CN109024251A - A kind of prefabrication and assembly construction folded type reinforced concrete bridge pier structure - Google Patents
A kind of prefabrication and assembly construction folded type reinforced concrete bridge pier structure Download PDFInfo
- Publication number
- CN109024251A CN109024251A CN201811194894.7A CN201811194894A CN109024251A CN 109024251 A CN109024251 A CN 109024251A CN 201811194894 A CN201811194894 A CN 201811194894A CN 109024251 A CN109024251 A CN 109024251A
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- bridge pier
- reinforced concrete
- piece
- concrete
- prefabricated reinforced
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- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 77
- 238000010276 construction Methods 0.000 title claims abstract description 44
- 238000009417 prefabrication Methods 0.000 title claims abstract description 20
- 239000004567 concrete Substances 0.000 claims abstract description 47
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 20
- 239000010959 steel Substances 0.000 claims abstract description 20
- 230000002787 reinforcement Effects 0.000 claims abstract description 16
- 230000006835 compression Effects 0.000 claims abstract description 8
- 238000007906 compression Methods 0.000 claims abstract description 8
- 238000000465 moulding Methods 0.000 claims abstract description 8
- 239000011374 ultra-high-performance concrete Substances 0.000 claims abstract description 7
- 238000003466 welding Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000005488 sandblasting Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 description 4
- 238000011065 in-situ storage Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000004574 high-performance concrete Substances 0.000 description 1
- 239000012761 high-performance material Substances 0.000 description 1
- 239000011372 high-strength concrete Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000007363 ring formation reaction Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000002023 wood Substances 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
Abstract
A kind of prefabrication and assembly construction folded type reinforced concrete bridge pier structure, including prefabricated reinforced concrete bridge pier piece, framework of steel reinforcement, cast-in-place core concrete, prefabricated reinforced concrete bridge pier piece is the armored concrete thin walled of ultra-high performance concrete preparatory pouring molding of the compression strength greater than 100MPa, multi-disc prefabricated reinforced concrete bridge pier piece overlaps arrangement along the surrounding outer rim circumferential direction of pier section, the lap-joint of prefabricated reinforced concrete bridge pier piece pours overlapping area's concrete and wraps up the adjacent two panels prefabricated reinforced concrete bridge pier piece of pre-buried dowel connection two-by-two after pouring, hollow bridge pier open tubular column is integrally formed in circumferential direction, the inner cavity of cast-in-place core concrete filling bridge pier open tubular column, and become whole with bridge pier hollow cylindrical.The present invention is folded type bridge pier structure, using prefabricated and cast-in-place combination technique, guarantees the globality of armored concrete precast pier, has the advantages of site machinery degree is high, short time limit, good integrity.
Description
Technical field
The present invention relates to a kind of bridge pier structure, especially a kind of prefabrication and assembly construction folded type reinforced concrete bridge pier structure belongs to
In civil engineering structure technical field.
Background technique
Currently, the Bridge Pier Construction in Bridges in Our Country construction mostly uses greatly the construction technology of cast in situs, this method, which has, to be applied
The advantages that work is simple, construction technology is mature, therefore be widely used in the bridge pier construction of small bridge.However the construction method
Long construction period, situ wet operation are more, and the influence to ambient enviroment is big, directly affect the traffic capacity of local road.In addition,
Bridge pier cast-in-place construction causes the template of engineering, bracket consumption huge, greatly improves engineering construction cost, has violated current
The requirement that building industrialization, green construction, low-carbon are built.In order to cope with the defect of cast-in-place core concrete bridge construction, use
Prefabricated assembled bridge has become the development trend of bridge construction.Assembled bridge pier uses the factorial production, on-site consolidation technology,
Mechanized construction level is improved to accelerate construction speed while guaranteeing construction quality, be conducive to environmental protection.It is existing
Bridge pier precast assembly technology generally using live splicing is arrived by bridge pier entirety segmentation prefabricating again, and the self weight of precast pier segment is to upper
It connects and is affected between lower segment.Assembled precast pier segment is connected in addition, stitching using stem grafting, easily leads to bridge pier globality not
Foot, construction cost high problem longer there are the period using wet seam connection assembled precast pier segment.
