CN219410545U - Connection structure and assembled pedestrian steel bridge deck pavement structure - Google Patents

Abstract

The utility model relates to the technical field related to bridge construction, in particular to a connecting structure and an assembled type pavement structure for a pavement of a pavement steel bridge, wherein the connecting structure comprises a primary steel beam, a secondary steel beam, a fastening bolt, a fastening nut and a stabilizing piece, a primary mounting hole is formed in the primary steel beam, a primary limit groove is formed in the port position of the primary mounting hole, a secondary mounting hole is formed in the secondary steel beam, a secondary limit groove is formed in the port position of the secondary mounting hole, and a screw rod of the fastening bolt sequentially penetrates through the primary mounting hole and the secondary mounting hole; through setting up the connection structure that constitutes by one-level girder steel, second grade girder steel, fastening bolt, fastening nut and steady firmware combination to through set up the block groove at fastening bolt's nut medial surface, and set up rectangular channel at steady firmware's surface, and set up the elastic slice on rectangular channel's lateral wall, thereby support in rectangular channel through the elastic slice, thereby prevent that fastening bolt from appearing not hard up phenomenon.

Description

Connection structure and assembled pedestrian steel bridge deck pavement structure

Technical Field

The utility model relates to the technical field related to bridge construction, in particular to a connecting structure and an assembled pedestrian steel bridge deck pavement structure.

Background

The steel bridge is a bridge which uses steel as a main construction material, has the characteristics of high strength and high rigidity, and can reduce the height and the dead weight of the beam relative to a concrete bridge;

the steel beams of the traditional steel bridge are usually welded or connected by bolts, the welding connection mode can lead to longer construction period, the bolt connection mode is lower in reliability, and because the bolts possibly have hidden dangers of loosening under the influence of external mechanical vibration, the utility model provides a connecting structure and an assembled pavement structure of the pedestrian steel bridge deck to solve the problems.

Disclosure of Invention

The utility model aims to provide a connecting structure and an assembled pavement structure for a pavement of a pavement steel bridge deck, so as to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a connection structure, the connection structure comprising:

the primary steel beam is provided with a primary mounting hole, and a primary limit groove is formed in the port position of the primary mounting hole;

the secondary steel beam is provided with a secondary mounting hole, and a secondary limit groove is formed in the port position of the secondary mounting hole;

the screw rod of the fastening bolt sequentially passes through the primary mounting hole and the secondary mounting hole, and the inner side surface of the nut of the fastening bolt is provided with a clamping groove;

the fastening nut is screwed on the screw rod of the fastening bolt, and the fastening nut is embedded in the secondary limiting groove;

the stabilizing piece is embedded into the first-stage limiting groove, and the fastening bolt is limited through the stabilizing piece.

Preferably, the primary limiting groove is of a regular decagonal notch structure, the outer outline size of the stabilizing piece is identical with the cross section size of the primary limiting groove, a rectangular groove is formed in the outer surface of the stabilizing piece, and an elastic sheet is integrally formed on the side wall of the rectangular groove.

Preferably, the clamping groove and the rectangular groove are provided with a circle, the clamping groove and the rectangular groove are correspondingly arranged, the end part of the elastic piece is tilted, and the tilting end of the elastic piece abuts against the side edge of the clamping groove when the fastening nut is unscrewed.

Preferably, the resilient sheet is cast from spring steel.

Preferably, the outline size of the secondary limiting groove is identical with the outline size of the fastening nut.

The utility model provides an assembled pedestrian steel bridge deck pavement structure, assembled pedestrian steel bridge deck pavement structure has above-mentioned connection structure, and its assembled pedestrian steel bridge deck pavement structure includes girder steel layer, steel sheet layer, heat-proof seal layer and asphalt mortar prefabricated layer, the girder steel layer comprises one-level girder steel and second grade girder steel butt joint, the steel sheet layer is laid on the girder steel layer, the heat-proof seal layer is laid on the steel sheet layer, the asphalt mortar prefabricated layer is laid on the heat-proof seal layer.

Preferably, the heat insulation sealing layer is a polyurethane plate, and the asphalt mortar prefabricated layer is a high-viscosity elastic asphalt mortar mixture plate.

