CN106592404A - Steel-concrete composite beam of high speed railway - Google Patents
Steel-concrete composite beam of high speed railway Download PDFInfo
- Publication number
- CN106592404A CN106592404A CN201611259962.4A CN201611259962A CN106592404A CN 106592404 A CN106592404 A CN 106592404A CN 201611259962 A CN201611259962 A CN 201611259962A CN 106592404 A CN106592404 A CN 106592404A
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- China
- Prior art keywords
- steel
- speed railway
- base plate
- box beam
- horizontal
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- 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.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
-
- 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
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
- E01D19/125—Grating or flooring for bridges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a steel-concrete composite beam of a high speed railway. The steel-concrete composite beam comprises an opening steel box beam body and a prefabricated concrete deck slab, wherein the prefabricated concrete deck slab is erected on the opening steel box beam body; the opening steel box beam body is of a U-shaped steel box beam structure with an upward opening and defined by a horizontal base plate and webs which are obliquely arranged on the two sides of the horizontal base plate; the opening width of the opening steel box beam body gradually increases from bottom to top, horizontal wing plates are formed by means of the method that the upper edges of the webs of the two sides of the horizontal base plate bend inwards and extend, and oblique clapboards are symmetrically arranged on the inner walls of the webs of the two sides of the horizontal base plate and distributed in the length directions of the webs in a spaced mode; and a concrete layer is poured on the horizontal base plate. According to the steel-concrete composite beam of the high speed railway, the opening steel box beam body is welded through steel plates, the mass is easier to control, the construction mode of on-the-scene assembling can save formworks during construction, and the formwork erecting process is omitted during construction, so that the on-scene working time is reduced; the construction period is shortened, and the economic benefits are improved; and when people step over a busy road, interference in existing transportation can be greatly reduced, and the comprehensive benefits can be improved.
Description
Technical field
The invention belongs to technical field of bridge engineering, in particular to a kind of high-speed railway steel-concrete composite beam.
Background technology
High-speed railway and the development of urban transportation, bring more and more city Nei Xinxiu circuits and urban track traffic phase
The problem with line crossing is handed over, this requires that bridge structure had both met high-speed railway and runed required bearing capacity and stiffness, and energy
The interference of existing traffic will be minimized.
High-speed railway compared with the current relatively conventional employing concrete continuous beam of long-span beams xoncrete structure, common coagulation
Native Construction of continuous beam needs to arrange Hanging Basket cantilever, after concrete reaches design strength can stretch-draw prestressing force, then carry out next
The construction in individual stage, the duration is longer and existing traffic is disturbed.In built railway combination beam, more is such as 1
Shown I-steel-cast in place concrete plate form, I-steel 16 is using lifting, after lateral connection, cast-in-place concrete floorings
17.However, the combination beam bearing capacity of existing I-steel and cast in place concrete plate form is little, torsional property is poor, structural soundness
Difference, noise is big, and later maintenance maintenance work amount is larger.
The content of the invention
Present invention aim to provide that a kind of bearing capacity is big, torsional property is good, structural soundness is high and to existing friendship
The little high-speed railway steel-concrete composite beam of logical interference.
For achieving the above object, the present invention designed by high-speed railway steel-concrete composite beam, including open steel box beam and
The precast concrete floorings being erected in open steel box beam, the open steel box beam is by horizonal base plate and is inclined at water
The opening up U-shaped steel box girder that the web of flat underside both sides is surrounded, the A/F of the open steel box beam from down to
On gradually increase；The extension that curves inwardly of the web top edge of the both sides forms horizontal wing plate；The web inwall of the both sides
On be symmetrically arranged with spaced apart inclined clapboard along its length, poured concrete layer on the horizonal base plate.
Further, the steel pipe support being fixedly connected with both sides inclined clapboard is provided with the open steel box beam, each institute
Steel pipe support is stated including a horizontal steel pipe and two oblique steel pipes positioned opposite being arranged on below horizontal steel pipe, the horizontal stroke
To steel pipe across the openend for being arranged on open steel box beam, its two ends respectively be fixedly connected at the top of the inclined clapboard of both sides；It is described
One end of oblique steel pipe is fixedly connected with the middle part of horizontal steel pipe, and the other end is fixedly connected with the bottom of inclined clapboard.
Further, several are arranged at intervals with the horizonal base plate to add with the vertically arranged horizonal base plate in its upper surface
Strong rib.
Further, several web ribs with its inwall welding of interval setting on the inwall of the web.
Further, the upper surface of the horizontal wing plate is arranged at intervals with along its length several WELDING STUDSs.
Yet further, the both sides inclined clapboard top is arranged with the mounting seat for installing horizontal steel pipe two ends.
Further, the both sides inclined clapboard bottom symmetrical is provided with the fixed seat for installing oblique steel ttom of pipe end.
