CN110258314A - A kind of novel prefabricated assembled seawater sea sand bridge pier - Google Patents
A kind of novel prefabricated assembled seawater sea sand bridge pier Download PDFInfo
- Publication number
- CN110258314A CN110258314A CN201910682024.2A CN201910682024A CN110258314A CN 110258314 A CN110258314 A CN 110258314A CN 201910682024 A CN201910682024 A CN 201910682024A CN 110258314 A CN110258314 A CN 110258314A
- Authority
- CN
- China
- Prior art keywords
- bridge pier
- fpr
- sub
- convex block
- pipe
- Prior art date
- 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.)
- Pending
Links
- 239000004576 sand Substances 0.000 title claims abstract description 40
- 239000013535 sea water Substances 0.000 title claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- 210000002435 tendon Anatomy 0.000 claims abstract description 12
- 210000003205 muscle Anatomy 0.000 claims abstract description 10
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 9
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 9
- 238000005530 etching Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 238000005260 corrosion Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000009415 formwork Methods 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
-
- 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
-
- 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
-
- 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
- E01D2101/28—Concrete reinforced prestressed
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention provides a kind of novel prefabricated assembled seawater sea sand bridge piers, comprising: at least two along short transverse sub- bridge pier interconnected, each sub- bridge pier respectively include: FPR pipe, marine sand concrete；The FPR pipe is wrapped in outside marine sand concrete, and has been provided at circumferentially spaced multiple FPR presstressed reinforcing steels channel along FPR pipe in the marine sand concrete；FPR presstressed reinforcing steel channel extends along the short transverse of FPR pipe；The marine sand concrete has a perforative hollow channel at axle center；The upper surface of the sub- bridge pier is circumferentially arranged at intervals with a circle convex block, there is the first pre-buried FPR muscle between two neighboring convex block；The upper surface of the sub- bridge pier is circumferentially also arranged at intervals with the second pre-buried FRP tendons of a circle on the inside of convex block, is FPR presstressed reinforcing steel channel between two neighboring 2nd FPR muscle；The lower end surface of the sub- bridge pier is provided with the groove with convex block cooperation grafting, and rest part is identical as upper end surface structure on the lower end surface.Above-mentioned bridge pier overcomes marine sand concrete to the etching problem of principal rod.
Description
Technical field
The invention belongs to field of civil engineering, and in particular to the bridge pier in a kind of ocean.
Background technique
Bridge pier in ocean all suffers from the danger that pier shaft reinforcing bar is corroded, and steel bar corrosion influences the durability of bridge pier
It is huge.Currently, the measure that various countries use substantially has following three kinds.One, construction quality is controlled, concrete is further strengthened
Density.Two, using cathode protection method, but this method cost is prohibitively expensive.Three, this method be reinforcing bar is changed to it is stainless
Steel, but this method cost is also prohibitively expensive.In general, these methods are all palliative.As fibrous material is continuous
Development, fibre reinforced materials (hereinafter referred FRP material) technology are gradually mature, it may be considered that are replaced using FRP tendons general
Logical reinforcing bar.The tensile strength of FRP tendons upper many bigger than reinforcing bar, is but plastically deformed smaller.And the self weight of FRP tendons is also compared
Small, close with thermal expansion coefficient of concrete, guarantee can have good cooperative work performance with concrete.Although FRP tendons and mixed
Coagulate soil adhesive property be not so good as with regular reinforcement, but one can be increased to FRP tendons surface treatment and also in concrete
A little fibers improve adhesive property.
In order to protect environment, the current most area in China has all forbidden exploiting river sand, and the range forbidden can be got over
Come bigger.This causes to be currently available that river sand is fewer and fewer, and regular reinforcement can be corroded by having in reserves sea sand very rich
Chloride ion, and if use FRP tendons substitution reinforcing bar if the principal rod in marine sand concrete, not only can solve sea sand
Be not suitable for the problem of being applied to building structure, the resistance to corrosion of building in seawater can also be greatly improved.Just because of FRP
This performance of muscle, makes FRP tendons hold out broad prospects in marine building.
Concrete pier in ocean is faced with complicated rugged environment, the erosion of chloride ion, and seawater washes away, temperature
Difference and the ship accidental impact problem that may be faced etc..It, can be significantly if increasing by one layer of steel pipe outside bridge pier
The ability that concrete column copes with these problems is improved, but steel pipe is not appropriate for the environment of ocean, steel pipe can be replaced with FRP
Pipe, not only can be improved the corrosion resistance of concrete column, and can greatly enhance the ductility and bending resistance of concrete column in this way
Bearing capacity.
Summary of the invention
The main technical problem to be solved by the present invention is to provide purpose be to provide a kind of novel prefabricated assembled seawater
Sea sand bridge pier overcomes marine sand concrete to the etching problem of principal rod.
