CN104032893B - A integrated into one piece's FRP broken line shaped plate structure for composite beam - Google Patents
A integrated into one piece's FRP broken line shaped plate structure for composite beam Download PDFInfo
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- CN104032893B CN104032893B CN201410293368.1A CN201410293368A CN104032893B CN 104032893 B CN104032893 B CN 104032893B CN 201410293368 A CN201410293368 A CN 201410293368A CN 104032893 B CN104032893 B CN 104032893B
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- fold
- frp
- line
- fiber
- shaped plate
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- 239000002131 composite material Substances 0.000 title claims abstract description 20
- 239000000835 fiber Substances 0.000 claims description 55
- 150000001875 compounds Chemical class 0.000 claims description 17
- 238000010276 construction Methods 0.000 claims description 15
- 229920005989 resin Polymers 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 229920006305 unsaturated polyester Polymers 0.000 claims description 6
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 5
- 239000004917 carbon fiber Substances 0.000 claims description 5
- 239000003365 glass fiber Substances 0.000 claims description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 5
- 238000007493 shaping process Methods 0.000 claims description 5
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 3
- 239000004593 Epoxy Substances 0.000 claims description 3
- 240000007182 Ochroma pyramidale Species 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229920006231 aramid fiber Polymers 0.000 claims description 3
- 239000010425 asbestos Substances 0.000 claims description 3
- 229910052796 boron Inorganic materials 0.000 claims description 3
- 239000000084 colloidal system Substances 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- -1 phenolic aldehyde Chemical class 0.000 claims description 3
- 229910052895 riebeckite Inorganic materials 0.000 claims description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 3
- 229920001187 thermosetting polymer Polymers 0.000 claims description 3
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 3
- 229920002554 vinyl polymer Polymers 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 7
- 239000010959 steel Substances 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 4
- 238000003466 welding Methods 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 238000005336 cracking Methods 0.000 abstract description 2
- 229920002430 Fibre-reinforced plastic Polymers 0.000 abstract 5
- 239000011151 fibre-reinforced plastic Substances 0.000 abstract 5
- 230000007547 defect Effects 0.000 abstract 1
- 230000007774 longterm Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 8
- 239000004744 fabric Substances 0.000 description 4
- 239000004814 polyurethane Substances 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses an integrally-formed FRP (fiber reinforced plastic) fold-line-shaped plate structure for a composite beam, which is formed by connecting a plurality of integrally-formed FRP fold-line-shaped plate bodies, wherein each FRP fold-line-shaped plate body comprises a top plate, a bottom plate, an outer web and an inner web, the top plate is a template for pouring concrete, a concrete slab is poured on the top plate, and ribs for increasing the bonding force between the FRP fold-line-shaped plate bodies and the concrete slab are arranged on the top plate. The invention solves the defects of complex welding process, poor corrosion resistance and easy cracking of concrete in long-term use of steel composite beams and steel and concrete composite beams in bridge engineering and building engineering.
Description
Technical field
The present invention relates to the combined beam structure in a kind of bridge engineering and construction work, be specifically related to a kind of integrated FRP fold-line-shaped plated construction for compound beam.
Background technology
In bridge engineering and construction work, compound beam mostly is steel compound beam and steel, concrete combination beam.Steel are large due to flexural strength, and connect the feature such as reliable and use more at large scale structure, but its welding sequence is complicated, poor corrosion resistance in Long-Time Service, because needs regularly carry out preservative treatment, and makes cost increase.Concrete is easy to crack, reduces after cracking to connecting reinforcement protective effect, thus reduces the application life of structure.Composite material fold-line-shaped plate can be used as the permanent template of concreting, forms composite material fold-line-shaped plate-Combined concrete girder construction.But the modulus of elasticity of existing civil engineering composite panel is lower, be out of shape larger.Although and more superior for the composite material performance in the high-precision pointed collar territories such as Aero-Space, expensive, be difficult to apply in field of civil engineering.Meanwhile, in the composite material beam slab that pultrude process is shaping, structure fiber is mainly distributed in longitudinal direction, and often transverse strength and rigidity can not meet engineering demand.