Compared with the prior art, the utility model has the beneficial effects that:

1. the connecting structure formed by combining the primary steel beam, the secondary steel beam, the fastening bolt, the fastening nut and the stabilizing piece is arranged, the clamping groove is formed in the inner side surface of the nut of the fastening bolt, the rectangular groove is formed in the outer surface of the stabilizing piece, and the elastic piece is arranged on the side wall of the rectangular groove, so that the elastic piece is propped in the rectangular groove, and the fastening bolt is prevented from loosening;

2. and the pavement structure of the pavement of the pedestrian steel bridge is formed by combining a steel beam layer, a steel plate layer, a heat insulation sealing layer and an asphalt mortar precast layer, so that the heat transfer quantity of the pavement of the asphalt mortar layer is reduced through the heat insulation sealing layer, and the overall stability of the asphalt mortar precast layer is ensured.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the butt joint of the primary and secondary steel beams of the present utility model;

FIG. 3 is an enlarged schematic view of the structure shown in FIG. 2A;

FIG. 4 is a schematic view of the structure of the fastening bolt of the present utility model;

FIG. 5 is a schematic diagram of the structure of the stabilizing member of the present utility model;

fig. 6 is an enlarged schematic view of the structure at B in fig. 5 according to the present utility model.

In the figure: the steel beam layer 1, the steel plate layer 2, the heat insulation sealing layer 3, the asphalt cement sand prefabricated layer 4, the primary steel beam 5, the secondary steel beam 6, the primary mounting holes 7, the secondary mounting holes 8, the fastening bolts 9, the fastening nuts 10, the stabilizing pieces 11, the rectangular grooves 12, the elastic pieces 13, the primary limiting grooves 14, the secondary limiting grooves 15 and the clamping grooves 16.

Detailed Description

In order to make the objects, technical solutions, and advantages of the present utility model more apparent, the embodiments of the present utility model will be further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are some, but not all, embodiments of the present utility model, are intended to be illustrative only and not limiting of the embodiments of the present utility model, and that all other embodiments obtained by persons of ordinary skill in the art without making any inventive effort are within the scope of the present utility model.

In the description of the present utility model, it should be noted that the terms "center," "middle," "upper," "lower," "left," "right," "inner," "outer," "top," "bottom," "side," "vertical," "horizontal," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "a," an, "" the first, "" the second, "" the third, "" the fourth, "" the fifth, "and the sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

For purposes of brevity and description, the principles of the embodiments are described primarily by reference to examples. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. It will be apparent, however, to one of ordinary skill in the art that the embodiments may be practiced without limitation to these specific details. In some instances, well-known methods and structures have not been described in detail so as not to unnecessarily obscure the embodiments. In addition, all embodiments may be used in combination with each other.

Referring to fig. 1-6, the present utility model provides three preferred embodiments:

example 1

The utility model provides a connection structure, connection structure includes one-level girder steel 5, second grade girder steel 6, fastening bolt 9, fastening nut 10 and steady piece 11, one-level mounting hole 7 has been seted up on the one-level girder steel 5, one-level spacing groove 14 has been seted up to the port position department of one-level mounting hole 7, second grade mounting hole 8 has been seted up on the second grade girder steel 6, second grade spacing groove 15 has been seted up to the port position department of second grade mounting hole 8, the screw rod of fastening bolt 9 passes one-level mounting hole 7 in proper order, second grade mounting hole 8, and the block groove 16 has been seted up to the nut medial surface of fastening bolt 9, fastening nut 10 is screwed on the screw rod of fastening bolt 9, and fastening nut 10 imbeds in second grade spacing groove 15, steady piece 11 imbeds in one-level spacing groove 14, and fastening bolt 9 carries out spacingly through steady piece 11.

The primary limiting groove 14 is of a regular decagonal notch structure, the outer outline size of the stabilizing piece 11 is identical with the cross section size of the primary limiting groove 14, the rectangular groove 12 is formed in the outer surface of the stabilizing piece 11, and the elastic piece 13 is integrally formed on the side wall of the rectangular groove 12.

The clamping groove 16 and the rectangular groove 12 are provided with a circle, the clamping groove 16 and the rectangular groove 12 are correspondingly arranged, the end part of the elastic sheet 13 is tilted, in the unscrewing process of the fastening nut 10, the tilted end of the elastic sheet 13 abuts against the side edge of the clamping groove 16, and the elastic sheet 13 is cast by spring steel.

The outline size of the secondary limiting groove 15 is identical with the outline size of the fastening nut 10, a connecting structure formed by combining the primary steel beam 5, the secondary steel beam 6, the fastening bolt 9, the fastening nut 10 and the stabilizing piece 11 is arranged, a clamping groove 16 is formed in the inner side surface of the nut of the fastening bolt 9, a rectangular groove 12 is formed in the outer surface of the stabilizing piece 11, and an elastic piece 13 is arranged on the side wall of the rectangular groove 12, so that the elastic piece 13 is propped against the rectangular groove 12, and the fastening bolt 9 is prevented from loosening.