Compared with prior art, the invention has the advantages that：
First, the opening box beam of the present invention is welded by steel plate, quality is easily controlled, and on-site consolidation applies during construction
Work mode can save template, save die process during construction, reduce the field operation time, the reduction of erection time, increase economic efficiency；
When across busy road, the interference to existing traffic can be greatly decreased, improve comprehensive benefit.
Second, the opening box beam of the present invention has excellent mechanical property, bring more while section bearing capacity is kept
Little deck-molding, therefore in across obstacle, especially during the existing line stricter to Clearance requirement, combination beam can be preferably
The task of crossing over, or even the rapid construction in the case where traffic is not blocked are completed, advantage becomes apparent from.
Third, the steel-concrete composite beam of the present invention is while rigidity and bearing capacity is kept, possess less deadweight and
More preferable ductility, shock resistance is higher, and can reduce basis and dimension of platform, and torsional property is more excellent, more applicable
In small curve radius part of path.
Description of the drawings
Fig. 1 is the structural representation of I-steel-cast in place concrete plate form combination beam in prior art；
Fig. 2 is the structural representation of high-speed railway steel-concrete composite beam of the present invention；
Fig. 3 is along the structural representation in A-A directions in Fig. 2；
Wherein：1- open steel box beams, 2- precast concrete floorings, 3- horizonal base plates, 4- webs, the horizontal wing plates of 5-, 6-
Inclined clapboard, 7- concrete layers, 8- steel pipe supports, the horizontal steel pipes of 9-, the oblique steel pipes of 10-, 11- horizonal base plate ribs, 12- webs
Ribs, 13- WELDING STUDSs, 14- mounting seats, 15- fixed seats.
Specific embodiment
Below in conjunction with the accompanying drawings the present invention is described in further detail with specific embodiment.
As shown in 2 and 3 figures, a kind of high-speed railway steel-concrete composite beam of the present embodiment, including the He of open steel box beam 1
The precast concrete floorings 2 being erected in open steel box beam 1, open steel box beam 1 is by horizonal base plate 3 and is inclined at water
The opening up U-shaped steel box girder that the web 4 of the both sides of flat underside 3 is surrounded, the A/F of open steel box beam 1 is from bottom to up
Gradually increase；The extension that curves inwardly of the top edge of web 4 of both sides forms horizontal wing plate 5；Symmetrically set on the inwall of web 4 of both sides
Spaced apart inclined clapboard 6 along its length is equipped with, concrete layer 7 has been poured on horizonal base plate 3.
As shown in figure 3, being provided with the steel pipe support 8 being fixedly connected with both sides inclined clapboard 6, each steel in open steel box beam 1
Two oblique steel pipes 10 positioned opposite that pipe holder 8 includes a horizontal steel pipe 9 and is arranged on below horizontal steel pipe 9, laterally
Across the openend for being arranged on open steel box beam 1, its two ends is fixedly connected respectively steel pipe 9 with the top of both sides inclined clapboard 6；It is oblique
One end of steel pipe 10 is fixedly connected with the middle part of horizontal steel pipe 9, and the other end is fixedly connected with the bottom of inclined clapboard 6；Two skew backs every
The top of plate 6 is arranged with the mounting seat 14 for installing the two ends of horizontal steel pipe 9, and the two ends of horizontal steel pipe 9 can respectively insert installation
Fixed in seat 14, the bottom symmetrical of both sides inclined clapboard 6 is provided with the fixed seat 15 for installing the bottom of oblique steel pipe 10.Horizonal base plate 3
On be arranged at intervals with several with the vertically arranged horizonal base plate ribs 11 in its upper surface, interval setting on the inwall of web 4
Several web ribs 12 with its inwall welding.The upper surface of horizontal wing plate 5 is arranged at intervals with along its length some
Individual WELDING STUDS 13, the fastness connected between wing plate 5 and precast concrete floorings 2 so as to improve the standard..
The high-speed railway steel-concrete combined structure of the present invention can be used on high-speed railway and cross over city, with grade separation road frequency
The situation of numerous intersection, and with its construction convenient, duration shorter, stronger antitorque and anti-seismic performance, it is little to existing Coherent traffic noise
It is bridge type of the railway bridge in a kind of stronger competitiveness of middle span etc. advantage.
More than, specific embodiment only of the invention, it is noted that any those of ordinary skill in the art are at this
In bright disclosed technical scope, the change or replacement that can be readily occurred in all should be included within the scope of the present invention.
Claims (7)
1. a kind of high-speed railway steel-concrete composite beam, it is characterised in that：Including open steel box beam (1) and it is erected at open steel
Precast concrete floorings (2) in box beam (1), the open steel box beam (1) is by horizonal base plate (3) and is inclined at water
The opening up U-shaped steel box girder that the web (4) of flat underside (3) both sides is surrounded, the opening width of the open steel box beam (1)
Degree gradually increases from bottom to up；The extension that curves inwardly of web (4) top edge of the both sides forms horizontal wing plate (5)；It is described
Spaced apart inclined clapboard (6) along its length, the horizonal base plate (3) are symmetrically arranged with web (4) inwall of both sides
On poured concrete layer (7).
