CN106835935A - A kind of outsourcing FRP steel pipe arch structures - Google Patents
A kind of outsourcing FRP steel pipe arch structures Download PDFInfo
- Publication number
- CN106835935A CN106835935A CN201710198087.1A CN201710198087A CN106835935A CN 106835935 A CN106835935 A CN 106835935A CN 201710198087 A CN201710198087 A CN 201710198087A CN 106835935 A CN106835935 A CN 106835935A
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- CN
- China
- Prior art keywords
- steel
- steel pipe
- arch
- frp
- flanged beam
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- E01D6/00—Truss-type bridges
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/32—Arched structures; Vaulted structures; Folded structures
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/38—Arched girders or portal frames
- E04C3/46—Arched girders or portal frames of materials not covered by groups E04C3/40 - E04C3/44; of a combination of two or more materials
-
- 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
- E01D2101/30—Metal
-
- 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
- E01D2101/40—Plastics
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/32—Arched structures; Vaulted structures; Folded structures
- E04B2001/3229—Arched structures; Vaulted structures; Folded structures constructed using a boom
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
A kind of outsourcing FRP steel pipe arch structures, the present invention relates to a kind of arch structure, to solve the problems, such as that conventional steel arch structure is susceptible to surrender, makes that difficult, steel using amount is big, welding job is heavy, perishable and service life.The present invention includes steel flanged beam arch rib and two bases, and two bases are symmetricly set on the two ends of steel flanged beam arch rib, and the steel flanged beam arch rib includes steel pipe and FRP layer, the FRP layer outer layer for being coated on steel pipe, and FRP layers and steel pipe pass through resin-bonded into multiple tube.The present invention is suitable for the science of bridge building under corrosive environment, Metro Tunnel and large-span structure engineering etc..
Description
Technical field
The present invention relates to a kind of arch structure, and in particular to a kind of outsourcing FRP steel pipe arch structures.
Background technology
Steel pipe arch structure, especially Steel-pipe Arch Truss structure, because its have reasonable stress, from heavy and light, intensity is high, construction just
Prompt, handsome in appearance the advantages of, obtains extensively should in the large-span structure such as science of bridge building and airport, gymnasium, industrial premises
With.But in steel pipe arch structure, thin-wall steel tube is susceptible to local buckling, the decline of structural bearing capacity is caused.Therefore in order to
Improve structural bearing capacity, delay steel pipe that flexing occurs, arch rib is generally using being relatively large in diameter, the steel pipe that wall thickness is thicker, and in pipe
Multiple tracks ribbed stiffener is set, but at the same time can also produce the problems such as steel pipe manufacturing is difficult, steel using amount is big, welding job is heavy.
The problems such as conventional steel arch structure is also faced with perishable, poor fatigue properties simultaneously.Because steel pipe is exposed to air
In, chemistry, the electrochemical action of the moisture that is vulnerable in air and other pollutants and cause corrosion, influence steel pipe arch structure
Security and service life.It is general using anticorrosive coating, hot-dip in Practical Project in order to meet the requirement of tubular arch aseptic technic
Steel pipe is protected Deng measure, but it is incident be great number anti-corrosion and maintenance cost, therefore steel susceptibility-to-corrosion
So that this preferable arch component is seldom applied in the environment of high corrosion.
The content of the invention
The present invention is susceptible to surrender to solve conventional steel arch structure, big, welding job is numerous to make difficulty, steel using amount
The heavy, problem that perishable and service life is short, and propose a kind of outsourcing FRP steel pipe arch structures.
A kind of outsourcing FRP steel pipe arch structures of the invention, its composition includes steel flanged beam arch rib and two bases, two bases
The two ends of steel flanged beam arch rib are symmetricly set on, the steel flanged beam arch rib includes steel pipe and FRP layers, and FRP layers is coated on the outer of steel pipe
Layer, and FRP layer with steel pipe pass through it is resin-bonded into multiple tube.
The present invention has the advantages that compared with prior art：
First, have that tensile strength is high due to FRP material (fibre reinforced composites), corrosion resistance and good, from heavy and light, anti-
Fatigue behaviour is strong, easy construction the features such as, be pasted on FRP material outside steel pipe by the present invention so that outsourcing FRP tubular archs have attached
The effect of addition of constraints, so as to delay or avoid steel pipe to surrender, improves the stability bearing capacity of structure, increased steel pipe flexing
Plastic deformation ability afterwards.
2nd, FRP material combination steel pipe use can substitute a part of steel pipe, not only alleviate the overall weight of structure, subtract
The wall thickness of thin large diameter steel pipe, reduces the steel using amount and cost of arch rib, moreover it is possible to by the epistasis phase high of the non-linear and FRP material of steel
With reference to the stress performance of improvement tubular arch.