In order to solve the above technical problems, the present invention provides a kind of novel prefabricated assembled seawater sea sand bridge pier, packets
Include: at least two along short transverse sub- bridge pier interconnected, each sub- bridge pier respectively include: FPR pipe, sea sand coagulation
Soil；The FPR pipe is wrapped in outside marine sand concrete, and being provided at circumferentially spaced along FPR pipe in the marine sand concrete
Multiple FPR presstressed reinforcing steels channel；FPR presstressed reinforcing steel channel extends along the short transverse of FPR pipe；The marine sand concrete
There is a perforative hollow channel at axle center；
The upper surface of the sub- bridge pier is circumferentially arranged at intervals with a circle convex block, has between two neighboring convex block pre-buried
First FPR muscle；The upper surface of the sub- bridge pier is circumferentially also arranged at intervals with the 2nd pre-buried FRP of a circle on the inside of convex block
Muscle is FPR presstressed reinforcing steel channel between two neighboring 2nd FPR muscle；The lower end surface of the sub- bridge pier be provided with it is described
Convex block cooperates the groove of grafting, and rest part is identical as upper end surface structure on the lower end surface.
In a preferred embodiment: being connected by way of prestressed FRP rebar tensioning between two neighboring sub- bridge pier.
In a preferred embodiment: the successively tensioning between multiple sub- bridge piers forms subsection tension.
In a preferred embodiment: the height of the convex block and the depth of groove be not identical, so that two neighboring sub- bridge pier
Between form seam.
Compared to the prior art, technical solution of the present invention have it is following the utility model has the advantages that
1. the novel prefabricated assembled seawater sea sand bridge pier of one kind provided by the invention, since marine environment is not appropriate for steel pipe
Concrete, therefore steel pipe is replaced using FRP pipe, sea sand concrete columns ductility can be not only greatly improved in FRP pipe as steel pipe
And anti-bending bearing capacity, it can also greatly enhance the resistance to corrosion of bridge pier.
2. the novel prefabricated assembled seawater sea sand bridge pier of one kind provided by the invention, the section outer layer of sub- bridge pier is FRP pipe,
Internal layer is hollow marine sand concrete, and has reserved FPR presstressed reinforcing steel channel.Splicing when using precast assembly method,
Factory is poured using segmented, and reserved FPR presstressed reinforcing steel channel can be made as three sections of several length by taking a bridge pier as an example in advance,
First segment and second segment transport the post-stretching at scene, then by second segment and the tensioning of third section, and when connection passes through subsection tension
Mode, first by bridge pier section I and II tensioning of bridge pier section, then the duct sealing off and covering anchorage on face that II section is combined with I section, then by bridge pier section
II with III tensioning of bridge pier section, epoxy resin mortar is finally perfused, and pour in seam crossing formwork, is being connect after design strength to be achieved again
FRP material is covered at seam.
3. the novel prefabricated assembled seawater sea sand bridge pier of one kind provided by the invention, the junction of two sub- bridge piers is set on one side
Several raised concrete blocks are set, another side is then arranged several corresponding grooves, certain mechanical snap is provided for junction
Power.Every one side of junction can pre-buried several FRP tendons, guarantee the intensity of junction.
Detailed description of the invention
Fig. 1 is the schematic cross-section of preferred embodiment of the present invention neutron bridge pier；
Fig. 2 is the upper surface schematic diagram of preferred embodiment of the present invention neutron bridge pier；
Fig. 3 is the upper surface perspective view of preferred embodiment of the present invention neutron bridge pier；
Fig. 4 is the lower end surface perspective view of preferred embodiment of the present invention neutron bridge pier；
Fig. 5 is the connection schematic diagram of preferred embodiment of the present invention neutron bridge pier.
Specific embodiment
Technical scheme is described further in the following with reference to the drawings and specific embodiments.
With reference to Fig. 1-5, a kind of novel prefabricated assembled seawater sea sand bridge pier, comprising: three mutually interconnect along short transverse
The sub- bridge pier connect, each sub- bridge pier respectively include: FPR pipe 1, marine sand concrete 2；The FPR pipe 1 is wrapped in marine sand concrete
Outside 2, and multiple FPR presstressed reinforcing steels channel 3 has been provided at circumferentially spaced along FPR pipe in the marine sand concrete 2；It is described
FPR presstressed reinforcing steel channel 3 extends along the short transverse of FPR pipe；The marine sand concrete 2 have at the axle center one it is perforative in
Empty channel；
Above-mentioned novel prefabricated assembled seawater sea sand bridge pier, since marine environment is not appropriate for concrete filled steel tube,
Steel pipe is replaced using FRP pipe 1,2 column ductility of marine sand concrete and bending resistance can be not only greatly improved in FRP pipe 1 as steel pipe
Bearing capacity, the resistance to corrosion of acceptable greatly bridge pier.
