Profiled steel sheet bridge deck structure

Abstract

The utility model discloses a profiled steel sheet bridge deck structure, which belongs to the technical field of bridge deck structures, and comprises a steel beam, a profiled steel sheet layer, a concrete pouring layer and a road pavement layer, a closed profiled steel sheet of the profiled steel sheet layer is provided with a plurality of groups of parallel first grooves, and an open profiled steel sheet is provided with a plurality of groups of parallel second grooves. The profiled steel sheet layer is provided with a connecting mechanism, the connecting mechanism comprises n-shaped connecting pieces, each connecting piece comprises a bent part and a connecting part, the connecting parts on the two sides are arranged in the adjacent first grooves and the adjacent second grooves, and the connecting pieces are evenly distributed in the length direction of the first grooves and the length direction of the second grooves correspondingly. The first groove and the second groove are each provided with a first connecting rod extending in the length direction of the first groove and the second groove, and the first connecting rods are used for being connected with connecting pieces arranged in the extending directions of the first connecting rods. The utility model has the advantages of simple hierarchical structure, easiness in construction, lower construction cost and higher efficiency, and is suitable for bridge deck maintenance and transformation of the interchange overpass.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge deck structures, and particularly relates to a corrugated steel plate bridge deck structure. Background Art

[0002] With the sustained and rapid development of my country's economy, the highway industry has achieved remarkable achievements. China's total highway mileage continues to grow, and expressways are booming, ranking first in the world. Major projects have emerged one after another, such as the Beijing-Xiongan Expressway and the Hong Kong-Zhuhai-Macao Bridge, which have become a strong support for national development. However, as highways develop, the number of vehicles has increased dramatically, and more and more vehicles are traveling on highways, which has brought tremendous pressure to highways and their ancillary facilities. As an important part of highways, bridges will inevitably be damaged and aged over time and with the frequent passage of vehicles. In order to ensure the safety and normal use of bridges, bridge maintenance work has become particularly critical.

[0003] Interchanges are interchange facilities set up between intersecting roads at different elevations, which allow vehicles to realize traffic transfers in different directions. They can reduce traffic interference, improve traffic efficiency, separate traffic flows and adapt to complex traffic needs. Some interchanges use prestressed concrete continuous hollow slab structures on the upper part. With the increase of service life, the bottom plate of the prestressed concrete hollow slab of the bridge is prone to transverse cracks accompanied by water seepage and alkali seepage. When the results of the bridge load test show that the bearing capacity of the bridge does not meet the design requirements and affects the safe operation of the bridge, it is necessary to maintain and transform the upper structure of the bridge.

[0004] Interchange overpasses have high requirements for bridge deck elevation and clearance under the bridge. If the original hollow slab of the bridge is replaced with a small box beam, the main line elevation will be raised, and all ramps in the interchange area must be partially reconstructed to connect to the main line, which is likely to increase the longitudinal slope of the ramp and reduce the sight distance on and off the highway. The project volume is large and there are certain safety risks. The clear hole under the bridge is limited. If the ramp is dug down, it is necessary to dig down and rebuild the ramp, remove the platform caps, cap beams, and some bridge piers that are not damaged, and rebuild them to lower the bridge deck elevation. This will incur more costs for reconstructing the lower structure and rebuilding the ramp, and the maintenance and reconstruction costs are high. Utility Model Content

[0005] The utility model aims to provide a corrugated steel plate bridge deck structure, aiming to solve the technical problem that the bridge deck of an interchange overpass in the above-mentioned background technology cannot be economically and efficiently renovated to meet its elevation and clearance under the bridge during maintenance and renovation.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A corrugated steel plate bridge deck structure comprises a steel beam, and a corrugated steel plate layer, a concrete pouring layer and a road pavement layer arranged on the steel beam in sequence from bottom to top, the corrugated steel plate layer comprises a closed corrugated steel plate and an open corrugated steel plate, the closed corrugated steel plate is provided with a plurality of groups of parallel first grooves, and the open corrugated steel plate is provided with a plurality of groups of parallel second grooves, the corrugated steel plate layer is provided with a connecting mechanism, the connecting mechanism comprises a "J"-shaped connecting piece, the connecting piece is perpendicular to the corrugated steel plate layer, the connecting piece comprises a bending portion, and connecting parts arranged at both ends of the bending portion, the connecting parts on both sides are arranged in adjacent first grooves and adjacent second grooves, the connecting pieces are uniformly arranged along the length direction of the first groove and the length direction of the second groove, the first groove and the second groove are respectively provided with a first connecting rod extending along their respective length directions, the first connecting rod is used to connect the connecting piece arranged along its extension direction.

[0008] Furthermore, the first connecting rod is arranged at the connecting parts on both sides of the bending part, and a second connecting rod is provided on the inner side of the top of the bending part. The second connecting rod is parallel to the first connecting rod, and the second connecting rod is used to connect the connecting parts arranged along its length direction.

[0009] Furthermore, third connecting rods are respectively arranged in the parallel first grooves and the connecting pieces arranged side by side in the parallel second grooves, and the third connecting rods are perpendicular to the first connecting rods.