3rd, FRP layers of stable chemical nature, be difficult burn into good endurance, can solve the problem that the problem of ordinary steel pipeline overhead lifting corrosion.
FRP stress relaxations are small simultaneously, anti-fatigue performance is strong so that outsourcing FRP tubular archs have good endurance quality.
4th, steel pipe can save mould in the taping process of FRP fibers as Wound Dies, easy construction
Manufacturing cost and knockout course, reduce production cost, shorten the construction period.
Brief description of the drawings
Fig. 1 is the schematic diagram of outsourcing FRP steel pipe arch structures of the invention；
Fig. 2 is that the cross sectional shape of steel flanged beam arch rib 2 is circular configuration schematic diagram；
Fig. 3 is that the cross sectional shape of steel flanged beam arch rib 2 is square structure schematic diagram；
Fig. 4 is that the cross sectional shape of steel flanged beam arch rib 2 is rectangular configuration schematic diagram；
Fig. 5 is that arch rib of the invention is the structural representation of purlin formula arch；
Fig. 6 be steel flanged beam arch rib 2 quantity be three when, purlin formula arch cross sectional shape be triangular structure schematic diagram；
Fig. 7 be steel flanged beam arch rib 2 quantity be three when, purlin formula arch cross sectional shape be inverted triangular structure schematic diagram；
Fig. 8 be steel flanged beam arch rib 2 quantity be four when, purlin formula arch cross sectional shape be rectangular configuration schematic diagram；
Fig. 9 be steel flanged beam arch rib 2 quantity be four when, purlin formula arch cross sectional shape be inverted trapezoidal structure schematic diagram.
Specific embodiment
Specific embodiment one：Present embodiment is illustrated with reference to Fig. 1, present embodiment includes steel flanged beam arch rib 2 and two
Basis 1, two bases 1 are symmetricly set on the two ends of steel flanged beam arch rib 2, and steel flanged beam arch rib 2 two ends respectively with both sides basis 1
Affixed, steel flanged beam arch rib 2 is coated on the outer layer of steel pipe 4 including steel pipe 4 and FRP layers 3, FRP layers 3, and FRP layers 3 passes through with steel pipe 4
It is resin-bonded into multiple tube.Steel pipe 4 is welded into tubular arch by straight steel pipe simmering and bending or steel plate, and steel flanged beam arch rib 2 is to wind with steel pipe
Mould continuously along the ring of steel pipe 4 and is axially located at steel tube surface by FRP layers 3, is made one or more layers FRP pipes, each layer fiber it
Between be also adopted by it is resin-bonded.In order to ensure the bond effect between FRP layers 3 and steel pipe 4, strengthen sticking strength and durability,
Before pasting FRP fibers, steel pipe 4 should be surface-treated or blasting treatment, be removed iron rust, coating and the oil of outer surface of steel tube
Paint, and cleaned.FRP fibers should be in time pasted after the completion of surface treatment, adhesion strength can be otherwise reduced.Can lead to simultaneously
Cross using equipment such as electric blanket or heaters to improve the maintenance speed of binding agent.FRP is fibre reinforced plastics.Steel flanged beam arch rib
2 line form is that parabola shaped, circular arc or stretched wire are linear.
Steel flanged beam arch rib 2 is assembled by rib-lifting section, before rib-lifting section processing, should according to Theoretical Design arch axis coordinate and
Arch rise left in advance value carries out setting-out, determines rib-lifting section number and segmental length.Rib-lifting section is welded into by straight steel pipe simmering and bending or steel plate
Pipe, carries out assembly welding after physical dimension passed examination, and all welding qualities should meet code requirement.
The FRP fibers of outer layer can be divided into ring fiber and axial direction fibre according to the stickup direction of fibre bundle.When outsourcing FRP steel
When pipeline overhead lifting starts to bear external load and acts on, fiber is in hoop tension state, with the increase of load, close to ultimate bearing capacity
When, ring fiber regional area initially enters pressured state because of roach life bending deformation, but before roach life unstability, it is overall
Still based on hoop tension, the influence of the stress check calculation of ring fiber to bearing capacity is negligible.Therefore circumferentially paste
Fiber mainly passes through hoop tension to steel pipe generation hoop constraint, and then limits the development of steel pipe bending deformation, improves component
Stability bearing capacity and ductility.And axial direction fibre was completely in pressured state before test specimen reaches stability bearing capacity, due to loading
Starting stage deformation is smaller, and axial direction fibre forms the tubular structure for depending on steel tube surface, and this allows it to undertake partial pressure.
With the generation of arch structure unstability, part axial direction fibre is gradually converted to tension state, Jin Erqi due to the bending deformation of steel pipe
To the effect of limitation test piece deformation development, it is possible to increase the initial post-buckling behavior of arch.