Summary of the invention
The object of this invention is to provide a kind of multidirectional laying for combined beam structure, local strengthening type composite material fold-line-shaped board connecting structure, solve in bridge engineering and construction work, steel compound beam and steel, concrete combination beam, its welding sequence is complicated, poor corrosion resistance in Long-Time Service, the shortcoming that concrete is easy to crack.
The technical solution used in the present invention is: a kind of integrated FRP fold-line-shaped plated construction for compound beam, be formed by connecting by multiple integrated FRP (fibre reinforced composites) fold-line-shaped plate body, each FRP fold-line-shaped plate body comprises top board, base plate, outer web and endosternum, described top board is the template of concreting, built concrete slab above top board, top board is provided with the rib increasing FRP fold-line-shaped plate body and concrete slab adhesion stress;
Outer web and the endosternum of described FRP fold-line-shaped plate body are subject to shear stress, and its fiber laying is: outer layer fiber is for along web height direction, and middle fiber be longitudinal direction and along beam length direction; Base plate and the top board of FRP fold-line-shaped plate body are subject to tension and compression stress, and its fiber laying is: outer layer fiber is for laterally, and median fiber be longitudinal direction and along beam length direction; Cloth is symmetrical, and outer layer fiber cloth is no less than 2 layers.
As preferably, the material of described FRP fold-line-shaped plate body adopts one or more in carbon fiber, glass fiber, boron fibre, aramid fiber, silicon carbide fibre, alumina fibre, asbestos fiber with resin-bonded shaping, and resin adopts these thermosetting resins of unsaturated polyester (UP), vinyl, epoxy and phenolic aldehyde.
As preferably, in the fiber laying of described FRP fold-line-shaped plate body, the fiber that skin modulus of elasticity is larger, as carbon fiber etc., the fiber that median fiber modulus of elasticity is lower, as glass fiber etc.
As preferably, be the anti-pressure ability increasing composite combined beam top, described endosternum is arch sheet, and the fiber laying of arch sheet is symmetrical, and outer layer fiber be along arch direction, and median fiber is longitudinal direction and along beam length direction.
As preferably, described top board is the spill top board that middle part moves down, and top board moves down and increases concrete slab thickness, can strengthen the compressive strength of this composite combined beam equally.
As preferably, be provided with core in described FRP fold-line-shaped plate body, core is cork wood or rigid foam (polyvinylchloride, PEI PEI, polyurethane PU, polythene PE T, Polymethacrylimide PMI).
As preferably, adjacent FRP fold-line-shaped plate body is interconnected by composite material junction plate and bolt, forms an entirety, is provided with colloid between described composite material junction plate and FRP fold-line-shaped plate body.
Beneficial effect: structure of the present invention is shaping by pultrude process, welding technique, structure is simple, and good integrity, the compressive strength of compound beam are high.
Accompanying drawing explanation
Fig. 1 is combined beam structure schematic diagram of the present invention;
Fig. 2 is arch endosternum compound beam schematic diagram;
Fig. 3 is fiber laying schematic diagram in 1-a place in Fig. 1,2;
Fig. 4 is fiber laying schematic diagram in 1-b place in Fig. 1,2;
Fig. 5 is fiber laying schematic diagram in 1-c place in Fig. 2;
Fig. 6 is for adding thick concrete slab compound beam schematic diagram;
Fig. 7 is sandwich FRP fold-line-shaped plate schematic diagram;
Fig. 8 is FRP fold-line-shaped plate connection diagram;
Fig. 9 is the top view of Fig. 8.
