CN107806010A - A kind of assembled multiple tube seawater marine sand concrete bridge pier and preparation method - Google Patents
A kind of assembled multiple tube seawater marine sand concrete bridge pier and preparation method Download PDFInfo
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- CN107806010A CN107806010A CN201711037936.1A CN201711037936A CN107806010A CN 107806010 A CN107806010 A CN 107806010A CN 201711037936 A CN201711037936 A CN 201711037936A CN 107806010 A CN107806010 A CN 107806010A
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- sand concrete
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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
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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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
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Abstract
The invention discloses a kind of assembled multiple tube seawater marine sand concrete bridge pier,The structure is made up of multiple stackable multiple tube seawater marine sand concrete column sections (100),Connected and be integrated by post-stress,It is characterized in that described multiple tube seawater marine sand concrete pier column section (100) is by multiple tube (1),Seawater marine sand concrete (2),Corrugated conduit (3),Presstressed reinforcing steel (4),Shearing resistance muscle (7) collectively forms,A pair and more than a pair fins (6) and groove (5) are provided between each two multiple tube seawater marine sand concrete pier column section (100) seam,By being bonded after cementing material between fin (6) and groove (5),Each multiple tube seawater marine sand concrete pier column section (100) is provided with corrugated conduit (3) along short transverse,One and more than one presstressed reinforcing steel (4) are disposed through in the corrugated conduit (3) of each column section.The present invention has the advantages that good endurance, high capacity, good corrosion resistance, material easily take, are advantageous to sustainable development; simultaneously; structure have can scale is prefabricated, transport, it is easy for installation, the construction period is short, power consumption is low, environmental pollution is small, be applicable to offshore engineering structure construction.
Description
Technical field
The invention belongs to civil engineering structure technical field, and in particular to a kind of assembled multiple tube seawater marine sand concrete
Bridge pier and preparation method.
Background technology
In recent years, with the continuous development of material science and the progress of bridge design technology, casual labourer is pursued in bridge construction
Phase, high efficiency, high quality, low stain turn into new development trend.In China, the prefabrication and assembly construction technology of bridge superstructure
It is quite ripe, and the prefabricated of substructure is still within the elementary step, the assembled of bridge pier is lacked experience.Compared to cast-in-place
Traditional construction mode, assembled bridge pier has that construction area area is small, and environmental pollution is small, and short construction period, security
The advantages that high.
With being continuously increased for engineering construction amount, the trend of seawater sea sand resources is more and more obvious, but coastal waters and ocean
Engineering construction will face the spontaneous corrosion environment of harshness, and chloride and sulfate in seawater sea sand etc. can be accelerated in concrete
Steel bar corrosion, there is negative effect to concrete durability, constrain application of the seawater sea sand in concrete.According to traditional
Fresh water river sand is raw material, and its exploitation and cost of transportation etc. greatly constrain the development of ocean engineering construction, and comprehensive benefit
It is low.
Traditional concrete filled steel tube has the features such as bearing capacity is high, and ductility is good, is widely used in conventional environment structure
In.However, after seawater marine sand concrete is substituted into normal concrete, steel pipe certainly will be faced in the environment of the chlorion of high concentration
The problem of corrosion, this is the urgent need to resolve that concrete filled steel tube is applied in ocean engineering.Therefore, engineering circles from materials purification and
The angle of protection is set out, it is proposed that the resistance rust measure such as sea sand desalting, addition corrosion inhibitor, reinforcing bar protection, but these methods are not
Construction costs is considerably increased under conditions of change structural behaviour, corrosion problem can not be fundamentally avoided, ensure structure
Durability.
Fibre reinforced composites (FRP) are made up of fibrous material and resin matrix, have very strong corrosion resistance
With good designability, while also lightweight, it is high-strength the advantages that, it can be logical with traditional material (concrete, steel, timber etc.)
The common stress of rational combining form is crossed, conventional fiber type has glass fibre, carbon fiber, aramid fiber, basalt fibre
Deng.