Specific embodiment two：FRP layers 3 of present embodiment is one or more layers fibrous material, and fibrous material is glass
One kind in glass fibre reinforced plastics, carbon fibre reinforced plastic, Basalt fiber reinforced plastic and aromatic polyamide fiber reinforced plastics or
Several specific admixtures are formed.Other compositions and annexation are identical with specific embodiment one.
Fibrous material described in present embodiment is fiberglass reinforced plastics, carbon fibre reinforced plastic, basalt are fine
It is any ratio between each composition when several specific admixtures in dimension reinforced plastics and aromatic polyamide fiber reinforced plastics are formed.
Specific embodiment three：The resin of present embodiment be epoxy resin, unsaturated polyester resin, vinylite or
Phenolic resin.Other compositions and annexation are identical with specific embodiment one or two.
Specific embodiment four：Present embodiment, the steel flanged beam arch rib 2 of present embodiment are illustrated with reference to Fig. 2, Fig. 3 and Fig. 4
Cross sectional shape be circular, square or rectangle.Other compositions and annexation are identical with specific embodiment three.
Specific embodiment five：Present embodiment, present embodiment and specific embodiment party are illustrated with reference to Fig. 5, Fig. 6 and Fig. 7
It also increases unlike formula four several web member supports 5, and the quantity of steel flanged beam arch rib 2 is three, from terms of section：Three real abdomens
Formula arch rib 2 presses triangle or del arrangement, and several web members supports 5, and web member are provided between every adjacent steel flanged beam arch rib 2
The two ends of support 5 are affixed with both sides steel flanged beam arch rib 2 respectively.Present embodiment is encircleed for purlin formula.Other composition and annexation with
Specific embodiment four is identical.
Specific embodiment six：Present embodiment, present embodiment and specific embodiment party are illustrated with reference to Fig. 5, Fig. 6 and Fig. 7
It also increases unlike formula four several web member supports 5, and the quantity of steel flanged beam arch rib 2 is four, from terms of section：Four real abdomens
Formula arch rib 2 presses rectangle or inverted trapezoidal arrangement, and several web members supports 5 are provided between every adjacent steel flanged beam arch rib 2, and web member is supported
5 two ends are affixed with both sides steel flanged beam arch rib 2 respectively.Present embodiment is encircleed for purlin formula.Other composition and annexation with it is specific
Implementation method four is identical.
Specific embodiment seven：Present embodiment is illustrated with reference to Fig. 5~Fig. 9, present embodiment web member support 5 is steel pipe.
Other compositions and annexation are identical with specific embodiment five or six.
Specific embodiment eight：Present embodiment is illustrated with reference to Fig. 5~Fig. 9, the web member support 5 of present embodiment is steel pipe
4 and FRP layers 3 multiple tube being composited.Other compositions and annexation are identical with specific embodiment seven.
Claims (8)
1. a kind of outsourcing FRP steel pipe arch structures, it is characterised in that：The outsourcing FRP steel pipes arch structure includes steel flanged beam arch rib (2)
With two bases (1), two bases (1) are symmetricly set on the two ends of steel flanged beam arch rib (2), and the steel flanged beam arch rib (2) includes
Steel pipe (4) and FRP layers (3), FRP layers (3) are coated on the outer layer of steel pipe (4), and FRP layers (3) with steel pipe (4) by resin-bonded
Into multiple tube.
2. a kind of outsourcing FRP steel pipe arch structures according to claim 1, it is characterised in that：Described FRP layers (3) are one layer
Or the fibrous material of multilayer, described fibrous material is fiberglass reinforced plastics, carbon fibre reinforced plastic, basalt fibre increase
One or more in strong plastics and aromatic polyamide fiber reinforced plastics mix and form.
3. a kind of outsourcing FRP steel pipe arch structures according to claim 1 and 2, it is characterised in that：The resin is asphalt mixtures modified by epoxy resin
Fat, unsaturated polyester resin, vinylite or phenolic resin.
4. a kind of outsourcing FRP steel pipe arch structures according to claim 3, it is characterised in that：The steel flanged beam arch rib (2)
Cross sectional shape is circular, square or rectangle.
5. a kind of outsourcing FRP steel pipe arch structures according to claim 4, it is characterised in that：The outsourcing FRP tubular arch knots
Structure also includes several web members support (5), and the quantity of steel flanged beam arch rib (2) is three, from terms of section：Three steel flanged beam arch ribs (2)
Arranged by triangle or del, several web members support (5) are provided between every adjacent steel flanged beam arch rib (2).
6. a kind of outsourcing FRP steel pipe arch structures according to claim 4, it is characterised in that：The outsourcing FRP tubular arch knots
Structure also includes several web members support (5), and the quantity of steel flanged beam arch rib (2) is four, from terms of section：Four steel flanged beam arch ribs (2)
Arranged by rectangle or inverted trapezoidal, several web members support (5) are provided between every adjacent steel flanged beam arch rib (2).
