Prefabricated and assembled corrugated steel web combined box girder structure

Abstract

The utility model discloses a prefabricated and assembled corrugated steel web combined box girder structure which comprises two I-shaped beam plates and a prefabricated slab erected between the two I-shaped beam plates. The prefabricated plate is prefabricated by a corrugated I-shaped steel web and two flange plates, L-shaped splicing blocks are pre-buried in the surfaces of the flange plates, L-shaped connectors corresponding to the L-shaped splicing blocks are formed in the surface of the I-shaped beam plate, and the L-shaped splicing blocks slide into the L-shaped connectors; the rotary limiting structures are arranged between the L-shaped splicing blocks and the L-shaped connectors; the corrugated I-shaped steel webs, the flange plates and the L-shaped splicing blocks are prefabricated to form an integral prefabricated plate in a factory, and then the two prefabricated plates are erected between the two I-shaped beam plates on site to complete quick splicing, so that the splicing efficiency and the construction efficiency of the whole combined box girder can be greatly improved, cast-in-place is not needed, and the construction cost is reduced. And the construction convenience is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of combined box beams, and in particular relates to a prefabricated assembled corrugated steel web combined box beam structure. Background Art

[0002] Composite box girder is a composite box girder structure, which is often used in the field of construction. It is generally composed of corrugated I-beam steel web, upper and lower flange plates, I-beam top and bottom plates and other components, and is cast on site.

[0003] However, most of the composite box girder structures in the prior art are manufactured by pouring concrete on site, which has low on-site assembly efficiency and requires the construction of corresponding casting templates, making the construction inconvenient. Therefore, the utility model proposes a prefabricated assembled corrugated steel web composite box girder structure. Utility Model Content

[0004] The utility model aims to provide a prefabricated assembled corrugated steel web composite box girder structure to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: a prefabricated assembled corrugated steel web composite box girder structure, comprising

[0006] Two I-beam slabs, and a precast slab erected between the two I-beam slabs;

[0007] The prefabricated plate is prefabricated from a corrugated I-beam steel web and two flange plates, and an L-shaped splicing block is pre-embedded on the surface of the flange plate, and an L-shaped interface corresponding to the L-shaped splicing block is opened on the surface of the I-beam plate, and the L-shaped splicing block slides into the L-shaped interface;

[0008] The invention also includes a rotary limit structure arranged between the L-shaped splicing block and the L-shaped interface, wherein the rotary limit structure includes a cylindrical inner rotation groove opened inside the L-shaped splicing block, a cylindrical base block rotatably installed inside the cylindrical inner rotation groove, a limit card block fixed on the top surface of the cylindrical base block, and a limit card block opened on the surface of the L-shaped splicing block and communicating with the cylindrical inner rotation groove, wherein the limit card block is movably located in the card block movable groove, and the inner wall of the L-shaped interface is provided with a limit card groove corresponding to the limit card block , and the end of the limiting block is screwed into the limiting slot, the front end of the cylindrical base block penetrates to the front surface of the L-shaped splicing block, and the front end surface of the cylindrical base block is provided with a hexagonal groove, the rotating limiting structure also includes a bottom slot opened inside the L-shaped splicing block, a spring and a telescopic bead installed inside the bottom slot, and two positioning slots opened on the surface of the cylindrical base block, the telescopic bead is movably installed in the bottom slot by a spring, and the end of the telescopic bead pops out into one of the positioning slots.

[0009] Preferably, one end of the spring is fixed to the inner wall of the bottom groove, and the other end of the spring is fixed to the telescopic bead.

[0010] Preferably, an ejection hole is provided between the bottom groove and the cylindrical inner rotation groove, and the ejection hole is matched with the end of the telescopic card bead.

[0011] Preferably, rectangular anti-slip blocks are fixed to both end surfaces of the corrugated I-beam steel web, and the ends of the corrugated I-beam steel web and the rectangular blocks are pre-buried inside the flange plate.