The content of the invention
It is an object of the invention to provide a kind of assembled multiple tube seawater marine sand concrete bridge pier and preparation method, assembled
Bridge pier structure solve traditional cast-in-place construction bridge pier account for floor area big, long construction period, environmental pollution is serious, security is poor,
The defects such as efficiency is low, compound seawater marine sand concrete bridge pier structure, using fibre reinforced composites (FRP), fundamentally keep away
Exempt from common steel tube concrete and the problem of steel pipe corrosion, solve the easy flexing of steel pipe, knot in moist, high Cl- concentration environment
The technological deficiencies such as structure poor durability.Abundant seawater sea sand resources are taken full advantage of, cost-effective, the construction band to ocean engineering
Huge comprehensive benefit is carried out.
The technical scheme is that：A kind of assembled multiple tube seawater marine sand concrete bridge pier, the structure by it is multiple can
The multiple tube seawater marine sand concrete column section composition of superposition, is connected by post-stress and is integrated, its feature
It is described multiple tube seawater marine sand concrete pier column section by multiple tube, seawater marine sand concrete, corrugated conduit, pre-
Stress rib, shearing resistance muscle are collectively formed, and multiple tube is bonded in the inner and outer wall structure of steel pipe by interior fibrous layer, outer fibre layer respectively
Into compound tube thickness is gradually increased by pier top to pier bottom, each two multiple tube seawater marine sand concrete pier column segmental joints
Between be provided with a pair and more than a pair fins and groove, the shape and size of fin and groove are mutually matched, rise socket joint connection
Shearing resistance effect, by being bonded after cementing material between fin and groove, each multiple tube seawater marine sand concrete pier column section
Section is provided with corrugated conduit along short transverse, and one and more than one presstressed reinforcing steel are arranged along section surrounding, and are disposed through
In the corrugated conduit of each column section, presstressed reinforcing steel one end, which is fixedly installed on inside cushion cap, also serves as keeper.
In structure of the present invention, the connecting portion of each multiple tube seawater marine sand concrete pier column section is discontinuous, institute
So that when by longitudinal load, multiple tube is mainly that internal seawater marine sand concrete provides hoop constraint effect, longitudinal bending resistance master
To be undertaken by presstressed reinforcing steel, the inner and outer wall bonding that multiple tube is bonded in steel pipe by interior fibrous layer, outer fibre layer respectively is compound
Form, while interior fibrous layer, outer fibre layer provide enhancing stress for steel pipe, corrosion-resistant protection, the compound thickness of pipe are provided for steel pipe
Degree is gradually increased by pier top to pier bottom, effectively strengthens the binding effect of pier bottom areas of plasticity hinge concrete, except seawater sea sand is mixed
Solidifying soil is outer, and all structure elements all use corrosion resistant material, directly to establish skill using seawater sea sand casting concrete
Art basis.Mutual socket joint between fin and groove and shearing resistance muscle and connection duct, ensure that the structural integrity turned parts into the whole,
Shear resistant capacity especially at segmental joints.
The shape of cross section of described multiple tube seawater marine sand concrete column section be chamfering rectangle, circle, ellipse,
Or dumb-bell shape, the exterior surface dimension of its each column section is in the same size, corresponding neat smooth.
Described interior fibrous layer and outer fibre layer can be one in glass fibre, carbon fiber, aramid fiber, basalt fibre
Kind or wherein a few specific admixtures form, and between 0~90 °, adhesive glue uses ring for machine direction and component axis angular separation
Oxygen resin glue, realized using hand paste laminate layer technique, vacuum assistant resin infused or Mechanical entanglement processes viscous with the inside and outside wall of steel pipe
Tie compound.
Described seawater marine sand concrete using seawater and sea sand as raw material, match somebody with somebody by addition cement, rubble, water reducer, swelling agent
System forms, and seawater and sea sand can gather materials on the spot, and to carry out structure prefabricated, reduces the cost of transportation of material, has significantly saved ocean work
Duration, cost and the natural resources of journey, greatly reduce the carbon emission amount during engineering-built, are advantageous to sustainable development.
Described corrugated conduit is that rubber, plastics or composite make, its plan-position on each column section
It is identical with size and mutually corresponding.
Described shearing resistance muscle be one and more than one stainless reinforcing bar, stainless steel tube, composite material bar, composite material tube,
Fiber and steel composite reinforcing or fiber and steel pipe, are anchored among the fin of each column section, anchorage length is more than fin
Height, be provided with shearing resistance muscle connection duct in the groove of corresponding column section, connection pore size is more than or equal to shearing resistance muscle chi
Very little, shearing resistance muscle is with being connected duct by being anchored after cementing material.
