CN110453588A - A kind of lattice bent cap and its construction method - Google Patents
A kind of lattice bent cap and its construction method Download PDFInfo
- Publication number
- CN110453588A CN110453588A CN201910640906.2A CN201910640906A CN110453588A CN 110453588 A CN110453588 A CN 110453588A CN 201910640906 A CN201910640906 A CN 201910640906A CN 110453588 A CN110453588 A CN 110453588A
- Authority
- CN
- China
- Prior art keywords
- bent cap
- lattice
- cap
- bent
- pier stud
- 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 26
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 31
- 239000010959 steel Substances 0.000 claims abstract description 31
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 15
- 238000003780 insertion Methods 0.000 claims abstract description 7
- 230000037431 insertion Effects 0.000 claims abstract description 7
- 239000004567 concrete Substances 0.000 claims description 19
- 239000011150 reinforced concrete Substances 0.000 claims description 7
- 239000011440 grout Substances 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 3
- 239000008267 milk Substances 0.000 claims description 3
- 210000004080 milk Anatomy 0.000 claims description 3
- 235000013336 milk Nutrition 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 2
- 239000012634 fragment Substances 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000005304 joining Methods 0.000 abstract description 2
- 230000011218 segmentation Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 210000003205 muscle Anatomy 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 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
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000004574 high-performance concrete Substances 0.000 description 1
- 239000011374 ultra-high-performance concrete 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
-
- 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
Abstract
The present invention relates to a kind of lattice bent cap and its construction methods, it is arranged between girder support and pier stud (4), it is characterized in that, including spaced first bent cap (1) and the second bent cap (2), it is connected between first bent cap (1) and the second bent cap (2) by crossbeam (3), first bent cap (1) and the second bent cap (2) are segmented splicing or overall length bent cap, and the vertical duct (9) being used for across vertical insertion reinforcing bar (6) is provided on first bent cap (1) and the second bent cap (2).Compared with prior art, merogenesis segmentation can be used in the present invention during transportation, can reduce transport difficulty；The setting of bent cap fragment, reduces hoisting difficulty；Bent cap is fixed temporarily with pier stud using steel tenon, without adding the Joining Technology of temporary support and complexity；Improve the safety of bridge.
Description
Technical field
The present invention relates to bridge structures, more particularly, to a kind of lattice bent cap and its construction method.
Background technique
Bent cap refers to that, for bearing, distribution and the load for transmitting superstructure, the crossbeam being arranged at the top of pile bent pier is main
Acting on is supporting bridge superstructure, and whole load is passed to substructure.There is bridge pier to be directly connected to bent cap, also there is bridge
Bent cap is reconnected after staking cushion cap or column.
Bent cap is mostly using support cast-in-place way in the past.With the propulsion that China's industrialization is built, also has and will cover in industry
Beam using prefabricated, including bent cap it is integral prefabricated after on-site hoisting construction.However, with the growth of current demand, overpass
Design width and tonnage also increase.The large-sized bent cap in part weighs hundreds of tons, and the bent cap that weight is big, length is long can be right
Transport, lifting cause bigger difficulty.In addition, during hoisting large-size bent cap, need using heavy loop wheel machine, loop wheel machine land occupation compared with
Greatly, it will affect the traffic condition on construction site periphery.
Have at present bent cap total cross-section transversal sectional is prefabricated, there is still a need for few support or lateral temporary consolidations for assembled process
Measure.Also have using the prefabricated bent cap of assembled fragment, but its final shape remains as total cross-section, it is identical as conventional version, only
Facilitate lifting construction.The prior art is in the connection type that the linked vector graph of bent cap and pier stud is reinforced bar sleeve etc complexity, construction
It is complicated.And the prefabricated bent cap of fragment is complete bent cap, the problem of not can solve long-distance transport still.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of lattice bent cap and
Its construction method.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of lattice bent cap is arranged between girder support and pier stud, including spaced first bent cap and second
Bent cap is connected between first bent cap and the second bent cap by crossbeam, and first bent cap and the second bent cap are long in bent cap
Spending direction is segmented splicing or overall length bent cap.
Further, first bent cap and the second bent cap are prestressed reinforced concrete construction or steel construction or steel concrete combination knot
Structure.
Further, when the first bent cap and the second bent cap are prestressed reinforced concrete construction, segmented splicing is using dry
Seam is glued seam；
When the first bent cap and the second bent cap are steel construction, segmented splicing is using welding, bolt or riveting.
Further, when the first bent cap and the second bent cap are prestressed reinforced concrete construction, bent cap when segmented splicing
Inside is disposed with the reinforcing bar for passing through seam along bent cap length direction, is capable of the safety of enhancing structure.