7. a kind of outsourcing FRP steel pipe arch structures according to claim 5 or 6, it is characterised in that：The web member supports (5)
It is steel pipe.
8. a kind of outsourcing FRP steel pipe arch structures according to claim 7, it is characterised in that：Web member support (5) is steel
The multiple tube that pipe (4) and FRP layers (3) is composited.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710198087.1A CN106835935A (en) | 2017-03-29 | 2017-03-29 | A kind of outsourcing FRP steel pipe arch structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710198087.1A CN106835935A (en) | 2017-03-29 | 2017-03-29 | A kind of outsourcing FRP steel pipe arch structures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106835935A true CN106835935A (en) | 2017-06-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710198087.1A Pending CN106835935A (en) | 2017-03-29 | 2017-03-29 | A kind of outsourcing FRP steel pipe arch structures |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113622967A (en) * | 2020-05-08 | 2021-11-09 | 新疆大学 | FRP (fiber reinforced plastic) -steel wire mesh framework plastic composite pipe constraint coal gangue concrete pier column and construction method thereof |
| CN115370069A (en) * | 2021-08-29 | 2022-11-22 | 沈阳大学 | BFRP-steel combined chord truss and assembling implementation method thereof |
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| CN1740472A (en) * | 2004-08-27 | 2006-03-01 | 上海温兴生物工程有限公司 | Three-layer tubular steel-plastic compounding structure member |
| CN201865246U (en) * | 2010-11-20 | 2011-06-15 | 大连理工大学 | Fiber reinforce plastic (FRP)-steel composite tube concrete column |
| CN202117165U (en) * | 2011-04-06 | 2012-01-18 | 南京工业大学 | Fiber composite material cylinder restrained steel pipe concrete composite structure |
| CN202390752U (en) * | 2011-10-13 | 2012-08-22 | 南京市公路建设处 | Fiber-steel composite pipe reinforced concrete pier |
| JP2013155600A (en) * | 2013-04-10 | 2013-08-15 | Ohbayashi Corp | Bridge pier of composite steel pipe-concrete structure |
| CN103485481A (en) * | 2013-09-16 | 2014-01-01 | 北京工业大学 | Hybrid fiber winding steel tube internally-installed reactive powder concrete member and preparation method |
| CN203654155U (en) * | 2013-11-27 | 2014-06-18 | 中铁第四勘察设计院集团有限公司 | Steel tube truss arch bridge |
| CN206635633U (en) * | 2017-03-29 | 2017-11-14 | 哈尔滨工业大学 | A kind of outsourcing FRP steel pipe arch structures |
-
2017
- 2017-03-29 CN CN201710198087.1A patent/CN106835935A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1740472A (en) * | 2004-08-27 | 2006-03-01 | 上海温兴生物工程有限公司 | Three-layer tubular steel-plastic compounding structure member |
| CN201865246U (en) * | 2010-11-20 | 2011-06-15 | 大连理工大学 | Fiber reinforce plastic (FRP)-steel composite tube concrete column |
| CN202117165U (en) * | 2011-04-06 | 2012-01-18 | 南京工业大学 | Fiber composite material cylinder restrained steel pipe concrete composite structure |
| CN202390752U (en) * | 2011-10-13 | 2012-08-22 | 南京市公路建设处 | Fiber-steel composite pipe reinforced concrete pier |
| JP2013155600A (en) * | 2013-04-10 | 2013-08-15 | Ohbayashi Corp | Bridge pier of composite steel pipe-concrete structure |
| CN103485481A (en) * | 2013-09-16 | 2014-01-01 | 北京工业大学 | Hybrid fiber winding steel tube internally-installed reactive powder concrete member and preparation method |
| CN203654155U (en) * | 2013-11-27 | 2014-06-18 | 中铁第四勘察设计院集团有限公司 | Steel tube truss arch bridge |
| CN206635633U (en) * | 2017-03-29 | 2017-11-14 | 哈尔滨工业大学 | A kind of outsourcing FRP steel pipe arch structures |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113622967A (en) * | 2020-05-08 | 2021-11-09 | 新疆大学 | FRP (fiber reinforced plastic) -steel wire mesh framework plastic composite pipe constraint coal gangue concrete pier column and construction method thereof |
| CN113622967B (en) * | 2020-05-08 | 2023-09-26 | 新疆大学 | FRP-steel wire mesh skeleton plastic composite pipe constraint gangue concrete pier column and construction method thereof |
| CN115370069A (en) * | 2021-08-29 | 2022-11-22 | 沈阳大学 | BFRP-steel combined chord truss and assembling implementation method thereof |
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