CN105881730A - FRP grid concrete composition board and manufacturing method thereof - Google Patents

FRP grid concrete composition board and manufacturing method thereof Download PDF

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Publication number
CN105881730A
CN105881730A CN201610402143.4A CN201610402143A CN105881730A CN 105881730 A CN105881730 A CN 105881730A CN 201610402143 A CN201610402143 A CN 201610402143A CN 105881730 A CN105881730 A CN 105881730A
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China
Prior art keywords
grid
concrete
frp
hole
layer
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CN201610402143.4A
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Chinese (zh)
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CN105881730B (en
Inventor
黄海林
李遨
祝明桥
吕伟荣
曾垂军
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Hunan University of Science and Technology
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Hunan University of Science and Technology
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Priority to CN201610402143.4A priority Critical patent/CN105881730B/en
Publication of CN105881730A publication Critical patent/CN105881730A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B23/00Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/0006Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects the reinforcement consisting of aligned, non-metal reinforcing elements
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/26Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/30Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure

Abstract

The invention discloses an FRP grid concrete composition board and a manufacturing method thereof. The FRP grid concrete composition board comprises an FRP grid and concrete poured into grid holes or concrete which is poured into the grid holes and poured on a grid surface layer; the FRP grid comprises longitudinal and transverse middle bearing rods or comprises the longitudinal and transverse middle bearing rods and edge bearing rods arranged at the periphery of the board, and the grid holes are defined by the middle bearing rods or defined by the middle bearing rods and the edge bearing rods; the sections of the middle bearing rods and the sections of the edge bearing rods are each shaped like a wedge, that is to say, the upper portions are narrower than the lower portions. According to the manufacturing method of the composition board, except a conventional pouring method, some special technological methods can be adopted due to the flexible and diverse composition structure. The FRP grid concrete composition board is small in self weight, flexible in design, high in bearing capacity and good in corrosion resistance and has the advantages of being simple in structure, convenient to use and wide in application.

