CN209941903U - Semi-rigid folded plate type shear connector - Google Patents
Semi-rigid folded plate type shear connector Download PDFInfo
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- CN209941903U CN209941903U CN201920012628.1U CN201920012628U CN209941903U CN 209941903 U CN209941903 U CN 209941903U CN 201920012628 U CN201920012628 U CN 201920012628U CN 209941903 U CN209941903 U CN 209941903U
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- shear connector
- semi
- web
- slotted hole
- rigid
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Abstract
The utility model discloses a semi-rigid folded plate formula shear connector, including the web, the web is formed by connecting in order a plurality of folded plates, and a plurality of folded plates are the wave rugosity, has all opened the slotted hole on every folded plate, and a plurality of equidistant interval arrangements of slotted hole and center line lie in a straight line, and center line is all perpendicular with the major axis of every slotted hole, and web wherein one side still is connected with the flange board perpendicularly, and the flange board is perpendicular with the slotted hole major axis. The utility model provides a shear connector rigidity, intensity that exist can not satisfy the problem that the requirement easily takes place deformation among the prior art.
Description
Technical Field
The utility model belongs to the technical field of building engineering, concretely relates to semi-rigid folded plate formula shear connector.
Background
The shear connector is a key link for combining the steel beam and the precast concrete composite floor slab together to work together, plays a decisive role in the overall performance of the connection of the precast concrete composite floor slab, the cast-in-place concrete floor slab and the steel beam, and is an important means for ensuring the overall common stress and the coordinated deformation of the precast concrete composite floor slab and the cast-in-place concrete floor slab. Generally, the shear connector mainly functions as two: the device is used for bearing and transmitting the shearing force between the steel beam and the precast concrete slab; and the second is used for resisting the lifting force between the precast concrete plate and the steel beam. Shear connectors which are commonly used at present are divided into rigid connections and flexible connections, which have advantages, but have problems respectively, and the selection of the shear connectors is very important. The main characteristics of rigid shear connectors are high shear strength, but relatively high stress concentrations are induced in the surrounding concrete, and the structure will break immediately after the bearing capacity reaches the ultimate strength, which directly results in the concrete being crushed or the shear failure of the connector. The rigid shear connector mainly comprises: u-shaped connecting piece, 21274, square steel connecting piece, etc.
The main characteristic of the flexible shear connector is that ductile failure generally occurs, and the flexible shear connector has a certain protection effect on the structure, so the connector is more preferably adopted in engineering practice. When the floor system bears excessive load, certain displacement occurs at the joint of the floor and the steel beam, but the shear strength of the floor and the steel beam cannot be reduced immediately, and the shear force in the structure can be redistributed by utilizing the ductility of the flexible shear connector. The flexible shear connector mainly comprises: headed studs, diagonal reinforcing bars, ring reinforcing bars, channel steel and the like.
The stud is widely applied to the current building system because of the convenience of construction. The main problems with pegs are: when an effect acts on the structure, the stud connecting piece moves together with the steel beam, the load is transmitted to the root of the stud through the welding seam of the stud, the root of the stud deforms greatly, the stud shear-resistant connecting piece is subjected to the combined action of various forces, and under the action, the pressure borne by the root of the stud reaches the maximum value. Thus, a common form of failure is that the concrete at the root ahead of the peg is locally crushed or split, resulting in a failure of the overall structure. In addition, the connecting member is important for the stress performance of the fabricated floor, and generally, the connecting member needs to have good deformability in addition to strength and rigidity. Obviously, the stud connection has good deformability, but insufficient rigidity, and requires a large number of arrangements to achieve the intended effect.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a semi-rigid list flange trompil folded sheet formula shear connector has solved the shear connector rigidity that exists among the prior art, intensity can not satisfy the problem that the requirement easily takes place deformation.
The utility model discloses the technical scheme who adopts is, semi-rigid single wing listrium trompil folded sheet formula shear connector, a serial communication port, including the web, the web is formed by connecting in order a plurality of folded plates, and a plurality of folded plates are the wave rugosity, has all opened the slotted hole on every folded plate, and a plurality of equidistant arrangements of slotted hole and center line are located a straight line, and center line is all perpendicular with the major axis of every slotted hole, and wherein one side of web still is connected with the flange board perpendicularly, and the flange board is perpendicular with the slotted hole major axis.
The utility model is also characterized in that,
two adjacent folded plates in the web form a V-shaped structure.
The opening angle of a V-shaped structure formed by two adjacent folded plates is 40-60 degrees.
The folded plates are welded in sequence.
The folding plates are integrally formed.
The utility model has the advantages that compared with the stud, the semi-rigid single wing flange plate perforated folding shear connector greatly increases the shear rigidity of the connector, and the corrugated web structure has good deformability while increasing the rigidity; the shear connector has no strong and weak axis, and compared with the traditional rigid connector and flexible connector, the shear connector belongs to semi-rigid connection, has obvious stiffness property and better deformability, and greatly improves the bearing capacity. Compared with the most common bolt connecting piece, the number of the connecting pieces in the same span section is obviously reduced, so that the construction efficiency is improved. The structure is simple, the working efficiency is greatly improved, the processing and the construction are convenient, and the prefabrication can be carried out in advance.
