CN208105008U - A kind of urban viaduct prestress steel bundle arrangement structure - Google Patents
A kind of urban viaduct prestress steel bundle arrangement structure Download PDFInfo
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- CN208105008U CN208105008U CN201820566379.6U CN201820566379U CN208105008U CN 208105008 U CN208105008 U CN 208105008U CN 201820566379 U CN201820566379 U CN 201820566379U CN 208105008 U CN208105008 U CN 208105008U
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Abstract
The utility model discloses a kind of urban viaduct prestress steel bundle arrangement structures, including bridge upper element, bridge lower component and steel tread assembly, the bridge upper element includes concrete box girder, box girder web, box beam top plate, edge of a wing cantilever, box beam bottom plate and chamber, the inside of the concrete box girder offers the chamber, the chamber quantity is two, and is symmetrically distributed in the left and right ends inside the concrete box girder；Box beam top plate is adjusted to by beam-ends, it can avoid in beam-ends stretch-draw prestressing force steel beam, it can avoid in terms of construction organization, can only effectively solving the problems, such as that working procedure arranges aspect using by the shortcomings that constructing is joined because of the limitation in beam-ends prestressed strand tensioning space, it can effectively shorten the construction period, bridge bigger, connection number is more long for bridge, using beam-ends not tensioning Strands Layout scheme, realization is multi-joint to construct simultaneously, save the time by connection number be doubled and redoubled, the duration shorten effect it is also more significant.
Description
Technical field
The utility model belongs to road and bridge construction technical field, and in particular to a kind of urban viaduct prestressed strand arrangement knot
Structure.
Background technique
With the development of urban modernization, the requirement of traffic various aspects is increasingly improved.In recent years with China city height
The quantity of bridge formation is increasing, and the scale of road and bridge undertaking of construction is also constantly expanding, to new technology and novel construction
The application aspect of material is at rank first.But it is still asked there is some in urban viaduct work progress
Topic, these problems largely all highlight in terms of overpass Key Techniques in Construction.In the municipal construction duration, to meet quality,
Safety, time etc. limitation require, in the case where not influencing local transit, urban viaduct design and construction technical aspect
It is required that increasing therewith.The raising of construction technology inherently improves speed of application, so that shortening the duration reduces cost, it is high to improve city
The economy of bridge formation construction.
Multispan Cast-in-Situ Continuous Beam prestressed strand is located at connection end along the long elongated setting of connection, stretching end at present, when bridge compared with
It is long, when connection number is more, since prestressing force pull end is located at connection end, it can only construct by connection, it is tighter for construction period
Project can seriously affect construction speed.
Utility model content
The purpose of this utility model is to provide a kind of urban viaduct prestress steel bundle arrangement structures, to solve above-mentioned back
Current multispan Cast-in-Situ Continuous Beam prestressed strand is proposed in scape technology along the long elongated setting of connection, stretching end is located at connection end, works as bridge
Beam is longer, when connection number is more, since prestressing force pull end is located at connection end, can only construct by connection, construction period is compared
Tight project, the problem of construction speed can be seriously affected.