Description

A kind of FRP grid concrete compoboard and manufacture method thereof
Technical field
The invention belongs to building or the bridge member of technical field of civil engineering, be specifically related to a kind of FRP grid Concrete combined board and manufacture method thereof.
Background technology
In civil engineering, FRP is a kind of new function shaped material, by fibrous material and resin through special work Skill is made, and has stronger tensile strength along machine direction, and FRP and concrete combined structure have excellence Mechanical property, be the focus studied at present, FRP grid and concrete combined board are a kind of New Type Combined Slabs. FRP grid and concrete combined board refer to casting concrete in the hole of FRP grid, on surface layer, are formed FRP concrete combined structure, FRP grid includes molding grating and pultrusion grid, and molding grating is longitudinal and transverse Carrier bar both direction is respectively provided with stronger resistance to tension, and the resistance to tension of pultrusion grid is mainly reflected in along lattice The single direction of grid height.Compared with traditional material, it is strong, anti-that FRP material has high-strength light, fatigue durability Fatigue behaviour waits well remarkable advantage, takes full advantage of with concrete combined board through the FRP grid of appropriate design The feature that FRP molding grating bending and tensile strength is high, concrete anti-compression performance is good, have bearing capacity strong, Conduct oneself with dignity lighter, corrosion-resistant and make and the advantage such as easy to use.
Summary of the invention
First purpose of the present invention is to provide that a kind of deadweight is less, flexible design, bearing capacity are strong, resistance to The FRP grid concrete compoboard that corrosive nature is good, its have simple in construction, easy to use, be widely used Feature.
First purpose of the present invention realizes by the following technical solutions: this FRP grid coagulation Local soil type's plywood, it includes FRP grid, and pour the concrete in grid hole or pour in Concrete in grid hole and on grid surface layer;Described FRP grid includes that the centre in two directions in length and breadth is held Carry bar, or include middle the carrier bar in two directions in length and breadth and the edge carrier bar of surrounding, by centre carrier bar, Or formed described grid hole by middle carrier bar and edge carrier bar;Described middle carrier bar and edge hold The section configuration carrying bar is that wedge shape, i.e. top are narrower, and bottom is wider.
Further, the height less than or equal to middle carrier bar of the concrete thickness in grid hole is poured described in Degree.
Further, a described grid hole at least not casting concrete, in hollow shape, when grid surface layer On when having poured concrete, reserving hole above corresponding hollow grid hole so that it is with on grate opening hole Under through.
Concrete, described FRP grid uses FRP molding grating or FRP pultrusion grid.
Second object of the present invention is to provide the manufacture method of above-mentioned FRP grid concrete compoboard. When the concrete thickness poured in grid hole needs to water less than on the height of middle carrier bar and grid surface layer When building concrete, one of its manufacture method is: be inverted by FRP grid, and in grid hole, cast is predetermined The concrete of thickness;FRP grid is again overturn after the concrete in grid hole reaches anticipated hardness, At FRP grid surrounding formwork supporting plate, grid surface layer pours the concrete of predetermined thickness, treats that concrete reaches Form removal after some strength.
When the concrete thickness poured in grid hole is less than on height and the grid surface layer of middle carrier bar When needing casting concrete, the two of its manufacture method are: when the concrete thickness poured in grid hole is less than When needing casting concrete on the height of middle carrier bar and grid surface layer, FRP grid is inverted, is falling Adding cushion block below the FRP grid postponed to raise, it is raised height and needs pouring concrete equal on grid surface layer Thickness;And at grid surrounding formwork supporting plate, pour into a mould concrete on grid hole inner concrete and grid surface layer simultaneously, Grid hole inner concrete is poured into predetermined altitude, form removal after concrete reaches some strength.
When the concrete thickness poured in grid hole is less than on height and the grid surface layer of middle carrier bar When needing casting concrete, the three of its manufacture method are: first supported the template of concrete on grid surface layer, The height of template exceedes the height needing pouring concrete on grid surface layer, has poured into a mould on the grid surface layer of predetermined thickness Concrete, is inverted FRP grid and is placed on above grid facing concrete, more mixed toward cast in grid hole Solidifying soil is to predetermined altitude, form removal after concrete reaches some strength.
The present invention compared with prior art has the advantage that
(1) simple in construction, designability is strong, and size is flexible and changeable, and dimensionally stable.
(2) each component can prefabricated complete, and field combinations uses, and is substantially shorter the duration.
(3) deadweight is lighter, it is not necessary to configuration reinforcement, greatly reduces the usage amount of reinforcing bar.
(4) corrosion resistance and good, good endurance.
(5) may be designed to orthogonal two-way same sex plate, more efficiently improve its bearing capacity.
Accompanying drawing explanation
Fig. 1 is the perspective view of the embodiment of the present invention 1.
Fig. 2 is the perspective view that the present invention includes the FRP grid of edge carrier bar.
Fig. 3 is the perspective view of the embodiment of the present invention 2.
Fig. 4 is the perspective view of the embodiment of the present invention 3.
Fig. 5 is the perspective view of the embodiment of the present invention 4.
Fig. 6 is the perspective view of the embodiment of the present invention 5.
Fig. 7 is the perspective view of the embodiment of the present invention 6.
Fig. 8, Fig. 9, Figure 10 are the top views of the embodiment of the present invention 7,8,9.
Detailed description of the invention
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings.
Embodiment 1:
Seeing Fig. 1, the present embodiment includes FRP grid 1 and concrete 2, and concrete 2 includes pouring in lattice Concrete eight in gate hole hole 4 and the concrete 9 on grid surface layer 7.It can be seen from figure 1 that FRP grid The 1 middle carrier bar 3 including two directions in length and breadth and the edge carrier bar 11 on both sides, by middle carrier bar 3 He Edge carrier bar 11 forms grid hole 4.The section configuration of middle carrier bar 3 and edge carrier bar 11 is Wedge shape, i.e. top 5 are narrower, and bottom 6 is wider.It is also shown in from Fig. 1, FRP grid 1 has lattice Not casting concrete 8, gate hole hole 4, in hollow shape, when casting concrete 9 on grid surface layer 7, in phase Reserving hole 10 above the hollow grid hole 4 answered, makes reserving hole 10 and grate opening hole 4 up/down perforation, It is easy to infiltration.
