecting bolt, upper steel plate and steelframe, described billet is arranged on the upper surface of prefabricated lower plywood, and be provided with billet prepared screw-bolt hole, described upper steel plate is arranged on above billet, and be provided with upper steel plate prepared screw-bolt hole, described connecting bolt is embedded in prefabricated lower plywood, described billet is fixedly connected with by connecting bolt with upper steel plate, described steelframe is fixedly mounted on the upper surface of upper steel plate, described steelframe is made up of a steel bar girder upper chord and two long muscle of steel bar girder lower chord, connected by the short muscle of steel bar girder lower chord between the long muscle of described steel bar girder lower chord, connected by steel bar girder web member between described steel bar girder upper chord and the long muscle of steel bar girder lower chord.Advantage of the present invention is: structure is simple, practical, construction cost is low, easy construction, the prefabricated lower plywood of improvement lifting stage stress performance.
Description
Technical field
The present invention relates to a kind of the realm of building construction device, in particular, relate to a kind of device preventing the prefabricated lower plywood of Shear Behavior of R. c. Laminated Slabs distortion and cracking in transport and construction.
Background technology
Some highrise buildings adopt laminated floor slab at present, do not need on-the-spot formwork, easy construction, and cost are relatively low during construction.The thickness of laminated floor slab pre-erection is generally 40-50mm, and rigidity is less, if do not take measures in transport and hoisting process, easily excessive deformation occurs, even ruptures.To the problem of this insufficient rigidity, the ways such as the prestressing force opposite sex superimposed sheet, sandwich prestressing force superimposed sheet with ribbing, prestressed concrete inverted T shape superimposed sheet can be adopted to solve; But these methods to placing installation and build control technology require high, quality control difficulty is higher, and expense is also higher.Truss-type Composite Plate can be adopted in addition to solve the problem of insufficient rigidity, and specific practice be entirety by reinforcing bar binding in steel bar girder and plate, is increased the rigidity of prefabricated lower plywood by distributing bar truss.But this method is at serviceability limit stage, truss web is except strengthening the shear behavior at new-old concrete interface, very little on the functional performance impact of floor.Non-removable steel bar girder also can be adopted to improve rigidity and the bearing capacity of prefabricated lower plywood, but this method can only play a role, and can not make full use of reinforcing bar, significantly add cost in transport and construction stage; In addition use this steel bar girder in fixed form, depth of truss is also subject to the restriction of superimposed sheet thickness, when span of slab is larger, must arrange more steel bar girder.
Summary of the invention
The present invention is directed to the deficiency of existing product, and provide that a kind of structure is simple, practical, construction cost is low, easy construction, the prefabricated lower plywood of improvement is at the detachable rigidity aggrandizement apparatus of superimposed sheet of lifting stage stress performance.
The detachable rigidity aggrandizement apparatus of superimposed sheet of the present invention, comprise prefabricated lower plywood, billet, connecting bolt, upper steel plate, the steel form of steelframe and concreting, described billet is arranged on the upper surface of prefabricated lower plywood, billet is provided with billet prepared screw-bolt hole, the concentric of described billet prepared screw-bolt hole is fixedly connected with steel loop, the steel cylinder of top seal is set with outside described steel loop, described upper steel plate is arranged on above billet, upper steel plate is provided with upper steel plate prepared screw-bolt hole, described connecting bolt is embedded in prefabricated lower plywood, described billet is fixedly connected with by connecting bolt with upper steel plate, described steelframe is fixedly mounted on the upper surface of upper steel plate, described steelframe is made up of a steel bar girder upper chord and two long muscle of steel bar girder lower chord, connected by the short muscle of steel bar girder lower chord between the long muscle of described steel bar girder lower chord, connected by steel bar girder web member between described steel bar girder upper chord and the long muscle of steel bar girder lower chord.