The present invention provides a kind of prefabrication and assembly construction folded type reinforced concrete bridge pier structure, to overcome the whole of traditional precast pier
The precast pier segment being vertically connected with is changed to the prefabricated reinforced concrete bridge pier piece of circumferential connection, folded by the problem of body deficiency
Close the advantages of arrangement core armored concrete forms entirety, merged prefabricated and cast-in-place two kinds of construction methods.
Summary of the invention
The object of the present invention is to provide a kind of reinforced concrete sandwich bridge pier structures, to solve nowadays cast-in-place bridge pier knot
The shortcomings that structure long construction period, highly energy-consuming and the existing insufficient defect of precast pier structure connection integrity, using pre-manufactured steel
Reinforced concrete bridge pier piece provides form cage for bridge pier cast in situs, and overlapping area is poured after reserved and adds cyclization to splicing, and with it is existing
It pours core concrete and forms folded type structure, guarantee the globality of armored concrete precast pier, the structure site machinery journey
Degree is high, short time limit, good integrity.
For this purpose, the present invention provides a kind of prefabrication and assembly construction folded type reinforced concrete bridge pier structure, including precast reinforced coagulation
Native bridge pier piece, framework of steel reinforcement, cast-in-place core concrete, prefabricated reinforced concrete bridge pier piece are that compression strength is super greater than 100MPa
The armored concrete thin walled of the preparatory pouring molding of high performance concrete, the setting of prefabricated reinforced concrete bridge pier plate inner surface are recessed
Convex, sandblasting, the bonding construction for drawing hair or peg, several pre-buried companies are arranged in the connecting portion of prefabricated reinforced concrete bridge pier piece two-by-two
Muscle is connect, multi-disc prefabricated reinforced concrete bridge pier piece overlaps arrangement, contiguous prefabricated reinforcing bar along the surrounding outer rim circumferential direction of pier section
The pre-buried dowel of concrete pier piece staggeredly overlaps, and overlapping is poured by the lap-joint of prefabricated reinforced concrete bridge pier piece two-by-two after pouring
Area's concrete wraps up pre-buried dowel and connects adjacent two panels prefabricated reinforced concrete bridge pier piece, and hollow bridge pier is integrally formed in circumferential direction
Open tubular column, framework of steel reinforcement are arranged in inside bridge pier open tubular column, and the lower end of framework of steel reinforcement and bridge pier open tubular column is fixed on cushion cap,
The inner cavity of cast-in-place core concrete filling bridge pier open tubular column, fully wrapped around framework of steel reinforcement, and become whole with bridge pier hollow cylindrical,
Bent cap and cast-in-place core concrete and bridge pier hollow cylindrical at be integrally attached to.
The prefabricated reinforced concrete bridge pier piece is poured in advance by the ultra-high performance concrete of 100~180MPa of compression strength
Build molding concrete thin-wall sheet material, thickness≤50cm, cross-sectional shape is any.
The bridge pier open tubular column is circumferential along the surrounding outer rim of pier section by multi-disc prefabricated reinforced concrete bridge pier piece
Polygon hollow column, circular hollow column or the special-shaped open tubular column being formed by connecting.
The pre-buried dowel of the contiguous prefabricated reinforced concrete bridge pier piece is inserted using welding, binding, sleeve or pin to be connected
Connect, after pour the intensity of overlapping area's concrete and should be greater than the intensity of cast-in-place core concrete.
The present invention overcomes well known cast-in-situ steel reinforced concrete bridge pier structures, traditional prefabricated reinforced concrete bridge pier structure institute
Existing defect while guaranteeing structural bearing capacity, light, durability, guarantees the globality of armored concrete precast pier, mentions
The high Mechanization Level of engineering construction, saves manpower and material resources, consuming energy, low, environmental pollution is small.Specifically have the beneficial effect that:
(1) it compared with traditional cast-in-situ steel reinforced concrete bridge pier structure, using prefabricated reinforced concrete bridge pier piece as template, saves
Steel or wood template, and the area of prefabricated reinforced concrete bridge pier piece is big, block part quantity is few, and assembled speed is fast.
