CN108425317A - Precast segment assembly bridge pier and its construction method - Google Patents
Precast segment assembly bridge pier and its construction method Download PDFInfo
- Publication number
- CN108425317A CN108425317A CN201810419403.8A CN201810419403A CN108425317A CN 108425317 A CN108425317 A CN 108425317A CN 201810419403 A CN201810419403 A CN 201810419403A CN 108425317 A CN108425317 A CN 108425317A
- Authority
- CN
- China
- Prior art keywords
- bridge pier
- precast
- assembly bridge
- wet
- segment assembly
- 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
- 238000010276 construction Methods 0.000 title claims abstract description 57
- 238000004826 seaming Methods 0.000 claims abstract description 52
- 238000007711 solidification Methods 0.000 claims abstract description 6
- 230000008023 solidification Effects 0.000 claims abstract description 6
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 40
- 238000003466 welding Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 8
- 238000009415 formwork Methods 0.000 claims description 7
- 238000007569 slipcasting Methods 0.000 claims description 7
- 229910003460 diamond Inorganic materials 0.000 claims description 5
- 239000010432 diamond Substances 0.000 claims description 5
- 238000011065 in-situ storage Methods 0.000 claims description 5
- 230000002787 reinforcement Effects 0.000 claims description 5
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- 230000015271 coagulation Effects 0.000 claims description 2
- 238000005345 coagulation Methods 0.000 claims description 2
- 239000002689 soil Substances 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 9
- 238000007596 consolidation process Methods 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 230000001681 protective effect Effects 0.000 abstract description 3
- 230000000712 assembly Effects 0.000 abstract description 2
- 238000000429 assembly Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 7
- 210000003205 muscle Anatomy 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 238000004026 adhesive bonding Methods 0.000 description 3
- 238000009440 infrastructure construction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 238000009417 prefabrication Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- MFYFNUKUXIRYFV-JSGCOSHPSA-N Polygonone Natural products O=CC=1C(=O)C[C@H]2C(C)(C)CCC[C@@]2(C)C=1 MFYFNUKUXIRYFV-JSGCOSHPSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 125000002837 carbocyclic group Chemical group 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
A kind of precast segment assembly bridge pier of present invention offer and its construction method, several standard segments are divided by bent cap and bridge pier；Seam connection between standard segment is attached fixation comprising stem grafting seam operating surface and wet seaming operation face two parts；Each standard segment, which is prefabricated in the factory, processes on-site consolidation again.Wet joint concrete solidification after with stem grafting seam operating surface together with bearing load, improve the globality of bridge pier；The assembling construction that next segment can be carried out immediately after the solidification of wet joint concrete, saves the maintenance duration of wet joint concrete.The precast segment assembly bridge pier not only have the advantages that construction quality is high, on-site personnel is few, mechanization degree is high, low energy consumption, the precast assemblies structure such as environmentally protective it is all, but also it is easy for construction quickly and wet seam good integrity, the advantages that shear resistance is strong to have had both stem grafting seam operating surface.Another aspect of the present invention additionally provides the construction method of the precast segment assembly bridge pier.
Description
Technical field
The present invention relates to technical field of bridge construction, and in particular to a kind of precast segment assembly bridge pier and its construction method.
Background technology
Currently, the bridge pier of China's urban viaduct, bridge on highway and railroad bridge, which is built, mainly uses cast in situs
Construction method, long construction period, environmental pollution and destroy it is more serious, it is difficult to ensure outstanding construction quality.Industry constantly rises
Grade, infrastructure construction have great demand to green construction technology.Precast segment assembling construction technology fast, matter with speed of application
Measure that guaranteed, on-site personnel is few, attractive appearance, the road occupying time is short, mechanization degree is high, low energy consumption, environmentally protective etc. excellent
Point will be developing progressively as the main flow direction of the following infrastructure construction technology.
Existing column precast assembly technology splices the integral prefabricated reproduction field of bridge pier/column, and lifting weight is big, and lifting is high
It spends more demanding.It is only applicable to a lower height of bridge pier and column；Bridge pier is assembled using stem grafting seam assembling method, globality is not
Foot, it is longer using the assembling technique construction period of wet seam.
Invention content
The purpose of the present invention is to provide a kind of precast segment assembly bridge pier and its construction method, which solves existing
The precast assembly Bridge Pier Construction period is long, globality is inadequate, is only applicable to the technical issues of short bridge pier.
The present invention provides a kind of precast segment assembly bridge pier, including：The prefabricated standard segment of bridge pier and presstressed reinforcing steel, the bridge
Two opposite faces of the prefabricated standard segment of pier are mounting surface, and multiple stem graftings seam operating surfaces and multiple wet are respectively provided on each mounting surface
Seaming operation face；The stem grafting seam operating surface is set on the opposite apex angle of the mounting surface and on every region；It is described wet to connect
Seam operating surface is set between the stem grafting seam operating surface；The stem grafting seam operating surface includes the vertical prefabricated standard knot of bridge pier
The presstressed reinforcing steel duct and anchorage zone, the both ends of the presstressed reinforcing steel that section extends into the prefabricated standard segment of the bridge pier are inserted respectively
Enter in the prefabricated standard segment of the adjacent bridge pier and stretch-draw anchor；On the wet seaming operation face be arranged embedded bar and/or
WELDING STUDS, the embedded bar between the adjacent prefabricated standard segment of bridge pier are connected with the WELDING STUDS casting concrete.
