CN103273689B - A kind of concrete prefabricated board, shell structure with covering and composite material grid - Google Patents
A kind of concrete prefabricated board, shell structure with covering and composite material grid Download PDFInfo
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- CN103273689B CN103273689B CN201310229829.4A CN201310229829A CN103273689B CN 103273689 B CN103273689 B CN 103273689B CN 201310229829 A CN201310229829 A CN 201310229829A CN 103273689 B CN103273689 B CN 103273689B
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Abstract
The invention discloses a kind of concrete prefabricated board, shell structure with covering and composite material grid, comprise composite material orthogonal grid layer, composite material skin and concrete laying; Described composite material orthogonal grid layer, composite material skin and concrete laying alternately superpose setting, and described composite material orthogonal grid layer is arranged between composite material skin and concrete laying.The present invention have lightweight, intensity is high, rigidity is large, cracking resistance, corrosion resistant high-quality performance; There is the feature that easy construction is rapid, be convenient to industrialization processing simultaneously, be applicable to various plate faces engineering.
Description
Technical field
The present invention relates to the various plate faces system in building field, specifically with concrete prefabricated board, the shell structure of covering and composite material grid, can be used as a kind of Concrete Structure prefabricated board (shell) for the various plate faces system in various bridge floor pallet engineering, indoor and outdoor ground laying project, tunnel-liner engineering and China Democratic National Construction Association field.
Background technology
Traditional reinforced concrete prefabricated board (shell), due to xoncrete structure cracking in use, easily makes air and moisture invade and causes the corrosion of reinforcing bar and then cause potential safety hazard.
Summary of the invention
The object of the invention is for prior art Problems existing, a kind of cracking resistance, corrosion-resistant and a kind of concrete prefabricated board, the shell structure with covering and composite material grid with good Coating combination performance and flexible processing technique are provided.
The technical solution used in the present invention is: a kind of concrete prefabricated board, shell structure with covering and composite material grid, comprise and draw together composite material orthogonal grid layer, composite material skin and concrete laying;
Described composite material orthogonal grid layer, composite material skin and concrete laying alternately superpose setting, and described composite material orthogonal grid layer is arranged between composite material skin and concrete laying.
As preferably, concrete laying is provided with on the upside of described composite material orthogonal grid layer, lower surface is provided with composite material skin, this covering can serve as template during casting concrete, can participate in again the cooperative bearing of shaping rear prefabricated board, tension place, concrete prefabricated board (shell) downside have employed composite material orthogonal grid layer and strengthens.
As preferably, concrete laying is provided with on the upside of described composite material orthogonal grid layer, lower surface is provided with composite material skin, has additional composite material orthogonal grid layer again on the upside of concrete laying, and this composite material orthogonal grid layer upper surface has additional composite material skin again.
As preferably, described composite material orthogonal grid layer lower surface is provided with concrete laying, and upper surface is provided with composite material skin.
As preferably, described concrete laying can be chosen flexibly according to the purposes of prefabricated board, comprises ordinary structural concrete, thermal insulation concrete, architectural concrete, water-proof concrete, refractory concrete etc.
As preferably, described composite material orthogonal grid layer and composite material skin are all adopted fiber and resin and are formed by mould pressing process solidification; Fiber adopts carbon fiber, glass fibre, basalt fibre, aramid fiber or the interior assorted fibre containing steel wire, and resin adopts unsaturated polyester (UP), vinylite, epoxy resin or phenolic resins.
Beneficial effect: the present invention has the orthogonal grid layer of resin base fiber reinforced composite material (with covering) of lightweight, the plurality of advantages such as high-strength, corrosion-resistant by adding at concrete prefabricated board (shell) tension place, make this prefabricated board have lightweight, intensity is high, rigidity is large, cracking resistance, corrosion resistant high-quality performance; There is the feature that easy construction is rapid, be convenient to industrialization processing simultaneously, be applicable to various plate faces engineering.
