CN104131709A - Rigidity enhancing device with detachable laminated plates - Google Patents
Rigidity enhancing device with detachable laminated plates Download PDFInfo
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- CN104131709A CN104131709A CN201410323893.3A CN201410323893A CN104131709A CN 104131709 A CN104131709 A CN 104131709A CN 201410323893 A CN201410323893 A CN 201410323893A CN 104131709 A CN104131709 A CN 104131709A
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- steel
- billet
- steel bar
- bar girder
- superimposed sheet
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Abstract
The invention discloses a rigidity enhancing device with detachable laminated plates. The rigidity enhancing device comprises steel base plates, connecting bolts, upper steel plates and steel frames. The steel base plates are mounted on the upper surfaces of lower prefabricated laminates and are provided with steel base plate reserved bolt holes. The upper steel plates are mounted above the steel base plates and are provided with upper steel plate reserved bolt holes. The connecting bolts are embedded in the lower prefabricated laminates. The steel base plates and the upper steel plates are fixedly connected through the connecting bolts. The steel frames are fixedly mounted on the upper surfaces of the upper steel plates. Each steel frame is composed of a steel bar truss upper chord and two steel bar truss lower chord long ribs, wherein the steel bar truss lower chord long ribs are connected through steel bar truss lower chord short ribs, and the steel bar truss upper chord and the steel bar truss lower chord long ribs are connected through steel bar truss web members. The rigidity enhancing device has the advantages of being simple in structure, high in practicability, low in construction cost, convenient to construct and capable of improving the stress performance of the lower prefabricated laminates in the hoisting stage.
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 that prevents that the prefabricated lower plywood of Shear Behavior of R. c. Laminated Slabs is out of shape and ftractures in transport and construction.
Background technology
Some highrise buildings adopt laminated floor slab at present, do not need on-the-spot formwork when construction, easy construction, and also cost is relatively low.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, excessive deformation easily occurs, and even ruptures.To the problem of this insufficient rigidity, can adopt the ways such as prestressing force opposite sex superimposed sheet, sandwich prestressing force superimposed sheet with ribbing, prestressed concrete inverted T shape superimposed sheet to solve; But these methods to the equipment of building and build control technology require high, quality control difficulty is higher, and expense is also higher.Can adopt in addition Truss-type Composite Plate to solve the problem of insufficient rigidity, specific practice is to be entirety by reinforcing bar binding in steel bar girder and plate, increases the rigidity of prefabricated lower plywood by distributing bar truss.But this method is in normal operational phase, and truss web is except strengthening the shear behavior at new-old concrete interface, very little on the functional performance impact of floor.Also can adopt non-removable steel bar girder to improve rigidity and the bearing capacity of prefabricated lower plywood, but this method can only play a role in transport and construction stage, can not make full use of reinforcing bar, significantly increase cost; In addition use this machine made steel bar girder, depth of truss is also subject to the restriction of superimposed sheet thickness, in the time that span of slab is larger, more steel bar girder must be set.
Summary of the invention
The present invention is directed to the deficiency of existing product, and provide a kind of simple in structure, practical, construction cost is low, easy construction, the prefabricated lower plywood of improvement be 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, on billet, be provided with billet prepared screw-bolt hole, on the concentric of described billet prepared screw-bolt hole, be fixedly connected with steel loop, described steel loop is set with the steel cylinder of top seal outward, described upper steel plate is arranged on billet top, on upper steel plate, 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, between the long muscle of described steel bar girder lower chord, connect by the short muscle of steel bar girder lower chord, between described steel bar girder upper chord and the long muscle of steel bar girder lower chord, connect by steel bar girder web member.
The external diameter size of the internal diameter of described steel loop and billet prepared screw-bolt hole is identical.Described steel cylinder upper bottom surface top is fixedly welded with steel hook.The bar diameter of the long muscle of described muscle truss 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 muscle truss 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.The prefabricated lower plywood of aspect ratio of described steel cylinder build the highly high 50mm of being not less than.Described steel form is provided with the steel plate groove of the fixing end of fixed installation billet.In steel plate groove of the described fixing end, be provided with the set bolt groove matching with billet prepared screw-bolt hole.
The invention has the beneficial effects as follows: (1) is simple in structure, 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.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of billet of the present invention;
Fig. 3 is bolt hole part partial enlarged drawing in Fig. 2;
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 11 of steel bar girder lower chord, 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, the detachable rigidity aggrandizement apparatus of superimposed sheet of the present invention is mainly made up 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 11 of steel bar girder lower chord, 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, on billet 1, be provided with billet prepared screw-bolt hole 5, on the concentric of described billet prepared screw-bolt hole 5, be fixedly connected with steel loop 7, the outer steel cylinder 6 that is set with top seal of described steel loop 7, described upper steel plate 3 is arranged on billet 1 top, on upper steel plate 3, be 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, between the long muscle 11 of described steel bar girder lower chord, connect by the short muscle 12 of steel bar girder lower chord, between the long muscle 11 of described steel bar girder upper chord 9 and steel bar girder lower chord, connect by steel bar girder web member 10.