Further, precast segment assembly bridge pier further include cast in situs formed cushion cap, the prefabricated standard segment of bridge pier according to
Sequence is stacked and placed in the construction surface of cushion cap.
Further, precast segment assembly bridge pier further includes the prefabricated standard segment of bent cap, the bottom of the prefabricated standard segment of bent cap
Mounting surface is set on face, multiple stem grafting seam operating surfaces and multiple wet seaming operation faces are respectively provided on mounting surface；The prefabricated standard of bent cap
Segment is covered on by presstressed reinforcing steel on precast segment assembly bridge pier, and is stitched and wet connect by stem grafting with precast segment assembly bridge pier
Seam connection.
Further, presstressed reinforcing steel is regular reinforcement, deformed bar, prestress wire, marmem or carbon
Any or arbitrarily a variety of combination in fiber.
Further, the shape in wet seaming operation face is one kind in rectangle, diamond shape or polygon or any number of group
It closes.
Further, presstressed reinforcing steel length is more than 1 meter.
The construction method that it is yet another aspect of the present invention to provide a kind of such as above-mentioned precast segment assembly bridge pier, including it is following
Step：
Step S100：It is cast-in-place at the construction field (site) to build cushion cap, after the concrete of cushion cap reaches load age, on the top of cushion cap
Stem grafting is set on face and stitches operating surface and wet seaming operation face, Section 1 section precast assembly bridge pier is positioned on the top surface of cushion cap；
Step S200：Tensioning stem grafting stitches the presstressed reinforcing steel of operating surface, in the presstressed reinforcing steel duct on stem grafting seam operating surface
Slip casting and sealing off and covering anchorage, then formwork pour the concrete in wet seaming operation face, wait for the concrete setting in wet seaming operation face；
Step S300：I+1 precast segment assembly bridge pier is positioned on the top surface of the i-th precast segment assembly bridge pier, and
Step S200 is repeated, until precast segment assembly bridge pier is completed, i=1~N, N are the integer less than 10；
Step S400：The prefabricated standard segment of bent cap is positioned on the top surface of N precast segment assembly bridge piers, and repeats step
S200 completes assembling.
The construction method that it is yet another aspect of the present invention to provide a kind of such as above-mentioned precast segment assembly bridge pier, including it is following
Step：
Step S100：It is cast-in-place at the construction field (site) to build cushion cap, after the concrete of cushion cap reaches load age, on the top of cushion cap
Stem grafting is set on face and stitches operating surface and wet seaming operation face, Section 1 section precast assembly bridge pier is positioned on the top surface of cushion cap；
Step S200：Tensioning stem grafting stitches the presstressed reinforcing steel of operating surface, in the presstressed reinforcing steel duct on stem grafting seam operating surface
Slip casting and sealing off and covering anchorage；
Step S300：I+1 precast segment assembly bridge pier is positioned on the top surface of the i-th precast segment assembly bridge pier, and
Step S200 is repeated, until precast segment assembly bridge pier is completed, i=1~N, N are the integer less than 10；
Step S400：The prefabricated standard segment of bent cap is positioned on the top surface of N precast segment assembly bridge piers, and repeats step
S200, then formwork pours between each precast segment assembly bridge pier, between cushion cap and the i-th precast segment assembly bridge pier and the segments N are pre-
The concrete in the wet seaming operation face between the assembled bridge pier of system and the prefabricated standard segment of bent cap, waits for the concrete in wet seaming operation face
Assembling is completed in solidification.
The technique effect of the present invention：
Precast segment assembly bridge pier provided by the invention, can be applied to urban viaduct, bridge on highway and railway
Bridge construction field can improve the prefabricated rate of bridge pier, improve construction quality, enhance the globality of precast segment assembly bridge pier
With the saving construction period.
Precast segment assembly bridge pier provided by the invention, each standard segment, which is prefabricated in the factory, processes on-site consolidation again；Scene
It is fixed first with stem grafting seam operating surface when assembled and increases standard segment newly and transmit the dead load for increasing standard segment newly, then wet connect of constructing
Stitch operating surface, wet seaming operation surface concrete solidification after with stem grafting seam operating surface together with bearing load, improve the whole of bridge pier
Body；The assembling construction that next segment can be carried out immediately after the concrete setting of wet seam crossing, saves wet seam coagulation
The maintenance duration of soil.The precast segment assembly bridge pier is not only with construction quality is high, on-site personnel is few, mechanization degree
It is high, low energy consumption, all advantages of the precast assemblies structure such as environmentally protective, and it is easy for construction quickly to have had both stem grafting seam operating surface
With wet seam good integrity, shear resistance is strong the advantages that, not only can guarantee the construction quality and globality but also can rapid construction of bridge pier
Duration and cost are saved, can be applicable in urban elevated bridge, bridge on highway and railroad bridge construction, economic benefit
Significantly, social benefit is good.