Described presstressed reinforcing steel is composite material bar, composite rope, composite and steel composite reinforcing, composite and steel
Compound rope.
Described cementing material is one kind in resin base cementing material or cement base cementing material.
A kind of preparation method of assembled multiple tube seawater marine sand concrete bridge pier, it is characterised in that including at least following
Step：
A. prefabricated stand column section：Stood according to predetermined cross sectional shape and the prefabricated multiple multiple tube seawater marine sand concretes of size
Post section, when prefabricated, the steel pipe of process requirements thickness first, according to predetermined angular and the number of plies bond in fibrous layer and outer fibre layer
Multiple tube is formed, poured with predetermined match ratio, conserve seawater marine sand concrete, obtain multiple tube seawater marine sand concrete column section
Section, is provided with a pair between each two multiple tube seawater marine sand concrete pier column segmental joints and more than a pair fins and recessed
The shape and size of groove, fin and groove are mutually matched, and when prefabricated, set corrugated conduit and shearing resistance muscle, shearing resistance muscle is anchored in often
Among the fin of individual column section.
B. arrangement prestress muscle：One end of presstressed reinforcing steel is fixed in cushion cap connection plane in advance, keeper is also served as, is
Section connection provides precise positioning during the assembled in situ of column section, and presstressed reinforcing steel is disposed through the bellows of each column section
In road.
C. brushing cementing material：The end face of seam between column section, between column section and cushion cap equably applies
Brush cementing material, while cementing material is injected in the connection duct of shearing resistance muscle, cementing material is resin base cementing material or water
One kind in mud base cementing material.
D. hoisting upright column section：Prefabricated multiple tube seawater marine sand concrete column segment lifting is connected into plane in cushion cap
On, next multiple tube seawater marine sand concrete column section is lifted successively, it is between column section and cushion cap or two neighboring
A pair between multiple tube seawater marine sand concrete column section and more than one pair of fin and groove are according to shape, size and side
To corresponding socket joint, the mutually corresponding connection in connection duct of shearing resistance muscle and inside grooves inside fin, during lifting, prestressing force
Muscle is disposed through in the corrugated conduit of each column section.
E. hoisting upright column section is repeated：Repeat the above steps D, is sequentially overlapped installation multiple tube seawater marine sand concrete column
Section, until meeting the requirement of pier column height.
F. stretch-draw anchor presstressed reinforcing steel：Tensioned prestressing bar, stretching end are located at assembled multiple tube seawater marine sand concrete
Pier coping portion, the end of presstressed reinforcing steel is fixed by anchorage, slurry seal anchors after reaching requirement.
There is the present invention good endurance, high capacity, good corrosion resistance, material easily to take, it is excellent to be advantageous to sustainable development etc.
Point, meanwhile, structure have can scale is prefabricated, transport, it is easy for installation, the construction period is short, power consumption is low, environmental pollution is small.Specifically
Have the beneficial effect that；
(1) construction area area is small, and the construction period is short.Assembled multiple tube seawater marine sand concrete bridge pier can be according to scene
Bridge pier requirement for height precasting yard it is segmented, standardization, scale it is prefabricated, desirable can be reached by vibrating and conserving, to work
Cheng Zhiliang has a higher fraction, accelerates construction speed during assembled in situ, shortens the construction period.
(2) good endurance.The inner and outer wall that multiple tube is bonded in steel pipe by interior fibrous layer, outer fibre layer respectively bonds again
Conjunction forms, shearing resistance muscle be stainless reinforcing bar, stainless steel tube, composite material bar, composite material tube, fiber and steel composite reinforcing or fiber with
Steel pipe, main material all have the ability of the chloride ion corrosion in resistance seawater marine sand concrete, realized to seawater and sea
The direct utilization of sand resource.
(3) good integrity.Between shape, the one-to-one fin of size and direction and groove socket joint connect, shearing resistance muscle with
The anchor connection in duct is connected, and cementing material bonding connection is all scribbled at column segmental joints, improves the whole of bridge pier entirety
The shear-carrying capacity of body and seam crossing.
(4) bearing capacity is high.Multiple tube provides sufficient hoop constraint effect for the seawater marine sand concrete of inside, fills
Divide the bearing capacity for improving assembled multiple tube seawater marine sand concrete bridge pier.