See Fig. 2, be the FRP grid surrounding of present invention structural representation when having an edge carrier bar.
Embodiment 2:
Seeing Fig. 3, embodiment 2 essentially consists in the difference of embodiment 1, the FRP lattice of embodiment 2 Grid 1 do not have edge carrier bar 11;It has in common that, pours the concrete eight in grid hole 4 Thickness less than the height of middle carrier bar 3.
In above-described embodiment 1 and embodiment 2, the thickness pouring the concrete eight in grid hole 4 is less than The height of middle carrier bar 3, and on grid surface layer 7, need casting concrete 9, its manufacture method mainly has Three kinds, as follows:
One, is inverted FRP grid 1, pours into a mould the concrete eight of predetermined thickness in grid hole 4;Treat Concrete eight in grid hole 4 overturns FRP grid 1, again at FRP grid 1 after reaching anticipated hardness Surrounding formwork supporting plate, pours the concrete 9 of predetermined thickness on grid surface layer 7, treats that concrete 2 reaches certain Form removal after intensity.
Its two, FRP grid 1 is inverted, adds cushion block below FRP grid 1 after inversion and raise, its Raise height equal to the thickness needing pouring concrete 9 on grid surface layer 7;And at grid surrounding formwork supporting plate, simultaneously Concrete 9 on cast grid hole 4 inner concrete 8 and grid surface layer 7, grid hole 4 inner concrete waters Build predetermined altitude, form removal after concrete reaches some strength.
Its three, first supported the template of concrete on grid surface layer 7, the height of template exceedes grid surface layer Need the height of pouring concrete 9 on 7, pour into a mould concrete 9 on the grid surface layer of predetermined thickness, by FRP lattice Grid 1 are inverted above the concrete 9 being placed on grid surface layer 7, then toward cast concrete eight in grid hole 4 To predetermined altitude, form removal after concrete reaches some strength.
Embodiment 3:
Seeing Fig. 4, embodiment 3 differs primarily in that with embodiment 2, in embodiment 3, pours in lattice The thickness of the concrete eight in gate hole hole 4 is equal to the height of middle carrier bar 3.Its manufacture method is: FRP grid 1 surrounding support shuttering, the height of template adds grid surface layer 7 equal to the height of FRP grid 1 The thickness of upper concrete 9.Then casting concrete 2, concrete 2 fills grid hole 4, treats grid face Concrete 9 on layer 7 pours complete, and the surface of floating concrete 2 treats that concrete 2 reaches some strength Rear form removal.
Embodiment 4:
Seeing Fig. 5, embodiment 4 differs primarily in that with embodiment 2, in embodiment 4, and FRP grid Without casting concrete on the grid surface layer 7 of 1.Its manufacture method is: be inverted by FRP grid 1, FRP grid 1 surrounding support shuttering, casting concrete in grid hole 4, make in grid hole 4 is mixed Solidifying soil 8 meets predetermined thickness, form removal after concrete reaches some strength.
Embodiment 5:
Seeing Fig. 6, embodiment 5 differs primarily in that with embodiment 4, pours in grid hole 4 The thickness of concrete eight is equal to the height of middle carrier bar 3.Its manufacture method was: FRP grid 1 week Enclose support shuttering, directly toward casting concrete in the grid hole 4 of FRP grid 1, make grid hole 4 The most all fill concrete eight, form removal after concrete reaches some strength.
Embodiment 6:
Seeing Fig. 7, embodiment 6 differs primarily in that there are lattice in FRP grid 1 with embodiment 3 Not casting concrete 8, gate hole hole 4, in hollow shape, when casting concrete 9 on grid surface layer 7, in phase Reserving hole 10 above the hollow grid hole 4 answered, makes reserving hole 10 and grate opening hole 4 up/down perforation, It is easy to infiltration.Its manufacture method is mainly with the difference of embodiment 3: prefabricated and grate opening hole 4 phase The prismatic table shape stopper of coupling, stopper plug in the grid hole 4 needing reserving hole 10, and can exceed The height that FRP grid 1 is certain, the height beyond grid is not less than the thickness of concrete 9 on grid surface layer 7, Support the template of concrete 9 on grid surface layer 7, then poured on grid hole 4 and grid surface layer 7 Concrete, after concrete reaches some strength, removes stopper, template of dismantling.
Embodiment 7, embodiment 8, embodiment 9:
Seeing Fig. 8, Fig. 9, Figure 10, embodiment 7,8,9 differs primarily in that with above-described embodiment, Having several grid hole 4 not casting concrete 8 in FRP grid 1, in hollow shape, its manufacture method is joined According to embodiment 6 and the manufacture method of other embodiments.
In above example, FRP grid 1 can use FRP molding grating and FRP pultrusion grid, wherein The orthogonal two-way stress performance of FRP molding grating is identical, owing to plate structure mechanical behavior is that pulling force is born in bottom, Pressure is born on top, and maximum pull is born in the bottom of plate, so the carrier bar bottom 6 of FRP grid 1 The thickest, the most thinning along the thickness of the most upwards carrier bar;Additionally, the particularity of FRP molding grating technique It is that whole cell structure fiber is uninterrupted, and the carrier bar of two orthogonal directions is an entirety.This makes FRP The stress performance of grid 1 is greatly improved.As plate structure, pressure is born on the top of plate, and FRP Stress performance advantage be mainly reflected in tension ability aspect, therefore on FRP grid surface layer 7 and grid Cast concrete in hole 4, on the one hand can improve the compression capability of plate, improves bearing capacity;The opposing party The rigidity of grid can be improved in face, it is to avoid grid goes out current situation and crushes bad.In order to add reinforced concrete and FRP lattice The interfacial adhesion of grid, can do blasting treatment on the FRP grid contact surface with concrete.Due to coagulation The Compressive Performance of soil is good, and the concrete 9 on grid surface layer 7 undertakes greatly with the concrete eight in grate opening hole 4 Partial pressure, and it is possible to prevent the local deformation of FRP grid 1 even to destroy, it is effectively improved FRP Grid and the bearing capacity of concrete combined board.Therefore, the FRP grid of the present invention and concrete combined board Can apply to road deck, floorings and manhole cover plate etc..
The compoboard of the present invention can be prefabricated in the factory, and therefore, it can well ensure construction quality, It is greatly shortened the construction period;Additionally, without configuration reinforcement, simplify manufacturing process, and intensity can obtain relatively Big raising.
The above, only as presently preferred embodiments of the present invention, not do any restriction to the present invention, all It is to any simple modification made for any of the above embodiments, change and equivalent structure according to the technology of the present invention essence Change, belongs to the protection domain of technical solution of the present invention.