To achieve the above object, the utility model provides the following technical solutions：A kind of urban viaduct prestressed strand cloth
Structure, including bridge upper element, bridge lower component and steel tread assembly are set, the bridge upper element includes concrete box
Beam, box girder web, box beam top plate, edge of a wing cantilever, box beam bottom plate and chamber, the inside of the concrete box girder offer the case
Room, the chamber quantity is two, and is symmetrically distributed in the left and right ends inside the concrete box girder, the top of the chamber
The box beam top plate is installed, the box beam top plate is fixedly connected with the concrete box girder, and the edge of a wing cantilever is located at described
The outside of box beam top plate, and be fixedly connected with the box beam top plate, the box beam bottom plate is located at the bottom end of the chamber, and described
Box beam bottom plate is fixedly connected with the concrete box girder, and the box girder web is located at the two sides of the chamber, and the box beam abdomen
The top and bottom end of plate are separately connected the box beam top plate and the box beam bottom plate, and the bridge lower component includes bridge pier branch
Column, bridge pier crossbeam, vase pier shaft and connection frame, the vase pier shaft are located at the lower section of the concrete box girder, and the vase
The top of pier shaft is embedded in the concrete box girder, and is fixedly connected with the box beam bottom plate, the inside of the vase pier shaft
Be fixedly connected by the connection frame, the bridge pier crossbeam is installed on the bottom end of the vase pier shaft, and with the vase pier shaft
It is fixedly connected, the bridge pier pillar is fixedly installed in the lower section of the bridge pier crossbeam, and the steel tread assembly includes prestressed strand
With stretch-draw anchor end anchorage, the prestressed strand is embedded in the box girder web, the box beam top plate and the box beam bottom plate
Inside, and the both ends of the prestressed strand are equipped with stretch-draw anchor end anchorage, prestressed strand described in every two passes through institute
Stretch-draw anchor end anchorage is stated to be fixedly connected.
Preferably, chamber internal gear is equipped in the chamber, the chamber internal gear is fixedly mounted on the interior of the chamber
Side wall, and the prestressed strand is fixedly connected on the chamber internal gear.
Preferably, the box girder web both ends offer expansion joint preformed groove, the box beam top plate and the box beam bottom plate
Both ends offer the expansion joint preformed groove, the length of the expansion joint preformed groove is six centimetres.
Preferably, the concrete box girder is the high prestressed concrete continuous box girder structures such as single box double room skew web plate, and
The concrete box girder uses longitudinal and transverse two dimension prestressing system.
Preferably, the bridge pier struts number is two, and is separately mounted to the left and right ends of the bridge pier below the crossbeam,
The vase pier shaft quantity is two, and is separately mounted to the left and right ends above the bridge pier crossbeam.
Compared with prior art, the utility model has the beneficial effects that：The stretch-draw anchor end of prestressed strand, by beam-ends tune
Whole is box beam top plate or chamber tooth plate, can avoid to can avoid in beam-ends stretch-draw prestressing force steel beam because of beam-ends prestressed strand
The shortcomings that limitation in tensioning space can only be using constructing by connection, in terms of construction organization, can effectively solve working procedure arrangement side
The problem in face, can effectively shorten the construction period, bridges bigger, connection number is more long for bridge, using beam-ends not tensioning steel beam cloth
Set scheme, realize it is multi-joint constructs simultaneously, save the time is doubled and redoubled by connection number, and the effect that the duration shortens is also more significant.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is that the utility model central sill both ends not tensioning web prestressed strand arranges elevation；
Fig. 3 is that the utility model central sill both ends not tensioning top plate prestressed strand arranges elevation；
Fig. 4 is the utility model central sill both ends not stretch-draw prestressing force Strands Layout typical section figure；
In figure：10- bridge upper element, 11- concrete box girder, 12- box girder web, the expansion joint 121- preformed groove, 13- case
Back plate, the edge of a wing 14- cantilever, 15- box beam bottom plate, 16- chamber, 20- bridge lower component, 21- bridge pier pillar, 22- bridge pier are horizontal