Detailed description of the invention
Below in conjunction with detailed description of the invention and accompanying drawing, the present invention will be further described:
Embodiment 1
As Fig. 1,3,4, shown in 8 and 9, a kind of integrated FRP fold-line-shaped plated construction for compound beam, be formed by connecting by multiple integrated FRP fold-line-shaped plate body 1, each FRP fold-line-shaped plate body 1 comprises top board, base plate, outer web and endosternum, described top board is the template of concreting, built concrete slab 2 above top board, top board is provided with the rib 3 increasing FRP fold-line-shaped plate body and concrete slab adhesion stress; Outer web and the endosternum of described FRP fold-line-shaped plate body 1 are subject to shear stress, and its fiber laying is: outer layer fiber is for along web height direction, and middle fiber be longitudinal direction and along beam length direction; Base plate and the top board of FRP fold-line-shaped plate body are subject to tension and compression stress, and its fiber laying is: outer layer fiber is for laterally, and median fiber be longitudinal direction and along beam length direction; Cloth is symmetrical, and outer layer fiber cloth is no less than 2 layers.The material of described FRP fold-line-shaped plate body adopts one or more in carbon fiber, glass fiber, boron fibre, aramid fiber, silicon carbide fibre, alumina fibre, asbestos fiber with resin-bonded shaping, and resin adopts these thermosetting resins of unsaturated polyester (UP), vinyl, epoxy and phenolic aldehyde.In the fiber laying of described FRP fold-line-shaped plate body 1, the fiber that skin modulus of elasticity is larger, the fiber that median fiber modulus of elasticity is lower.Adjacent FRP fold-line-shaped plate body 1 is interconnected by composite material junction plate 6 and bolt 5, forms an entirety, is provided with colloid 7 between described composite material junction plate 6 and FRP fold-line-shaped plate body 1.
Embodiment 2
As shown in figures 2 and 5, the difference of the present embodiment and embodiment 1 is: described endosternum is arch sheet, and the fiber laying of arch sheet is symmetrical, and outer layer fiber is along arch direction, and median fiber is longitudinally and along beam length direction.
Embodiment 3
As shown in Figure 6, the difference of the present embodiment and embodiment 1 is: described top board is the spill top board that middle part moves down, and top board moves down and increases concrete slab thickness, can strengthen the compressive strength of this composite combined beam equally.
Embodiment 3
As shown in Figure 7, the difference of the present embodiment and embodiment 1 is: be provided with core 4 in described FRP fold-line-shaped plate body 1, and core 4 is cork wood or rigid foam (polyvinylchloride, PEI PEI, polyurethane PU, polythene PE T, Polymethacrylimide PMI).
The above is only the preferred embodiment of the present invention; be noted 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.
Claims (7)
1. the integrated FRP fold-line-shaped plated construction for compound beam, it is characterized in that: be formed by connecting by multiple integrated FRP fold-line-shaped plate body, each FRP fold-line-shaped plate body comprises top board, base plate, outer web and endosternum, described top board is the template of concreting, built concrete slab above top board, top board is provided with the rib increasing FRP fold-line-shaped plate body and concrete slab adhesion stress;
Outer web and the endosternum of described FRP fold-line-shaped plate body are subject to shear stress, and its fiber laying is: outer layer fiber is that median fiber is along beam length direction along web height direction; Base plate and the top board of FRP fold-line-shaped plate body are subject to tension and compression stress, and its fiber laying is: outer layer fiber is for horizontal, and median fiber is along beam length direction; Described fiber laying is along the distribution of outer web, endosternum, base plate or roof symmetric, and outer layer fiber is no less than 2 layers.
2. a kind of integrated FRP fold-line-shaped plated construction for compound beam according to claim 1, it is characterized in that: the material of described FRP fold-line-shaped plate body adopts one or more in carbon fiber, glass fiber, boron fibre, aramid fiber, silicon carbide fibre, alumina fibre, asbestos fiber with resin-bonded shaping, and resin adopts these thermosetting resins of unsaturated polyester (UP), vinyl, epoxy and phenolic aldehyde.
3. a kind of integrated FRP fold-line-shaped plated construction for compound beam according to claim 2, it is characterized in that: in the fiber laying of described FRP fold-line-shaped plate body, the carbon fiber that skin modulus of elasticity is larger, the glass fiber that median fiber modulus of elasticity is lower.
4. a kind of integrated FRP fold-line-shaped plated construction for compound beam according to claim 1, it is characterized in that: described endosternum is arch sheet, the fiber laying of arch sheet is for being axis of symmetry along arch, symmetrical, outer layer fiber is along arch direction, and median fiber is along beam length direction.
