CN205223826U - Steel - concrete joint construction suitable for cable -stay bridge composite beam - Google Patents
Steel - concrete joint construction suitable for cable -stay bridge composite beam Download PDFInfo
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- CN205223826U CN205223826U CN201520956230.5U CN201520956230U CN205223826U CN 205223826 U CN205223826 U CN 205223826U CN 201520956230 U CN201520956230 U CN 201520956230U CN 205223826 U CN205223826 U CN 205223826U
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Abstract
Steel - concrete joint construction suitable for cable -stay bridge composite beam to realize to mix the girder iron girder, and the concrete girder between the smooth -going transition of rigidity, guarantee to connect transition joint's safe and reliable. Including the connection transition joint who connects I -steel girder, rectangle concrete girder. Connect the continuous structure that transition joint comprises girder steel changeover portion, steel reinforced concrete combination section and concrete beam changeover portion. Girder steel changeover portion and the welding of I -steel girder, steel reinforced concrete combine section and girder steel changeover portion welded steel case, and nailed joint spare is welded in the setting of steel incasement portion makes steel case and concrete form joint atress, and steel case tail end sets up the pressure -bearing steel sheet. The steel reinforced concrete combines section and concrete beam changeover portion to form and is connected through setting up perforated panel connecting piece on the pressure -bearing steel sheet, and the concrete beam changeover portion is connected in the nailed joint spare formation of welding that rectangle concrete girder pushed up bottom surface and side through the setting with rectangle concrete girder, and vertical prestressing force strand of rectangle concrete girder passes the anchor of concrete beam changeover portion on the pressure -bearing steel sheet.
Description
Technical field
Utility model relates to civil construction project, the connecting structure particularly between a kind of cable stayed bridge hybrid beam girder steel work and concrete structure.
Background technology
Some construction works, particularly bridge engineering, owing to needing the load of transmission very huge, the connecting structure between its steel work and concrete structure often becomes technological difficulties.Large span hybrid beam cable stayed bridge toughened internal stress is bridge key constructs, and the static(al) supporting capacity of its structure and anti-fatigue performance are directly connected to safety and the durability of bridge.
In connecting structure form between current hybrid beam girder Steel concrete, have and adopt pressure-bearing mode directly to transmit load, but there is stiffness transition irregularity and to be not too applicable to mating face may the situation of tension; Have and adopt the weldering nail shear connector such as connector, perforated plate connector to pass mode of cutting to transmit load, there is the not too uniform situation of stress distribution.When steel girder adopts I shape section, concrete girder adopts rectangular cross section, two kinds of girder forms carry out transition by the design of steel-concrete hybrid juction, how to ensure that this position beam stress transmission is reliable, rigidity even along transition, concrete and girder steel in conjunction with closely knit be the key point designed.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of steel-concrete connecting structure being applicable to cable stayed bridge hybrid beam, to realize the smoothly transition mixing rigidity between joist steel girder and concrete girder, guarantees to connect the safe and reliable of transit joint.
It is as follows that the utility model solves the technical scheme that its technical problem adopts:
The steel-concrete connecting structure being applicable to cable stayed bridge hybrid beam of the present utility model, comprise the connection transit joint connecting i iron girder, Rectangular Concrete girder, it is characterized in that: the continuous structure that described connection transit joint is made up of girder steel changeover portion, toughened internal stress and concrete beam changeover portion; Girder steel changeover portion and i iron Main Girder Welding, the steel case that toughened internal stress welds with girder steel changeover portion, steel case inside arranges weldering nail connector makes steel case and concrete form coaction, and steel case tail end arranges pressure-bearing steel plate; Toughened internal stress and concrete beam changeover portion are formed by the perforated plate connector be arranged on pressure-bearing steel plate and are connected, concrete beam changeover portion and Rectangular Concrete girder are followed closely connector by the weldering being arranged on bottom surface, Rectangular Concrete girder top and side and are formed and be connected, and the longitudinal prestressing steel bundle of Rectangular Concrete girder is anchored on pressure-bearing steel plate through concrete beam changeover portion.
The beneficial effects of the utility model are, the connection transit joint formed by girder steel changeover portion, toughened internal stress and concrete beam changeover portion, achieves the smoothly transition of i iron girder, Rectangular Concrete girder two kinds of girder pattern rigidity; Except i iron girder roof and floor and web directly transmit load to except Rectangular Concrete main beam structure in pressure-bearing mode by end socket end plate, also transmitting load between Steel concrete by crossing reinforcing bar in weldering nail connector, perforated plate connector and hole to pass the mode of cutting, making connecting structure stress distribution more even; Add the precompressed effect of prestressed strand, ensure that the mating face of steel work and concrete structure is in pressured state all the time, add the safety and reliability of Steel concrete connecting structure.