(5) sustainable development is advantageous to.Can be direct in compound pipe concrete the invention enables seawater marine sand concrete
Using seawater sea sand is inexhaustible as raw material, reduces the demand to fresh water and river sand.Compared to traditional cast-in-place construction
Technique, substantial amounts of support, template can be saved in work progress, reach the purpose for saving timber, be advantageous to environment can
Sustainable development.
Brief description of the drawings：
Fig. 1 is a kind of perspective exploded view of assembled multiple tube seawater marine sand concrete bridge pier；
Fig. 2 is a kind of diagrammatic cross-section of assembled multiple tube seawater marine sand concrete bridge pier；
Fig. 3 is a kind of column section schematic perspective view of assembled multiple tube seawater marine sand concrete bridge pier；
Fig. 4 is that the assembled multiple tube seawater marine sand concrete pier column section vertical section for setting a pair of fin grooves shows
It is intended to；
Fig. 5 is that the assembled multiple tube seawater marine sand concrete pier column section vertical section for setting two pairs of fin grooves shows
It is intended to；
Fig. 6 is to set the assembled multiple tube seawater marine sand concrete pier column section rectangle of a pair of fin grooves cross-section
Face schematic diagram；
Fig. 7 is to set the assembled multiple tube seawater marine sand concrete pier column section rectangle of two pairs of fin grooves cross-section
Face schematic diagram；
Fig. 8 is the assembled multiple tube seawater marine sand concrete pier column section rectangle for setting a pair of two-way fin grooves
Schematic cross-sectional view；
Fig. 9 is to set the assembled multiple tube seawater marine sand concrete pier column section circle of a pair of fin grooves cross-section
Face schematic diagram；
Figure 10 is to set the assembled multiple tube seawater marine sand concrete pier column section of two pairs of fin grooves circular horizontal
Sectional schematic diagram；
Figure 11 is the assembled multiple tube seawater marine sand concrete pier column section circle for setting a pair of two-way fin grooves
Shape schematic cross-sectional view；
Figure 12 is a kind of process chart of the preparation method of assembled multiple tube seawater marine sand concrete bridge pier.
In 1~accompanying drawing of accompanying drawing 12,1 is multiple tube；2 be seawater marine sand concrete；3 be corrugated conduit；4 be prestressing force
Muscle；5 be groove；6 be fin；7 be shearing resistance muscle；11 be outer fibre layer；12 be steel pipe；13 be interior fibrous layer；100 be multiple tube sea
Water marine sand concrete column section；200 be cushion cap；300 be anchorage.
Embodiment：
In order to which technical characteristic, purpose and the effect of the present invention is more clearly understood, now control illustrates this hair
Bright embodiment, but protection scope of the present invention is not limited to embodiment in detail below.
A kind of assembled multiple tube seawater marine sand concrete bridge pier, the structure is by multiple stackable multiple tube seawater sea sands
Concrete column section 100 forms, and is connected and is integrated by post-stress, it is characterised in that described multiple tube sea
Water marine sand concrete pier column section 100 is by multiple tube 1, seawater marine sand concrete 2, corrugated conduit 3, presstressed reinforcing steel 4, shearing resistance
Muscle 7 is collectively formed, and the inner and outer wall that multiple tube 1 is bonded in steel pipe 12 by interior fibrous layer 13, outer fibre layer 11 respectively is formed, multiple
Close the thickness of pipe 1 gradually increased by pier top to pier bottom, the seam of each two multiple tube seawater marine sand concrete pier column section 100 it
Between be provided with a pair and more than a pair fins 6 and groove 5, the shape and size of fin 6 and groove 5 are mutually matched, rise socket joint connect
Shearing resistance effect is connect, by being bonded after cementing material between fin 6 and groove 5, each multiple tube seawater marine sand concrete bridge pier is stood
Post section 100 is provided with corrugated conduit 3 along short transverse, and one and more than one presstressed reinforcing steel 4 are arranged along section surrounding, and are passed through
Wear and be placed in the corrugated conduit 3 of each column section, the one end of presstressed reinforcing steel 4, which is fixedly installed on inside cushion cap 200, also serves as positioning
Part.
The shape of cross section of described multiple tube seawater marine sand concrete column section 100 is chamfering rectangle, circle, ellipse
Shape or dumb-bell shape, the exterior surface dimension of its each column section is in the same size, corresponding neat smooth.