(2) with armored concrete thin walled prefabricated reinforced concrete bridge pier piece, high-strength concrete characteristic is given full play to, is subtracted
Light prefabricated components moiety by weight reduces assembled work difficulty.
(3) bridge pier structure main part is cast-in-place core concrete, ensure that the flexibility of planform size.
(4) prefabricated reinforced concrete bridge pier piece is spliced using the method for circumferential connection, by pouring overlapping area after reserving, added
It is connected between strong prefabricated components, guarantees the globality of armored concrete precast pier.
(5) prefabricated reinforced concrete bridge pier piece plays the role of form cage in the construction process, in use with
Cast-in-place core concrete congruent form is integral, plays vertical carrying and hoop constraint effect, and prefabricated reinforced concrete bridge pier piece
Positioned at section edge, high performance material is more advantageous to bridge pier structure in the carrying stress and deformation for bearing bending load.
Detailed description of the invention:
Fig. 1 is a kind of decomposition diagram of prefabrication and assembly construction folded type reinforced concrete bridge pier structure；
Fig. 2 is a kind of sectional view of prefabrication and assembly construction folded type reinforced concrete bridge pier structure；
Fig. 3 is a kind of bridge pier main body decomposition diagram of prefabrication and assembly construction folded type reinforced concrete bridge pier structure；
Fig. 4 is a kind of bridge pier open tubular column assembly process schematic of prefabrication and assembly construction folded type reinforced concrete bridge pier structure；
Fig. 5 is a kind of bridge pier open tubular column schematic diagram of prefabrication and assembly construction folded type reinforced concrete bridge pier structure；
Fig. 6 is a kind of rectangular pier column cross-sectional view of prefabrication and assembly construction folded type reinforced concrete bridge pier structure；
Fig. 7 is a kind of circular pier column cross-sectional view of prefabrication and assembly construction folded type reinforced concrete bridge pier structure；
Fig. 8 is a kind of special-shaped pier column cross-sectional view of prefabrication and assembly construction folded type reinforced concrete bridge pier structure；
In the accompanying drawings, 1 is prefabricated reinforced concrete bridge pier piece, and 2 be framework of steel reinforcement, and 3 be cast-in-place core concrete, and 4 be to hold
Platform, 5 be bent cap, and 11 be pre-buried dowel, 12 be after pour overlapping area's concrete, 13 be bridge pier open tubular column.
Specific embodiment:
For a clearer understanding of the technical characteristics, objects and effects of the present invention, this hair of Detailed description of the invention is now compareed
Bright specific embodiment.
As shown in the picture, the present invention provides a kind of prefabrication and assembly construction folded type reinforced concrete bridge pier structure, including it is prefabricated
Reinforced concrete bridge pier piece 1, framework of steel reinforcement 2, cast-in-place core concrete 3, prefabricated reinforced concrete bridge pier piece 1 are that compression strength is big
In the armored concrete thin walled of the preparatory pouring molding of the ultra-high performance concrete of 100MPa, prefabricated reinforced concrete bridge pier piece
Bumps, sandblasting, the bonding construction for drawing hair or peg is arranged in 1 inner surface, two-by-two the connecting portion of prefabricated reinforced concrete bridge pier piece 1
Several pre-buried dowels 11 are set, and multi-disc prefabricated reinforced concrete bridge pier piece 1 is overlapped along the surrounding outer rim circumferential direction of pier section
The pre-buried dowel 11 of arrangement, contiguous prefabricated reinforced concrete bridge pier piece 1 staggeredly overlaps, two-by-two prefabricated reinforced concrete bridge pier piece
1 lap-joint pours overlapping area's concrete 12 and wraps up pre-buried dowel 11 and connect adjacent two panels prefabricated reinforced concrete bridge pier after pouring
Hollow bridge pier open tubular column 13 is integrally formed in piece 1, circumferential direction, and framework of steel reinforcement 2 is arranged in inside bridge pier open tubular column 13, framework of steel reinforcement 2
It is fixed on cushion cap 4 with the lower end of bridge pier open tubular column 13, cast-in-place core concrete 3 inserts the inner cavity of bridge pier open tubular column 13, complete
Full package framework of steel reinforcement 2, and be formed as whole with bridge pier open tubular column 13, bent cap 5 and cast-in-place core concrete 3 and bridge pier open tubular column
13 formation are integrally attached to.