5. a kind of integrated FRP fold-line-shaped plated construction for compound beam according to claim 1, is characterized in that: described top board is the spill top board that middle part moves down.
6. a kind of integrated FRP fold-line-shaped plated construction for compound beam according to claim 1, is characterized in that: be provided with core in described FRP fold-line-shaped plate body, core is cork wood or rigid foam.
7. a kind of integrated FRP fold-line-shaped plated construction for compound beam according to claim 1, it is characterized in that: adjacent FRP fold-line-shaped plate body is interconnected by composite material junction plate and bolt, is provided with colloid between composite material junction plate and FRP fold-line-shaped plate body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410293368.1A CN104032893B (en) | 2014-06-26 | 2014-06-26 | A integrated into one piece's FRP broken line shaped plate structure for composite beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410293368.1A CN104032893B (en) | 2014-06-26 | 2014-06-26 | A integrated into one piece's FRP broken line shaped plate structure for composite beam |
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| Publication Number | Publication Date |
|---|---|
| CN104032893A CN104032893A (en) | 2014-09-10 |
| CN104032893B true CN104032893B (en) | 2016-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410293368.1A Expired - Fee Related CN104032893B (en) | 2014-06-26 | 2014-06-26 | A integrated into one piece's FRP broken line shaped plate structure for composite beam |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836639B (en) * | 2017-04-11 | 2022-09-23 | 南京工业大学 | FRP box-shaped section-concrete combined beam provided with bidirectional shear keys |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1507938B1 (en) * | 2002-05-29 | 2010-03-24 | Peikko Group Oy | Method for manufacturing steel beam and steel beam |
| CN202116972U (en) * | 2011-05-03 | 2012-01-18 | 东南大学 | Shear connector of FRP concrete composite beam |
| CN102425266A (en) * | 2011-09-08 | 2012-04-25 | 东南大学 | Fiber reinforced composites-concrete composite beam with controllable ductility |
| CN103422617A (en) * | 2013-07-18 | 2013-12-04 | 杭州博数土木工程技术有限公司 | Continuous I beam adopting corrugated steel web steel and concrete composite structure |
| CN203320390U (en) * | 2013-05-03 | 2013-12-04 | 同济大学 | Box-type FRP-concrete composite beam |
| CN203420221U (en) * | 2013-08-08 | 2014-02-05 | 南京工业大学 | Orthotropic steel plate-fiber grating reinforced concrete combined bridge deck structure |
| CN203924486U (en) * | 2014-06-26 | 2014-11-05 | 南京工业大学 | A integrated into one piece's FRP broken line shaped plate structure for composite beam |
-
2014
- 2014-06-26 CN CN201410293368.1A patent/CN104032893B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1507938B1 (en) * | 2002-05-29 | 2010-03-24 | Peikko Group Oy | Method for manufacturing steel beam and steel beam |
| CN202116972U (en) * | 2011-05-03 | 2012-01-18 | 东南大学 | Shear connector of FRP concrete composite beam |
| CN102425266A (en) * | 2011-09-08 | 2012-04-25 | 东南大学 | Fiber reinforced composites-concrete composite beam with controllable ductility |
| CN203320390U (en) * | 2013-05-03 | 2013-12-04 | 同济大学 | Box-type FRP-concrete composite beam |
| CN103422617A (en) * | 2013-07-18 | 2013-12-04 | 杭州博数土木工程技术有限公司 | Continuous I beam adopting corrugated steel web steel and concrete composite structure |
| CN203420221U (en) * | 2013-08-08 | 2014-02-05 | 南京工业大学 | Orthotropic steel plate-fiber grating reinforced concrete combined bridge deck structure |
| CN203924486U (en) * | 2014-06-26 | 2014-11-05 | 南京工业大学 | A integrated into one piece's FRP broken line shaped plate structure for composite beam |
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| CN104032893A (en) | 2014-09-10 |
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Granted publication date: 20160323 Termination date: 20200626 |