Described interior fibrous layer 13 and outer fibre layer 11 can be in glass fibre, carbon fiber, aramid fiber, basalt fibre
One kind or wherein a few specific admixtures form, between 0~90 °, adhesive glue is adopted for machine direction and component axis angular separation
With epoxide-resin glue, laminate layer technique, vacuum assistant resin infused or Mechanical entanglement processes are pasted using hand and realized and the inside and outside wall of steel pipe
Bonding it is compound.
Described seawater marine sand concrete 2 using seawater and sea sand as raw material, match somebody with somebody by addition cement, rubble, water reducer, swelling agent
System forms.
Described corrugated conduit 3 is that rubber, plastics or composite make, its plan-position on each column section
It is identical with size and mutually corresponding.
Described shearing resistance muscle 7 be one and more than one stainless reinforcing bar, stainless steel tube, composite material bar, composite material tube,
Fiber and steel composite reinforcing or fiber and steel pipe, are anchored among the fin 6 of each column section, anchorage length is more than fin
6 height, corresponds to and shearing resistance muscle connection duct is provided with the groove 5 of column section, and connection pore size is more than or equal to shearing resistance muscle 7
Size, shearing resistance muscle 7 is with being connected duct by being anchored after cementing material.
Described presstressed reinforcing steel 7 be composite material bar, composite rope, composite and steel composite reinforcing, composite with
The compound rope of steel.
Described cementing material is one kind in resin base cementing material or cement base cementing material.
A kind of preparation method of assembled multiple tube seawater marine sand concrete bridge pier, it is characterised in that including at least following
Step：
A. prefabricated stand column section：Stood according to predetermined cross sectional shape and the prefabricated multiple multiple tube seawater marine sand concretes of size
Post section 100, when prefabricated, the steel pipe 12 of process requirements thickness first, according to predetermined angular and the number of plies bond in the He of fibrous layer 13
Outer fibre layer 11 forms multiple tube 1, is poured with predetermined match ratio, conserves seawater marine sand concrete, obtains multiple tube seawater sea sand
Concrete column section 100, be provided with a pair between each two multiple tube seawater marine sand concrete pier column segmental joints and
More than a pair fins 6 and groove 5, the shape and size of fin 6 and groove 5 are mutually matched, when prefabricated, set corrugated conduit 3 with
Shearing resistance muscle 7, shearing resistance muscle 7 are anchored among the fin 6 of each column section.
B. arrangement prestress muscle：One end of presstressed reinforcing steel 4 is fixed on into cushion cap 200 in advance to connect in plane, also serves as positioning
Part, for column section assembled in situ when section connection precise positioning is provided, presstressed reinforcing steel 4 is disposed through each column section
In corrugated conduit 3.
C. brushing cementing material：The end face of seam between column section, between column section and cushion cap equably applies
Brush cementing material, while cementing material is injected in the connection duct of shearing resistance muscle, cementing material is resin base cementing material or water
One kind in mud base cementing material.
D. hoisting upright column section：Prefabricated multiple tube seawater marine sand concrete column section 100 is lifted on into cushion cap 200 to connect
Connect in plane, lift next multiple tube seawater marine sand concrete column section 100 successively, between column section and cushion cap or
A pair between two neighboring multiple tube seawater marine sand concrete column section and more than one pair of fin 6 and groove 5 are according to shape
Shape, size and direction correspond socket joint, and the connection duct inside shearing resistance muscle 7 and groove 5 inside fin 6, which mutually corresponds to, to be connected
Connect, during lifting, presstressed reinforcing steel 4 is disposed through in the corrugated conduit 3 of each column section.
E. hoisting upright column section is repeated：Repeat the above steps D, is sequentially overlapped installation multiple tube seawater marine sand concrete column
Section 100, until meeting the requirement of pier column height.
F. stretch-draw anchor presstressed reinforcing steel：Tensioned prestressing bar 4, stretching end are located at assembled multiple tube seawater marine sand concrete
Pier coping portion, the end of presstressed reinforcing steel is fixed by anchorage 300, slurry seal anchors after reaching requirement.