[0012] Preferably, an integrated transverse embedded plate is provided at the end of the L-shaped splicing block, and the transverse embedded plate is preset in the flange plate.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the utility model prefabricates the corrugated I-beam steel web, flange plate and L-shaped splicing block into an integral prefabricated plate in the factory, and then sets up two prefabricated plates between two I-beam plates on site to complete rapid splicing, which can greatly improve the splicing efficiency and construction efficiency of the entire composite box girder, does not require on-site casting, and is highly convenient to construct. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 For this utility model Figure 1 A partial enlarged view of the middle A area;

[0016] Figure 3 It is a cross-sectional view of the connection between the L-shaped splicing block and the L-shaped interface of the utility model;

[0017] Figure 4 For this utility model Figure 3 A partial enlarged view of the middle B area;

[0018] In the figure: 1, I-beam plate; 11, L-shaped interface; 21, corrugated I-beam steel web; 22, flange plate; 23, L-shaped splicing block; 31, cylindrical base block; 32, hexagonal groove; 33, cylindrical inner rotation groove; 34, limit card block; 35, card block movable groove; 36, limit card slot; 37, bottom slot; 38, spring; 39, telescopic card bead; 310, positioning card slot. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Example

[0021] See also Figures 1 to 4 , is an embodiment of the utility model, which provides a technical solution: a prefabricated assembled corrugated steel web composite box girder structure, comprising

[0022] Two I-beam plates 1, a precast plate erected between the two I-beam plates 1;

[0023] The prefabricated plate is prefabricated by a corrugated I-beam steel web 21 and two flange plates 22, and an L-shaped splicing block 23 is pre-embedded on the surface of the flange plate 22. An L-shaped interface 11 corresponding to the L-shaped splicing block 23 is opened on the surface of the I-beam plate 1, and the L-shaped splicing block 23 slides into the L-shaped interface 11;

[0024] The L-shaped joint block 23 and the L-shaped interface 11 are provided with a rotary limit structure, which includes a cylindrical inner rotation groove 33 provided inside the L-shaped joint block 23, a cylindrical base block 31 rotatably installed inside the cylindrical inner rotation groove 33, a limit block 34 welded and fixed to the top surface of the cylindrical base block 31, and a limit block 34 provided on the surface of the L-shaped joint block 23 and communicating with the cylindrical inner rotation groove 33. The limit block 34 is movably located in a block movable groove 35. A limit groove 36 corresponding to the limit block 34 is provided on the inner wall of the L-shaped interface 11, and an end of the limit block 34 is screwed into the limit groove 36. The front end of the cylindrical base block 31 penetrates to the front surface of the L-shaped splicing block 23, and a hexagonal groove 32 is provided on the front surface of the cylindrical base block 31. The rotary limiting structure also includes a bottom groove 37 provided inside the L-shaped splicing block 23, a spring 38 and a telescopic card bead 39 installed inside the bottom groove 37, and two positioning card grooves 310 provided on the surface of the cylindrical base block 31. The telescopic card bead 39 is movably installed in the bottom groove 37 by the spring 38, and the end of the telescopic card bead 39 pops out into one of the positioning card grooves 310, which can be engaged and limited to the cylindrical base block 31, so that the cylindrical base block 31 can be engaged and limited after rotation.

[0025] One end of the spring 38 is fixed to the inner wall of the bottom groove 37 , and the other end of the spring 38 is fixed to the telescopic bead 39 , thereby ensuring the installation stability of the spring 38 .

[0026] An ejection hole is provided between the bottom groove 37 and the cylindrical inner rotation groove 33 , and the ejection hole is matched with the end of the telescopic card bead 39 to facilitate the smooth ejection of the telescopic card bead 39 .

[0027] Among them, rectangular anti-slip blocks are welded and fixed on the two end surfaces of the corrugated I-beam steel web 21, and the ends of the corrugated I-beam steel web 21 and the rectangular blocks are pre-embedded inside the flange plate 22, which can ensure the stability of the prefabricated combination of the corrugated I-beam steel web 21 and the flange plate 22, and play a certain anti-slip effect under the action of the rectangular anti-slip blocks.

[0028] Among them, an integrated transverse embedded plate is provided at the end of the L-shaped splicing block 23, and the transverse embedded plate is preset in the flange plate 22 to ensure the stability of the L-shaped splicing block 23 and the flange plate 22 after being prefabricated together.