Beam, 23- vase pier shaft, 24- connection frame, 30- steel tread assembly, 31- prestressed strand, 32- stretch-draw anchor end anchorage.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-3 is please referred to, the utility model provides a kind of technical solution：A kind of urban viaduct prestressed strand arrangement knot
Structure, including bridge upper element 10, bridge lower component 20 and steel tread assembly 30, bridge upper element 10 include concrete box girder
11, box girder web 12, box beam top plate 13, edge of a wing cantilever 14, box beam bottom plate 15 and chamber 16, the inside of concrete box girder 11 open up
There is chamber 16,16 quantity of chamber is two, and is symmetrically distributed in the left and right ends inside concrete box girder 11, the top of chamber 16
Box beam top plate 13 is installed, box beam top plate 13 is fixedly connected with concrete box girder 11, and edge of a wing cantilever 14 is located at box beam top plate 13
Outside, and be fixedly connected with box beam top plate 13, box beam bottom plate 15 is located at the bottom end of chamber 16, and box beam bottom plate 15 and concrete box
Beam 11 is fixedly connected, and box girder web 12 is located at the two sides of chamber 16, and the top of box girder web 12 and bottom end are separately connected box beam
Top plate 13 and box beam bottom plate 15, bridge lower component 20 include bridge pier pillar 21, bridge pier crossbeam 22, vase pier shaft 23 and connection frame
24, vase pier shaft 23 is located at the lower section of concrete box girder 11, and the top of vase pier shaft 23 is embedded in concrete box girder 11, and
It is fixedly connected with box beam bottom plate 15, the inside of vase pier shaft 23 is fixedly connected by connection frame 24, and bridge pier crossbeam 22 is installed on flower
The bottom end of bottle pier shaft 23, and be fixedly connected with vase pier shaft 23, bridge pier pillar 21 is fixedly installed in the lower section of bridge pier crossbeam 22, steel
Tread assembly 30 includes prestressed strand 31 and stretch-draw anchor end anchorage 32, and prestressed strand 31 is embedded in box girder web 12, box beam
Inside top plate 13 and box beam bottom plate 15, and the both ends of prestressed strand 31 are equipped with stretch-draw anchor end anchorage 32, every two prestressing force
Steel beam 31 is fixedly connected by stretch-draw anchor end anchorage 32.
In the present embodiment, chamber internal gear is equipped in chamber 16, chamber internal gear is fixedly mounted on the inner sidewall of chamber 16,
And prestressed strand 31 is fixedly connected on chamber internal gear, the stretch-draw anchor end of prestressed strand is adjusted to box beam by beam-ends
Top plate or chamber tooth plate can avoid to can avoid in beam-ends stretch-draw prestressing force steel beam because of beam-ends prestressed strand tensioning space
Limitation can only using by connection construct the shortcomings that, box beam bottom plate 15 is located at the bottom end of chamber 16, and box beam bottom plate 15 and concrete
Box beam 11 is fixedly connected, and box girder web 12 is located at the two sides of chamber 16, and the top of box girder web 12 and bottom end are separately connected case
Back plate 13 and box beam bottom plate 15, bridges bigger, connection number is more long for bridge, using beam-ends not tensioning Strands Layout scheme,
Realize multi-joint while constructing, save the time by connection number be doubled and redoubled, the duration shorten effect it is also more significant.
Further, chamber internal gear is equipped in chamber 16, chamber internal gear is fixedly mounted on the inner sidewall of chamber 16, and
Prestressed strand 31 is fixedly connected on chamber internal gear.
In the present embodiment, chamber internal gear is equipped in chamber 16, chamber internal gear is fixedly mounted on the inner sidewall of chamber 16,
And prestressed strand 31 is fixedly connected on chamber internal gear, it can avoid to can avoid in beam-ends stretch-draw prestressing force steel beam because of beam
The shortcomings that holding the limitation in prestressed strand tensioning space can only be using constructing by connection.
Further, 12 both ends of box girder web offer expansion joint preformed groove 121, box beam top plate 13 and box beam bottom plate 15
Both ends offer expansion joint preformed groove 121, and the length of expansion joint preformed groove 121 is six centimetres.
In the present embodiment, 12 both ends of box girder web offer expansion joint preformed groove 121, box beam top plate 13 and box beam bottom plate 15
Both ends offer expansion joint preformed groove 121, the length of expansion joint preformed groove 121 is six centimetres, can make box girder web 12
In expanded by heating, there are certain extendable rooms.
Further, concrete box girder 11 is the high prestressed concrete continuous box girder structures such as single box double room skew web plate, and
Concrete box girder 11 uses longitudinal and transverse two dimension prestressing system.