The prefabricated reinforced concrete bridge pier piece 1 is preparatory by the ultra-high performance concrete of 100~180MPa of compression strength
The concrete thin-wall sheet material of pouring molding, thickness≤50cm, cross-sectional shape are any.
The bridge pier open tubular column 13 is by multi-disc prefabricated reinforced concrete bridge pier piece 1 along the surrounding outer rim ring of pier section
To the polygon hollow column, circular hollow column or special-shaped open tubular column being formed by connecting.
The pre-buried dowel 11 of the contiguous prefabricated reinforced concrete bridge pier piece 1 is inserted using welding, binding, sleeve or pin
Connection, after pour the intensity of overlapping area's concrete 12 and should be greater than the intensity of cast-in-place core concrete 3.
Embodiment one:
A kind of prefabrication and assembly construction folded type reinforced concrete bridge pier structure, including prefabricated reinforced concrete bridge pier piece 1, reinforcing bar
Frame 2, cast-in-place core concrete 3 when implementation, are first greater than the preparatory pouring molding of ultra-high performance concrete of 100MPa by compression strength
Armored concrete thin walled forms prefabricated reinforced concrete bridge pier piece 1, and the setting of 1 inner surface of prefabricated reinforced concrete bridge pier piece is recessed
Convex, sandblasting, the bonding construction for drawing hair or peg, the connecting portion setting of prefabricated reinforced concrete bridge pier piece 1 is several pre-buried two-by-two
Dowel 11；By 1 transporting and hoisting of prefabricated reinforced concrete bridge pier piece to scene, by 1 edge of multi-disc prefabricated reinforced concrete bridge pier piece
The surrounding outer rim circumferential direction of pier section overlap arrangement, the pre-buried dowel 11 of contiguous prefabricated reinforced concrete bridge pier piece 1 interlocks
Overlap joint, pre-buried dowel 11 insert connection using welding, binding, sleeve or pin；The overlap joint of prefabricated reinforced concrete bridge pier piece 1 two-by-two
Overlapping area's concrete 12 is poured after pouring and wraps up pre-buried dowel 11 and connects adjacent two panels prefabricated reinforced concrete bridge pier piece 1, ring in place
To hollow bridge pier open tubular column 13 is integrally formed, bridge pier open tubular column 13 is that polygon hollow column, circular hollow column or abnormity are hollow
Column；Finally framework of steel reinforcement 2 is arranged in inside bridge pier open tubular column 13, framework of steel reinforcement 2 and the lower end of bridge pier open tubular column 13 are fixed on
It, can be by staying slotting reinforcing bar, welding, bolt to connect on cushion cap 4, cast-in-place core concrete 3 inserts the interior of bridge pier open tubular column 13
Chamber, fully wrapped around framework of steel reinforcement 2, and be formed as whole with bridge pier open tubular column 13, bent cap 5 and cast-in-place core concrete 3 and bridge pier
What open tubular column 13 was formed is integrally attached to.