[0029] In summary, during actual assembly, the corrugated I-beam steel web 21, flange plate 22 and L-shaped splicing block 23 are all prefabricated in the factory to form an integral prefabricated plate. After arriving at the construction site, the two prefabricated plates are erected between the two I-beam plates 1, and the L-shaped splicing block 23 is slid into the L-shaped interface 11. Then, the cylindrical base block 31 is rotated with an internal hexagonal wrench that matches the hexagonal groove 32. During rotation, the end of the telescopic card bead 39 will be squeezed into the bottom groove 37 first, so that the cylindrical base block 31 can smoothly rotate with the limit card block 34, so that the limit The end of the block 34 can be screwed into the limiting slot 36 from the block movable slot 35. When the cylindrical base block 31 is rotated ninety degrees, the end of the telescopic bead 39 will be inserted into another positioning slot 310 under the push of the spring 38, thereby realizing the locking and limiting of the cylindrical base block 31 and the limiting block 34 after rotation. At this time, because the end of the limiting block 34 is stuck in the limiting slot 36, the L-shaped splicing block 23 can be stably connected to the I-beam plate 1, ensuring the assembly stability between the I-beam plate 1 and the prefabricated plate, and then the subsequent construction steps can be continued.

[0030] Although the embodiments of the present invention have been shown and described (see the above detailed description for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A prefabricated assembled corrugated steel web composite box girder structure, characterized in that: include Two I-beam plates (1), and a prefabricated plate erected between the two I-beam plates (1); The prefabricated plate is prefabricated from a corrugated I-beam steel web (21) and two flange plates (22), and an L-shaped splicing block (23) is pre-embedded on the surface of the flange plate (22), and an L-shaped interface (11) corresponding to the L-shaped splicing block (23) is opened on the surface of the I-beam plate (1), and the L-shaped splicing block (23) slides into the L-shaped interface (11); It also includes a rotational limiting structure arranged between the L-shaped splicing block (23) and the L-shaped interface (11).

2. The prefabricated assembled corrugated steel web composite box girder structure according to claim 1, characterized in that: The rotary limiting structure comprises a cylindrical inner rotation groove (33) provided inside the L-shaped splicing block (23), a cylindrical base block (31) rotatably mounted inside the cylindrical inner rotation groove (33), a limiting clamping block (34) fixed on the top surface of the cylindrical base block (31), and a limiting clamping block (34) provided on the surface of the L-shaped splicing block (23) and communicating with the cylindrical inner rotation groove (33); the limiting clamping block (34) is movably located in a clamping block movable groove (35); a limiting clamping groove (36) corresponding to the limiting clamping block (34) is provided on the inner wall of the L-shaped interface (11), and an end of the limiting clamping block (34) is screwed into the limiting clamping groove (36); the front end of the cylindrical base block (31) penetrates to the front surface of the L-shaped splicing block (23), and the front end surface of the cylindrical base block (31) is provided with a hexagonal groove (32).

3. The prefabricated assembled corrugated steel web composite box girder structure according to claim 2, characterized in that: The rotary limiting structure also includes a bottom groove (37) provided inside the L-shaped splicing block (23), a spring (38) and a telescopic bead (39) installed inside the bottom groove (37), and two positioning grooves (310) provided on the surface of the cylindrical base block (31); the telescopic bead (39) is movably installed in the bottom groove (37) through the spring (38), and an end of the telescopic bead (39) pops out into one of the positioning grooves (310).

4. The prefabricated assembled corrugated steel web composite box girder structure according to claim 3, characterized in that: One end of the spring (38) is fixed on the inner wall of the bottom groove (37), and the other end of the spring (38) is fixed to the telescopic card bead (39).

5. The prefabricated assembled corrugated steel web composite box girder structure according to claim 3, characterized in that: An ejection hole is provided between the bottom groove (37) and the cylindrical inner rotation groove (33), and the ejection hole is matched with the end of the telescopic card bead (39).

6. The prefabricated assembled corrugated steel web composite box girder structure according to claim 1, characterized in that: Rectangular anti-slip blocks are fixed to both end surfaces of the corrugated I-beam steel web (21), and both the ends of the corrugated I-beam steel web (21) and the rectangular blocks are pre-buried inside the flange plate (22).

7. The prefabricated assembled corrugated steel web composite box girder structure according to claim 1, characterized in that: An integrated transverse pre-embedded plate is provided at the end of the L-shaped splicing block (23), and the transverse pre-embedded plate is preset in the flange plate (22).

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