Precast segment assembly pier construction method provided by the present invention can effectively improve pre- during Bridge Pier Construction
System assembly rate and mechanical rate, less construction period improve construction efficiency, can ensure the properties for installing rear abutment.
The described below of the various embodiments that precast segment assembly bridge pier according to the present invention proposes specifically is please referred to, will be made
It is apparent to obtain above and other aspect of the invention.
Description of the drawings
Fig. 1 is the mounting surface schematic top plan view of the precast segment assembly bridge pier of the preferred embodiment of the present invention；
Fig. 2 is the main view diagrammatic cross-section of the precast segment assembly bridge pier of the preferred embodiment of the present invention；
Fig. 3 is the side elevational cross-section schematic diagram of the precast segment assembly bridge pier of the preferred embodiment of the present invention.
Marginal data：
1, the prefabricated standard segment of bent cap；2, the prefabricated standard segment of bridge pier；3, stem grafting stitches operating surface；4, wet seaming operation face；
5, presstressed reinforcing steel；6, cushion cap；7, presstressed reinforcing steel duct.
Specific implementation mode
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
Example and its explanation are applied for explaining the present invention, is not constituted improper limitations of the present invention.
Referring to Fig. 1~2, precast segment assembly bridge pier provided by the invention, including：The prefabricated standard segment 2 of bridge pier and at least
Two opposite faces of a piece presstressed reinforcing steel 5, the prefabricated standard segment of bridge pier 2 are mounting surface, and multiple stem graftings seams are respectively provided on each mounting surface
Operating surface 3 and multiple wet seaming operation faces 4.Stem grafting seam operating surface 3 is set on the opposite apex angle of mounting surface and per side middle area
On domain.Wet seaming operation face 4 is set between stem grafting seam operating surface 3.Stem grafting stitches the prefabricated standard segment of vertical abutment on operating surface 3
2 setting presstressed reinforcing steel ducts 7 and anchorage zone, the both ends of presstressed reinforcing steel 5 are inserted into the prefabricated standard segment of adjacent bridge pier 2 simultaneously respectively
Stretch-draw anchor.It is fixedly connected between adjacent stem grafting seam operating surface 3.Embedded bar and/or shearing are set on wet seaming operation face 4
Nail, the embedded bar between the prefabricated standard segment of adjacent bridge pier 2 are connected with WELDING STUDS casting concrete.
Stem grafting seam operating surface 3 includes pre- answering of extending into the prefabricated standard segment of bridge pier 2 of the prefabricated standard segment 2 of vertical abutment
The presstressed reinforcing steel hole of the prefabricated standard segment of adjacent bridge pier 2 is inserted at power muscle duct 7 and anchorage zone, the both ends of presstressed reinforcing steel 5 respectively
In road 7 and stretch-draw anchor.
Bridge pier is divided into several standard segments；Using stem grafting seam and the combination connection of wet seam between standard segment；It is dry
Seam is connected by presstressed reinforcing steel 5, and wet seam needs embedded bar and WELDING STUDS；Each standard segment is prefabricated in the factory processing, pre-buried
The presstressed reinforcing steel 5 and anchorage of stem grafting seam, and reserved stretch-draw anchor space, while the reinforcing bar and WELDING STUDS of pre-buried wet seam, and it is pre-
Stay wet joint space.Referring to Fig. 3, stem grafting seam of constructing first during assembled stitches fixed newly-increased standard segment using stem grafting and passes
Pass the load of newly-increased standard segment；It constructs again wet seam, the globality of bridge pier is further increased after wet joint concrete solidification, and
Newly increased load is born together with stem grafting seam；Assembled process can every seam all successively construction stem grafting seam and wet seam, can also be used
Stem grafting seam complete it is all assembled after the wet seam of unified construction again.The precast segment assembly bridge pier is particularly suitable for bridge construction,
Such as urban viaduct, bridge on highway and high-speed rail bridge.It can also be selected according to the cross sectional shape of prefabricated standard segment
It selects.
Preferably, further include cushion cap 6 that cast in situs is formed, the prefabricated standard segment of bridge pier 2 is sequentially stacked and placed on applying for cushion cap 6
On work face.Preferably, further include the prefabricated standard segment 1 of bent cap, mounting surface is set on the bottom surface of the prefabricated standard segment of bent cap 1, respectively
Multiple stem grafting seam operating surfaces 3 and multiple wet seaming operation faces 4 are respectively provided on mounting surface.
Site operation pours cushion cap 6 first, then assembled standard segment, last assembly standard cap are beam prefabricated successively from the bottom to top
Standard segment 1.
Preferably, two opposite coupling areas can be set as plane, rough surface passes through one kind or combination phase in key teeth or gluing
Connection.Preferably, presstressed reinforcing steel 5 is regular reinforcement, deformed bar, prestress wire, marmem or carbon fiber
In any or arbitrary a variety of combination.