In the present invention, a kind of assembled multiple tube seawater marine sand concrete bridge pier and preparation method, multiple tube and seawater are extra large
The combination application of sand concrete and precast assembly technology, obtain a kind of efficient, economical, durable, corrosion-resistant, environment-friendly, easy
Standardization and industrialized new structure, the offshore engineering structure being especially suitable under rough seas.
Claims (9)
1. a kind of assembled multiple tube seawater marine sand concrete bridge pier, the structure is mixed by multiple stackable multiple tube seawater sea sands
Solidifying native column section (100) composition, is connected by post-stress and is integrated, it is characterised in that described multiple tube sea
Water marine sand concrete pier column section (100) is by multiple tube (1), seawater marine sand concrete (2), corrugated conduit (3), prestressing force
Muscle (4), shearing resistance muscle (7) collectively form, and multiple tube (1) is bonded in steel pipe respectively by interior fibrous layer (13), outer fibre layer (11)
(12) inner and outer wall is formed, and multiple tube (1) thickness is gradually increased by pier top to pier bottom, and each two multiple tube seawater sea sand is mixed
Coagulate and be provided with a pair and more than a pair fins (6) and groove (5) between native pier column section (100) seam, fin (6) and recessed
The shape and size of groove (5) are mutually matched, and are played socket joint connection shearing resistance effect, are passed through cementing material between fin (6) and groove (5)
After bond, each multiple tube seawater marine sand concrete pier column section (100) is provided with corrugated conduit (3) along short transverse,
One and more than one presstressed reinforcing steel (4) are arranged along section surrounding, and are disposed through the corrugated conduit (3) of each column section
Interior, presstressed reinforcing steel (4) one end is fixedly installed on inside cushion cap (200) and also serves as keeper.
2. a kind of assembled multiple tube seawater marine sand concrete bridge pier according to claim 1, it is characterised in that described
The shape of cross section of multiple tube seawater marine sand concrete column section (100) is chamfering rectangle, circle, ellipse or dumb-bell shape,
The exterior surface dimension of its each column section is in the same size, corresponding neat smooth.
3. a kind of assembled multiple tube seawater marine sand concrete bridge pier according to claim 1, it is characterised in that described
Interior fibrous layer (13) and outer fibre layer (11) can be glass fibre, carbon fiber, aramid fiber, one kind in basalt fibre or its
In several specific admixtures form, machine direction and component axis angular separation are between 0~90 °.
4. a kind of assembled multiple tube seawater marine sand concrete bridge pier according to claim 1, it is characterised in that described
Using seawater and sea sand as raw material, addition cement, rubble, water reducer, swelling agent are formulated seawater marine sand concrete (2).
5. a kind of assembled multiple tube seawater marine sand concrete bridge pier according to claim 1, it is characterised in that described
Corrugated conduit (3) is that rubber, plastics or composite make, and its plan-position on each column section is identical with size simultaneously
It is mutually corresponding.
6. a kind of assembled multiple tube seawater marine sand concrete bridge pier according to claim 1, it is characterised in that described
Shearing resistance muscle (7) is that one and more than one stainless reinforcing bar, stainless steel tube, composite material bar, composite material tube, fiber and steel are compound
Muscle or fiber and steel pipe, it is anchored among the fin (6) of each column section, anchorage length is more than the height of fin (6),
Shearing resistance muscle connection duct is provided with the groove (5) of corresponding column section, connection pore size is more than or equal to shearing resistance muscle (7) chi
Very little, shearing resistance muscle (7) is with being connected duct by being anchored after cementing material.
7. a kind of assembled multiple tube seawater marine sand concrete bridge pier according to claim 1, it is characterised in that described
Presstressed reinforcing steel (7) is composite material bar, composite rope, composite and steel composite reinforcing, composite and the compound rope of steel.
A kind of 8. assembled multiple tube seawater marine sand concrete bridge pier according to claim 1 or 6, it is characterised in that institute
The cementing material stated is one kind in resin base cementing material or cement base cementing material.