The upper surface of the sub- bridge pier is circumferentially arranged at intervals with a circle convex block 4, has between two neighboring convex block 4 pre-buried
FPR muscle 5；The upper surface of the sub- bridge pier is circumferentially also arranged at intervals with the pre-buried FRP tendons 5 of a circle, phase in 4 inside of convex block
It is FPR presstressed reinforcing steel channel 3 between adjacent two the 2nd FPR muscle；The lower end surface of the sub- bridge pier is provided with and the convex block 4
Cooperate the groove 6 of grafting, rest part is identical as upper end surface structure on the lower end surface.
It is connected by way of prestressed FRP rebar tensioning between two neighboring sub- bridge pier.Specifically multiple sub- bridge piers
Between successively tensioning, the mode for forming subsection tension is attached.By taking a bridge pier as an example, it can be made as the three of several length in advance
Section, first segment and second segment transport the post-stretching at scene, then by second segment and the tensioning of third section, and when connection passes through subsection tension
Mode, first by bridge pier section I and II tensioning of bridge pier section, then the duct sealing off and covering anchorage on face that II section is combined with I section, then by bridge pier
Section II and III tensioning of bridge pier section, are finally perfused epoxy resin mortar, and pour in seam crossing formwork, exist again after design strength to be achieved
Seam crossing covers FRP material.
The height of convex block 4 described in the present embodiment is not identical as the depth of groove 6, so that shape between two neighboring sub- bridge pier
At seam.Convex block 4 and groove 6 provide certain mechanical snap power for junction.Every one side of junction can pre-buried several FRP tendons
5, guarantee the intensity of junction.
Described above, only the present invention preferably implements example, cannot limit the scope of implementation of the present invention according to this.I.e. according to this
Equivalent changes and modifications made by patent of invention range and description, should still be within the scope of the present invention.
Claims (4)
1. a kind of novel prefabricated assembled seawater sea sand bridge pier, characterized by comprising: at least two is mutual along short transverse
The sub- bridge pier of connection, each sub- bridge pier respectively include: FPR pipe, marine sand concrete；The FPR pipe is wrapped in marine sand concrete
Outside, and in the marine sand concrete multiple FPR presstressed reinforcing steels channel has been provided at circumferentially spaced along FPR pipe；The FPR is pre-
Stress rib channel extends along the short transverse of FPR pipe；The marine sand concrete has a perforative hollow channel at axle center；
The upper surface of the sub- bridge pier is circumferentially arranged at intervals with a circle convex block, has pre-buried first between two neighboring convex block
FPR muscle；The upper surface of the sub- bridge pier is circumferentially also arranged at intervals with the second pre-buried FRP tendons of a circle, phase on the inside of convex block
It is FPR presstressed reinforcing steel channel between adjacent two the 2nd FPR muscle；The lower end surface of the sub- bridge pier is provided with matches with the convex block
The groove of grafting is closed, rest part is identical as upper end surface structure on the lower end surface.
2. the novel prefabricated assembled seawater sea sand bridge pier of one kind according to claim 1, it is characterised in that: two neighboring son
It is connected by way of prestressed FRP rebar tensioning between bridge pier.
3. a kind of novel prefabricated assembled seawater sea sand bridge pier according to claim 1, it is characterised in that: multiple sub- bridge piers it
Between successively tensioning, formed subsection tension.