Preferably, the shape in wet seaming operation face 4 is one kind in rectangle, diamond shape or polygon or any number of group
It closes.
Preferably, 5 length of presstressed reinforcing steel is more than 1 meter.Presstressed reinforcing steel 5 used is without penetrating through precast segment assembly bridge pier
Assembling is completed, packaging efficiency is higher, reduces difficulty of processing, while also can guarantee installation strength requirement.
In it is preferred that, the stem grafting seam and wet seam sections construction size are designed according to actual conditions, can local strengthening.
In one embodiment, referring to Fig. 1~3, the prefabricated standard segment of precast segment assembly bridge pier, cushion cap 6, bridge pier 2
Rectangular cross-section.Installation is respectively set on two opposite faces of the prefabricated standard segment of precast segment assembly bridge pier, cushion cap 6, bridge pier 2
Face.Mounting surface herein refers to wider weight-bearing surface.Stem grafting is set on mounting surface and stitches operating surface 3 and wet seaming operation face 4.Referring to
Fig. 1, stem grafting seam operating surface 3 is set on 4 apex angles of rectangle, while being set in the relative edge two-by-two of rectangle mounting surface
Portion.Stem grafting seam operating surface 3 includes anchorage zone and the presstressed reinforcing steel duct 7 being set on anchorage zone.Presstressed reinforcing steel duct 7 is vertically pacified
The extension in precast segment assembly bridge pier, cushion cap 6 or the prefabricated standard segment 2 of bridge pier of dress face.The both ends of presstressed reinforcing steel 5 are inserted into respectively
The interior simultaneously stretch-draw anchor of presstressed reinforcing steel duct 7 of two opposite mounting surfaces pours sealing off and covering anchorage.Wet seaming operation face 4 is set to adjacent two-by-two
Stem grafting seam operating surface 3 mounting surface on.Embedded bar on wet seaming operation face 4.Wet seaming operation face 4 facing each other pours
Concrete connects.
Another aspect of the present invention additionally provides a kind of construction method of above-mentioned precast segment assembly bridge pier, including following step
Suddenly：
Step S100：It is cast-in-place at the construction field (site) to build cushion cap 6, after the concrete of cushion cap 6 reaches load age, in cushion cap 6
Top surface on setting stem grafting stitch operating surface 3 and wet seaming operation face 4, Section 1 section precast assembly bridge pier is positioned to the top of cushion cap 6
On face；
Step S200：The presstressed reinforcing steel 5 of tensioning stem grafting seam operating surface 3 simultaneously anchors, the prestressing force on stem grafting seam operating surface 3
Slip casting and sealing off and covering anchorage in muscle duct 7, then formwork pour the concrete in wet seaming operation face 4, wait for that the concrete in wet seaming operation face 4 is solidifying
Gu；
Step S300：I+1 precast segment assembly bridge pier is positioned on the top surface of the i-th precast segment assembly bridge pier, and
Step S200 is repeated, until precast segment assembly bridge pier is completed, i=1~N, N are the integer less than 10；
Step S400：The prefabricated standard segment of bent cap 1 is positioned on the top surface of N precast segment assembly bridge piers, and repeats to walk
Rapid S200 completes assembling.
Using the construction method, packaging efficiency can be improved, reduces the lifting amount of lifting bridge pier every time.And hoisting height also drops
The low height for precast segment assembly bridge pier.In assembling process, it can effectively reduce and wait for drying time, improve construction efficiency.
Another aspect of the present invention additionally provides a kind of construction method of above-mentioned precast segment assembly bridge pier, including following step
Suddenly：
Step S100：It is cast-in-place at the construction field (site) to build cushion cap 6, after the concrete of cushion cap 6 reaches load age, in cushion cap 6
Top surface on setting stem grafting stitch operating surface 3 and wet seaming operation face 4, Section 1 section precast assembly bridge pier is positioned to the top of cushion cap 6
On face；
Step S200：The presstressed reinforcing steel 5 of tensioning stem grafting seam operating surface 3 simultaneously anchors, the prestressing force on stem grafting seam operating surface 3
Slip casting and sealing off and covering anchorage in muscle duct 7；
Step S300：I+1 precast segment assembly bridge pier is positioned on the top surface of the i-th precast segment assembly bridge pier, and
Step S200 is repeated, until precast segment assembly bridge pier is completed, i=1~N, N are the integer less than 10；
Step S400：The prefabricated standard segment of bent cap 1 is positioned on the top surface of N precast segment assembly bridge piers, and repeats to walk
Rapid S200, then formwork pours between each precast segment assembly bridge pier, is saved with N between cushion cap 6 and the i-th precast segment assembly bridge pier
The concrete in the wet seaming operation face 4 between section precast assembly bridge pier and the prefabricated standard segment of bent cap 1, waits for wet seaming operation face 4
Concrete setting, complete assembling.