Further, the position of the crossbeam is corresponding with the position of upper end girder support, can carry out to girder support
Support.Horizontal depth of beam is less than or equal to corresponding position lid depth of beam.
Further, the section of the crossbeam is rectangle or I-shaped, and the material of the crossbeam is armored concrete or surpasses
High performance concrete or steel.
Further, the cross sectional shape of first bent cap and the second bent cap is rectangle, L-type, I-shaped or inverted T-shaped.When
Top casting concrete is required between the first bent cap and the second bent cap with meeting driving when section is L-type.
Further, vertical be used for across the duct of reinforcing bar is provided on first bent cap and the second bent cap.
Further, the junction of the pier stud and bent cap is provided with one or more steel tenons or concrete shear key,
The bent cap bottom end is provided with the one or more steel tank mouths or corresponding coagulation matched with steel tenon or concrete shear key
Native shear connector.In addition to this bent cap can also be connected with pier stud using grout sleeve.
Further, the pier stud is connected with bent cap by joint glue split.
Further, the pier stud is arranged with cushion cap, the company of the junction and pier stud and bent cap of the pier stud and cushion cap
Connect that mode is identical, the junction of the cushion cap and pier stud is provided with one or more steel tenons or concrete shear key, the pier
Column bottom end is provided with the one or more steel tank mouths or corresponding concrete shear matched with steel tenon or concrete shear key
Key.
Further, the pier stud is using segmented prefabricated, it is segmented between connection also use the above method.
Further, vertical be used for across the duct of reinforcing bar is correspondingly arranged on the pier stud and cushion cap.
A kind of construction method of lattice bent cap, the specific steps are as follows:
(a) the first bent cap and the second bent cap are lifted to pier stud top, by crossbeam by the first bent cap and the second bent cap phase
Connection；
(b) cushion cap, pier stud and bent cap are spliced from bottom to top and is completed, it is reserved to be vertically inserted into reinforcing bar insertion from bent cap top
Seam is simultaneously passed through in duct, extend into cushion cap always, bent cap, pier stud and cushion cap are together in series,；
(c) be in the milk upwards from duct bottom, until grout at the top of bent cap, thus will vertical insertion reinforcing bar be fixed on bent cap,
In pier stud and cushion cap, meet seam crossing force request.
Further, the junction interlaced arrangement of the first bent cap and the second bent cap and crossbeam has a U-shaped steel muscle, outside U-shaped steel muscle
Ultra-high performance concrete is poured, crossbeam is formed.
Further, when pier stud and cushion cap are all made of cast-in-place construction, which is only used for connection bent cap and pier stud.
Compared with prior art, the invention has the following advantages:
1, lattice bent cap of the invention can use merogenesis segmentation during transportation, can reduce transport difficulty；
2, lattice bent cap fragment of the invention is arranged, and the weight of monolithic is greatly reduced after fragment, reduces hoisting difficulty；
3, the L-type section form in the present invention can reduce structural construction height；
4, lattice bent cap of the invention and pier stud are fixed temporarily using steel tenon, without additional temporary support and complexity
Joining Technology；
5, lattice bent cap of the invention with pier stud even cushion cap is connect during, using reinforcing bar by girder steel and pier stud
Connection, or even three is connected, bonding strength is increased, the safety of bridge is improved.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of lattice bent cap of the present invention；
Fig. 2 is the segmented schematic diagram of lattice bent cap of the present invention；
Fig. 3 is the decomposition diagram of lattice bent cap of the present invention；
Fig. 4 is the structural schematic diagram that lattice bent cap of the present invention section is L-type；
Fig. 5 is the schematic diagram of lattice bent cap i shaped cross section of the present invention；
Fig. 6 is the schematic diagram in lattice bent cap inverted T-shaped section of the present invention；
Fig. 7 is the stereoscopic schematic diagram that lattice bent cap is connect with pier stud in the present invention；
Fig. 8 is the diagrammatic cross-section that lattice bent cap is connect with pier stud in the present invention；
Fig. 9 is the schematic diagram that lattice bent cap, pier stud are connected with cushion cap in the present invention.
