CN203188112U - Steel-concrete rigid-connection combined beam - Google Patents
Steel-concrete rigid-connection combined beam Download PDFInfo
- Publication number
- CN203188112U CN203188112U CN 201320201639 CN201320201639U CN203188112U CN 203188112 U CN203188112 U CN 203188112U CN 201320201639 CN201320201639 CN 201320201639 CN 201320201639 U CN201320201639 U CN 201320201639U CN 203188112 U CN203188112 U CN 203188112U
- Authority
- CN
- China
- Prior art keywords
- concrete
- steel
- beam section
- section
- plate
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model discloses a steel-concrete rigid-connection combined beam. The steel-concrete rigid-connection combined beam comprises a steel box beam section and a concrete beam section fixedly connected with the steel box beam section, wherein a top plate, a base plate and a web plate, which are used for being fixedly connected with the concrete beam section, of the steel box beam section are of a double-wall-plate structure, concrete is poured inside the double-wall-plate structure, and a shearing force connector is arranged in the inner wall of the double-wall-plate structure in the transverse direction of the steel box beam section. The transmission of axial force, bending moment, torque moment and shearing moment generated by various loads is smooth and reliable, certain bearing safety capacity is provided under the load bearing function, rigidity transition is good, durability is good, anti-fatigue performance is good, and stress concentration is reduced.
Description
Technical field
The utility model relates to bridge engineering, particularly a kind of steel-concrete compound beam that is rigidly connected.
Background technology
Development along with the long-span bridge beam, steel work is widely used, in order to make structure stress more reasonable, the combining structure design of concrete and steel has appearred, and steel-concrete combining structure is owing to the advantage that can bring into play two kinds of materials well, be convenient to construct and reduce investment outlay be widely used.For steel-concrete combining structure, two kinds of steel, the concrete not link technique of concrete material structure are the core places.At present, steel-concrete combining structure is used in cable stayed bridge, arch bridge, the suspension bridge more, because the huge axial compression of effect such as suspension cable, main arch, main push-towing rope is arranged, and steel-concrete joint location stressed simple relatively clear and definite.And to steel-concrete combined bridge, the steel concrete joint of girder mainly is subjected to moment of flexure and shearing action, and moment of flexure has positive and negatively, and stressed complexity is again a time-varying system.
Therefore, because the requirement of joint link technique is higher, the transmission of the axle power that need guarantee various loads are produced, moment of flexure, moment of torsion, shearing square is smooth and easy reliably, certain bearing safety deposit is arranged under load action, and the rigidity transition is good, good endurance, anti-fatigue performance is good, reduces stress and concentrates.
The utility model content
In view of this, the purpose of this utility model is to provide a kind of steel-concrete compound beam that is rigidly connected, the transmission of the axle power of guaranteeing various loads are produced, moment of flexure, moment of torsion, shearing square is smooth and easy reliably, certain bearing safety deposit is arranged under load action, the rigidity transition is good, good endurance, anti-fatigue performance is good, reduces stress and concentrates.
Steel-concrete of the present utility model compound beam that is rigidly connected, comprise steel case beam section and the concrete beam section of fixedlying connected with steel case beam section, top board, base plate and web that described steel case beam section is used for fixedlying connected with the concrete beam section are the double-walled plated construction, and all built concrete in the double-walled plated construction, laterally be provided with shear connector at described double-walled plated construction inwall along steel case beam section;
Further, described shear connector is peg, and described peg evenly distributes along the double-walled plate is inboard;
Further, described steel case beam section and concrete beam section joint portion are provided with the bearing plate that adapts with steel case beam section cross section;
Further, be provided with stiffener in the described steel case beam section, be provided with the PBL shear plate with the corresponding connection of steel case beam section stiffener in the described concrete beam section;
Further, described PBL shear plate is steel plate and is provided with the circular hole that can run through reinforcing bar;
Further, circumferentially be provided with prestressed strand in the described concrete beam section;
Further, the short bundle of described prestressed strand is anchored on concrete diaphragm and the steel case beam diaphragm, and the long bundle of described prestressing tendon is anchored on the profile of tooth anchor block of the top board of diaphragm back rest section of concrete beam section and base plate;
The beneficial effects of the utility model: steel-concrete of the present utility model compound beam that is rigidly connected is provided with the diffusion that bearing plate is conducive to stress at steel, concrete joint surface; The top board that arranges in the bonding surface position and base plate and web are the double-walled plate with connector, are conducive to the transmission rigidity of structure and stress; The PBL shear plate is conducive to better transferring structure internal force, and the prestressed strand of setting can encircle sufficient compressive stress deposit by body, guarantees the safe and reliable of structure.Steel-concrete of the present utility model compound beam that is rigidly connected, the transmission of the axle power that various loads are produced, moment of flexure, moment of torsion, shearing square is smooth and easy reliably, and certain bearing safety deposit is arranged under load action, the rigidity transition is good, good endurance, anti-fatigue performance is good, reduces stress and concentrates.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described:
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Fig. 1 is structural representation of the present utility model; As shown in the figure: a kind of steel-concrete of present embodiment compound beam that is rigidly connected, comprise steel case beam section 2 and the concrete beam section 1 of fixedlying connected with steel case beam section 2, top board, base plate and web that described steel case beam section is used for fixedlying connected with the concrete beam section are the double-walled plated construction, and all built concrete in the double-walled plated construction, laterally be provided with shear connector at described double-walled plated construction inwall along steel case beam section; Steel case beam section 1 and concrete beam section 2 are for being rigidly connected to form continuous steel structure, the web of steel case beam section 2 is corresponding with the web of concrete beam section 2,2 base plate of steel case beam section is corresponding with top board and the base plate of concrete beam section 1 with top board, adopts the double-walled plated construction to be conducive to the effective transition of the rigidity of structure of case beam section 2 and concrete beam section 1 bonding station; Be horizontally arranged with shear connector along described double-walled plate inwall; Be used for bearing the longitudinal shear between concrete and the double-walled plate contact surface, and then strengthen the intensity of both arms plate, strengthen effective transition of the rigidity of structure of bonding station.
In the present embodiment, described shear connector is peg, also can reach the shear connector of same purpose and effect for other, described peg evenly distributes along the double-walled plate is inboard, peg can be welded in the double-walled plate, also can adopt other modes that can reach same purpose and effect, be convenient to operation, practical.
In the present embodiment, described steel case beam section 2 is provided with the bearing plate 3 that adapts with steel case beam section 2 cross sections with concrete beam section 1 joint portion; Steel case beam section 2 is provided with steel case beam section 2 cross sections with concrete beam section 1 joint portion and fits like a glove, and realizes that steel work relaxes diffusion to the stress of concrete structure.
In the present embodiment, be provided with stiffener in the described steel case beam section 1, be provided with the PBL shear plate 4 with the corresponding connection of steel case beam stiffener in the described concrete beam section 1; Suitably enlarge the web perforate to give full play to the effect of PBL shear connector, the smooth and easy transmission of implementation structure stress.
In the present embodiment, described PBL shear plate 4 is for steel plate and be provided with the circular hole that can run through reinforcing bar; Be used for running through the steel bundle, bear vertical shear and reinforcing bar and the concrete power of starting along steel plate according to concrete shearing resistance effect in the circular hole, but also the basis steel sheet pressurized born face transverse shearing force outward.Therefore, PBL shear plate 4 has the supporting capacity height, linear stage rigidity height, and failure stage ductility is good, can transmit moment of flexure and can bear shearing again, can fully guarantee Structure Safety for Bridge.
In the present embodiment, be provided with prestressed strand in the described concrete beam; Enough compressive stress are provided, guarantee that fully cross section top board and base plate have the pressure deposit, fully guarantee under the limit of bearing capacity, positive hogging moment has deposit, guarantee under positive hogging moment effect, the junction surface of steel case beam section 2 and concrete beam section 1 the crack can not occur, further increases bearing capacity and the firmness of bridge, guarantees Structure Safety for Bridge
In the present embodiment, the short bundle of described prestressed strand is anchored on concrete diaphragm and the steel case beam diaphragm, and the long bundle of described prestressing tendon is anchored on the profile of tooth anchor block of the top board of concrete diaphragm back rest section and base plate; Be that anchoring is more stable, more firm, strengthen the stressed degree of balance, improve the cracking resistance of structure.
Present embodiment pass through top board with steel case beam section 2 ends, base plate and web are made the double-walled plate, top board with the concrete of filling and next-door neighbour's concrete box girder section, base plate and web are by the PBL shear connector, prestressed reinforcement, plain barss etc. are well connected, extend slightly forward again it is connected with the concrete diaphragm, the short bundle of prestressing force reinforcing bar is anchored on the diaphragm of the diaphragm of concrete box girder and steel case beam, the long bundle of prestressing force reinforcing bar, when under satisfying ultimate limit state, safety stock being arranged, the transmission of shearing also should have safety stock, solves the problem that stress is concentrated in the CONSTRUCTED SPECIFICATION.
Explanation is at last, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (7)
1. steel-concrete compound beam that is rigidly connected, it is characterized in that: comprise steel case beam section (2) and the concrete beam section (1) of fixedlying connected with steel case beam section (2), top board, base plate and web that described steel case beam section is used for fixedlying connected with the concrete beam section are the double-walled plated construction, and all built concrete in the double-walled plated construction, laterally be provided with shear connector at described double-walled plated construction inwall along steel case beam section.
2. steel-concrete according to claim 1 compound beam that is rigidly connected, it is characterized in that: described shear connector is peg, described peg evenly distributes along the double-walled plate is inboard.
3. steel-concrete according to claim 2 compound beam that is rigidly connected, it is characterized in that: described steel case beam section (2) is provided with the bearing plate (3) that adapts with steel case beam section (2) cross section with concrete beam section (1) joint portion.
4. steel-concrete according to claim 3 compound beam that is rigidly connected is characterized in that: be provided with stiffener in the described steel case beam section (2), be provided with the PBL shear plate (4) with the corresponding connection of steel case beam section (2) stiffener in the described concrete beam section (1).
5. steel-concrete according to claim 4 compound beam that is rigidly connected, it is characterized in that: described PBL shear plate (4) is for steel plate and be provided with the circular hole that can run through reinforcing bar.
6. steel-concrete according to claim 5 compound beam that is rigidly connected is characterized in that: circumferentially be provided with prestressed strand in the described concrete beam section (1).
7. steel-concrete according to claim 6 compound beam that is rigidly connected, it is characterized in that: the short bundle of described prestressed strand is anchored on concrete diaphragm (6) and the steel case beam diaphragm, and the long bundle of described prestressing tendon is anchored on the profile of tooth anchor block of the top board of diaphragm back rest section of concrete beam section (1) and base plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320201639 CN203188112U (en) | 2013-04-19 | 2013-04-19 | Steel-concrete rigid-connection combined beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320201639 CN203188112U (en) | 2013-04-19 | 2013-04-19 | Steel-concrete rigid-connection combined beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203188112U true CN203188112U (en) | 2013-09-11 |
Family
ID=49104982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320201639 Expired - Lifetime CN203188112U (en) | 2013-04-19 | 2013-04-19 | Steel-concrete rigid-connection combined beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203188112U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104264587A (en) * | 2014-09-22 | 2015-01-07 | 中铁四局集团第二工程有限公司 | Mounting method of PBL (perfobond leiste) shear keys inside steel box girder for reinforced concrete composite segment |
| CN104674647A (en) * | 2015-02-05 | 2015-06-03 | 中铁大桥局集团武汉桥梁科学研究院有限公司 | Steel-concrete combination structure for hybrid girder bridge |
| CN105735107A (en) * | 2016-04-27 | 2016-07-06 | 长安大学 | Pier beam consolidation structure for steel plate composite beam bridge |
| CN106758877A (en) * | 2016-12-29 | 2017-05-31 | 天津市交通科学研究院 | The maintenance reinforcement method of bridge steel and concrete mixing section |
| CN110878513A (en) * | 2019-11-19 | 2020-03-13 | 辽宁省城乡市政工程集团有限责任公司 | A kind of prefabricated prestressed concrete beam and steel-concrete composite beam splicing bridge and construction method |
-
2013
- 2013-04-19 CN CN 201320201639 patent/CN203188112U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104264587A (en) * | 2014-09-22 | 2015-01-07 | 中铁四局集团第二工程有限公司 | Mounting method of PBL (perfobond leiste) shear keys inside steel box girder for reinforced concrete composite segment |
| CN104264587B (en) * | 2014-09-22 | 2016-05-04 | 中铁四局集团第二工程有限公司 | A kind of installation method for PBL shear connector in the steel case beam of steel reinforced concrete adapter section |
| CN104674647A (en) * | 2015-02-05 | 2015-06-03 | 中铁大桥局集团武汉桥梁科学研究院有限公司 | Steel-concrete combination structure for hybrid girder bridge |
| CN105735107A (en) * | 2016-04-27 | 2016-07-06 | 长安大学 | Pier beam consolidation structure for steel plate composite beam bridge |
| CN106758877A (en) * | 2016-12-29 | 2017-05-31 | 天津市交通科学研究院 | The maintenance reinforcement method of bridge steel and concrete mixing section |
| CN110878513A (en) * | 2019-11-19 | 2020-03-13 | 辽宁省城乡市政工程集团有限责任公司 | A kind of prefabricated prestressed concrete beam and steel-concrete composite beam splicing bridge and construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204919821U (en) | Novel height bearing capacity built -in fitting that shears | |
| CN203188112U (en) | Steel-concrete rigid-connection combined beam | |
| CN103074959B (en) | A kind of steel plate high-strength concrete composite coupling beams | |
| CN102561172A (en) | Celled hybrid beam junction with composite connectors | |
| CN102943434A (en) | Semi-assembly bamboo-concrete composite bridge | |
| CN209428931U (en) | Lightweight steel-coarse aggregate Reactive Powder Concrete combined beam structure | |
| CN110685219A (en) | Suspension bridge sharing anchorage | |
| CN202990196U (en) | Partially prestressed prefabricated thin plate | |
| CN103306428A (en) | Built-in heavy load beam member of novel composite truss | |
| CN207793839U (en) | A kind of butterfly shape steel web steel reinforced concrete combination main beam structure | |
| CN208183951U (en) | A kind of structural slab containing bamboo cane | |
| CN207260437U (en) | Concrete combination column | |
| CN108374318A (en) | A kind of steel-ultra-high performance concrete adapter section and preparation method thereof | |
| CN202829323U (en) | Two multi-span precast prestressed crane beam | |
| CN203514638U (en) | Built-in heavy-load beam member of novel composite truss | |
| CN202416173U (en) | Wide girder bridge floor system structure with horizontal K support | |
| CN202466839U (en) | Reinforced concrete frame beam cable rib configuring structure | |
| CN201908253U (en) | Grid chamber combined girder joint part with composite connecting piece | |
| CN216615459U (en) | Adopt reinforced (rfd) hogging moment support joint structure of UHPC | |
| CN204825614U (en) | Concrete beam - wave form steel web beam combination continuous bridge | |
| CN104264574B (en) | Mid and minor spans precast concrete beam bridge prestressing tendon structure and method to set up thereof | |
| CN201265200Y (en) | Light polypropylene fiber concrete composite board | |
| CN203475642U (en) | Coupled shear wall combining replaceable steel coupling beam and dual-layer steel plate high-strength concrete | |
| CN211172612U (en) | Double T-plate bolt connection structure | |
| CN102776828A (en) | Irregular-shaped precast beam used for bridges |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130911 |
|
| CX01 | Expiry of patent term |