Precast segment assembly bridge pier provided by the invention is described in detail below in conjunction with specific embodiment：
Stem grafting seam operating surface 3, wet seaming operation face 4 be used in combination precast segment assembly bridge pier Fast Construction technology be by
Bent cap 1 and bridge pier 2 are divided into several standard segments；Seam connection between standard segment includes stem grafting seam operating surface 3 and wet
4 two parts of seaming operation face, it is characterised in that standard segment 1/2, which is prefabricated in the factory, processes on-site consolidation again；On-site consolidation is first
Stem grafting of constructing stitches operating surface 3, is fixed using stem grafting seam operating surface 3 and increases standard segment 2 newly, transmits the load for increasing standard segment 2 newly；
It constructs again wet seaming operation face 4, assembled new standard segment 2, nothing can be started after the concrete setting in wet seaming operation face 4
Need to wait for the curing time in wet seaming operation face 4；The concrete setting in wet seaming operation face 4 further increases the entirety of bridge pier
Property, and stitch the bearing load together of operating surface 3 with stem grafting；On-site consolidation can also first use stem grafting seam operating surface 3 assembled all
Standard segment 2, then the wet seaming operation face 4 of unified construction carry out globality reinforcement.Bridge pier be cross-section or variable cross-section one kind or
Combination；Shape is rectangle, square, polygon, circle, one kind in ellipse or combination；Bridge pier form is hollow pier, solid
One kind of pier or combination.Stem grafting stitches the position of operating surface 3 in the both ends of each edge or the centre of each edge；Stem grafting stitches operating surface 3
Contact surface be plane, rough surface, key teeth, one kind in gluing or combination.Stem grafting seam operating surface 35 quantity of presstressed reinforcing steel be
One or more.The presstressed reinforcing steel 5 of stem grafting seam operating surface 3 is regular reinforcement, deformed bar, prestress wire, shape note
Recall one kind in alloy and carbon fiber or combination.The cross sectional shape in wet seaming operation face 4 is in rectangle, diamond shape, polygon
A kind of or combination.The side view in wet seaming operation face 4 is rectangle, diamond shape, trapezoidal, in polygon one kind or combination.It is wet
WELDING STUDS or embedded bar is arranged in seaming operation face 4.The presstressed reinforcing steel of pre-buried stem grafting seam operating surface 3 in the prefabrication process of standard segment
5 and anchorage 5, tensioning space is reserved, the reinforcing bar or WELDING STUDS of pre-buried wet seam 4 reserve wet joint spaces.
By taking the hollow rectangle bridge pier that the high 20m of pier, vertical bridge broaden to wide, direction across bridge as an example, bridge pier is divided into standard bent cap 1
With 6 standard segments 2, there are 6 seams；Stem grafting seam operating surface 3 in every seam is located at the both ends and centre of long side, stem grafting
Seam 3 area 3 of operating surface is related with segment dead weight, and the construction that stem grafting stitches operating surface 3 carries out local strengthening, stem grafting according to actual conditions
It stitches operating surface 3 to connect using deformed bar, deformed bar length is more than 1 meter, and stem grafting stitches 3 contact surface of operating surface and smears gluing
Agent；Wet seaming operation face 4 is other all seam regions for removing stem grafting seam operating surface 3, and embedded bar is arranged in wet joint 4.
The construction method of the present embodiment is：The standard that is prefabricated in the factory segment 1 and 2 reserves stem grafting and stitches 3 prestress steel of operating surface
Muscle pipeline 7, pre-buried wet 4 reinforcing bar of seaming operation face；Cast in situs cushion cap 6 and bottom bridge pier 6, wait for concrete reach load age with
After carry out section assembling；Section assembling construction to standard segment 2 position first and stretch-draw anchor stem grafting stitches the pre- of operating surface 3
Stress reinforcing bar 5, to the slip casting of deformed bar pipeline and sealing off and covering anchorage；Formwork pours wet 4 concrete of seaming operation face again, is grasped in wet seam
Make to start assembled next standard segment 1 or 2 after 4 concrete setting of face.
The present invention has following technical characterstic：Based on prefabrication, construction quality is easy to control and low bridge pier structure
Carbocyclic ring is protected；On-site consolidation combines stem grafting seam operating surface 3 and 4 two kinds of wet seaming operation face construction technology, has both dry seaming operation
3 speed of application of face with the two-fold advantage of wet 4 good integrity of seaming operation face, has significant economic benefit and social benefit soon.
Those skilled in the art will be clear that the scope of the present invention is not limited to example discussed above, it is possible to be carried out to it
Several changes and modification, the scope of the present invention limited without departing from the appended claims.Although oneself is through in attached drawing and explanation
The present invention is illustrated and described in book in detail, but such illustrate and describe only is explanation or schematical, and not restrictive.
The present invention is not limited to the disclosed embodiments.
By to attached drawing, the research of specification and claims, those skilled in the art can be in carrying out the present invention
Understand and realize the deformation of the disclosed embodiments.In detail in the claims, term " comprising " is not excluded for other steps or element,
And indefinite article "one" or "an" be not excluded for it is multiple.The certain measures quoted in mutually different dependent claims
The fact does not mean that the combination of these measures cannot be advantageously used.Any reference marker in claims is not constituted pair
The limitation of the scope of the present invention.
