CN109423951A - A kind of steel bridge and its shearing resistance composite structure - Google Patents
A kind of steel bridge and its shearing resistance composite structure Download PDFInfo
- Publication number
- CN109423951A CN109423951A CN201710738546.0A CN201710738546A CN109423951A CN 109423951 A CN109423951 A CN 109423951A CN 201710738546 A CN201710738546 A CN 201710738546A CN 109423951 A CN109423951 A CN 109423951A
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- CN
- China
- Prior art keywords
- shear
- resisting board
- shearing resistance
- shear resisting
- construction
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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
-
- 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
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
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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 kind of steel bridge and its shearing resistance composite structures, including Formwork Support for External structure and fishbone shear connector, the fishbone shear connector includes the first shear resisting board and the second shear resisting board, it is connected in the middle part of one end of first shear resisting board and the second shear resisting board, and distribution forms fishbone shear connector along longitudinal direction.By so set, between the first shear resisting board and the second shear resisting board of shear connector formed a shearing slot, help to improve resist shear ability.Simultaneously, Formwork Support for External structure uses precast assembly technology, at the construction field (site), High-strength anchor bolt is passed through to the preformed hole of special angle steel, and fixation is tightened with high-strength bolt-nut, the splicing of support construction truss is completed with this, precast spliced truss structure can reduce self weight, the advantages that having convenient for construction, improving construction quality.
Description
Technical field
The present invention relates to technical field of civil engineering, in particular to composite structure is reinforced in the shearing resistance of a kind of steel bridge.
Background technique
Shear connector is the important component of shearing resistance in steel-concrete combined structure, and effect is effectively transmitted suffered by steel bridge
The horizontal shear arrived prevents the mutually sliding and separation of both interfaces level, makes the biggish steel construction of elastic modulus difference and mix
Xtah Crude Clay structure forms an entirety and works together.
Many countries have studied a variety of shearing key apparatus and use in structure combination beam, property of the different shear connectors to bridge
Difference can be influenced, existing shear connector mostly uses traditional weldering nail type shear connector or PBL shear connector, but due to traditional shear connector
Stress area of section it is smaller so that the shearing resistance bearing value of traditional shear connector reduces, the utilization rate of material is lower.
Truss is a kind of to be primarily subjected to axial direction by welding, riveting or bolted support beam structure, truss member
Pulling force or pressure save material than solid web girder when span is larger to make full use of the intensity of material, mitigate self weight and increase
Rigidity.
In recent years, the application of the popularity due to advanced technology in fabricated construction, fabricated construction starts to get rid of
Low ebb is gradually increasing.And fabricated construction has industrialized level high, is convenient for winter construction, reduces construction site workload, subtracts
The advantages that few material consumption, reduction dust from construction sites and building waste.Meanwhile being also beneficial to realize and improving construction quality, raising is applied
Work efficiency rate reduces construction cost, realizes energy-saving and emission-reduction and protects the purpose of environment.
Summary of the invention
The object of the present invention is to provide a kind of novel shear connectors, can effectively improve steel-concrete combined structure
Shear resistance.
The present invention solves scheme used by its technical problem are as follows: a kind of shearing resistance composite structure of bridge is provided, including under
The Formwork Support for External structure in portion and the fishbone shear connector on top, the shear connector include the first shear resisting board and the second shear resisting board,
Be connected in the middle part of first shear resisting board one end and the second shear resisting board, be distributed the shear connector for forming fishbone along longitudinal direction with this, then with being welded
Fishbone shear connector solid welding portion on the support structure.Bottom bracing structure is made of truss element connection combination, truss element
With truss brace, vertical bar of truss, chord member of truss.Herein, use special angle steel as chord member of truss, truss element is right angle three
Angular truss element, truss brace are the bevel edge of right angled triangle, and vertical bar of truss is the right-angle side of right angled triangle, truss string
Bar is triangle base.According to the above arrangement rod piece, then spliced again with High-strength anchor bolt.The truss angle steel with
Upper and lower floorings are connected, and will have the angle steel of High-strength anchor bolt preformed hole chimeric with upper and lower floorings, then by high-strength anchoring spiral shell
Bolt is then passed through the steel plate of High-strength anchor bolt preformed hole by the angle steel containing High-strength anchor bolt preformed hole, and with high-strength anchor
Gu nut tightens fixation, to realize the splicing of truss Yu upper and lower floorings.