Drawings
FIG. 1 is a schematic structural view of a semi-rigid single flange plate opening folded plate type shear connector with a V-shaped structure formed by two adjacent folded plates in a web plate;
FIG. 2 is a schematic diagram of construction and installation of a semi-rigid single-flange plate opening folded plate type shear connector with a V-shaped structure formed by two adjacent folded plates in a web plate.
In the figure, 1, a web plate, 2, a folded plate, 3, a flange plate and 4, an oblong hole.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The utility model discloses semi-rigid single wing listrium trompil folded sheet formula shear connector, the structure is as shown in figure 1, figure 2 is shown, including web 1, web 1 is formed by connecting in order a plurality of folded plates 2, a plurality of folded plates 2 are the wave rugosity, all opened slotted hole 4 on every folded plate 2, a plurality of slotted hole 4 equidistant arrangement and center line are located a straight line, center line is all perpendicular with the major axis of every slotted hole 4, 1 wherein one side of web still is connected with the flange board 3 perpendicularly, flange board 3 is perpendicular with 4 major axes of slotted hole.
Two adjacent folded plates 2 in the web plate 1 form a V-shaped structure.
The opening angle of the V-shaped structure formed by two adjacent folded plates 2 is 40-60 degrees.
The folded plates 2 are welded in sequence.
The flaps 2 are integrally formed.
The utility model discloses half rigidity single wing listrium trompil folded plate formula shear connector, strong, weak axle rigidity is close. The shear connector for the section steel has obvious strong and weak axis differences, and can possibly act on the direction of the weak axis due to the uncertainty of the earthquake direction, so that the performance of the connector cannot be exerted, and the structure safety is adversely affected. The shear connector realizes the semi-rigid characteristic, has higher strength than a flexible shear connector, has better deformation capacity than a rigid shear connector, and greatly improves the stress performance of the structure. And have good constructability, shear connector can with the girder steel at the mill prefabrication, need not site operation, the efficiency of construction improves greatly. This shear connector because the web trompil, the concrete link up in trompil department, has improved the wholeness of connecting piece and concrete greatly, improves the safety of structure. Similar to the situation of the fabricated floor slab, the joint and the concrete which are easy to crack, the anti-cracking performance of the concrete at the joint can be greatly improved due to the constraint of the flange of the shear connector.
The utility model discloses half rigidity single wing listrium trompil folded sheet formula shear connector, construction structure design requirement is as follows:
(1) height of the connecting piece: the thickness of the floor slab is 30-40 mm lower than that of the floor slab;
(2) width of flange of connecting piece: not less than 80 mm;
(3) the thickness of the connecting piece: the thickness of the flange is not less than 5mm, and the thickness of the flange is consistent with that of the web;
(4) the size of the middle opening hole is as follows: the diameter is not less than 1.5 times of the maximum concrete coarse aggregate particle size;
(5) height of the middle opening hole: the distance from the edge of the web plate is more than 15 mm;
(6) the number of the folded plates is more than 2, and the specific number is according to the actual requirement;
(7) the angle of the folded plate is 40 degrees to 60 degrees, preferably 45 degrees, and is determined according to actual needs.
The utility model discloses half rigidity single wing listrium trompil folded plate formula shear connector in order to improve its rigidity and wholeness, can carry out welded connection with the folded plate in the web, if reduce rigidity only need fall into certain angle concatenation with the web portion form can. In this way, different stiffness requirements for different structures can be met.
Claims (5)
1. Semi-rigid folded plate formula shear connector, a serial communication port, including web (1), web (1) is formed by connecting in order a plurality of folded plates (2), a plurality of folded plates (2) are the wave rugosity, all opened slotted hole (4) on every folded plate (2), a plurality of slotted hole (4) are equidistant to be arranged and the line of centers is located a straight line, the line of centers is all perpendicular with the major axis of every slotted hole (4), web (1) wherein one side still is connected with flange board (3) perpendicularly, flange board (3) are perpendicular with slotted hole (4) major axis.
2. Semi-rigid flap shear connector according to claim 1, characterized in that two adjacent flaps (2) in the web (1) constitute a V-shaped structure.
3. The semi-rigid folded plate type shear connector according to claim 2, wherein the opening angle of the V-shaped structure formed by two adjacent folded plates (2) is 40-60 degrees.
4. A semi-rigid flap shear connector according to any of claims 1 to 3, wherein a plurality of said flaps (2) are welded in sequence.
5. A semi-rigid flap shear connector according to any of claims 1 to 3, wherein the flaps (2) are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920012628.1U CN209941903U (en) | 2019-01-04 | 2019-01-04 | Semi-rigid folded plate type shear connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920012628.1U CN209941903U (en) | 2019-01-04 | 2019-01-04 | Semi-rigid folded plate type shear connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209941903U true CN209941903U (en) | 2020-01-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920012628.1U Expired - Fee Related CN209941903U (en) | 2019-01-04 | 2019-01-04 | Semi-rigid folded plate type shear connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209941903U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111395543A (en) * | 2020-03-10 | 2020-07-10 | 西安理工大学 | Assembly type steel structure beam-plate connecting structure adopting wave-folded perforated plate connecting piece |
-
2019
- 2019-01-04 CN CN201920012628.1U patent/CN209941903U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111395543A (en) * | 2020-03-10 | 2020-07-10 | 西安理工大学 | Assembly type steel structure beam-plate connecting structure adopting wave-folded perforated plate connecting piece |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200114 Termination date: 20210104 |