Claims (8)
1. a kind of precast segment assembly bridge pier, which is characterized in that including：The prefabricated standard segment of bridge pier and presstressed reinforcing steel, the bridge
Two opposite faces of the prefabricated standard segment of pier are mounting surface, and multiple stem graftings seam operating surfaces and multiple wet are respectively provided on each mounting surface
Seaming operation face；
The stem grafting seam operating surface is set on the opposite apex angle and every side intermediate region of the mounting surface；
The wet seaming operation face is set between the stem grafting seam operating surface；
The stem grafting seam operating surface includes that the vertical prefabricated standard segment of bridge pier extends into the prefabricated standard segment of the bridge pier
Presstressed reinforcing steel duct and anchorage zone, the both ends of the presstressed reinforcing steel be inserted into respectively in the prefabricated standard segment of the adjacent bridge pier
And it anchors；
Embedded bar and/or WELDING STUDS be set on the wet seaming operation face, between the adjacent prefabricated standard segment of bridge pier
The embedded bar is connected with the WELDING STUDS casting concrete.
2. precast segment assembly bridge pier according to claim 1, which is characterized in that the precast segment assembly bridge pier also wraps
The cushion cap of cast in situs formation is included, the prefabricated standard segment of bridge pier is sequentially stacked and placed in the construction surface of the cushion cap.
3. precast segment assembly bridge pier according to claim 1, which is characterized in that the precast segment assembly bridge pier also wraps
The prefabricated standard segment of bent cap is included, the mounting surface is set on the bottom surface of the prefabricated standard segment of bent cap, on the mounting surface
Multiple stem grafting seam operating surfaces and multiple wet seaming operation faces are set；The prefabricated standard segment of bent cap passes through described pre-
Stress rib is covered on the precast segment assembly bridge pier, and is connected by the wet seam with the precast segment assembly bridge pier
It connects.
4. precast segment assembly bridge pier described in any one of claim 1 to 3, which is characterized in that the presstressed reinforcing steel
For any in regular reinforcement, deformed bar, prestress wire, marmem or carbon fiber or arbitrary a variety of group
It closes.
5. precast segment assembly bridge pier described in any one of claim 1 to 3, which is characterized in that the wet seam behaviour
The shape for making face is one kind or any number of combination in rectangle, diamond shape or polygon.
6. precast segment assembly bridge pier described in any one of claim 1 to 3, which is characterized in that the presstressed reinforcing steel
For segment deformed bar or perforation deformed bar.
7. a kind of construction method of such as precast segment assembly bridge pier according to any one of claims 1 to 6, which is characterized in that
Include the following steps：
Step S100：It is cast-in-place at the construction field (site) to build cushion cap, stem grafting seam operating surface and wet seam are set on the top surface of the cushion cap
Section 1 section precast assembly bridge pier is positioned at the cushion cap by operating surface after the concrete of the cushion cap reaches load age
On top surface；
Step S200：The presstressed reinforcing steel of stem grafting seam operating surface described in tensioning, the presstressed reinforcing steel hole on stem grafting seam operating surface
Slip casting and sealing off and covering anchorage in road, then formwork pour the concrete in the wet seaming operation face, wait for the concrete in the wet seaming operation face
Solidification；
Step S300：I+1 precast segment assembly bridge pier is positioned on the top surface of the i-th precast segment assembly bridge pier, and
Step S200 is repeated, until the precast segment assembly bridge pier is completed, i=1~N, N are the integer less than 10；
Step S400：The prefabricated standard segment of bent cap is positioned on the top surface of the N precast segments assembly bridge pier, and repeats step
S200 completes assembling.
