CN110258290A - FRP pipe seawater coral aggregate concrete arch bridge structure and its method of construction - Google Patents
FRP pipe seawater coral aggregate concrete arch bridge structure and its method of construction Download PDFInfo
- Publication number
- CN110258290A CN110258290A CN201910457105.2A CN201910457105A CN110258290A CN 110258290 A CN110258290 A CN 110258290A CN 201910457105 A CN201910457105 A CN 201910457105A CN 110258290 A CN110258290 A CN 110258290A
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- China
- Prior art keywords
- formwork
- donor
- column
- aggregate concrete
- coral aggregate
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D4/00—Arch-type bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of FRP pipe seawater coral aggregate concrete arch bridge structures, including the donor formwork and column formwork using FRP pipe, seawater coral aggregate concrete has been poured in donor formwork and column formwork, it is respectively formed donor and column, the arch springing of the donor formwork is separately fixed in concrete foundation, is equipped with road surface at the top of column.Arch bridge structure of the invention can gather materials on the spot in ocean engineering construction and prepare concrete using seawater, coral reef aggregate, greatly reduce transport of materials cost, with good economic efficiency；Novel prefabricated FRP pipe is utilized and possesses lightweight, high-strength characteristic, not only as concreting when mold, but also as the main bearing member at bridge, substantially increase construction efficiency, economic loss caused by effectively preventing because of steel corrosion.
Description
Technical field
The present invention relates to offshore engineering structure technical field, specifically a kind of FRP pipe seawater coral aggregate concrete arch bridge
Structure and its method of construction.
Background technique
Marine environment is a kind of typical corrosive environment, and in this environment, seawater is a kind of strong corrosive medium, together
Shi Bo, wave, tide, stream generate low frequency toward combined stress and impact to metal component again, and marine microorganism, aufwuch and they
Metabolite etc. direct or indirect acceleration is all generated to corrosion process.Since far from continent, most of islands and reefs lack
The fresh water and sand, stone aggregate that concrete production needs, and cost from inland to islands and reefs that transported from is excessively high and inefficiency.Common
Structure of reinforced concrete needs assembling reinforcement, formwork, pours, the cumbersome step such as demoulding, and CFST Arch Bridge is then
It needs steel large area to be exposed under the strong corrosive environment of ocean, so, existing concrete filled steel tube bridge and reinforced concrete
Native bridge cannot meet islands and reefs construction to economic, durable and efficient demand very well.Fibre reinforced composites (Fiber
Reinforced Polymer, abbreviation FRP) an ideal approach can be provided for the solution of the above problem.
Therefore, to those skilled in the art, researching and developing one kind can use FRP constraint seawater coral reef concrete,
Meet the needs of bridge quick assembling construction, while there is the new structure of high-bearing capacity and high-durability energy, becomes this field
Technical problem urgently to be resolved.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention provides a kind of FRP pipe seawater coral aggregate
Concrete arch-type bridge structure and method of construction.
Technical solution: in order to solve the above technical problems, a kind of FRP pipe seawater coral aggregate concrete arch bridge knot of the invention
Multiple column formworks are arranged including the donor formwork and column formwork using FRP pipe in structure on each donor formwork, form shell；
Seawater coral aggregate concrete has been poured in donor formwork and column formwork, is respectively formed donor and column；It is multiple to set side by side
The arch springing of the donor formwork for the shell set is separately fixed in concrete foundation, and road surface is equipped at the top of column.
Wherein, the column formwork is each perpendicular to horizontal plane, and is uniformly and symmetrically distributed on donor formwork, in column formwork
Reinforcing member is set with the junction of donor formwork.
Wherein, the reinforcing member is the FRP band for being wrapped in column formwork and donor formwork junction.
Wherein, the donor formwork is prefabricated FRP curve bend, and the column formwork is prefabricated FRP straight tube.
Wherein, the concrete foundation forms for seawater coral aggregate concrete is prefabricated.
The present invention also provides a kind of methods of construction of FRP pipe seawater coral aggregate concrete arch bridge structure, including following step
It is rapid:
S1: rubber pneumatic bag is prepared according to the design size of the donor of arch bridge and column, after air bag is inflated, is set according to donor
The corresponding rubber pneumatic bag of donor is fixed on steelframe by meter shape；
S2: silvalin beam is spirally wound on to the surface of each rubber pneumatic bag of step S1 preparation, silvalin beam and rubber gas
It is separated between capsule with Teflon film, make silvalin beam impregnation with epoxy resin and is wrapped outside latex bonded fibre yarn beam with vacuum diaphragm
It wraps up in, will be vacuumized between latex bonded fibre yarn beam and vacuum diaphragm with vacuum machine makes its surfacing, sufficiently glutinous to latex bonded fibre yarn beam
After knot hardening, the gas in rubber pneumatic bag is discharged, extract rubber pneumatic bag out and takes Teflon diaphragm and vacuum diaphragm off, donor mould is made
Shell and column formwork；
S3: being punched at the design position of column formwork using punch so that column formwork connect with donor formwork with
It is connected to, is bonded donor formwork and column formwork with strength resin glue, in the connection of donor formwork and column formwork in inside afterwards
Place carries out consolidation process by the way of FRP band right-angled intersection winding, forms shell；
S4: by the way of being arranged side by side, the shell that donor formwork connects composition with column formwork is set up.By shell both ends
Arch springing be embedded among seawater coral aggregate concrete basis；
S5: seawater coral aggregate concrete is poured, arranges Bidirectional supporting under the shell that step S4 has been set up first, then
Seawater coral aggregate concrete is poured from each column shell upper end to remove two-way up to filling whole shells after maintenance is good
Support, seawater coral aggregate concrete form donor in donor formwork, form column in column formwork；
S6: bridge floor is laid with above all columns.