The internal diameter of described steel loop is identical with the external diameter size of billet prepared screw-bolt hole.Described steel cylinder upper bottom surface top is fixedly welded with steel hook.The bar diameter of the long muscle of described steel bar girder lower chord is not less than 16mm, and the diameter of described steel bar girder web member is not less than 14mm, and the bar diameter of the long muscle of described steel bar girder lower chord is greater than 25mm, and the height of described steelframe is not less than 50mm.The wall thickness of described steel cylinder and steel loop is not less than 1mm.The height of described steel loop is not less than 3mm.Building of the prefabricated lower plywood of aspect ratio of described steel cylinder is highly highly not less than 50mm.Described steel form is provided with the steel plate groove of the fixing end of fixed installation billet.The set bolt groove matched with billet prepared screw-bolt hole is provided with in steel plate groove of the described fixing end.
The invention has the beneficial effects as follows: (1) structure is simple, be easy to manufacture, cost is low; (2) practical, safe and reliable, easy construction, the prefabricated lower plywood of improvement are at lifting stage stress performance; (3) detachably recycle, significantly reduce construction costs; (4) strong adaptability, can arrange the quantity of the height of rigid frame and number, billet, flexibly to meet the rigidity requirement of the prefabricated lower plywood of different size.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of billet of the present invention;
Fig. 3 is that in Fig. 2, bolt hole portion divides partial enlarged drawing;
Fig. 4 is the sectional drawing along A-A in Fig. 3;
Fig. 5 is the structural representation of upper steel plate of the present invention;
Fig. 6 is the structural representation of truss of the present invention;
Fig. 7 is the welding stereogram of upper steel plate of the present invention and truss;
Fig. 8 is the structural representation of the steel form of concreting of the present invention.
In figure: billet 1, connecting bolt 2, upper steel plate 3, steelframe 4, billet prepared screw-bolt hole 5, steel cylinder 6, steel loop 7, upper steel plate prepared screw-bolt hole 8, steel bar girder upper chord 9, steel bar girder web member 10, the long muscle of steel bar girder lower chord 11, the short muscle 12 of steel bar girder lower chord, steel form 13, steel plate groove of the fixing end 14, set bolt groove 15, steel hook 16.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
In the drawings, superimposed sheet of the present invention detachable rigidity aggrandizement apparatus forms primarily of billet 1, connecting bolt 2, upper steel plate 3, steelframe 4, billet prepared screw-bolt hole 5, steel cylinder 6, steel loop 7, upper steel plate prepared screw-bolt hole 8, steel bar girder upper chord 9, steel bar girder web member 10, the long muscle of steel bar girder lower chord 11, the short muscle 12 of steel bar girder lower chord, steel form 13, steel plate groove of the fixing end 14, set bolt groove 15, steel hook 16.
Described billet 1 is arranged on the upper surface of prefabricated lower plywood, billet 1 is provided with billet prepared screw-bolt hole 5, the concentric of described billet prepared screw-bolt hole 5 is fixedly connected with steel loop 7, the steel cylinder 6 of top seal is set with outside described steel loop 7, described upper steel plate 3 is arranged on above billet 1, upper steel plate 3 is provided with upper steel plate prepared screw-bolt hole 8, described connecting bolt 2 is embedded in prefabricated lower plywood, described billet 1 is fixedly connected with by connecting bolt 2 with upper steel plate 3, described steelframe 4 is fixedly mounted on the upper surface of upper steel plate 3, described steelframe 4 is made up of a steel bar girder upper chord 9 and two long muscle 11 of steel bar girder lower chord, connected by the short muscle 12 of steel bar girder lower chord between the long muscle of described steel bar girder lower chord 11, connected by steel bar girder web member 10 between described steel bar girder upper chord 9 and the long muscle 11 of steel bar girder lower chord.