8. a kind of construction method of such as precast segment assembly bridge pier according to any one of claims 1 to 6, which is characterized in that
Include the following steps：
Step S100：It is cast-in-place at the construction field (site) to build cushion cap, stem grafting seam operating surface and wet seam are set on the top surface of the cushion cap
Section 1 section precast assembly bridge pier is positioned at the cushion cap by operating surface after the concrete of the cushion cap reaches load age
On top surface；
Step S200：The presstressed reinforcing steel of stem grafting seam operating surface described in tensioning, the presstressed reinforcing steel hole on stem grafting seam operating surface
Slip casting and sealing off and covering anchorage in road；
Step S300：I+1 precast segment assembly bridge pier is positioned on the top surface of the i-th precast segment assembly bridge pier, and
Step S200 is repeated, until the precast segment assembly bridge pier is completed, i=1~N, N are the integer less than 10；
Step S400：The prefabricated standard segment of bent cap is positioned on the top surface of the N precast segments assembly bridge pier, and repeats step
S200, then formwork pours between each precast segment assembly bridge pier, the cushion cap and the i-th precast segment assembly bridge pier it
Between the wet seaming operation face between the N precast segments assembly bridge pier and the prefabricated standard segment of the bent cap coagulation
Soil waits for the concrete setting in the wet seaming operation face, completes assembling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810419403.8A CN108425317A (en) | 2018-05-04 | 2018-05-04 | Precast segment assembly bridge pier and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810419403.8A CN108425317A (en) | 2018-05-04 | 2018-05-04 | Precast segment assembly bridge pier and its construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108425317A true CN108425317A (en) | 2018-08-21 |
Family
ID=63162403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810419403.8A Pending CN108425317A (en) | 2018-05-04 | 2018-05-04 | Precast segment assembly bridge pier and its construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108425317A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219239A (en) * | 2019-06-20 | 2019-09-10 | 邵长专 | A kind of manufacturing method of sectional type bamboo bridge guardrail, prefabricated bamboo bridge and bamboo bridge |
| CN110284421A (en) * | 2019-07-10 | 2019-09-27 | 上海市浦东新区建设(集团)有限公司 | A kind of column and bent cap splicing structure and its construction method |
| CN112853983A (en) * | 2021-01-11 | 2021-05-28 | 山东高速建设管理集团有限公司 | Manufacturing and on-site assembling process of light segment prefabricated bridge pier |
| 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 |
| CN114808662A (en) * | 2022-03-21 | 2022-07-29 | 上海市城市建设设计研究总院（集团）有限公司 | Nested standardized prefabricated assembled bent cap and construction method thereof |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10325110A (en) * | 1997-05-26 | 1998-12-08 | Yokohama Rubber Co Ltd:The | Combined joint sealing method of civil engineering structure |
| CN101429752A (en) * | 2007-11-05 | 2009-05-13 | 中交一航局第一工程有限公司 | Pier column prefabrication splicing building technology |
| CN102433945A (en) * | 2011-08-30 | 2012-05-02 | 东南大学 | Vertical mixed connection structure and method of prefabricated internal wallboards for assembling shear wall structure |
| CN103753693A (en) * | 2013-10-31 | 2014-04-30 | 中交第一航务工程局有限公司 | Vertical matching manufacturing method for precast concrete members |
| CN203684076U (en) * | 2014-01-26 | 2014-07-02 | 招商局重庆交通科研设计院有限公司 | Bridge pier formed by splicing prefabricated steel fiber self-compacting concrete segments |
| CN204849571U (en) * | 2015-08-12 | 2015-12-09 | 江苏建筑职业技术学院 | Prefabricated assembly pier of posttension prestressing force tongue -and -groove plug -in type |
| CN205205647U (en) * | 2015-12-04 | 2016-05-04 | 郑州大学 | Prefabricated segment formula concrete bridge's bottom plate joint construction |
| CN205421045U (en) * | 2016-03-15 | 2016-08-03 | 广东工业大学 | Local reinforcing structure that mixes of festival segmentation dry joint seam T web |
| CN105970804A (en) * | 2016-07-14 | 2016-09-28 | 东南大学 | Structure and construction method of fan-shaped tenon joints of prefabricated assembly pier |
| CN106087706A (en) * | 2016-07-22 | 2016-11-09 | 中铁第四勘察设计院集团有限公司 | Precast body wet seam attachment structure and wet connecing thereof dry make construction method |
| CN205711743U (en) * | 2016-06-12 | 2016-11-23 | 温州市交通投资集团有限公司 | A kind of steel concrete combined bridge deck of dry and wet seam |
| CN206219968U (en) * | 2016-08-30 | 2017-06-06 | 中铁第四勘察设计院集团有限公司 | Transverse connection structure between rib-lifting section |
| CN107268424A (en) * | 2017-07-06 | 2017-10-20 | 东南大学 | Can fast leveling precast assembly bridge pier structure and its construction method |
| CN208235312U (en) * | 2018-05-04 | 2018-12-14 | 中南大学 | Precast segment assembly bridge pier |
-
2018
- 2018-05-04 CN CN201810419403.8A patent/CN108425317A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10325110A (en) * | 1997-05-26 | 1998-12-08 | Yokohama Rubber Co Ltd:The | Combined joint sealing method of civil engineering structure |
| CN101429752A (en) * | 2007-11-05 | 2009-05-13 | 中交一航局第一工程有限公司 | Pier column prefabrication splicing building technology |
| CN102433945A (en) * | 2011-08-30 | 2012-05-02 | 东南大学 | Vertical mixed connection structure and method of prefabricated internal wallboards for assembling shear wall structure |