The external diameter size of the internal diameter of described steel loop 7 and billet prepared screw-bolt hole 5 is identical.Described steel cylinder 6 upper bottom surface tops are fixedly welded with steel hook 16.The bar diameter of the long muscle 11 of described muscle truss 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 muscle truss 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.The prefabricated lower plywood of aspect ratio of described steel cylinder 6 build the highly high 50mm of being not less than.Described steel form 13 is provided with the steel plate groove of the fixing end 14 of fixed installation billet 1.In steel plate groove of the described fixing end 14, be provided with the set bolt groove 15 matching with billet prepared screw-bolt hole 5.
The detachable rigidity aggrandizement apparatus of superimposed sheet of the present invention, in order conveniently to build, concrete slab formwork for placing is processed, determine size, number and the position of steel form 13 and number and the position of bolt selected according to the size of prefabricated lower plywood, then at the 13 fixing end of processing of steel form steel plate groove 14 and set bolt groove 15, to billet 1 and connecting bolt 2 are installed on to fluting place.
While making device of the present invention, first according to the prefabricated lower plywood size Selection of superimposed sheet suitable billet 1 number and truss number, when described prefabricated lower plywood is wider than 3300mm, truss number is no less than 3, when the described wide 3300mm of being less than of prefabricated lower plywood, truss number is no less than 2, and described billet number is all no less than 3, and choose the wide little 200-300mm of prefabricated lower plywood described in described billet 1 Length Ratio; Choose again suitable steel form 13, described billet 1 is fixing with connecting bolt 2, and on the steel loop 7 of billet 1, be inserted in than the steel cylinder 6 of at least high 50mm of preformed layer plate thickness, described steel loop height is no less than 3mm, internal diameter and billet prepared screw-bolt hole 5 are equivalent or bigger, and weld with billet 1, and steel cylinder 6 internal diameters are more bigger than steel loop 7 external diameters, make steel cylinder 6 just in time be inserted in steel loop 7 and fix, the fixing weldable steel hook 16 at steel cylinder 6 upper bottom surface tops; Then by billet 1 and bolt component fixed in position in the groove of steel form 13, on steel form 13, billet 1 and steel cylinder 6, smear appropriate release agent, press normal construction flow process assembling reinforcement concreting, after concrete reaches prescribed strength, remove steel cylinder 6 by the steel hook 16 lifting on steel cylinder 6, the member with truss welding by the upper steel plate 3 shown in the fixing Fig. 7 of connecting bolt 2, forms coefficient member integrated again; Finally lifting, makes crane set in advance operation on suspension centre at pricncipal rafter, lift and temporary supporting after setting completed, can dismantle by the each member of device.
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, on billet (1), be provided with billet prepared screw-bolt hole (5), on the concentric of described billet prepared screw-bolt hole (5), be fixedly connected with steel loop (7), the outer steel cylinder (6) that is set with top seal of described steel loop (7), described upper steel plate (3) is arranged on billet (1) top, on upper steel plate (3), be 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 two long muscle of steel bar girder lower chord (11) composition, between the long muscle of described steel bar girder lower chord (11), connect by the short muscle of steel bar girder lower chord (12), between described steel bar girder upper chord (9) and the long muscle of steel bar girder lower chord (11), connect by steel bar girder web member (10).
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 muscle truss 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, the prefabricated lower plywood of aspect ratio of described steel cylinder (6) build the highly high 50mm of being not less than.
8. the detachable rigidity aggrandizement apparatus of superimposed sheet according to claim 1, is characterized in that, described steel form (13) is provided with the 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) matching 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104131709A true CN104131709A (en) | 2014-11-05 |
| CN104131709B CN104131709B (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410323893.3A Active CN104131709B (en) | 2014-07-09 | 2014-07-09 | The detachable rigidity aggrandizement apparatus of superimposed sheet |
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| CN (1) | CN104131709B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (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 |
| CN101029523A (en) * | 2007-03-02 | 2007-09-05 | 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 |
| 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 |
| JP5264646B2 (en) * | 2009-08-03 | 2013-08-14 | 鹿島建設株式会社 | Truss composite floor slab |
-
2014
- 2014-07-09 CN CN201410323893.3A patent/CN104131709B/en active Active
Patent Citations (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 |
| CN101029523A (en) * | 2007-03-02 | 2007-09-05 | 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 |
Non-Patent Citations (1)
| Title |
|---|
| 李忠富等: "《现代建筑生产管理理论》", 31 January 2013, article "《预制构件安装》", pages: 56-57 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| CN104131709B (en) | 2016-01-20 |
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