9. a kind of preparation method of assembled multiple tube seawater marine sand concrete bridge pier, it is characterised in that including at least following steps
Suddenly：
A. prefabricated stand column section：According to predetermined cross sectional shape and the prefabricated multiple multiple tube seawater marine sand concrete column sections of size
Section (100), when prefabricated, the steel pipe (12) of process requirements thickness first, according to predetermined angular and the number of plies bond in fibrous layer (13)
Multiple tube (1) is formed with outer fibre layer (11), poured with predetermined match ratio, conserve seawater marine sand concrete, obtains multiple tube sea
Water marine sand concrete column section (100), set between each two multiple tube seawater marine sand concrete pier column segmental joints
There are a pair and more than a pair fins (6) and groove (5), the shape and size of fin (6) and groove (5) are mutually matched, when prefabricated,
Corrugated conduit (3) and shearing resistance muscle (7) are set, and shearing resistance muscle (7) is anchored among the fin (6) of each column section.
B. arrangement prestress muscle：One end of presstressed reinforcing steel (4) is fixed in cushion cap (200) connection plane in advance, also serves as positioning
Part, for column section assembled in situ when section connection precise positioning is provided, presstressed reinforcing steel (4) is disposed through each column section
Corrugated conduit (3) in.
C. brushing cementing material：The end face of seam between column section, between column section and cushion cap equably brushing adhesive
Material is tied, while cementing material is injected in the connection duct of shearing resistance muscle, cementing material is resin base cementing material or cement base
One kind in cementing material.
D. hoisting upright column section：Prefabricated multiple tube seawater marine sand concrete column section (100) is lifted on cushion cap (200) even
Connect in plane, lift next multiple tube seawater marine sand concrete column section (100) successively, between column section and cushion cap or
A pair between the two neighboring multiple tube seawater marine sand concrete column section of person and more than one pair of fin (6) and groove (5)
The connection duct of socket joint, the internal shearing resistance muscle (7) of fin (6) and groove (5) inside is corresponded according to shape, size and direction
Mutually corresponding connection, during lifting, presstressed reinforcing steel (4) is disposed through in the corrugated conduit (3) of each column section.
E. hoisting upright column section is repeated：Repeat the above steps D, is sequentially overlapped installation multiple tube seawater marine sand concrete column section
(100), until meeting the requirement of pier column height.
F. stretch-draw anchor presstressed reinforcing steel：Tensioned prestressing bar (4), stretching end are located at assembled multiple tube seawater marine sand concrete bridge
Pier top portion, by the end of the fixed presstressed reinforcing steel of anchorage (300), slurry seal anchors after reaching requirement.
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| CN108589514A (en) * | 2018-05-06 | 2018-09-28 | 北京工业大学 | Load-bearing and earth-quake resistant mechanism separate type precast assembly bridge pier system |
| CN109024251A (en) * | 2018-10-10 | 2018-12-18 | 南京林业大学 | A kind of prefabrication and assembly construction folded type reinforced concrete bridge pier structure |
| CN110258314A (en) * | 2019-07-26 | 2019-09-20 | 华侨大学 | A kind of novel prefabricated assembled seawater sea sand bridge pier |
| CN111379218A (en) * | 2020-04-17 | 2020-07-07 | 浙江省交通规划设计研究院有限公司 | Prefabricated pier body and prefabricated pier body installation method |
| CN111827095A (en) * | 2020-06-29 | 2020-10-27 | 中国国家铁路集团有限公司 | Prefabricated assembled hollow pier with built-in rib plates and construction method |
| CN113073575A (en) * | 2021-04-21 | 2021-07-06 | 中铁桥研科技有限公司 | Lifting structure and lifting method for cross-water-area concrete bridge |
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| CN114214918A (en) * | 2021-12-31 | 2022-03-22 | 山东大学 | Socket assembling type arch rib, arch bridge, manufacturing method and construction method |
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| CN113073575A (en) * | 2021-04-21 | 2021-07-06 | 中铁桥研科技有限公司 | Lifting structure and lifting method for cross-water-area concrete bridge |
| CN113530336A (en) * | 2021-08-02 | 2021-10-22 | 重庆大学 | Concrete column with additional replaceable damper of steel pipe concrete structure |
| CN113668369A (en) * | 2021-09-13 | 2021-11-19 | 江南大学 | Socket type connection structure of prefabricated segment reinforced concrete pier and manufacturing method |
| CN114214918A (en) * | 2021-12-31 | 2022-03-22 | 山东大学 | Socket assembling type arch rib, arch bridge, manufacturing method and construction method |
| CN114214918B (en) * | 2021-12-31 | 2022-08-23 | 山东大学 | Socket assembling type arch rib, arch bridge, manufacturing method and construction method |
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