CN214882885U - Cross trompil board built-up connection spare - Google Patents
Cross trompil board built-up connection spare Download PDFInfo
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- CN214882885U CN214882885U CN202022155789.1U CN202022155789U CN214882885U CN 214882885 U CN214882885 U CN 214882885U CN 202022155789 U CN202022155789 U CN 202022155789U CN 214882885 U CN214882885 U CN 214882885U
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Abstract
The utility model discloses a cross perforated plate combined connecting piece, which comprises a cross perforated plate and an anti-lifting plate; the cross perforated plate comprises four flanges, the four flanges are connected together along the length direction to form a cross section, and a plurality of preformed holes are formed along the length direction of the cross perforated plate; one end of the cross perforated plate is connected with the anti-lifting plate, and the other end of the cross perforated plate is used for connecting the steel beam; the cross connecting piece resists the longitudinal shearing force between the steel beam and the concrete slab through the pin bolt action of the concrete in the hole and the reinforcing steel bars in the hole; the cross connecting piece is an integral body, and is cooperated with stress, the bearing capacity of the structure is further improved, the lifting-resistant plate can effectively resist the lifting action between the steel beam and the concrete plate, and the transverse reinforcing rib further enhances the lifting-resistant capacity, so that the parts of the utility model are easy to obtain, the cost is lower, and the parts can be processed synchronously with the steel beam; the combination effect is good, and the mechanical property is good.
Description
Technical Field
The utility model belongs to bridge engineering and steel-concrete integrated configuration field, concretely relates to cross trompil board built-up connection spare.
Background
The steel-concrete composite beam combines a steel beam and a concrete slab into a whole to bear force together through a shear connector, and is widely applied to the fields of bridge engineering, building engineering and the like at present. The shear connector of the composite beam not only bears the longitudinal shear between the steel beam and the concrete slab, but also resists the lifting between the concrete slab and the steel beam, and is a key part for the composite beam to keep normal operation. The shear connectors have various forms, and the current mainstream connecting modes include a stud connector and a perforated plate connector (PBL connector).
The stud connecting piece belongs to the flexible connecting piece, can take place great deformation under the shear force effect, but what comes with is the reduction of bearing capacity, therefore generally arrange a lot more, the interval is less, not only influences structural design, also can increase the cost. In addition, the protruding area of the stud cap is small, cracks of concrete around the stud cap are rapidly developed and damaged under the splitting action, and the stud is weak in lifting resistance.
The perforated plate connecting piece belongs to a rigid connecting piece, and is mainly used for resisting longitudinal shearing force by the pin bolt action of concrete in a steel plate hole, so that the bearing capacity of the perforated plate connecting piece is improved by a mode of penetrating a steel bar in a preformed hole, the perforated plate connecting piece is convenient to construct, and good fatigue resistance is realized. However, the perforated plate connecting piece is made of a large amount of steel, brittle failure is easy to occur, and the perforated plate also artificially divides the concrete slab into a plurality of areas, so that the integrity of the concrete slab is influenced, and finally, the integral bearing capacity of the composite beam is reduced.
In conclusion, the stud connecting piece and the perforated plate connecting piece mainly bear longitudinal shearing force, the rest mechanical properties are weak, and the advantages and the disadvantages are obvious.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a cross perforated plate combined connecting piece, which comprises a cross perforated plate and an anti-lifting plate 2; the cross perforated plate comprises four flanges, the four flanges are connected together along the length direction to form a cross section, and a plurality of preformed holes are formed along the length direction of the cross perforated plate; one end of the cross-shaped perforated plate is connected with the anti-lifting plate, and the other end of the cross-shaped perforated plate is used for connecting the steel beam.
And integrally forming the cross perforated plate.
And a transverse reinforcing rib penetrates through the reserved hole.
The diameter of the prepared hole is not less than 15mm and not less than the diameter of the transverse reinforcing rib.
And a limiting structure is arranged at the joint of the transverse reinforcing rib and the cross perforated plate.
One end of the cross perforated plate connected with the steel beam is welded with a connecting plate.
The cross-shaped perforated plate comprises a cross-shaped perforated plate transverse plate and a cross-shaped perforated plate longitudinal plate, and the cross-shaped perforated plate transverse plate and the cross-shaped perforated plate longitudinal plate are perpendicular to each other.
The length and the width of the anti-lifting plate are not less than the width and the length of the cross section of the cross-shaped perforated plate.
