CN106869014A - A kind of knob Precast Concrete Segmental Bridges bridge pier attachment means - Google Patents
A kind of knob Precast Concrete Segmental Bridges bridge pier attachment means Download PDFInfo
- Publication number
- CN106869014A CN106869014A CN201710085571.3A CN201710085571A CN106869014A CN 106869014 A CN106869014 A CN 106869014A CN 201710085571 A CN201710085571 A CN 201710085571A CN 106869014 A CN106869014 A CN 106869014A
- Authority
- CN
- China
- Prior art keywords
- knob
- pontes
- prefabricated subsection
- connecting portion
- bridge pier
- 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.)
- Granted
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/268—Composite concrete-metal
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
Abstract
The present invention discloses a kind of knob Precast Concrete Segmental Bridges bridge pier attachment means, includes from bottom to top：Lower prefabricated subsection, the first pontes, knob portion, second connecting portion are divided, upper prefabricated subsection, the first pontes connects lower prefabricated subsection and knob portion respectively, second connecting portion point connects knob portion and upper prefabricated subsection respectively, and the first pontes and second connecting portion point connect knob portion respectively using turned upside down mode.Using technical scheme, the present invention has the quick bridge construction for building demand suitable for various.
Description
Technical field
The invention belongs to science of bridge building, more particularly to a kind of knob Precast Concrete Segmental Bridges bridge pier attachment means.
Technical background
With the propulsion that urban transportation and bridge spanning the sea are built, the demand to bridge Fast Construction in limited space progressively increases
Plus.And traditional cast-in-place concrete bridge method of construction inevitably need wait concrete coagulation cause the duration more long, and
And the endurance quality that cast-in-place concrete quality is influenceed to be difficult to ensure that under rugged environment by site environment.Precast assembly technology is
Solve the feasible means of this contradiction.The prefabricating technique of current bridge superstructure has tended to ripe, and bridge substructure
The precast assembly technology application of particularly pier stud is less.There are Donghai Bridge, Hangzhou using the case history of the technology at home
Gulf bridge etc., is all located at low crack area domain.Because the anti-seismic performance of sections attachment means is still not clear, the technology is limited in height
The application of intensity area.
Splice the anti-seismic performance of bridge pier based on sections, domestic and foreign scholars have carried out substantial amounts of research.Research has shown that reasonably
Design sections connection can make section assembling bridge pier obtain conventional bridge pier without shock-resistance features, wherein the important point is exactly sections
Assembled bridge pier has self certain reset capability.In Japanese Osaka-Kobe earthquake, the Reinforced Concrete Bridge for having about 1/5 damages journey
Degree not yet reaches the degree of reconstruction, but cannot be continuing with because residual displacement is excessive.After Osaka-Kobe earthquake, Japan is to bridge
Aseismic Design has done strict regulation：And require the maximum displacement under residual displacement and earthquake load together as checking computations to add
To among specification.It is particularly valuable as self reset capability today of trend in performance-based seismic design.
Existing precast pier attachment means are substantially all using the unbonded prestressing tendon of each sections of insertion pier stud total length
Ensure load-carrying properties of the splicing seams under the horizontal applied forces such as earthquake.And the technology causes that bridge pier will bear extra prestressing force lotus
Carry.In order to the concrete for ensureing sections junction when geological process is resisted is unlikely to that by severe crush steel pipe or FRP must be used
Material is reinforced to sections or is used high grade special concrete, causes cost higher.And only unbonded prestressing tendon
Sections connection energy-dissipating property it is poor, in order to ensure connection energy-dissipating property generally need to ensure a number of power consumption reinforcing bar
Through splicing seams, construction is caused more to bother.So the present invention will be related to a kind of attachment means for not using presstressed reinforcing steel.
The content of the invention
The invention is intended to provide a kind of simple structure, knob Precast Concrete Segmental Bridges bridge pier attachment means easy for installation.
To achieve the above object, the present invention is adopted the following technical scheme that：
A kind of knob Precast Concrete Segmental Bridges bridge pier attachment means, include from bottom to top：Lower prefabricated subsection, first connecting portion
Divide, knob portion, second connecting portion are divided, upper prefabricated subsection, the first pontes connects lower prefabricated subsection and knob respectively
Part, second connecting portion point connects knob portion and upper prefabricated subsection, the first pontes and second connecting portion point respectively
Knob portion is connected using turned upside down mode respectively, wherein,
The first pontes includes：First annulus main body, is provided with plectane, in institute on the inwall of the first annulus main body
State plectane and be provided with 8 connectors of equidistantly distributed, the connector is " L " shape, and it includes horizontal part and vertical component effect, described
Vertical component effect is vertically located on the plectane, and the structure of the second connecting portion point is identical with the first pontes；
The knob portion includes：Second annulus main body, is provided with 8 equidistantly distributeds on the inwall of the second annulus main body
Knob part, the knob part is a groove, relative in each horizontal part and second connecting portion point in the first pontes
Horizontal part is answered to be buckled between the corresponding tooth of groove two in knob portion using turned upside down mode.