Preferably, the one the second shear resisting boards are connected and are uniformly distributed along longitudinal direction, and are connected two-by-two by welding, the first shear resisting board
And second angle between shear resisting board be 30 ° -150 °.
As described above, the shearing resistance composite structure of bridge provided by the present invention has the advantages that
1. can effectively improve the shear resistance of steel-concrete combined structure by novel shear connector, give full play to steel-
The efficiency of concrete combined structure can be such that steel construction is more effectively combined together with concrete structure, thus improve this
The binding ability of two kinds of materials.
What 2. the novel shear connector in the present invention was made of shearing key unit, shearing key unit be by the first shear resisting board and
Second shear resisting board is combined into herringbone structure, and along support construction genesis analysis, so that it is new that similar fish bone well is integrally formed
Type shear connector, compared with traditional shear connector, which increases forced area, to improve the shear resistance of shear connector.
3. bottom bracing structure is truss structure, using prefabrication, construction site is assembled, has industrialized level height,
Convenient for winter construction, the advantages that reducing construction site wet construction amount, reduce material consumption, reduce dust from construction sites and building waste.
Detailed description of the invention
In order to better illustrate the present invention, embodiments of the present invention will be simply introduced below, it is certainly, several below
It is one embodiment of the present of invention in width figure.
Fig. 1 is overall structure diagram provided by the present invention；
Fig. 2 is the integrally-built left view of the present invention；
Fig. 3 is the integrally-built top view of the present invention；
Fig. 4 is the integrally-built front view of the present invention.
Wherein, in figure:
First shear resisting board -1；Second shear resisting board -2；Vertical bar of truss -3；Truss brace -4；Chord member of truss -5；Formwork Support for External
Structure -6；High-strength anchor bolt -7；High-strength anchor bolt -8；Upper floorings -9；Lower floorings -10；Special angle steel -11；Shearing
Slot -12.
Specific embodiment
For a better understanding of the present invention, embodiments of the present invention are illustrated by specific specific example now, these are attached
Figure is only that simplified schematic diagram does not have technical essential meaning with schematically illustrate basic structure of the invention, not to this
Invention imposes any restrictions.
With reference to attached drawing, figure is a kind of overall structure diagram of specific embodiment provided by the present invention.In the present invention
In a kind of provided specific embodiment, the shearing resistance composite structure of bridge mainly includes that Formwork Support for External structure and fishbone are cut
Power key.
Wherein, Formwork Support for External structure is mainly used for bearing the primary load of bridge, such as pressure and pulling force etc..In this hair
In bright, we select precast spliced truss structure to Formwork Support for External structure 6, are prefabricated in the factory reserved containing High-strength anchor bolt
The upper floorings 9 in hole 9 and lower floorings 10, at the construction field (site), by High-strength anchor bolt 8 by being reserved containing High-strength anchor bolt
The angle steel in hole is then passed through the steel plate of High-strength anchor bolt preformed hole, and tightens fixation with high-strength bolt-nut.Support construction 6
Truss is made of truss element connection combination, and truss brace 4 is the bevel edge of right angled triangle, and vertical bar of truss 3 is right angle trigonometry
The right-angle side of shape, chord member of truss 5 are triangle base, according to such arrangement rod piece, and are spliced with high-strength bolt-nut 7,
The on-site consolidation of entire support construction 6 is completed above, finally, carrying out frame mould casting concrete to upper floorings 9 can be completed.This
Locate the precast assembly to be technically characterized in that, is assembled by special angle steel 11 with upper and lower floorings inserted type, realize fast Speed Pinyin
Dress.