The utility model has the advantages that the invention has the following advantages:
1, arch bridge structure of the invention can gather materials on the spot in ocean engineering construction using seawater, coral reef aggregate system
Standby concrete, greatly reduces transport of materials cost, with good economic efficiency；
2, present invention utilizes novel prefabricated FRP pipes to possess lightweight, high-strength characteristic, both as concreting when mould
Tool, and as the main bearing member at bridge, substantially increase construction efficiency；
3, arch bridge structure of the invention is economical caused by effectively preventing because of steel corrosion under FRP pipe corrosion resistance characteristic
Lose the super-durable, it can be achieved that structure；
4, present invention utilizes arch structure naturally be pressurized based on good characteristic, the mechanical property of material can be made full use of
Matter, and be conducive to the long-time service of the structure.
Detailed description of the invention
Fig. 1 is seawater coral aggregate concrete arch bridge schematic diagram；
Fig. 2 is the sectional view of donor；
Fig. 3 is the sectional view of column；
Fig. 4 is that column formwork and donor formwork junction reinforce schematic diagram；
Fig. 5 is FRP shell preparation method schematic diagram；
Fig. 6 is multitube top view side by side；
Fig. 7 is that seawater coral aggregate concrete pours schematic diagram.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings.
As shown in Figures 1 to 7, a kind of FRP pipe seawater coral aggregate concrete arch bridge structure of the invention, including use
Multiple column formworks 2 are arranged on each donor formwork 1 for FRP round tube donor formwork 1 and column formwork 2, form shell；Donor mould
Seawater coral aggregate concrete 5 is poured in shell 1 and column formwork 2, is respectively formed donor and column；Multiple shells arranged side by side
The arch springing of donor formwork 1 be separately fixed in concrete foundation 3, concrete foundation poured by seawater coral aggregate concrete and
At；Consolidation process is done in the junction of donor formwork 1 and column formwork 2, specially winds multilayer FRP band in junction.Such as
Fig. 5；Multiple shells arranged side by side are laid with road surface 4 after reaching enough width on arch.
The invention also discloses a kind of method of construction of FRP pipe seawater coral aggregate concrete arch bridge structure, including it is following
Step:
S1: rubber pneumatic bag is prepared according to the design size of the donor of arch bridge and column respectively, after rubber pneumatic bag is inflated, is pressed
Rubber pneumatic bag is fixed on steelframe 9 according to donor design shape；
S2: silvalin beam is spirally wound on to the surface of each rubber pneumatic bag of step S1 preparation, silvalin beam and rubber gas
It is separated between capsule with Teflon film, make silvalin beam impregnation with epoxy resin and is wrapped outside latex bonded fibre yarn beam with vacuum diaphragm
It wraps up in, will be vacuumized between the latex bonded fibre yarn beam and vacuum diaphragm with vacuum machine makes its surfacing, abundant to latex bonded fibre yarn beam
After cohering hardening, the gas in rubber pneumatic bag is discharged, extract rubber pneumatic bag out and takes Teflon diaphragm and vacuum diaphragm off, donor is made
Formwork and column formwork；
S3: being punched at the design position of column formwork using punch so that column formwork connect with donor formwork with
It is connected to, is bonded donor formwork and column formwork with strength resin glue, in the connection of donor formwork and column formwork in inside afterwards
Place carries out consolidation process by the way of FRP band right-angled intersection winding, forms shell；
S4: the shell of donor formwork 1 and the connection composition of column formwork 2 is set up, by the way of arranged side by side, by each pipe
The arch springing at shell both ends is embedded among seawater coral aggregate concrete basis 3；
S5: pouring seawater coral aggregate concrete, and Bidirectional supporting 10 is arranged first under the shell that step S4 has been set up, is connect
Pour seawater coral aggregate concrete 5 up to filling whole shells from each 2 upper end of column shell, after maintenance is good, remove
Bidirectional supporting, seawater coral aggregate concrete form donor in donor formwork 1, form column in column formwork 2；
S6: bridge floor 4 is laid with above all columns.