Compared with the prior art, the utility model discloses following beneficial effect has at least:
the cross connecting piece resists the longitudinal shearing force between the steel beam and the concrete slab through the pin bolt action of the concrete in the hole and the reinforcing steel bars in the hole; the cross connecting piece is an integral body and is stressed cooperatively, so that the bearing capacity of the structure is further improved; the anti-lifting plate can effectively resist the lifting action between the steel beam and the concrete plate, and the transverse reinforcing ribs further enhance the anti-lifting capacity, so that the parts of the utility model are easy to obtain, the cost is lower, and the parts can be synchronously processed with the steel beam; the combination effect is good, and the mechanical property is good; compared with the stud connecting piece, the high-strength anti-shear bolt has the advantages that good longitudinal and transverse shear rigidity and shear strength are provided, the bearing capacity of the structure is improved, the fatigue resistance of the structure is enhanced, and the high-strength anti-shear bolt has good lifting resistance; for the trompil board connecting piece, provide good horizontal shear rigidity and shear strength, reduced the fragility of structure, increased the ductility of structure, guaranteed girder steel and concrete slab's wholeness.
Drawings
Fig. 1 is a schematic diagram of an implementable structure of the present invention.
Fig. 2 the utility model relates to an implement the operating mode schematic diagram.
Fig. 3 is another schematic view of the present invention.
In the figure: 1-a steel beam; 2-anti-lifting; 3-a cross perforated plate transverse plate; 4-a cross perforated plate longitudinal plate; 5-preparing a hole; 6-transverse reinforcing ribs; 7-concrete slab.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, 2 and 3, a cross-shaped perforated plate combined connecting piece comprises a cross-shaped perforated plate and an anti-lifting plate 2; the cross perforated plate comprises four flanges, the four flanges are connected together along the length direction to form a cross section, and a plurality of preformed holes 5 are formed along the length direction of the cross perforated plate; one end of the cross perforated plate is connected with the anti-lifting plate 2, and the other end of the cross perforated plate is used for connecting the steel beam 1; the cross perforated plate and the steel beam can be connected by welding without special welding equipment; the utility model discloses can go on in step with the girder steel processing, the plate and the girder steel edge of a wing quadrature of two directions of cross connecting piece are arranged.
Optionally, the cross-shaped perforated plate is integrally formed.
A transverse reinforcing rib 6 penetrates through the preformed hole 5; the diameter of the preformed hole 5 is not less than 15mm and not less than the diameter of the transverse reinforcing rib 6; a limiting structure is arranged at the joint of the transverse reinforcing rib 6 and the cross perforated plate; one end of the cross perforated plate connected with the steel beam is welded with a connecting plate.
The limiting structure specifically comprises: the hoops are arranged on the transverse reinforcing ribs 6 and are arranged on two sides of the transverse plate 3 of the cross perforated plate and the longitudinal plate 4 of the cross perforated plate.
The limiting structure can also be a limiting block welded on the transverse reinforcing rib 6, and the limiting block is arranged on two sides of the transverse plate 3 of the cross perforated plate and the longitudinal plate 4 of the cross perforated plate.
The one end welding that the girder steel was connected to cross trompil board has the connecting plate, the connecting plate is convenient for with girder steel 1 welding.
The cross trompil board includes the horizontal board 3 of cross trompil board and the vertical board 4 of cross trompil board, and the horizontal board 3 of cross trompil board and the vertical board 4 mutually perpendicular of cross trompil board.
The length and the width of the anti-lifting plate 2 are not less than the width and the length of the cross section of the cross-shaped perforated plate.
The cross perforated plate comprises a cross perforated plate transverse plate 3 and a cross perforated plate longitudinal plate 4, the cross perforated plate transverse plate 3 and the cross perforated plate longitudinal plate 4 are perpendicular to each other, and the longitudinal perforated plate resists longitudinal shearing force between the steel beam and the concrete plate through the pin bolt effect of concrete in the hole and reinforcing steel bars in the hole; the transverse perforated plate acts against the transverse shear between the steel beam and the concrete slab through the pin of the concrete in the hole.
The length and the width of the anti-lifting plate 2 are not less than the width and the length of the cross section of the cross-shaped perforated plate.
The transverse stiffener 6 may not pass through the prepared hole 5, which in this case is equivalent to a stiffened version of the peg attachment.