The internal diameter of described steel loop 7 is identical with the external diameter size of billet prepared screw-bolt hole 5.Described steel cylinder 6 upper bottom surface top is fixedly welded with steel hook 16.The bar diameter of the long muscle 11 of described steel bar girder lower chord is not less than 16mm, and the diameter of described steel bar girder web member 10 is not less than 14mm, and the bar diameter of the long muscle 11 of described steel bar girder lower chord is greater than 25mm, and the height of described steelframe 4 is not less than 50mm.The wall thickness of described steel cylinder 6 and steel loop 7 is not less than 1mm.The height of described steel loop 7 is not less than 3mm.Building of the prefabricated lower plywood of aspect ratio of described steel cylinder 6 is highly highly not less than 50mm.Described steel form 13 is provided with the steel plate groove of the fixing end 14 of fixed installation billet 1.The set bolt groove 15 matched with billet prepared screw-bolt hole 5 is provided with in steel plate groove of the described fixing end 14.
The detachable rigidity aggrandizement apparatus of superimposed sheet of the present invention, conveniently build, concrete slab formwork for placing is processed, the size of the steel form 13 selected, the number of number and position and bolt and position is determined according to the size of prefabricated lower plywood, then steel plate groove of the fixing end 14 and set bolt groove 15 is processed, billet 1 and connecting bolt 2 are installed on fluting place at steel form 13.
When making device of the present invention, first according to suitable billet 1 number of superimposed sheet prefabricated lower plywood size Selection and truss number, when described prefabricated lower plywood is wider than 3300mm, truss number is no less than 3, during the described prefabricated lower plywood wide 3300mm of being less than, truss number is no less than 2, and described billet number is all no less than 3, and choose described billet 1 length little 200-300mm wider than described prefabricated lower plywood; Choose suitable steel form 13 again, described billet 1 is fixed with connecting bolt 2, and on the steel loop 7 of billet 1, be inserted in the steel cylinder 6 of 50mm at least higher than preformed layer plate thickness, described steel loop height is no less than 3mm, internal diameter and billet prepared screw-bolt hole 5 equivalence or bigger, and weld with billet 1, steel cylinder 6 internal diameter is more bigger than steel loop 7 external diameter, make steel cylinder 6 just in time be inserted in steel loop 7 interior and fixing, fix weldable steel hook 16 at steel cylinder 6 upper bottom surface top; Then billet 1 and bolt component are fixedly mounted in the groove of steel form 13, steel form 13, billet 1 and steel cylinder 6 smear appropriate release agent, by normal construction flow process assembling reinforcement concreting, reach after prescribed strength until concrete, steel cylinder 6 is removed by the steel hook 16 on lift steel cylinder 6, fix the upper steel plate 3 shown in Fig. 7 and the component of truss welding by connecting bolt 2 again, form coefficient member integrated; Finally lift, make crane pre-set operation on suspension centre at pricncipal rafter, lifted and temporary support after setting completed, can by each for device component removal.
Claims (9)
1. the detachable rigidity aggrandizement apparatus of superimposed sheet, comprise prefabricated lower plywood, billet (1), connecting bolt (2), upper steel plate (3), the steel form (13) of steelframe (4) and concreting, it is characterized in that, described billet (1) is arranged on the upper surface of prefabricated lower plywood, billet (1) is provided with billet prepared screw-bolt hole (5), the concentric of described billet prepared screw-bolt hole (5) is fixedly connected with steel loop (7), the steel cylinder (6) of top seal is set with outside described steel loop (7), described upper steel plate (3) is arranged on billet (1) top, upper steel plate (3) is provided with upper steel plate prepared screw-bolt hole (8), described connecting bolt (2) is embedded in prefabricated lower plywood, described billet (1) is fixedly connected with by connecting bolt (2) with upper steel plate (3), described steelframe (4) is fixedly mounted on the upper surface of upper steel plate (3), described steelframe (4) has a steel bar girder upper chord (9) and the two long muscle of steel bar girder lower chord (11) compositions, connected by the short muscle of steel bar girder lower chord (12) between the long muscle of described steel bar girder lower chord (11), connected by steel bar girder web member (10) between described steel bar girder upper chord (9) and the long muscle of steel bar girder lower chord (11).