In the present embodiment, concrete box girder 11 is the high prestressed concrete continuous box girder structures such as single box double room skew web plate,
And concrete box girder 11 use longitudinal and transverse two dimension prestressing system, 11 longitudinal prestressing of concrete box girder using 15-22,15-19,
Tetra- seed type of 15-16,15-12, is respectively adopted M15-22, M15-19, M15-16, M15-12 type anchorage, pre- in box girder web 12
Stress steel beam 31 uses 15-22,15-19, and prestressed strand 31 uses 15-16,15-12, part box girder web 12 in top, bottom plate
Middle prestressed strand 31 is elongated continuous beam, and notch, bridge floor tensioning is arranged in top plate, sets tooth plate tensioning in remaining steel Shu Caiyong beam
Anchored end anchorage 32.
Further, 21 quantity of bridge pier pillar is two, and is separately mounted to the left and right ends of 22 lower section of bridge pier crossbeam, flower
Bottle 23 quantity of pier shaft is two, and is separately mounted to the left and right ends of 22 top of bridge pier crossbeam.
In the present embodiment, 21 quantity of bridge pier pillar is two, and is separately mounted to the left and right ends of 22 lower section of bridge pier crossbeam,
23 quantity of vase pier shaft is two, and is separately mounted to the left and right ends of 22 top of bridge pier crossbeam, carrys out stabilizing concrete box beam
11。
The working principle and process for using of the utility model：It, will be along the long elongated setting of connection after the utility model installs
Prestressed strand 31, be adjusted to the short beam in the 16 internal gear tensioning of box beam top plate 13 or chamber, short beam arrangement exists certain
Staggeredly overlap, by the stretch-draw anchor end anchorage 32 of prestressed strand 13, box beam top plate 13 or chamber tooth are adjusted to by beam-ends
On plate, in cast-in-situ box girder, beam-ends stretch-draw prestressing force steel beam 31 and beam-ends not stretch-draw prestressing force Strands Layout, two kinds of layout pattern meters
Obtained section stress result is smaller compared to difference, is all satisfied code requirement.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of urban viaduct prestress steel bundle arrangement structure, it is characterised in that：Including under bridge upper element (10), bridge
Parts (20) and steel tread assembly (30), the bridge upper element (10) include concrete box girder (11), box girder web (12),
The inside of box beam top plate (13), edge of a wing cantilever (14), box beam bottom plate (15) and chamber (16), the concrete box girder (11) opens up
Have the chamber (16), chamber (16) quantity is two, and is symmetrically distributed in the internal left side of the concrete box girder (11)
Right both ends, the top of the chamber (16) are equipped with the box beam top plate (13), the box beam top plate (13) and the concrete
Box beam (11) is fixedly connected, and the edge of a wing cantilever (14) is located at the outside of the box beam top plate (13), and with the box beam top plate
(13) be fixedly connected, the box beam bottom plate (15) is located at the bottom end of the chamber (16), and the box beam bottom plate (15) with it is described
Concrete box girder (11) is fixedly connected, and the box girder web (12) is located at the two sides of the chamber (16), and the box girder web
(12) top and bottom end is separately connected the box beam top plate (13) and the box beam bottom plate (15), the bridge lower component
It (20) include bridge pier pillar (21), bridge pier crossbeam (22), vase pier shaft (23) and connection frame (24), vase pier shaft (23) position
It is embedded in the top of the lower section of the concrete box girder (11), and the vase pier shaft (23) in the concrete box girder (11)
It is interior, and be fixedly connected with the box beam bottom plate (15), the inside of the vase pier shaft (23) is fixed by the connection frame (24)
Connection, the bridge pier crossbeam (22) is installed on the bottom end of the vase pier shaft (23), and fixes and connect with the vase pier shaft (23)
It connects, the bridge pier pillar (21) is fixedly installed in the lower section of the bridge pier crossbeam (22), and the steel tread assembly (30) includes answering in advance
Power steel beam (31) and stretch-draw anchor end anchorage (32), the prestressed strand (31) are embedded in the box girder web (12), described
Box beam top plate (13) and the box beam bottom plate (15) are internal, and the both ends of the prestressed strand (31) are equipped with the stretch-draw anchor
It holds anchorage (32), prestressed strand (31) described in every two is fixedly connected by stretch-draw anchor end anchorage (32).