Preferably, the lower prefabricated subsection is concrete filled steel tube, the upper prefabricated subsection is armored concrete, described the
One coupling part, second connecting portion point and knob portion are made of Steel material.
The present invention has the following advantages：First, the presstressed reinforcing steel in tradition connection is eliminated, bridge pier no longer bears top simultaneously
Structure gravity and vertical prestressing, the pier section of non-attached area are designed simple and convenient without particular design；Revolved between sections
Rotating button part can be completed using light instrument, and in-site installation is convenient.Secondly, each sections is prefabricated, can use multi-segmental
Repeatedly it is assembled into the bridge pier of various height, practicality and strong applicability.Finally, there is connector and knob during rarely occurred earthquake
Small slip occurs between part can be consumed energy, and the not enough defect of precast assembly bridge pier power consumption is compensate for a certain extent.And
Can be resetted by turn knob part after unloading.
Brief description of the drawings
Fig. 1 knob Precast Concrete Segmental Bridges bridge pier attachment means schematic diagrames；
Fig. 2 coupling parts schematic diagram；
Fig. 3 knob portion schematic diagrames；
Fig. 4 knob Precast Concrete Segmental Bridges bridge pier example schematics.
Specific embodiment
As shown in Figure 1, 2, 3, the embodiment of the present invention provides a kind of knob Precast Concrete Segmental Bridges bridge pier attachment means, under
And on include：Lower prefabricated subsection 1, the first pontes 21, knob portion 3, second connecting portion divide 22, upper prefabricated subsection 4, described
Lower prefabricated subsection 1 is concrete filled steel tube, and the upper prefabricated subsection 4 is armored concrete, and the first pontes 21, second connects
Socket part point 22 and knob portion 3 are made of Steel material, and the first pontes 21 connects lower prefabricated subsection 1 and knob respectively
Part 3, second connecting portion point 22 connects knob portion 3 and upper prefabricated subsection 4 respectively, and the first pontes 21 and second connects
Socket part point 22 connects knob portion 3 respectively using turned upside down mode.
The first pontes 21 includes：First annulus main body 51, circle is provided with the inwall of the first annulus main body 51
Plate 6, is provided with 8 connectors of equidistantly distributed 7 on the plectane 6, and the connector 7 is " L " shape, it include horizontal part and
Vertical component effect, the vertical component effect is vertically located on the plectane 6, the structure and the first connecting portion of the second connecting portion point 22
Points 21 identical.
The knob portion 3 includes：Second annulus main body 52, between 8 grades are provided with the inwall of the second annulus main body 52
Away from the knob part 8 of distribution, the knob part 8 is a groove, each horizontal part and the second connection in the first pontes 21
Corresponding horizontal part is buckled between the corresponding tooth of groove two in knob portion 3 using turned upside down mode in part 22.
Embodiment 1
As shown in figure 4, embodiment 1 is the precast pier of the secondary splicing of three sections, include from bottom to top：First segment,
Two sections and the 3rd sections, wherein,
First segment includes from bottom to top：Basis 60, first time prefabricated subsection 10, the first pontes 21, knob portion
3rd, prefabricated subsection 41 in second connecting portion point 22, first；The lower prefabricated subsection 10, the first pontes 21, knob portion 3,
The composition of prefabricated subsection 41 knob Precast Concrete Segmental Bridges bridge pier attachment means in second connecting portion point 22, first, in described first
Prefabricated subsection 41 is the upper prefabricated subsection in knob Precast Concrete Segmental Bridges bridge pier attachment means, and first time prefabricated subsection 10 be
Concrete filled steel tube, prefabricated subsection 41 is armored concrete in described first.
Second section includes from bottom to top：Prefabricated subsection 41, the first pontes 21, knob portion 3, second connect in first
Prefabricated subsection 42 in socket part point 22, second；Prefabricated subsection, the first pontes 21, knob portion 3, second connecting portion in first
Divide prefabricated subsection composition knob Precast Concrete Segmental Bridges bridge pier attachment means, the He of prefabricated subsection 41 in described first in 22, second
Prefabricated subsection 42 is respectively lower prefabricated subsection and upper prefabricated subsection in knob Precast Concrete Segmental Bridges bridge pier attachment means in second,
And prefabricated subsection 42 is armored concrete in described second.