Fishbone shear connector is also key of the invention, is capable of the shear behavior of significantly lift structure.Shear connector is general
It is arranged on upper floorings, can be welded with support construction 6.The primary structure of shear connector includes the first shear resisting board 1 and the second shearing resistance
Plate 2.It is connected in the middle part of first shear resisting board, 1 one end and the second shear resisting board 2, fishbone is formed along 6 genesis analysis of support construction with this
Shear connector, with the solid welding of electric weld handle shear connector on the top of upper floorings 9.
In this example, the first shear resisting board 1 and the second shear resisting board 2 connection angle be 90 °, shear resisting board with a thickness of
1.5cm, height 5cm, length 15cm, actual angle may be configured as 30 ° -150 °, and actual (real) thickness can be set as 1cm-5cm,
Actual height can be set as 5cm-10cm, and physical length can be set as 10cm-15cm, further increase shear resistance.
In this way, shearing resistance composite structure provided in the present invention, a shearing slot is formed between two shear resisting boards, is conducive to show
Being fitted into for pouring concrete, helps to improve the ability for resisting shearing.Meanwhile Formwork Support for External structure 6 is by using prefabrication,
Construction site is assembled, and inserted type package technique is conducive to rapid construction and stable structure.There is the present invention extensive engineering to answer
With can be adapted for different kinds of railways bridge and highway bridge.
It is described the prefered embodiments of the present invention in detail above in conjunction with attached drawing, but the present invention is not limited to above-mentioned implementations
Detail in mode can carry out technical solution of the present invention a variety of simple within the scope of the technical concept of the present invention
Modification, these simple variants all belong to the scope of protection of the present invention.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (4)
1. a kind of shearing resistance composite structure of bridge, the shear connector including Formwork Support for External structure (6) and fishbone, feature exist
In the shear connector includes the first shear resisting board (1) and the second shear resisting board (2), and the first shear resisting board (1) and the second shear resisting board (2) are logical
It crosses welding to be connected with each other, be arranged in the vertical direction, to form class fishbone shearing resistance composite structure.
2. shearing resistance composite structure according to claim 1, it is characterised in that the support construction (6) is prefabrication splicing
Truss structure, it is chimeric with upper and lower floorings by special angle steel (12), fixation is connected using High-strength anchor bolt.
3. shearing resistance composite structure according to claim 1, which is characterized in that first shear resisting board (1) and the second shearing resistance
The angle being connected between plate (2) is 30 ° -150 °, and thickness can be set as 1cm-5cm, can highly be set as 5cm-10cm, and physical length can
It is set as 10cm-15cm.
4. a kind of steel bridge, including steel bridge and the shearing resistance composite structure being set on the gantry, which is characterized in that the shearing resistance group
Close the described in any item shearing resistance composite structures of 1-3 that structure is claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710738546.0A CN109423951A (en) | 2017-08-22 | 2017-08-22 | A kind of steel bridge and its shearing resistance composite structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710738546.0A CN109423951A (en) | 2017-08-22 | 2017-08-22 | A kind of steel bridge and its shearing resistance composite structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109423951A true CN109423951A (en) | 2019-03-05 |
Family
ID=65501474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710738546.0A Pending CN109423951A (en) | 2017-08-22 | 2017-08-22 | A kind of steel bridge and its shearing resistance composite structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109423951A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114991318A (en) * | 2022-06-13 | 2022-09-02 | 中国化学工程第十一建设有限公司 | Connecting device, steel concrete structure and steel concrete structure installation method |
-
2017
- 2017-08-22 CN CN201710738546.0A patent/CN109423951A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114991318A (en) * | 2022-06-13 | 2022-09-02 | 中国化学工程第十一建设有限公司 | Connecting device, steel concrete structure and steel concrete structure installation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190305 |
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| WD01 | Invention patent application deemed withdrawn after publication |