2. a kind of urban viaduct prestress steel bundle arrangement structure according to claim 1, it is characterised in that：The chamber
(16) chamber internal gear is equipped in, the chamber internal gear is fixedly mounted on the inner sidewall of the chamber (16), and the chamber
The prestressed strand (31) are fixedly connected on internal gear.
3. a kind of urban viaduct prestress steel bundle arrangement structure according to claim 1, it is characterised in that：The box beam
Web (12) both ends offer expansion joint preformed groove (121), the both ends of the box beam top plate (13) and the box beam bottom plate (15)
The expansion joint preformed groove (121) is offered, the length of the expansion joint preformed groove (121) is six centimetres.
4. a kind of urban viaduct prestress steel bundle arrangement structure according to claim 1, it is characterised in that：The coagulation
Native box beam (11) is the high prestressed concrete continuous box girder structures such as single box double room skew web plate, and the concrete box girder (11) is adopted
With longitudinal and transverse two dimension prestressing system.
5. a kind of urban viaduct prestress steel bundle arrangement structure according to claim 1, it is characterised in that：The bridge pier
Pillar (21) quantity is two, and is separately mounted to the left and right ends below the bridge pier crossbeam (22), the vase pier shaft
(23) quantity is two, and is separately mounted to the left and right ends above the bridge pier crossbeam (22).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820566379.6U CN208105008U (en) | 2018-04-20 | 2018-04-20 | A kind of urban viaduct prestress steel bundle arrangement structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820566379.6U CN208105008U (en) | 2018-04-20 | 2018-04-20 | A kind of urban viaduct prestress steel bundle arrangement structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110005429A (en) * | 2019-05-22 | 2019-07-12 | 河南省交通规划设计研究院股份有限公司 | The box top board structure of city tunnel bifurcation mouth |
| CN110042865A (en) * | 2019-05-22 | 2019-07-23 | 河南省交通规划设计研究院股份有限公司 | Box top board structure for large span city tunnel |
| CN110438886A (en) * | 2019-08-20 | 2019-11-12 | 中国铁路设计集团有限公司 | A kind of railway precast segment spliced girder beam-ends processing structure and method |
| CN113338161A (en) * | 2021-04-15 | 2021-09-03 | 广东省交通规划设计研究院集团股份有限公司 | Concrete box girder top surface prestress steel beam tensioning structure and construction method thereof |
-
2018
- 2018-04-20 CN CN201820566379.6U patent/CN208105008U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110005429A (en) * | 2019-05-22 | 2019-07-12 | 河南省交通规划设计研究院股份有限公司 | The box top board structure of city tunnel bifurcation mouth |
| CN110042865A (en) * | 2019-05-22 | 2019-07-23 | 河南省交通规划设计研究院股份有限公司 | Box top board structure for large span city tunnel |
| CN110005429B (en) * | 2019-05-22 | 2024-09-13 | 河南省交通规划设计研究院股份有限公司 | Box-type top plate structure of urban tunnel bifurcation |
| CN110438886A (en) * | 2019-08-20 | 2019-11-12 | 中国铁路设计集团有限公司 | A kind of railway precast segment spliced girder beam-ends processing structure and method |
| CN113338161A (en) * | 2021-04-15 | 2021-09-03 | 广东省交通规划设计研究院集团股份有限公司 | Concrete box girder top surface prestress steel beam tensioning structure and construction method thereof |
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Address after: 100024 Beijing, Guanzhuang, Chaoyang District, Zhou Patentee after: CCCC comprehensive planning and Design Institute Co.,Ltd. Address before: 100024 No. 1 Design Institute, zhoujiajing courtyard, Guanzhuang, Chaoyang District, Beijing Patentee before: CCCC HIGHWAY SURVEY & DESIGN Co.,Ltd. OF FHEC |
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