Accompanying drawing explanation
Fig. 1 is the embodiment of the present invention 1 concrete prefabricated board, shell structure schematic diagram;
Fig. 2 is the side sectional view of Fig. 1 structure;
Fig. 3 is the embodiment of the present invention 2 concrete prefabricated board, shell structure schematic diagram;
Fig. 4 is the side sectional view of Fig. 3 structure;
Fig. 5 is the embodiment of the present invention 3 concrete prefabricated board, shell structure schematic diagram;
Fig. 6 is the side sectional view of Fig. 5 structure;
Fig. 7 is the embodiment of the present invention 4 concrete prefabricated board, shell structure schematic diagram;
Fig. 8 is the side sectional view of Fig. 7 structure;
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
Embodiment 1
As shown in the figures 1 and 2, grid-stiffened composite structure Concrete Structure prefabricated board with covering of the present invention, it comprises composite material orthogonal grid layer 1, composite material orthogonal grid layer 1 is composite material orthogonal flase floor (long 1000mm, wide 500mm), composite material orthogonal flase floor is 7mm orthogonal grid rib by thickness is formed (flase floor unit size is decided to be 30mm × 30mm, and grid rib height is decided to be 40mm) by mould pressing process solidification.Have additional at the lower surface of the positive flase floor of composite the composite material skin 2 that thickness is 6mm, the concrete laying 3 that thickness is 80mm is built in the upside of it and composite material orthogonal flase floor.
Embodiment 2
As shown in figure 3 or 4, grid-stiffened composite structure Concrete Structure prefabricated board with covering of the present invention, and upper and lower surface is equipped with flase floor, it comprises composite material orthogonal grid layer 1, composite material orthogonal grid layer 1 is composite material orthogonal flase floor (long 1000mm, wide 500mm), composite material orthogonal flase floor is 7mm orthogonal grid rib by thickness is formed (flase floor unit size is decided to be 30mm × 30mm, and grid rib height is decided to be 40mm) by mould pressing process solidification.Have additional on the upper and lower surface of composite material orthogonal flase floor the composite material skin 2 that thickness is 6mm, between two pieces of flase floors, be provided with the concrete laying 3 that thickness is 70mm.
Embodiment 3
As shown in Fig. 5 or 6, the prefabricated shell of grid-stiffened composite structure Concrete Structure with covering of the present invention (curved, concrete laying are in outside), it comprises composite material orthogonal grid layer 1 composite material orthogonal grid layer 1 is composite material orthogonal grid shell (radius of curvature of housing is 450mm), composite material orthogonal grid shell is 7mm orthogonal grid rib by thickness is formed (grid shell unit size is decided to be 35mm × 20mm, and grid rib height is decided to be 30mm) by mould pressing process solidification.Have additional at the lower surface of the positive grid shell of composite the composite material skin 2 that thickness is 6mm, the concrete laying 3 that thickness is 70mm is built in the upside of it and composite material orthogonal grid shell.
Embodiment 4
As shown in Fig. 7 or 8, the prefabricated shell of grid-stiffened composite structure Concrete Structure with covering of the present invention (curved, concrete laying are in inner side), it comprises composite material orthogonal grid layer 1, composite material orthogonal grid 1 is composite material orthogonal grid shell (radius of curvature of housing is 500mm), composite material orthogonal grid shell is 7mm orthogonal grid rib by thickness is formed (grid shell unit size is decided to be 40mm × 80mm, and grid rib height is decided to be 35mm) by mould pressing process solidification.Have additional at the upper surface of the positive grid shell of composite the composite material skin 2 that thickness is 6mm, the concrete laying 3 that thickness is 70mm is built in the downside of it and composite material orthogonal grid shell.
The preparation method of the composite material orthogonal flase floor in above-mentioned 4 embodiments and its subsidiary composite material skin mainly adopts die press technology for forming, and its preparation technology is as follows:
A, elder generation make according to the specification (comprising: the height of grill unit size, grid rib and thickness) of required flase floor the steel mold matched;
B, in punching block each unit gap in add resin and (comprising: unsaturated polyester (UP), vinylite, epoxy resin, phenolic resins etc.), and in each gap of punching block unit, be wound around mutually orthogonal fibre bundle equably by Filament-wound Machine technology and (comprise: carbon fiber, glass fibre, basalt fibre, aramid fiber or the interior assorted fibre containing steel wire), and the number of times be wound around is determined by the height of grid rib, the fiber cloth of finally laying preliminary wetting on punching block surface (comprising: uniaxially, biaxially or multiaxis to carbon fiber, glass fibre, aramid fiber and hybridization fiber cloth etc.), and the laying number of plies can be determined flexibly according to the thickness of lower surface covering,
C, the glass fibre curing molding in resin will be immersed in step b by mould pressing process, and form composite material orthogonal grid layer 1 after the demoulding and be accompanied with composite material skin 2;
D, configure concrete laying 3(neatly according to the purposes of prefabricated board and comprise normal concrete, resin concrete, architectural concrete etc.), subsequently deployed concrete is directly cast on the flase floor made in step c.Now, the template when covering of flase floor can serve as concreting;
E, finally according to code requirement, the concrete in steps d is carried out being the maintenance of 28 days the length of time after, form the grid-stiffened composite structure Concrete Structure prefabricated board (shell) with covering.