1, the first bent cap, the 2, second bent cap, 3, crossbeam, 4, pier stud, 5, cushion cap, 6, be vertically inserted into reinforcing bar, 7, steel tenon, 8,
Steel tank mouth, 9, duct.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
A kind of lattice bent cap is arranged between girder support and pier stud 4, as shown in figures 1 and 3, including interval setting
The first bent cap 1 and the second bent cap 2, be connected between the first bent cap 1 and the second bent cap 2 by crossbeam 3, the first bent cap 1 and the
Two bent caps 2 are segmented splicing (Fig. 2) or overall length bent cap in bent cap length direction.First bent cap 1 and the second bent cap 2 are prestressing force
Concrete structure or steel construction or steel concrete composite structure.When the first bent cap 1 and the second bent cap 2 are prestressed reinforced concrete construction,
Seam is stitched using stem grafting or is glued in segmented splicing, has joint bar between seam or without joint bar；When the first bent cap 1 and the second bent cap 2 are steel
When structure, segmented splicing is using welding, bolt or riveting.The position of crossbeam 3 is corresponding with the position of upper end girder support, energy
It is enough that girder support is supported.The height of crossbeam 3 is less than or equal to the bent cap height of corresponding position.
The section of crossbeam 3 is rectangle or I-shaped, and the material of crossbeam 3 is armored concrete or very-high performance armored concrete
Or steel.The cross sectional shape of first bent cap 1 and the second bent cap 2 is rectangle, L-type, I-shaped (Fig. 5) or inverted T-shaped (Fig. 6).Such as Fig. 4 institute
Show, when section is L-type, top casting concrete is required between the first bent cap 1 and the second bent cap 2 with meeting driving.First bent cap
1 and second be provided on bent cap 2 it is vertical for across the duct 9 of vertical insertion reinforcing bar 6.As Figure 7-8, pier stud 4 and lid
The junction of beam is provided with one or more steel tenons 7 or concrete shear key, and bent cap bottom end is provided with to be matched with steel tenon 7
One or more steel tank mouths 8 or matched concrete shear key.Pier stud 4 is arranged with cushion cap 5, the company of pier stud 4 and cushion cap 5
It is identical as the connection type of pier stud 4 and bent cap to meet place.Vertical be used for across vertical slotting is correspondingly arranged on pier stud 4 and cushion cap 5
Enter the duct 9 of reinforcing bar 6.
It is completed as shown in figure 9, from bottom to top splicing cushion cap 5, pier stud 4 and bent cap, will vertically be inserted into steel from bent cap top
Muscle 6 is inserted into reserving hole channel 9 and passes through seam, extend into always in cushion cap 5, bent cap, pier stud 4 and cushion cap 5 is together in series, from hole
9 bottom of road is in the milk upwards, until grout at the top of bent cap, so that vertical insertion reinforcing bar 6 is fixed on bent cap, pier stud 4 and cushion cap 5
In, meet seam crossing force request.When pier stud 4 and cushion cap 5 are all made of cast-in-place construction, which is only used for connection bent cap
With pier stud 4.
The above description of the embodiments is intended to facilitate ordinary skill in the art to understand and use the invention.
Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein general
Principle is applied in other embodiments without having to go through creative labor.Therefore, the present invention is not limited to the above embodiments, ability
Field technique personnel announcement according to the present invention, improvement and modification made without departing from the scope of the present invention all should be of the invention
Within protection scope.
Claims (10)
1. a kind of lattice bent cap, it is arranged between girder support and pier stud (4), which is characterized in that including spaced the
One bent cap (1) and the second bent cap (2) are connected between first bent cap (1) and the second bent cap (2) by crossbeam (3), described
First bent cap (1) and the second bent cap (2) are segmented splicing or overall length bent cap in bent cap length direction.
2. a kind of lattice bent cap according to claim 1, which is characterized in that first bent cap (1) and the second bent cap
It (2) is prestressed reinforced concrete construction or steel construction or steel concrete composite structure.
3. a kind of lattice bent cap according to claim 2, which is characterized in that when the first bent cap (1) and the second bent cap (2)
When for prestressed reinforced concrete construction, seam is stitched using stem grafting or is glued in segmented splicing；
When the first bent cap (1) and the second bent cap (2) are steel construction, segmented splicing is using welding, bolt or riveting.
4. a kind of lattice bent cap according to claim 3, which is characterized in that when the first bent cap (1) and the second bent cap (2)
When for prestressed reinforced concrete construction, the reinforcing bar for passing through seam is disposed with along bent cap length direction inside bent cap when segmented splicing.
5. a kind of lattice bent cap according to claim 1, which is characterized in that the position of the crossbeam (3) and upper end master
The position of beam support is corresponding.
6. a kind of lattice bent cap according to claim 1, which is characterized in that first bent cap (1) and the second bent cap
(2) cross sectional shape is rectangle, L-type, I-shaped or inverted T-shaped.
7. a kind of lattice bent cap according to claim 6, which is characterized in that when cross sectional shape is L-type, the first bent cap
(1) the top casting concrete between the second bent cap (2).
8. a kind of lattice bent cap according to claim 1, which is characterized in that first bent cap (1) and the second bent cap
(2) the vertical duct (9) being used for across vertical insertion reinforcing bar (6) is provided on.