3rd sections includes from bottom to top：Prefabricated subsection 42, the first pontes 21, knob portion 3, second connect in second
Socket part point 22, upper prefabricated subsection 40, pier cap 50；Prefabricated subsection 42, the first pontes 21, knob portion 3, second connect in second
The composition of prefabricated subsection 40 knob Precast Concrete Segmental Bridges bridge pier attachment means, prefabricated section in described second in socket part point 22, first
Section 42 is lower prefabricated subsection in knob Precast Concrete Segmental Bridges bridge pier attachment means, and prefabricated subsection 40 is steel pipe on described first
Concrete.
When prefabricated, the steel pipe of first time prefabricated subsection 10 is stretched into basic 60 in first segment, and lays steel plate in bottom
70, then pour basis 60 concrete, first in first segment in prefabricated subsection 41 steel pipe top and the first pontes 21
Bottom welding；Similarly, first in the 3rd sections on the steel pipe of prefabricated subsection 40 stretch into pier cap 50, and in bottom lay steel
Plate 70, then pour the concrete of pier cap 50, second in the 3rd sections in prefabricated subsection 42 steel pipe top and the first pontes
21 bottom welding.
During construction, comprise the following steps：
Step 1, lifting first segment
Prefabricated subsection, basis first in first time prefabricated subsection, first and second coupling part, first of lifting first segment
And steel plate, then knob portion is lifted, make that each knob part is just stuck in the first pontes or second connecting portion is divided to two connections
In space between part, and require to be vertically connected with part alignment；
Step 2, lifting second section
Then prefabricated subsection and first and second coupling part in the second of second section are lifted so that the knob of knob portion
Part falls in second connecting portion is divided to two connector spaces, and carries out sag correction, then by turn knob part, makes every up and down
Connector is buckled in completely between the tooth of knob part two, then it is mixed toward pouring in the gap of first and second coupling part and knob portion
Solidifying soil, is filled to bridge pier external diameter floating, it is ensured that connect specious and useful life longevity, that is, complete once assembled；
Step 3, the 3rd sections of lifting
First and second coupling part of the 3rd sections of same lifting, prefabricated subsection and pier cap on first, are similarly aligned with lifting again
And after carrying out sag correction, then turn knob part, the casting concrete in gap, complete second and splice.
By the size of rationally first, second coupling part of design and knob portion, particularly connector and knob part
Thickness can make attachment means realize following stress performance.
Vertical axis are transmitted by first and second coupling part and knob portion contact surface using when being acted on frequently occurred earthquake normal
Power and moment of flexure, and elastic range can be in；Connector and knob part can occur small under the effect of the special loads such as rarely occurred earthquake
Relative slip, can play power consumption effect.Can be resetted by turn knob part after unloading.
Knob Precast Concrete Segmental Bridges bridge pier attachment means of the present invention, feature is as follows：Cancel traditional section assembling bridge pier to connect
Presstressed reinforcing steel in connection device.Local stiffening is carried out to join domain in the form of knob splicing.The prefabricated knob at sections
Top splice first welds together with steel reinforcement cage, then casting concrete.Centre uses Rotary button component, and first component interlocks splicing
Together and angle is controlled, then rotate middle Rotary button component, so as to upper and lower two segment be connected together.Advantage is：First,
Prefabricated subsection design is easy, can be completed with direct splicing.When sections is destroyed, connector is replaceable；Secondly, connect during loading
Fitting is all higher than the tensile strength of reinforcing bar in the design process, hysteresis loop is tended to full.Again, eliminate tradition connection in
Presstressed reinforcing steel, bridge pier no longer simultaneously bear superstructure gravity and vertical prestressing, the pier section of non-attached area need not
Particular design.Finally, can be completed using light instrument using knob connection between sections, there is no tensioning vertical prestressing bar etc.
Operation, in-site installation is convenient.The present invention has the quick bridge construction for building demand suitable for various.
The above, is only presently preferred embodiments of the present invention, and any formal limitation is not done to the present invention, is appointed
What, according to technical spirit of the invention, is made within the spirit and principles in the present invention without departing from technical solution of the present invention content
Any modification, equivalent variations and modification, be regarded as the technology category of the present invention program, should be included in protection of the invention
In the range of.