It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.The all available prior art of each part not clear and definite in the present embodiment is realized.
Claims (1)
1., with a concrete prefabricated plate structure for covering and composite material grid, it is characterized in that: comprise composite material orthogonal grid layer, composite material skin and concrete laying;
Described composite material orthogonal grid layer, composite material skin and concrete laying alternately superpose setting, and described composite material orthogonal grid layer is arranged between composite material skin and concrete laying;
Be provided with concrete laying on the upside of described composite material orthogonal grid layer, lower surface is provided with composite material skin, has additional composite material orthogonal grid layer again on the upside of concrete laying, and this composite material orthogonal grid layer upper surface has additional composite material skin again;
Described composite material orthogonal grid layer and composite material skin are all adopted fiber and resin and are formed by mould pressing process solidification; Fiber adopts carbon fiber, glass fibre, basalt fibre, aramid fiber or the interior assorted fibre containing steel wire, and resin adopts unsaturated polyester (UP), vinylite, epoxy resin or phenolic resins;
The preparation method of the above-mentioned concrete prefabricated plate structure with covering and composite material grid, comprises the following steps:
A, the first specification according to required flase floor, comprising: the height of grill unit size, grid rib and thickness, make the steel mold matched;
B, in punching block each unit gap in add resin, described resin comprises: unsaturated polyester (UP), vinylite, epoxy resin or phenolic resins, and in each gap of punching block unit, be wound around mutually orthogonal fibre bundle by Filament-wound Machine technology equably, described fibre bundle is glass fibre, and the number of times be wound around is determined by the height of grid rib, the fiber cloth of preliminary wetting is finally laid on punching block surface, described fiber cloth be uniaxially or multiaxis to glass fabric, and lay the number of plies determine according to the thickness of lower surface covering;
C, the glass fibre curing molding in resin will be immersed in step b by mould pressing process, and form composite material orthogonal grid layer after the demoulding and be accompanied with composite material skin;
D, configure concrete laying neatly according to the purposes of prefabricated board, subsequently deployed concrete is directly cast on the grid layer made in step c; Now, the template when covering of grid layer can serve as concreting;
E, finally the concrete in steps d is carried out being the maintenance of 28 days the length of time after, formed with covering and grid-stiffened composite structure Concrete Structure prefabricated board.
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| CN201310229829.4A CN103273689B (en) | 2013-06-08 | 2013-06-08 | A kind of concrete prefabricated board, shell structure with covering and composite material grid |
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| CN201310229829.4A CN103273689B (en) | 2013-06-08 | 2013-06-08 | A kind of concrete prefabricated board, shell structure with covering and composite material grid |
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| CN103273689B true CN103273689B (en) | 2016-03-09 |
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| CN104074114A (en) * | 2014-07-11 | 2014-10-01 | 武汉理工大学 | Three-dimensional honeycomb reinforced concrete product made from composite material and preparation method of product |
| CN105178161B (en) * | 2015-06-05 | 2016-12-07 | 山东聚源玄武岩纤维股份有限公司 | Basalt fibre board concrete combination beam and preparation method thereof and beam bridge |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203418813U (en) * | 2013-06-08 | 2014-02-05 | 南京工业大学 | Concrete precast slab/shell structure provided with covering and composite material grid |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203418813U (en) * | 2013-06-08 | 2014-02-05 | 南京工业大学 | Concrete precast slab/shell structure provided with covering and composite material grid |
Non-Patent Citations (2)
| Title |
|---|
| 建筑节能结构体系应用与研究评述;魏金波等;《建筑节能》;20111231;第39卷(第12期);第4节 * |
| 纤维增强复合材料及其在结构工程中的应用研究;刘伟庆等;《2010年海峡两岸功能性复合材料论坛论文集》;20101117;前言部分、第1.1，1.2节、第2.8节以及附图2(b) * |
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