In step S2, because mechanical or manual winding, can make inevitably have bubble and sky between the silvalin beam twined
Gap, so, after twining, wrap up vacuum diaphragm outside silvalin beam, by way of vacuumizing by silvalin wrapping at
The densification of FRP pipe is real, makes its surfacing.
In step S3, at the design position of column formwork punching be in order to allow column formwork to be connected to donor formwork, this
It need to only be poured into from column formwork upper end when sample casting concrete, concrete is eventually full of all donor formworks and column mould
Shell, without separately pouring, the globality of arch bridge also can be more preferable.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (6)
1. a kind of FRP pipe seawater coral aggregate concrete arch bridge structure, it is characterised in that: including the donor formwork using FRP pipe
With column formwork, multiple column formworks are set on each donor formwork, form shell；It is poured in donor formwork and column formwork
There is seawater coral aggregate concrete, is respectively formed donor and column；The arch springing of the donor formwork of multiple shells arranged side by side point
It is not fixed in concrete foundation, road surface is equipped at the top of column.
2. FRP pipe seawater coral aggregate concrete arch bridge structure according to claim 1, it is characterised in that: the column
Formwork is each perpendicular to horizontal plane, and is uniformly and symmetrically distributed on donor formwork, sets in the junction of column formwork and donor formwork
Set reinforcing member.
3. FRP pipe seawater coral aggregate concrete arch bridge structure according to claim 2, it is characterised in that: the reinforcing
Part is the FRP band for being wrapped in column formwork and donor formwork junction.
4. FRP pipe seawater coral aggregate concrete arch bridge structure according to claim 1, it is characterised in that: the donor
Formwork is prefabricated FRP curve bend, and the column formwork is prefabricated FRP straight tube.
5. FRP pipe seawater coral aggregate concrete arch bridge structure according to claim 1, it is characterised in that: the coagulation
Earth foundation, which is that seawater coral aggregate concrete is prefabricated, to be formed.
6. a kind of method of construction of FRP pipe seawater coral aggregate concrete arch bridge structure, which comprises the following steps:
S1: preparing corresponding rubber pneumatic bag according to the design size of the donor of arch bridge and column, after the inflation of each rubber pneumatic bag, presses
It is according to donor design shape that the corresponding rubber pneumatic bag of donor is fixed on steelframe；
Silvalin beam: being spirally wound on the surface of each rubber pneumatic bag of step S1 preparation by S2, silvalin beam and rubber pneumatic bag it
Between separated with Teflon film, make silvalin beam impregnation with epoxy resin and wrapped up outside latex bonded fibre yarn beam with vacuum diaphragm,
To be vacuumized between latex bonded fibre yarn beam and vacuum diaphragm with vacuum machine makes its surfacing, sufficiently coheres firmly to latex bonded fibre yarn beam
After change, discharge rubber pneumatic bag in gas, extraction rubber pneumatic bag simultaneously take Teflon diaphragm and vacuum diaphragm off, be made donor formwork and
Column formwork；
S3: being punched at the design position of column formwork using punch so that column formwork connect with donor formwork after
Donor formwork and column formwork are bonded with strength resin glue, in the junction of donor formwork and column formwork, are adopted by inside connection
Consolidation process is carried out with the mode that FRP band right-angled intersection is wound, forms shell；
S4: the shell that donor formwork connects composition with column formwork is set up, by the way of arranged side by side, by each shell both ends
Arch springing be embedded among seawater coral aggregate concrete basis；
S5: seawater coral aggregate concrete is poured, arranges Bidirectional supporting under the shell that step S4 has been set up first, then from every
One column shell upper end pours seawater coral aggregate concrete until filling whole shells, after maintenance is good, removes Bidirectional supporting,
Seawater coral aggregate concrete forms donor in donor formwork, forms column in column formwork；
S6: bridge floor is laid with above all columns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910457105.2A CN110258290A (en) | 2019-05-29 | 2019-05-29 | FRP pipe seawater coral aggregate concrete arch bridge structure and its method of construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910457105.2A CN110258290A (en) | 2019-05-29 | 2019-05-29 | FRP pipe seawater coral aggregate concrete arch bridge structure and its method of construction |
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| CN110258290A true CN110258290A (en) | 2019-09-20 |
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| CN201910457105.2A Pending CN110258290A (en) | 2019-05-29 | 2019-05-29 | FRP pipe seawater coral aggregate concrete arch bridge structure and its method of construction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111424528A (en) * | 2020-04-20 | 2020-07-17 | 东南大学 | FRP (fiber reinforced plastic) pipe concrete arch structure with FRP longitudinal ribs and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111424528A (en) * | 2020-04-20 | 2020-07-17 | 东南大学 | FRP (fiber reinforced plastic) pipe concrete arch structure with FRP longitudinal ribs and preparation method thereof |
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Application publication date: 20190920 |
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