Claims (7)

1. a FRP grid concrete compoboard, it is characterised in that: it includes FRP grid, and waters Build the concrete in grid hole or pour the concrete in grid hole and on grid surface layer;Institute State FRP grid and include the middle carrier bar in two directions in length and breadth, or include the middle carrying in two directions in length and breadth The edge carrier bar of bar and surrounding, is formed by middle carrier bar or by middle carrier bar and edge carrier bar Described grid hole;The section configuration of described middle carrier bar and edge carrier bar is that wedge shape, i.e. top are narrower, Bottom is wider.
FRP grid concrete compoboard the most according to claim 1, it is characterised in that pour described in: Concrete thickness in grid hole is less than or equal to the height of middle carrier bar.
FRP grid concrete compoboard the most according to claim 1 or claim 2, it is characterised in that: described A grid hole at least not casting concrete, in hollow shape, when having poured concrete on grid surface layer, Reserving hole above corresponding hollow grid hole so that it is with grate opening hole up/down perforation.
FRP grid concrete compoboard the most according to claim 3, it is characterised in that: described FRP Grid uses FRP molding grating or FRP pultrusion grid.
5. a manufacture method for FRP grid concrete compoboard as claimed in claim 1, its feature exists In: when the concrete thickness poured in grid hole is less than on height and the grid surface layer of middle carrier bar When needing casting concrete, FRP grid is inverted, in grid hole, pours into a mould the concrete of predetermined thickness; FRP grid is again overturn, in FRP grid surrounding after the concrete in grid hole reaches anticipated hardness Formwork supporting plate, pours the concrete of predetermined thickness on grid surface layer, removes after concrete reaches some strength Template.
6. a manufacture method for FRP grid concrete compoboard as claimed in claim 1, its feature exists In: when the concrete thickness poured in grid hole is less than on height and the grid surface layer of middle carrier bar When needing casting concrete, FRP grid is inverted, adds cushion block below FRP grid after inversion and raise, It raises height equal to the thickness needing pouring concrete on grid surface layer;And at grid surrounding formwork supporting plate, water simultaneously Concrete on note grid hole inner concrete and grid surface layer, grid hole inner concrete is poured into predetermined height Degree, form removal after concrete reaches some strength.
7. a manufacture method for FRP grid concrete compoboard as claimed in claim 1, its feature exists In: when the concrete thickness poured in grid hole is less than on height and the grid surface layer of middle carrier bar When needing casting concrete, first having supported the template of concrete on grid surface layer, the height of template exceedes grid Need the height of pouring concrete on surface layer, poured into a mould concrete on the grid surface layer of predetermined thickness, by FRP lattice Grid are inverted and are placed on above grid facing concrete, then, treat toward cast concrete in grid hole to predetermined altitude Concrete reaches form removal after some strength.
CN201610402143.4A 2016-06-08 2016-06-08 A kind of manufacturing method of FRP grid concrete compoboard Active CN105881730B (en)

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CN107268879A (en) * 2017-06-29 2017-10-20 江苏建筑职业技术学院 A kind of preparation technology of ultra-thin prefabricated thermal insulation exterior wall plate for building industrialization
CN108951992A (en) * 2018-08-15 2018-12-07 上海交通大学规划建筑设计有限公司 FRP shell-concrete panel structure and its manufacturing method

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CN107268879A (en) * 2017-06-29 2017-10-20 江苏建筑职业技术学院 A kind of preparation technology of ultra-thin prefabricated thermal insulation exterior wall plate for building industrialization
CN107268879B (en) * 2017-06-29 2020-07-14 江苏建筑职业技术学院 Preparation process of ultrathin prefabricated heat-insulation external wall panel for building industrialization
CN108951992A (en) * 2018-08-15 2018-12-07 上海交通大学规划建筑设计有限公司 FRP shell-concrete panel structure and its manufacturing method

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