2. high-speed railway steel-concrete composite beam according to claim 1, it is characterised in that：The open steel box beam (1)
The steel pipe support (8) being fixedly connected with both sides inclined clapboard (6) is inside provided with, each described steel pipe support (8) is horizontal including one
Steel pipe (9) and two oblique steel pipes (10) positioned opposite being arranged on below horizontal steel pipe (9), the horizontal steel pipe (9) is horizontal
Across the openend for being arranged on open steel box beam (1), its two ends respectively be fixedly connected at the top of both sides inclined clapboard (6)；It is described oblique
It is fixedly connected with the middle part of horizontal steel pipe (9) to one end of steel pipe (10), the other end is fixedly connected with the bottom of inclined clapboard (6).
3. high-speed railway steel-concrete composite beam according to claim 2, it is characterised in that：On the horizonal base plate (3)
Several are arranged at intervals with the vertically arranged horizonal base plate ribs (11) in its upper surface.
4. the high-speed railway steel-concrete composite beam according to claim 1 or 2 or 3, it is characterised in that：The web (4)
Inwall on interval setting several web ribs (12) with the welding of its inwall.
5. the high-speed railway steel-concrete composite beam according to claim 1 or 2 or 3, it is characterised in that：The horizontal tail
The upper surface of plate (5) is arranged at intervals with along its length several WELDING STUDSs (13).
6. the high-speed railway steel-concrete composite beam according to Claims 2 or 3, it is characterised in that：The both sides inclined clapboard
(6) top is arranged with the mounting seat (14) for installing horizontal steel pipe (9) two ends.
7. the high-speed railway steel-concrete composite beam according to Claims 2 or 3, it is characterised in that：The both sides inclined clapboard
(6) bottom symmetrical is provided with the fixed seat (15) for installing oblique steel pipe (10) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611259962.4A CN106592404A (en) | 2016-12-30 | 2016-12-30 | Steel-concrete composite beam of high speed railway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611259962.4A CN106592404A (en) | 2016-12-30 | 2016-12-30 | Steel-concrete composite beam of high speed railway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106592404A true CN106592404A (en) | 2017-04-26 |
Family
ID=58581548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611259962.4A Pending CN106592404A (en) | 2016-12-30 | 2016-12-30 | Steel-concrete composite beam of high speed railway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106592404A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060073207A (en) * | 2004-12-24 | 2006-06-28 | 재단법인 포항산업과학연구원 | Girder of steel box girder type bridge |
| CN101775775A (en) * | 2010-01-28 | 2010-07-14 | 广东省公路勘察规划设计院有限公司 | Combined bridge with self-anti-cracking function and construction method thereof |
| CN102720120A (en) * | 2012-06-26 | 2012-10-10 | 天津城市建设学院 | Steel-concrete combined box beam |
| CN204530427U (en) * | 2014-12-16 | 2015-08-05 | 中铁第四勘察设计院集团有限公司 | A kind of cable stayed bridge being provided with multi-functional broad flange beam |
| CN105178166A (en) * | 2015-10-15 | 2015-12-23 | 上海市政工程设计研究总院（集团）有限公司 | Combined steel box beam bridge with transverse ribs |
| CN206438381U (en) * | 2016-12-30 | 2017-08-25 | 中铁第四勘察设计院集团有限公司 | high-speed railway steel-concrete combination beam |
-
2016
- 2016-12-30 CN CN201611259962.4A patent/CN106592404A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060073207A (en) * | 2004-12-24 | 2006-06-28 | 재단법인 포항산업과학연구원 | Girder of steel box girder type bridge |
| CN101775775A (en) * | 2010-01-28 | 2010-07-14 | 广东省公路勘察规划设计院有限公司 | Combined bridge with self-anti-cracking function and construction method thereof |
| CN102720120A (en) * | 2012-06-26 | 2012-10-10 | 天津城市建设学院 | Steel-concrete combined box beam |
| CN204530427U (en) * | 2014-12-16 | 2015-08-05 | 中铁第四勘察设计院集团有限公司 | A kind of cable stayed bridge being provided with multi-functional broad flange beam |
| CN105178166A (en) * | 2015-10-15 | 2015-12-23 | 上海市政工程设计研究总院（集团）有限公司 | Combined steel box beam bridge with transverse ribs |
| CN206438381U (en) * | 2016-12-30 | 2017-08-25 | 中铁第四勘察设计院集团有限公司 | high-speed railway steel-concrete combination beam |
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Application publication date: 20170426 |
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| RJ01 | Rejection of invention patent application after publication |