The plates in two directions of the cross connecting piece are arranged in an orthogonal mode with the flange of the steel beam, one end of the cross perforated plate is welded on the flange plate of the steel beam, the other end of the cross perforated plate is welded with the anti-lifting plate, and the transverse reinforcing rib penetrates through the reserved hole and is reliably connected with the reinforcing steel bar in the concrete bridge deck; the anti-lifting plate can effectively resist the lifting action between the steel beam and the concrete plate, and the transverse reinforcing ribs further enhance the anti-lifting capacity; the longitudinal perforated plate resists the longitudinal shearing force between the steel beam and the concrete plate through the pin bolt action of the concrete in the hole and the reinforcing steel bars in the hole; the transverse perforated plate resists the transverse shearing force between the steel beam and the concrete plate through the pin bolt action of the concrete in the hole; the longitudinal and transverse perforated plates are connected into a whole and are stressed cooperatively, so that the bearing capacity of the structure is further improved.
Cross trompil board built-up connection spare, the concrete implementation step is as follows:
ST 01: manufacturing a steel beam 1;
ST 02: manufacturing a cross perforated plate and an anti-lifting plate 2, and arranging a preformed hole 5 with a required diameter according to the design size requirement, wherein the diameter of the preformed hole is not less than 15mm, and the diameter of the preformed hole 5 through which a steel bar needs to be inserted is not less than the diameter of the inserted steel bar;
ST 03: assembling the cross perforated plate and the anti-lifting plate 2 into a whole to form a cross perforated plate combined connecting piece;
ST 04: welding the cross perforated plate combined connecting piece to the flange of the steel beam according to the design requirement;
ST 05: hoisting the steel beam 1;
ST 06: and (3) installing a precast concrete plate or a cast-in-place concrete plate 7, and maintaining according to the specification to form a combined structure.
Optionally, the horizontal board of cross trompil board is vertical perpendicular with girder steel 1, and the vertical board of cross trompil board is parallel with girder steel 1 vertically.
As another optional embodiment, an included angle is formed between the transverse plate of the cross perforated plate and the longitudinal direction of the steel beam 1, and between the longitudinal plate of the cross perforated plate and the longitudinal direction of the steel beam 1; so that the transverse reinforcing ribs form a net structure in the working state.
Optionally, the cross perforated plate may be formed by welding three steel plates, specifically, two identical steel plates are respectively welded perpendicularly to the center lines of two sides of the third steel plate; and forming a through hole before welding the three steel plates.
The cross-shaped perforated plate can also be integrally formed, and the through hole is formed after the cross-shaped plate is prepared.
The foregoing is illustrative of the preferred embodiment of the present invention and is not to be construed as limiting thereof, and any modifications, variations or improvements made within the spirit and scope of the invention are intended to be covered by the appended claims.
Claims (8)
1. The utility model provides a cross trompil board built-up connection spare which characterized in that: comprises a cross-shaped perforated plate and an anti-lifting plate (2); the cross perforated plate comprises four flanges, the four flanges are connected together along the length direction to form a cross section, and a plurality of preformed holes (5) are formed along the length direction of the cross perforated plate; one end of the cross perforated plate is connected with the anti-lifting plate (2), and the other end of the cross perforated plate is used for connecting the steel beam (1).
2. The cross-hole plate combination connector as set forth in claim 1, wherein: and integrally forming the cross perforated plate.
3. The cross-hole plate combination connector as set forth in claim 1, wherein: the preformed hole (5) is internally provided with a transverse reinforcing rib (6) in a penetrating way.
4. The cross-hole plate combination connector of claim 3, wherein: the diameter of the preformed hole (5) is not less than 15mm and not less than the diameter of the transverse reinforcing rib (6).
5. The cross-hole plate combination connector of claim 3, wherein: and a limiting structure is arranged at the joint of the transverse reinforcing rib (6) and the cross perforated plate.
6. The cross-hole plate combination connector as set forth in claim 1, wherein: one end of the cross perforated plate connected with the steel beam is welded with a connecting plate.
7. The cross-hole plate combination connector as set forth in claim 1, wherein: the cross tapping plate comprises a cross tapping plate transverse plate (3) and a cross tapping plate longitudinal plate (4), and the cross tapping plate transverse plate (3) and the cross tapping plate longitudinal plate (4) are perpendicular to each other.
8. The cross-hole plate combination connector as set forth in claim 1, wherein: the length and the width of the anti-lifting plate (2) are not less than the width and the length of the cross section of the cross-shaped perforated plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022155789.1U CN214882885U (en) | 2020-09-27 | 2020-09-27 | Cross trompil board built-up connection spare |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022155789.1U CN214882885U (en) | 2020-09-27 | 2020-09-27 | Cross trompil board built-up connection spare |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214882885U true CN214882885U (en) | 2021-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022155789.1U Active CN214882885U (en) | 2020-09-27 | 2020-09-27 | Cross trompil board built-up connection spare |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214882885U (en) |
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2020
- 2020-09-27 CN CN202022155789.1U patent/CN214882885U/en active Active
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