Accompanying drawing explanation
This manual comprises following five width accompanying drawings:
Fig. 1 is the floor map that the utility model is applicable to the steel-concrete connecting structure of cable stayed bridge hybrid beam;
Fig. 2 is the elevational schematic view that the utility model is applicable to the steel-concrete connecting structure of cable stayed bridge hybrid beam;
Fig. 3 is the sectional view along A-A line in Fig. 2;
Fig. 4 is the sectional view along B-B line in Fig. 2;
Fig. 5 is the sectional view along C-C line in Fig. 2;
Component name shown in figure and the mark with correspondence: i iron girder 10, Rectangular Concrete girder 20, longitudinal prestressing steel bundle 21, girder steel changeover portion L1, roof and floor 31, web 32, toughened internal stress L2, pressure-bearing steel plate 41, steel case 42, concrete beam changeover portion L3.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Referring to figs. 1 through Fig. 5, the steel-concrete connecting structure being applicable to cable stayed bridge hybrid beam of the present utility model, comprises the connection transit joint connecting i iron girder 10, Rectangular Concrete girder 20.Described connection transit joint comprises the continuous structure be made up of girder steel changeover portion L1, toughened internal stress L2 and concrete beam changeover portion L3, can realize the smoothly transition of i iron girder 10, Rectangular Concrete girder 20 two kinds of girder pattern rigidity.Girder steel changeover portion L1 welds with i iron girder 10, the steel case 42 that toughened internal stress L2 welds with girder steel changeover portion L1, and steel case 42 internal welding nail connector makes steel case 42 and concrete form coaction, and steel case 42 tail end arranges pressure-bearing steel plate 41.Toughened internal stress L2 and concrete beam changeover portion L3 are formed by the perforated plate connector be arranged on pressure-bearing steel plate 41 and are connected, and concrete beam changeover portion L3 and Rectangular Concrete girder 20 push up bottom surface and side weldering by being arranged on Rectangular Concrete girder 20 is followed closely connector and formed and be connected.The longitudinal prestressing steel bundle 21 of Rectangular Concrete girder 20 is anchored on pressure-bearing steel plate 41 through concrete beam changeover portion L3, by the precompressed effect of prestressed strand 21, all the time ensure that the mating face of steel work and concrete structure is in pressured state, increase, the safety and reliability of Steel concrete connecting structure.
With reference to Fig. 1, Fig. 3 and Fig. 4, described girder steel changeover portion L1 comprises roof and floor 31 and web (32), roof and floor 31 is widened to steel case 42 gradual change by i iron girder 10 termination, and web 32 is positioned at the both lateral sides of roof and floor 31, namely by the meridosternous of i iron girder 10 excessively to two web.
The above the utility model that just explains through diagrams is applicable to some principles of the steel-concrete connecting structure of cable stayed bridge hybrid beam, be not the utility model to be confined to shown in and in described concrete structure and the scope of application, therefore every corresponding modify of being likely utilized and equivalent, all belong to the scope of the claims that the utility model is applied for.
Claims (2)
1. be applicable to the steel-concrete connecting structure of cable stayed bridge hybrid beam, comprise the connection transit joint connecting i iron girder (10), Rectangular Concrete girder (20), it is characterized in that: the continuous structure that described connection transit joint is made up of girder steel changeover portion (L1), toughened internal stress (L2) and concrete beam changeover portion (L3); Girder steel changeover portion (L1) welds with i iron girder (10), the steel case (42) that toughened internal stress (L2) welds with girder steel changeover portion (L1), steel case (42) internal welding nail connector makes steel case (42) and concrete form coaction, and steel case (42) tail end arranges pressure-bearing steel plate (41); Toughened internal stress (L2) and concrete beam changeover portion (L3) are formed by the perforated plate connector be arranged on pressure-bearing steel plate (41) and are connected, concrete beam changeover portion (L3) and Rectangular Concrete girder (20) push up bottom surface and side weldering by being arranged on Rectangular Concrete girder (20) is followed closely connector and is formed and be connected, and the longitudinal prestressing steel bundle (21) of Rectangular Concrete girder (20) is anchored on pressure-bearing steel plate (41) through concrete beam changeover portion (L3).
2. be applicable to the steel-concrete connecting structure of cable stayed bridge hybrid beam as claimed in claim 1, it is characterized in that: described girder steel changeover portion (L1) comprises roof and floor (31) and web (32), roof and floor (31) is widened to steel case (42) gradual change by i iron girder (10) termination, and web (32) is positioned at the both lateral sides of roof and floor (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520956230.5U CN205223826U (en) | 2015-11-26 | 2015-11-26 | Steel - concrete joint construction suitable for cable -stay bridge composite beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520956230.5U CN205223826U (en) | 2015-11-26 | 2015-11-26 | Steel - concrete joint construction suitable for cable -stay bridge composite beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205223826U true CN205223826U (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520956230.5U Active CN205223826U (en) | 2015-11-26 | 2015-11-26 | Steel - concrete joint construction suitable for cable -stay bridge composite beam |
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| CN (1) | CN205223826U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108755391A (en) * | 2018-07-26 | 2018-11-06 | 中铁大桥勘测设计院集团有限公司 | A kind of main beam structure and bridge |
| CN110468709A (en) * | 2019-08-16 | 2019-11-19 | 柳州欧维姆机械股份有限公司 | A kind of cable-stayed bridge segmentation guy system and its fabrication and installation method with prestressing force cable saddle structure |
-
2015
- 2015-11-26 CN CN201520956230.5U patent/CN205223826U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108755391A (en) * | 2018-07-26 | 2018-11-06 | 中铁大桥勘测设计院集团有限公司 | A kind of main beam structure and bridge |
| CN110468709A (en) * | 2019-08-16 | 2019-11-19 | 柳州欧维姆机械股份有限公司 | A kind of cable-stayed bridge segmentation guy system and its fabrication and installation method with prestressing force cable saddle structure |
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| C14 | Grant of patent or utility model | ||
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Address after: 610000 7-10 Floor, Block B, Building No. 4, 200 Tianfu Fifth Street, Chengdu High-tech Zone, Sichuan Province Patentee after: Sichuan Highway Planning, Survey and Design Research Institute Co., Ltd. Address before: 610031 No. 1 Hengjie, Wuhou Temple, Chengdu City, Sichuan Province Patentee before: Sichuan Department of Transportation Highway Planning, Prospecting and Design Research Institute |