Example two

On the basis of the first embodiment, the assembled pavement structure of the pedestrian steel bridge deck comprises the connecting structure, wherein the assembled pavement structure of the pedestrian steel bridge deck comprises a steel beam layer 1, a steel plate layer 2, a heat insulation sealing layer 3 and an asphalt cement precast layer 4, the steel beam layer 1 is formed by butting a primary steel beam 5 and a secondary steel beam 6, the steel plate layer 2 is paved on the steel beam layer 1, the heat insulation sealing layer 3 is paved on the steel plate layer 2, the asphalt cement precast layer 4 is paved on the heat insulation sealing layer 3, and the pavement structure of the pavement steel bridge surface is formed by combining the steel beam layer 1, the steel plate layer 2, the heat insulation sealing layer 3 and the asphalt cement precast layer 4, so that heat transfer quantity of the pavement layer of the asphalt cement precast layer 4 is reduced towards the pavement layer of the pavement steel bridge surface through the heat insulation sealing layer 3, and the overall stability of the asphalt cement precast layer 4 is guaranteed.

Example III

On the basis of the second embodiment, the heat insulation sealing layer 3 is a polyurethane plate, and the asphalt cement precast layer 4 is a high-viscosity elastic asphalt cement mixture plate.

While the foregoing has been described in terms of illustrative embodiments thereof, so that those skilled in the art may appreciate the present application, it is not intended to be limited to the precise embodiments so that others skilled in the art may readily utilize the present application to its various modifications and variations which are within the spirit and scope of the present application as defined and determined by the appended claims.

Claims (7)

1. A connection structure, characterized in that: the connection structure includes:

the primary steel beam (5), a primary mounting hole (7) is formed in the primary steel beam (5), and a primary limit groove (14) is formed in the port position of the primary mounting hole (7);

the secondary steel beam (6), a secondary mounting hole (8) is formed in the secondary steel beam (6), and a secondary limit groove (15) is formed in the port position of the secondary mounting hole (8);

the screw rod of the fastening bolt (9) sequentially penetrates through the primary mounting hole (7) and the secondary mounting hole (8), and the inner side surface of the nut of the fastening bolt (9) is provided with a clamping groove (16);

the fastening nut (10) is screwed on a screw rod of the fastening bolt (9), and the fastening nut (10) is embedded in the secondary limiting groove (15);

the fixing piece (11), the fixing piece (11) is embedded in the first-stage limiting groove (14), and the fastening bolt (9) is limited through the fixing piece (11).

2. A connection structure according to claim 1, wherein: the primary limiting groove (14) is of a regular decagonal notch structure, the outer outline size of the stabilizing piece (11) is identical to the cross section size of the primary limiting groove (14), the rectangular groove (12) is formed in the outer surface of the stabilizing piece (11), and the elastic piece (13) is integrally formed on the side wall of the rectangular groove (12).

3. A connection structure according to claim 2, characterized in that: the clamping groove (16) and the rectangular groove (12) are provided with a circle, the clamping groove (16) and the rectangular groove (12) are correspondingly arranged, the end part of the elastic piece (13) is tilted, and the tilting end of the elastic piece (13) of the fastening nut (10) is propped against the side edge of the clamping groove (16) in the unscrewing process.

4. A connection according to claim 3, wherein: the elastic sheet (13) is cast from spring steel.

5. A connection structure according to claim 4, wherein: the outline size of the secondary limiting groove (15) is matched with the outline size of the fastening nut (10).

6. An assembled pedestrian steel bridge deck pavement structure, its characterized in that: the assembled pavement structure of the pedestrian steel bridge deck has any one of the connecting structures of claims 1-5, the assembled pavement structure of the pedestrian steel bridge deck comprises a steel beam layer (1), a steel plate layer (2), a heat insulation sealing layer (3) and an asphalt cement prefabrication layer (4), the steel beam layer (1) is formed by butt joint of a primary steel beam (5) and a secondary steel beam (6), the steel plate layer (2) is paved on the steel beam layer (1), the heat insulation sealing layer (3) is paved on the steel plate layer (2), and the asphalt cement prefabrication layer (4) is paved on the heat insulation sealing layer (3).

7. The fabricated pavement structure for a pedestrian steel bridge deck according to claim 6, wherein: the heat insulation sealing layer (3) is a polyurethane plate, and the asphalt mortar prefabricated layer (4) is a high-viscosity elastic asphalt mortar mixture plate.