| CN103753693A (en) * | 2013-10-31 | 2014-04-30 | 中交第一航务工程局有限公司 | Vertical matching manufacturing method for precast concrete members |
| CN203684076U (en) * | 2014-01-26 | 2014-07-02 | 招商局重庆交通科研设计院有限公司 | Bridge pier formed by splicing prefabricated steel fiber self-compacting concrete segments |
| CN204849571U (en) * | 2015-08-12 | 2015-12-09 | 江苏建筑职业技术学院 | Prefabricated assembly pier of posttension prestressing force tongue -and -groove plug -in type |
| CN205205647U (en) * | 2015-12-04 | 2016-05-04 | 郑州大学 | Prefabricated segment formula concrete bridge's bottom plate joint construction |
| CN205421045U (en) * | 2016-03-15 | 2016-08-03 | 广东工业大学 | Local reinforcing structure that mixes of festival segmentation dry joint seam T web |
| CN205711743U (en) * | 2016-06-12 | 2016-11-23 | 温州市交通投资集团有限公司 | A kind of steel concrete combined bridge deck of dry and wet seam |
| CN105970804A (en) * | 2016-07-14 | 2016-09-28 | 东南大学 | Structure and construction method of fan-shaped tenon joints of prefabricated assembly pier |
| CN106087706A (en) * | 2016-07-22 | 2016-11-09 | 中铁第四勘察设计院集团有限公司 | Precast body wet seam attachment structure and wet connecing thereof dry make construction method |
| CN206219968U (en) * | 2016-08-30 | 2017-06-06 | 中铁第四勘察设计院集团有限公司 | Transverse connection structure between rib-lifting section |
| CN107268424A (en) * | 2017-07-06 | 2017-10-20 | 东南大学 | Can fast leveling precast assembly bridge pier structure and its construction method |
| CN208235312U (en) * | 2018-05-04 | 2018-12-14 | 中南大学 | Precast segment assembly bridge pier |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219239A (en) * | 2019-06-20 | 2019-09-10 | 邵长专 | A kind of manufacturing method of sectional type bamboo bridge guardrail, prefabricated bamboo bridge and bamboo bridge |
| CN110284421A (en) * | 2019-07-10 | 2019-09-27 | 上海市浦东新区建设(集团)有限公司 | A kind of column and bent cap splicing structure and its construction method |
| CN112853983A (en) * | 2021-01-11 | 2021-05-28 | 山东高速建设管理集团有限公司 | Manufacturing and on-site assembling process of light segment prefabricated bridge pier |
| 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 |
| CN114808662A (en) * | 2022-03-21 | 2022-07-29 | 上海市城市建设设计研究总院（集团）有限公司 | Nested standardized prefabricated assembled bent cap and construction method thereof |
| CN114808662B (en) * | 2022-03-21 | 2023-10-03 | 上海市城市建设设计研究总院（集团）有限公司 | Nested standardized prefabricated assembled bent cap and construction method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104929034B (en) | A kind of modularization steel reinforced concrete rapid construction small box girder bridge and its construction method | |
| CN108425317A (en) | Precast segment assembly bridge pier and its construction method | |
| CN208235312U (en) | Precast segment assembly bridge pier | |
| CN104988844B (en) | Two times tensioning prestressing force assembled Wavelike steel webplate combination beam | |
| CN107938504A (en) | A kind of wet seam construction of floorings using T reinforcing bars and its construction method | |
| CN105484142B (en) | A kind of pin-connected panel precast segment concrete hollow slab beam structure and preparation method thereof | |
| CN108316122A (en) | A kind of the bridge floor continuous structure and construction method of freely-supported I-shaped concrete combination beam | |
| CN106013432B (en) | A kind of high ductility prefabricated integral frame interior joint connection structure and construction method | |
| CN108221634A (en) | The Wavelike steel webplate I-shaped composite beam bridge of maximum assembling | |
| CN103374881A (en) | Prefabricated segment assembling pier structure system and construction method thereof | |
| CN106638259B (en) | The superstructure and its assembling and construction method of prefabricated uncovered beam type combined steel plate beam bridge | |
| CN105544385A (en) | Seam structure of prefabricated sectional type concrete bridge | |
| CN108867310A (en) | The short rib T beam bridge of pretensioning prestressed concrete and its construction method | |
| CN103046463B (en) | Assembly type saddle-shell-shaped bottom plate continuous box girder bridge and construction method thereof | |
| CN103938546A (en) | Simple-supported continuous construction method and structure thereof | |
| CN109680604B (en) | Prefabricated T-beam telescopic seam end structure and construction method | |
| CN106638274A (en) | Unidirectional prestressed ultrahigh-performance concrete thin-walled box girder standard segment | |
| CN109356016A (en) | A kind of light section-ultra-high performance concrete stiffness bracket floor and construction method | |
| CN108951399A (en) | A kind of Single-box multi-chamber box beam bridge and its construction method | |
| CN206090275U (en) | Assembled rectangular concrete -filled steel tube makes up truss bridge | |
| CN110725195A (en) | Connecting method for assembly type pier and bearing platform anchoring steel bar sleeve-insertion post-cast RPC and application thereof | |
| CN210395128U (en) | Hollow core plate beam connection structure in bridge widening | |
| CN207714129U (en) | A kind of wet seam construction of floorings using T reinforcing bars | |
| CN107905084B (en) | RPC steel truss combined bridge deck and continuous beam bridge | |
| CN108316164A (en) | It is a kind of to reinforce old assembled Hollow Slab Beam Bridge construction and construction method using new beam |
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 |