4. a kind of novel prefabricated assembled seawater sea sand bridge pier according to claim 1, it is characterised in that: the height of the convex block
Degree is not identical as the depth of groove, so that forming seam between two neighboring sub- bridge pier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910682024.2A CN110258314A (en) | 2019-07-26 | 2019-07-26 | A kind of novel prefabricated assembled seawater sea sand bridge pier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910682024.2A CN110258314A (en) | 2019-07-26 | 2019-07-26 | A kind of novel prefabricated assembled seawater sea sand bridge pier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110258314A true CN110258314A (en) | 2019-09-20 |
Family
ID=67911969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910682024.2A Pending CN110258314A (en) | 2019-07-26 | 2019-07-26 | A kind of novel prefabricated assembled seawater sea sand bridge pier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110258314A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113958347A (en) * | 2021-08-30 | 2022-01-21 | 新疆大学 | Method for constructing roadside support body by FRP (fiber reinforced plastic) constraint sand-based cementing material column |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107503470A (en) * | 2017-05-26 | 2017-12-22 | 广东工业大学 | A kind of pre-stress FRP sleeve FRP tendons sea sand seawater expansive concrete coupled column |
| KR20180019864A (en) * | 2016-08-17 | 2018-02-27 | 한국철도기술연구원 | CONSTRUCTION METHOD OF HYBRID RAILWAY BRIDGE USING PRESTRESSED CONCRETE FILLED TUBE and TRANSVERSE PRESTRESSED CONCRETE BLOCK |
| CN107806010A (en) * | 2017-10-23 | 2018-03-16 | 南京林业大学 | A kind of assembled multiple tube seawater marine sand concrete bridge pier and preparation method |
| CN109853364A (en) * | 2019-01-22 | 2019-06-07 | 西安建筑科技大学 | A kind of the precast segment assembly bridge pier connection structure and method of shearing resistance |
| CN210856912U (en) * | 2019-07-26 | 2020-06-26 | 华侨大学 | Novel prefabricated assembled sea water sea sand pier |
-
2019
- 2019-07-26 CN CN201910682024.2A patent/CN110258314A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180019864A (en) * | 2016-08-17 | 2018-02-27 | 한국철도기술연구원 | CONSTRUCTION METHOD OF HYBRID RAILWAY BRIDGE USING PRESTRESSED CONCRETE FILLED TUBE and TRANSVERSE PRESTRESSED CONCRETE BLOCK |
| CN107503470A (en) * | 2017-05-26 | 2017-12-22 | 广东工业大学 | A kind of pre-stress FRP sleeve FRP tendons sea sand seawater expansive concrete coupled column |
| CN107806010A (en) * | 2017-10-23 | 2018-03-16 | 南京林业大学 | A kind of assembled multiple tube seawater marine sand concrete bridge pier and preparation method |
| CN109853364A (en) * | 2019-01-22 | 2019-06-07 | 西安建筑科技大学 | A kind of the precast segment assembly bridge pier connection structure and method of shearing resistance |
| CN210856912U (en) * | 2019-07-26 | 2020-06-26 | 华侨大学 | Novel prefabricated assembled sea water sea sand pier |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113958347A (en) * | 2021-08-30 | 2022-01-21 | 新疆大学 | Method for constructing roadside support body by FRP (fiber reinforced plastic) constraint sand-based cementing material column |
| CN113958347B (en) * | 2021-08-30 | 2023-09-01 | 新疆大学 | Method for constructing roadside support body by FRP constraint sand-based cementing material column |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103074941B (en) | Assembling regeneration concrete node and the practice of steel bar girder beam are contained in a kind of end | |
| CN212561133U (en) | Pier is assembled in prefabricated festival segmentation high-intensity district | |
| CN109487681B (en) | Construction method of abrasion-resistant ultrahigh-performance concrete restrained segment spliced pier | |
| CN106869315A (en) | Concrete-filled steel tubular frame and its construction method with presstressed reinforcing steel | |
| CN101962951A (en) | Construction method of composite pile of fiber reinforced composite deep-water bridge and composite pile thereof | |
| CN112376408A (en) | UHPC hollow column pier and construction method thereof | |
| CN103556565A (en) | Connection construction for girders made of concrete with different performance | |
| CN208151833U (en) | A kind of construction of novel RC-masonry combination arch bridge | |
| CN107988895A (en) | A kind of bridge and its construction method | |
| CN203593939U (en) | Connecting structure of concrete beams differing in performance | |
| CN110258314A (en) | A kind of novel prefabricated assembled seawater sea sand bridge pier | |
| CN108612122B (en) | Ultra-large plane-size open caisson foundation structure and construction method thereof | |
| CN105386442A (en) | FRP wrapped prestress recycled concrete tubular pile | |
| CN112942428A (en) | Construction method of prestressed immersed tube tunnel pipe joint | |
| CN105386441A (en) | PVC pipe wrapped inner supporting cross prestress recycled concrete tubular pile | |
| CN113502835A (en) | Wet cellular assembled gridwork roof beam slope protection structure of connecting | |
| CN202247719U (en) | Corresponding corrugated pre-stressed anti-sedimentation culvert pipe for bridge | |
| CN103147438A (en) | Cast-in-place post-tensioning method-based I-shaped support pile and manufacturing method of support pile | |
| CN210856912U (en) | Novel prefabricated assembled sea water sea sand pier | |
| CN112942333A (en) | Construction method for reinforcing underwater pile foundation by vibrating and hammering ultra-high performance concrete formwork | |
| KR100517403B1 (en) | Concrete Filled Glass Fiber Reinforced Composite Pile and Connecting Structure to Pier-Type Wharf Structure | |
| CN110468679A (en) | One kind string formula FRP pipe seawater coral aggregate concrete arch bridge structure and method of construction | |
| CN110512802A (en) | The compound tubular pole of PHC and preparation method thereof using FRP as hybrid reinforcement | |
| CN110056127B (en) | Assembled box groove type FRP (fiber reinforced plastic) section light fiber sea sand concrete beam | |
| CN106948550A (en) | A kind of FRP tube nucleus heart reinforcing bar sea sand concrete columns |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |