CN109371834A - The shear connections component of steel-concrete composite beam floorings - Google Patents
The shear connections component of steel-concrete composite beam floorings Download PDFInfo
- Publication number
- CN109371834A CN109371834A CN201811406271.1A CN201811406271A CN109371834A CN 109371834 A CN109371834 A CN 109371834A CN 201811406271 A CN201811406271 A CN 201811406271A CN 109371834 A CN109371834 A CN 109371834A
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- Prior art keywords
- reinforcing bar
- longitudinal reinforcement
- steel
- inclined reinforcing
- girder steel
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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
- 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 present invention discloses a kind of shear connections component of steel-concrete composite beam floorings, it is characterized by: the connecting elements includes girder steel, axial direction on the top flange of girder steel along girder steel is provided with multiple stiffening frames being equally spaced, the stiffening frame is by front end-plate, end plate and two pieces of side plate compositions, the connecting elements further includes two symmetrical longitudinal reinforcement reinforcing bars, and the two longitudinal reinforcement reinforcing bars are fixedly connected with all stiffening frames simultaneously, described two longitudinal reinforcement reinforcing bars are fixedly connected with the medial surface of two blocks of side plates by welding respectively, an inclined reinforcing bar group is additionally provided on longitudinal reinforcement reinforcing bar, each inclined reinforcing bar group matches with a stiffening frame, the inclined reinforcing bar group includes three pairs of inclined reinforcing bars, every a pair of inclined reinforcing bar is all symmetrically dispersed in the two of longitudinal reinforcement reinforcing bar Side, the inclined reinforcing bar are made of interconnecting piece interconnected and rake, have poured concrete layer on the top flange of the girder steel.
Description
Technical field
The present invention relates to the construction field that builds a bridge, especially a kind of shear connections of steel-concrete composite beam floorings
Component.
Background technique
The concrete position that steel-concrete floorings are connect with girder steel destruction caused by traffic heavy duty is commonplace,
Main cause is that the connection effect of the shear connections component such as floorings and WELDING STUDS is bad, so as to cause floorings sliding and shearing resistance
Pressure-bearing and rubbing action repeatedly occurs for connecting elements.Case history shows, the steel-concrete composite beam bridge floor at the top of WELDING STUDS
Plate position will appear different degrees of damage, and the destruction of bottom line can generate crack not of uniform size, traditional WELDING STUDS mechanics
Performance is poor, can no longer meet the shear connections needs of highway heavy duty bridge floor plate.Therefore need one kind that can solve now
The certainly method or apparatus of the above problem.
Summary of the invention
The present invention is to propose a kind of special shear connections component to solve above-mentioned deficiency present in the prior art,
The problem of its structure is simple, and processing technology is convenient, can improve the sliding problem and poor mechanical property of floorings and girder steel, and
The durability of steel-concrete combined structure floorings under heavily loaded environment can be improved.
The technical solution of the invention is as follows: a kind of shear connections component of steel-concrete composite beam floorings, feature
Be: the connecting elements includes girder steel 1, and the axial direction on the top flange of girder steel 1 along girder steel 1 is provided with multiple be equally spaced
Stiffening frame 2, the stiffening frame 2 is made of front end-plate 3, end plate 4 and two blocks of side plates 5, the connecting elements
Further include two symmetrical longitudinal reinforcement reinforcing bars 6, and the two longitudinal reinforcement reinforcing bars 6 simultaneously with all stiffening frames 2
It being fixedly connected, described two longitudinal reinforcement reinforcing bars 6 are fixedly connected with the medial surface of two blocks of side plates 5 by welding respectively,
Multiple inclined reinforcing bar groups, each inclined reinforcing bar group and 2 phase of stiffening frame are additionally provided on longitudinal reinforcement reinforcing bar 6
Match, the inclined reinforcing bar group includes three pairs of inclined reinforcing bars 7, and every a pair of inclined reinforcing bar 7 is all symmetrically dispersed in longitudinal reinforcement steel
The two sides of muscle 6, the inclined reinforcing bar 7 are made of interconnecting piece 8 interconnected and rake 9, wherein interconnecting piece 8 directly with longitudinal direction
Reinforced steel 6 is fixed, and rake 9 is then with longitudinal reinforcement reinforcing bar 6 at 30-45 ° of angle, while rake 9 is also and horizontal plane
At 9-12 ° of angle, concrete layer 10 is poured on the top flange of the girder steel 1, and the concrete layer 10 will be described
Stiffening frame 2, longitudinal reinforcement reinforcing bar 6 and inclined reinforcing bar 7 cladding completely are got up.
The diameter of the longitudinal reinforcement reinforcing bar 6 is at least 1.5 times of the diameter of inclined reinforcing bar 7.
The present invention compared with the existing technology, has the advantages that
The shear connections component of the steel-concrete composite beam floorings of this kind of structure type, it is reasonable in design, it can be more preferable
Girder steel is closely connect with concrete slab, and the rigidity of concrete slab Yu girder steel connecting portion can be improved, thus
The Local Cracking phenomenon on concrete bridge deck intralamellar part connecting elements periphery is controlled, while improving the power of steel-concrete composite beam
The durability of performance and floorings is learned, and indirectly reduces the maintenance cost of bridge.The processing technology of the component is simple simultaneously, can
Standardization processing is realized in factory, and cost is relatively low, can extensive utilization.
Detailed description of the invention
Fig. 1 is the main view of the embodiment of the present invention.
Fig. 2 is the top view of the embodiment of the present invention.
Fig. 3 is the lateral view of the embodiment of the present invention.
Specific embodiment
Below in conjunction with Detailed description of the invention a specific embodiment of the invention.It is as shown in Figure 1, Figure 2, Figure 3 shows: a kind of steel-coagulation
The shear connections component of beam bridge panel closes in local soil type, it includes girder steel 1, and the axial direction on the top flange of girder steel 1 along girder steel 1 is provided with
Multiple stiffening frames 2 being equally spaced, the stiffening frame 2 are made of front end-plate 3, end plate 4 and two blocks of side plates 5, institute
The connecting elements stated further includes two symmetrical longitudinal reinforcement reinforcing bars 6, and the two longitudinal reinforcement reinforcing bars 6 simultaneously with it is all
Stiffening frame 2 be fixedly connected, described two longitudinal reinforcement reinforcing bars 6 respectively with the medial surface of two blocks of side plates 5 by welding side
Formula is fixedly connected, and multiple inclined reinforcing bar groups are additionally provided on longitudinal reinforcement reinforcing bar 6, and each inclined reinforcing bar group is reinforced with one
Frame 2 matches, and the inclined reinforcing bar group includes three pairs of inclined reinforcing bars 7, and every a pair of inclined reinforcing bar 7 is all symmetrically dispersed in vertical
To the two sides of reinforced steel 6, the inclined reinforcing bar 7 is made of interconnecting piece 8 interconnected and rake 9, and wherein interconnecting piece 8 is straight
Connect fixed with longitudinal reinforcement reinforcing bar 6, and rake 9 is then with longitudinal reinforcement reinforcing bar 6 at 30-45 ° of angle, while rake 9 is also
With horizontal plane at 9-12 ° of angle, concrete layer 10, and the concrete layer 10 have been poured on the top flange of the girder steel 1
The stiffening frame 2, longitudinal reinforcement reinforcing bar 6 and inclined reinforcing bar 7 cladding completely are got up；The longitudinal reinforcement reinforcing bar 6
Diameter is at least 1.5 times of the diameter of inclined reinforcing bar 7.
The shear connections component of the steel-concrete composite beam floorings of the embodiment of the present invention, sets at the top flange of girder steel 1
It has set multiple groups and has reinforced shear resistant mechanism, each group of mechanism all includes a stiffening frame 2 and multipair inclined reinforcing bar 7, these inclination steel
Muscle is commonly connected on longitudinal reinforcement reinforcing bar 6, forms two sets of partly overlapping " plshy bone open " structures, this special structure can
Preferably closely to connect girder steel with concrete slab, and the rigid of concrete slab and girder steel connecting portion can be improved
Degree to control the Local Cracking phenomenon on concrete bridge deck intralamellar part connecting elements periphery, while improving steel-concrete combination
The mechanical property of beam and the durability of floorings, and reduce the maintenance cost of bridge.
Claims (2)
1. a kind of shear connections component of steel-concrete composite beam floorings, it is characterised in that: the connecting elements includes steel
Beam (1), the axial direction on the top flange of girder steel (1) along girder steel (1) is provided with multiple stiffening frames (2) being equally spaced, described
Stiffening frame (2) be made of front end-plate (3), end plate (4) and two pieces of side plates (5), the connecting elements further includes two
A symmetrical longitudinal reinforcement reinforcing bar (6), and the two longitudinal reinforcement reinforcing bars (6) are solid with all stiffening frames (2) simultaneously
Fixed connection, fixation connects described two longitudinal reinforcement reinforcing bars (6) by welding with the medial surface of two pieces of side plates (5) respectively
It connects, multiple inclined reinforcing bar groups, each inclined reinforcing bar group and a stiffening frame is additionally provided on longitudinal reinforcement reinforcing bar (6)
(2) match, the inclined reinforcing bar group includes three pairs of inclined reinforcing bars (7), and every a pair of inclined reinforcing bar (7) is all symmetrically dispersed in
The two sides of longitudinal reinforcement reinforcing bar (6), the inclined reinforcing bar (7) are made of interconnecting piece interconnected (8) and rake (9),
Middle interconnecting piece (8) is directly fixed with longitudinal reinforcement reinforcing bar (6), and rake (9) is then with longitudinal reinforcement reinforcing bar (6) at 30-45 °
Angle, while rake (9) has poured concrete on the top flange of the girder steel (1) also with horizontal plane at 9-12 ° of angle
Layer (10), and the concrete layer (10) is complete by the stiffening frame (2), longitudinal reinforcement reinforcing bar (6) and inclined reinforcing bar (7)
Cladding is got up.
2. the shear connections component of steel-concrete composite beam floorings according to claim 1, it is characterised in that: described
The diameter of longitudinal reinforcement reinforcing bar (6) be at least 1.5 times of diameter of inclined reinforcing bar (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811406271.1A CN109371834A (en) | 2018-11-23 | 2018-11-23 | The shear connections component of steel-concrete composite beam floorings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811406271.1A CN109371834A (en) | 2018-11-23 | 2018-11-23 | The shear connections component of steel-concrete composite beam floorings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109371834A true CN109371834A (en) | 2019-02-22 |
Family
ID=65383004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811406271.1A Withdrawn CN109371834A (en) | 2018-11-23 | 2018-11-23 | The shear connections component of steel-concrete composite beam floorings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109371834A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100684396B1 (en) * | 2006-04-06 | 2007-03-12 | 경기대학교 산학협력단 | Concrete-confined shear connector |
| CN102359061A (en) * | 2011-09-22 | 2012-02-22 | 江苏省交通科学研究院股份有限公司 | Shear connector of waveform steel plate and concrete |
| KR101275754B1 (en) * | 2012-08-27 | 2013-06-17 | 주식회사 우성디앤씨 | Psc girder with shear block, psc girder making method with shear block and bridge construction method using psc girder with shear block |
| CN103572839A (en) * | 2013-11-05 | 2014-02-12 | 南京工业大学 | Mixed shear connector |
| CN106223368A (en) * | 2016-08-30 | 2016-12-14 | 安徽建工集团有限公司 | Glass fibre prestressed anchor anchor structure, its charger and loading method |
-
2018
- 2018-11-23 CN CN201811406271.1A patent/CN109371834A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100684396B1 (en) * | 2006-04-06 | 2007-03-12 | 경기대학교 산학협력단 | Concrete-confined shear connector |
| CN102359061A (en) * | 2011-09-22 | 2012-02-22 | 江苏省交通科学研究院股份有限公司 | Shear connector of waveform steel plate and concrete |
| KR101275754B1 (en) * | 2012-08-27 | 2013-06-17 | 주식회사 우성디앤씨 | Psc girder with shear block, psc girder making method with shear block and bridge construction method using psc girder with shear block |
| CN103572839A (en) * | 2013-11-05 | 2014-02-12 | 南京工业大学 | Mixed shear connector |
| CN106223368A (en) * | 2016-08-30 | 2016-12-14 | 安徽建工集团有限公司 | Glass fibre prestressed anchor anchor structure, its charger and loading method |
Non-Patent Citations (3)
| Title |
|---|
| 向敏: "《桥梁工程(下)》", 31 August 2007, 中国铁道出版社 * |
| 胡夏闽: "欧洲规范4钢-混凝土组合梁设计方法(6)-剪力连接件", 《工业建筑》 * |
| 黄勇: "组合结构中两类新型剪力连接件的研究分析", 《贵州大学学报(自然科学版)》 * |
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Application publication date: 20190222 |
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| WW01 | Invention patent application withdrawn after publication |