9. a kind of lattice bent cap according to claim 1, which is characterized in that the pier stud (4) and bent cap pass through seam
Connection is closed in splicing, and junction is provided with concrete shear key or one or more steel tenons (7), and the bent cap bottom end is provided with
Match one or more steel tank mouths (8) of concrete shear key or steel tenon (7).
10. the construction method of any one lattice bent cap described in -9 according to claim 1, which is characterized in that specifically include
Following steps:
(a) by the first bent cap (1) and the second bent cap (2) lifting to pier stud (4) top, by crossbeam (3) by the first bent cap (1) and
Second bent cap (2) is connected；
(b) it will vertically be inserted into reinforcing bar (6) insertion reserving hole channel (9) from the top of bent cap and pass through seam；
(c) it is in the milk upwards from duct (9) bottom, until grout at the top of bent cap, so that will vertically be inserted into reinforcing bar (6) is fixed on bent cap
In pier stud (4), to realize the connection of bent cap and pier stud (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910640906.2A CN110453588A (en) | 2019-07-16 | 2019-07-16 | A kind of lattice bent cap and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910640906.2A CN110453588A (en) | 2019-07-16 | 2019-07-16 | A kind of lattice bent cap and its construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110453588A true CN110453588A (en) | 2019-11-15 |
Family
ID=68482742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910640906.2A Pending CN110453588A (en) | 2019-07-16 | 2019-07-16 | A kind of lattice bent cap and its construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110453588A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114635349A (en) * | 2021-12-06 | 2022-06-17 | 中交第二公路勘察设计研究院有限公司 | Light-duty assembled pier suitable for non-violent earthquake district |
| CN116289494A (en) * | 2023-05-19 | 2023-06-23 | 湖南省交通规划勘察设计院有限公司 | Prefabricated assembled bridge and construction method thereof |
| CN116289482A (en) * | 2023-05-24 | 2023-06-23 | 湖南省交通规划勘察设计院有限公司 | Sectional prefabricated assembled bridge and construction method thereof |
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| KR20100071413A (en) * | 2008-12-19 | 2010-06-29 | 재단법인 포항산업과학연구원 | Pier with precast coping and construction method of the same |
| CN102409607A (en) * | 2011-09-26 | 2012-04-11 | 上海市城市建设设计研究总院 | Separately precast and assembled bent cap and construction technology |
| 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 |
| CN203768795U (en) * | 2014-04-18 | 2014-08-13 | 宁波今新集团有限公司 | Concrete bent cap |
| KR101702098B1 (en) * | 2016-06-27 | 2017-02-02 | 주식회사 지에스씨 | Structure for combining pile and Coping of prefabricate girder bridge |
| CN109826090A (en) * | 2019-04-01 | 2019-05-31 | 上海市城市建设设计研究总院（集团）有限公司 | Assembled fragment bent cap and attaching method thereof |
| CN210507105U (en) * | 2019-07-16 | 2020-05-12 | 同济大学 | Lattice type bent cap |
-
2019
- 2019-07-16 CN CN201910640906.2A patent/CN110453588A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20100071413A (en) * | 2008-12-19 | 2010-06-29 | 재단법인 포항산업과학연구원 | Pier with precast coping and construction method of the same |
| CN102409607A (en) * | 2011-09-26 | 2012-04-11 | 上海市城市建设设计研究总院 | Separately precast and assembled bent cap and construction technology |
| 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 |
| CN203768795U (en) * | 2014-04-18 | 2014-08-13 | 宁波今新集团有限公司 | Concrete bent cap |
| KR101702098B1 (en) * | 2016-06-27 | 2017-02-02 | 주식회사 지에스씨 | Structure for combining pile and Coping of prefabricate girder bridge |
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| CN210507105U (en) * | 2019-07-16 | 2020-05-12 | 同济大学 | Lattice type bent cap |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114635349A (en) * | 2021-12-06 | 2022-06-17 | 中交第二公路勘察设计研究院有限公司 | Light-duty assembled pier suitable for non-violent earthquake district |
| CN116289494A (en) * | 2023-05-19 | 2023-06-23 | 湖南省交通规划勘察设计院有限公司 | Prefabricated assembled bridge and construction method thereof |
| CN116289482A (en) * | 2023-05-24 | 2023-06-23 | 湖南省交通规划勘察设计院有限公司 | Sectional prefabricated assembled bridge and construction method thereof |
| CN116289482B (en) * | 2023-05-24 | 2023-09-05 | 湖南省交通规划勘察设计院有限公司 | Sectional prefabricated assembled bridge and construction method thereof |
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