Claims (4)
1. a kind of prefabrication and assembly construction folded type reinforced concrete bridge pier structure, including prefabricated reinforced concrete bridge pier piece (1), reinforcing bar
Frame (2), cast-in-place core concrete (3), it is characterised in that: prefabricated reinforced concrete bridge pier piece (1) is greater than for compression strength
The armored concrete thin walled of the preparatory pouring molding of the ultra-high performance concrete of 100MPa, prefabricated reinforced concrete bridge pier piece
(1) inner surface setting bumps, sandblasting, the bonding construction for drawing hair or peg, the two-by-two connection of prefabricated reinforced concrete bridge pier piece (1)
Position is arranged several pre-buried dowels (11), multi-disc prefabricated reinforced concrete bridge pier piece (1) along pier section surrounding outer rim
Circumferential direction overlap joint arrangement, the pre-buried dowel (11) of contiguous prefabricated reinforced concrete bridge pier piece (1) staggeredly overlaps, precast reinforced two-by-two
The lap-joint of concrete pier piece (1) pours overlapping area's concrete (12) and wraps up the adjacent two panels of pre-buried dowel (11) connection after pouring
Hollow bridge pier open tubular column (13) is integrally formed in prefabricated reinforced concrete bridge pier piece (1), circumferential direction, and framework of steel reinforcement (2) is arranged in bridge
Pier open tubular column (13) is internal, and the lower end of framework of steel reinforcement (2) and bridge pier open tubular column (13) is fixed on cushion cap (4), cast-in-place core
Concrete (3) inserts the inner cavity of bridge pier open tubular column (13), fully wrapped around framework of steel reinforcement (2), and is formed with bridge pier open tubular column (13)
For entirety, bent cap (5) is integrally attached to what cast-in-place core concrete (3) and bridge pier open tubular column (13) were formed.
2. a kind of prefabrication and assembly construction folded type reinforced concrete bridge pier structure according to claim 1, it is characterised in that described
Prefabricated reinforced concrete bridge pier piece (1) by 100~180MPa of compression strength ultra-high performance concrete preparatory pouring molding
Concrete thin-wall sheet material, thickness≤50cm, cross-sectional shape are any.
3. a kind of prefabrication and assembly construction folded type reinforced concrete bridge pier structure according to claim 1, it is characterised in that described
Bridge pier open tubular column (13) by multi-disc prefabricated reinforced concrete bridge pier piece (1) along pier section surrounding outer rim circumferential direction connection and
At polygon hollow column, circular hollow column or special-shaped open tubular column.
4. a kind of prefabrication and assembly construction folded type reinforced concrete bridge pier structure according to claim 1, it is characterised in that described
Contiguous prefabricated reinforced concrete bridge pier piece (1) pre-buried dowel (11) using welding, binding, sleeve or pin insert connection, after
The intensity for pouring overlapping area's concrete (12) should be greater than the intensity of cast-in-place core concrete (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811194894.7A CN109024251A (en) | 2018-10-10 | 2018-10-10 | A kind of prefabrication and assembly construction folded type reinforced concrete bridge pier structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811194894.7A CN109024251A (en) | 2018-10-10 | 2018-10-10 | A kind of prefabrication and assembly construction folded type reinforced concrete bridge pier structure |
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| Publication Number | Publication Date |
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| CN109024251A true CN109024251A (en) | 2018-12-18 |
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| CN201811194894.7A Pending CN109024251A (en) | 2018-10-10 | 2018-10-10 | A kind of prefabrication and assembly construction folded type reinforced concrete bridge pier structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112411362A (en) * | 2020-09-24 | 2021-02-26 | 中铁工程设计咨询集团有限公司 | Bridge pier, construction method thereof and bridge |
| CN113215966A (en) * | 2021-05-12 | 2021-08-06 | 上海市城市建设设计研究总院（集团）有限公司 | Slice type precast concrete bridge pier |
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| CN112411362A (en) * | 2020-09-24 | 2021-02-26 | 中铁工程设计咨询集团有限公司 | Bridge pier, construction method thereof and bridge |
| CN113215966A (en) * | 2021-05-12 | 2021-08-06 | 上海市城市建设设计研究总院（集团）有限公司 | Slice type precast concrete bridge pier |
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