Claims (2)
1. a kind of knob Precast Concrete Segmental Bridges bridge pier attachment means, it is characterised in that include from bottom to top：Lower prefabricated subsection,
The first pontes, knob portion, second connecting portion are divided, upper prefabricated subsection, and the first pontes connects down prefabricated respectively
Sections and knob portion, second connecting portion connect knob portion and upper prefabricated subsection point respectively, the first pontes and the
Two coupling parts connect knob portion respectively using turned upside down mode, wherein,
The first pontes includes：First annulus main body, is provided with plectane, in the circle on the inwall of the first annulus main body
Plate is provided with 8 connectors of equidistantly distributed, and the connector is " L " shape, and it includes horizontal part and vertical component effect, described vertical
Portion is vertically located on the plectane, and the structure of the second connecting portion point is identical with the first pontes；
The knob portion includes：Second annulus main body, is provided with 8 rotations of equidistantly distributed on the inwall of the second annulus main body
Button part, the knob part is a groove, corresponding water during each horizontal part and second connecting portion are divided in the first pontes
Flat portion is buckled between the corresponding tooth of groove two in knob portion using turned upside down mode.
2. knob Precast Concrete Segmental Bridges bridge pier attachment means as claimed in claim 1, it is characterised in that prefabricated section under described
Section is concrete filled steel tube, and the upper prefabricated subsection is armored concrete, and the first pontes, second connecting portion are divided and knob
Part is made of Steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710085571.3A CN106869014B (en) | 2017-02-17 | 2017-02-17 | A kind of knob Precast Concrete Segmental Bridges bridge pier attachment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710085571.3A CN106869014B (en) | 2017-02-17 | 2017-02-17 | A kind of knob Precast Concrete Segmental Bridges bridge pier attachment device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106869014A true CN106869014A (en) | 2017-06-20 |
| CN106869014B CN106869014B (en) | 2019-04-12 |
Family
ID=59166723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710085571.3A Expired - Fee Related CN106869014B (en) | 2017-02-17 | 2017-02-17 | A kind of knob Precast Concrete Segmental Bridges bridge pier attachment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106869014B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109371807A (en) * | 2018-09-28 | 2019-02-22 | 励吾(厦门)科技有限公司 | It is a kind of can quick transformation bridge |
| CN110258306A (en) * | 2019-07-03 | 2019-09-20 | 重庆锦森腾建筑工程咨询有限公司 | A kind of assembled anti-knock bridge pier |
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| CN201031358Y (en) * | 2007-01-30 | 2008-03-05 | 周永杉 | Combined adjustable bridge abutment |
| KR20080057108A (en) * | 2006-12-19 | 2008-06-24 | 재단법인 포항산업과학연구원 | Assembling-type pier |
| 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 |
| KR20120054972A (en) * | 2010-11-22 | 2012-05-31 | 고려대학교 산학협력단 | Prefabricated hollow-segment type pier |
| CN203284729U (en) * | 2013-06-08 | 2013-11-13 | 上海市城市建设设计研究总院 | Screwing-type connecting structure of stand column bearing platform and guide rod |
| CN203947681U (en) * | 2014-01-13 | 2014-11-19 | 润弘精密工程事业股份有限公司 | Steel pipe concrete structure with spiral hoop |
| CN105908621A (en) * | 2016-06-29 | 2016-08-31 | 北京工业大学 | Damage-controllable self-resetting section prefabricated assembled steel pipe concrete bridge pier and manufacturing method thereof |
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2017
- 2017-02-17 CN CN201710085571.3A patent/CN106869014B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080057108A (en) * | 2006-12-19 | 2008-06-24 | 재단법인 포항산업과학연구원 | Assembling-type pier |
| CN201031358Y (en) * | 2007-01-30 | 2008-03-05 | 周永杉 | Combined adjustable bridge abutment |
| 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 |
| KR20120054972A (en) * | 2010-11-22 | 2012-05-31 | 고려대학교 산학협력단 | Prefabricated hollow-segment type pier |
| CN203284729U (en) * | 2013-06-08 | 2013-11-13 | 上海市城市建设设计研究总院 | Screwing-type connecting structure of stand column bearing platform and guide rod |
| CN203947681U (en) * | 2014-01-13 | 2014-11-19 | 润弘精密工程事业股份有限公司 | Steel pipe concrete structure with spiral hoop |
| CN105908621A (en) * | 2016-06-29 | 2016-08-31 | 北京工业大学 | Damage-controllable self-resetting section prefabricated assembled steel pipe concrete bridge pier and manufacturing method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109371807A (en) * | 2018-09-28 | 2019-02-22 | 励吾(厦门)科技有限公司 | It is a kind of can quick transformation bridge |
| CN110258306A (en) * | 2019-07-03 | 2019-09-20 | 重庆锦森腾建筑工程咨询有限公司 | A kind of assembled anti-knock bridge pier |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106869014B (en) | 2019-04-12 |
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Granted publication date: 20190412 Termination date: 20220217 |