2. the detachable rigidity aggrandizement apparatus of superimposed sheet according to claim 1, is characterized in that, the internal diameter of described steel loop (7) is identical with the external diameter size of billet prepared screw-bolt hole (5).
3. the detachable rigidity aggrandizement apparatus of superimposed sheet according to claim 1, is characterized in that, described steel cylinder (6) upper bottom surface top is fixedly welded with steel hook (16).
4. the detachable rigidity aggrandizement apparatus of superimposed sheet according to claim 1, it is characterized in that, the bar diameter of the long muscle of described steel bar girder lower chord (11) is not less than 16mm, the diameter of described steel bar girder web member (10) is not less than 14mm, the bar diameter of the long muscle of described muscle truss lower chord (11) is greater than 25mm, and the height of described steelframe (4) is not less than 50mm.
5. the detachable rigidity aggrandizement apparatus of superimposed sheet according to claim 1, is characterized in that, the wall thickness of described steel cylinder (6) and steel loop (7) is not less than 1mm.
6. the detachable rigidity aggrandizement apparatus of superimposed sheet according to claim 1, is characterized in that, the height of described steel loop (7) is not less than 3mm.
7. the detachable rigidity aggrandizement apparatus of superimposed sheet according to claim 1, is characterized in that, building of the prefabricated lower plywood of aspect ratio of described steel cylinder (6) is highly highly not less than 50mm.
8. the detachable rigidity aggrandizement apparatus of superimposed sheet according to claim 1, is characterized in that, described steel form (13) is provided with fixing end steel plate groove (14) of fixed installation billet (1).
9. the detachable rigidity aggrandizement apparatus of superimposed sheet according to claim 8, is characterized in that, is provided with the set bolt groove (15) matched with billet prepared screw-bolt hole (5) in described fixing end steel plate groove (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410323893.3A CN104131709B (en) | 2014-07-09 | 2014-07-09 | The detachable rigidity aggrandizement apparatus of superimposed sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410323893.3A CN104131709B (en) | 2014-07-09 | 2014-07-09 | The detachable rigidity aggrandizement apparatus of superimposed sheet |
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| Publication Number | Publication Date |
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| CN104131709A CN104131709A (en) | 2014-11-05 |
| CN104131709B true CN104131709B (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410323893.3A Active CN104131709B (en) | 2014-07-09 | 2014-07-09 | The detachable rigidity aggrandizement apparatus of superimposed sheet |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110241959A (en) * | 2019-06-06 | 2019-09-17 | 中南林业科技大学 | A kind of superimposed sheet and its construction method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2323050Y (en) * | 1997-10-15 | 1999-06-09 | 曹新明 | Space triangular reinforced concrete slab-truss |
| CN2818421Y (en) * | 2005-06-13 | 2006-09-20 | 刘建康 | Upper bearing frame for laminated floorslab construction |
| CN101029523B (en) * | 2007-03-02 | 2010-08-25 | 张慕贞 | Straight suspender on ceiling and its installation |
| KR101021854B1 (en) * | 2008-02-21 | 2011-03-17 | 주식회사 종합건축사사무소근정 | Half precast composite slab and this production technique |
| JP5264646B2 (en) * | 2009-08-03 | 2013-08-14 | 鹿島建設株式会社 | Truss composite floor slab |
| KR20110068654A (en) * | 2009-12-16 | 2011-06-22 | 장승훈 | Deck plate using sandwitch pannel |
| CN102337762A (en) * | 2011-07-18 | 2012-02-01 | 从卫民 | Hoisting and connecting device of prefabricated sheet for laminated floor slab |
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| CN104131709A (en) | 2014-11-05 |
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