[0010] Furthermore, the closed-end corrugated steel plate is arranged on the top of the steel beam, the first groove extends along the length direction of the steel beam, the open-end corrugated steel plate is arranged on both sides of the closed-end corrugated steel plate, and the second groove is perpendicular to the extension direction of the first groove.

[0011] Furthermore, the top of the connecting piece is arranged on the road pavement layer.

[0012] Compared with the shortcomings and deficiencies of the prior art, the utility model has the following beneficial effects:

[0013] The utility model provides a corrugated steel plate bridge deck structure, which is sequentially provided with a steel beam, a corrugated steel plate layer, a concrete pouring layer and a road pavement layer. The hierarchical structure is simple and can meet the requirements of the interchange type overpass for the elevation and the clearance under the bridge. A connecting mechanism is arranged on the corrugated steel plate layer, and an open corrugated steel plate and a closed corrugated steel plate are respectively evenly provided with "J"-shaped connecting pieces along a first groove and a second groove. The connecting pieces are connected by a first connecting rod, a second connecting rod and a third connecting rod, which is beneficial to improving the overall structural strength of the bridge deck structure. The connecting piece is perpendicular to the corrugated steel plate, and the top of the connecting piece is located on the road pavement layer, which is beneficial to improving the stability of the connection between the corrugated steel plate layer, the concrete pouring layer and the road pavement layer. The connecting mechanism and the corrugated steel plate layer can be prefabricated in a factory, which is beneficial to saving the maintenance and transformation cost and improving the maintenance and transformation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a corrugated steel plate bridge deck structure in the utility model.

[0015] Figure 2 It is a structural schematic diagram of a closed-end corrugated steel plate provided with a connecting piece in the utility model.

[0016] Figure 3 It is a structural schematic diagram of an open corrugated steel plate provided with a connecting piece in the utility model.

[0017] Figure 4 It is a structural schematic diagram of a connection mechanism for a medium-pressure steel plate layer of the utility model.

[0018] In the figure: 1-steel beam; 2-corrugated steel sheet layer; 3-concrete pouring layer; 4-pavement layer; 5-closed corrugated steel sheet; 6-open corrugated steel sheet; 7-connector; 8-connecting part; 9-bending part; 10-first connecting rod; 11-second connecting rod; 12-third connecting rod; 13-bolt; 14-first groove; 15-second groove. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0020] Reference Figure 1 A corrugated steel plate bridge deck structure, comprising a corrugated steel plate layer 2, a concrete pouring layer 3 and a road pavement layer 4 arranged in sequence from bottom to top, wherein the corrugated steel plate layer 2 is arranged on the top of a steel beam (1) as a bottom support of the bridge deck structure, the corrugated steel plate layer 2 comprises a closed corrugated steel plate 5 and an open corrugated steel plate 6, the closed corrugated steel plate 5 has a first groove 14 extending along its length direction, a plurality of first grooves 14 are arranged in parallel and spaced apart, the closed corrugated steel plate 5 is laid along the steel beam 1 and fixed by bolts 13 The extension direction of the first groove 14 is the same as the extension direction of the steel beam 1. The open-type corrugated steel plate 6 has a second groove 15 extending along its length direction. The open-type corrugated steel plate 6 is arranged on both sides of the closed-type corrugated steel plate 5, and is located between adjacent steel beams 1 and on the outside of the edge steel beam 1. The second groove 15 of the open-type corrugated steel plate 6 is perpendicular to the extension direction of the first groove 14 of the closed-type corrugated steel plate 5. The open-type corrugated steel plate 6 and the closed-type corrugated steel plate 5 cooperate to form the bottom support of the bridge deck structure.

[0021] The concrete pouring layer 3 is arranged above the corrugated steel plate layer 2 to provide structural strength for the bridge deck and ensure the overall bearing capacity of the bridge. The road pavement layer 4 is arranged above the concrete pouring layer 3. The road pavement layer 4 is paved with concrete asphalt. The concrete asphalt pavement has good flatness, helps to reduce vehicle bumps, and has good noise reduction and anti-skid effects.

[0022] Reference Figure 2-Figure 4 The corrugated steel sheet layer 2 is provided with a connection mechanism for improving the connection stability between the corrugated steel sheet layer 2 and the concrete pouring layer 3, and improving the overall structural strength of the bridge deck. Specifically, the connection mechanism includes a connector 7 of a "J"-shaped structure, the connector 7 includes a bending portion 9, and connecting portions 8 arranged at both ends of the bending portion 9. In the closed-end corrugated steel sheet 5, the connecting portions 8 on both sides of the connector 7 are arranged in adjacent first grooves 14, and the bending portion 9 is perpendicular to the closed-end corrugated steel sheet 5 as a whole. The connector 7 is evenly arranged along the length direction of the first groove 14. The connecting portions 8 on both sides of the connector 7 are respectively provided with first connecting rods 10, and the first connecting rods 10 extend along the length direction of the first groove 14, and are used to connect the various connecting portions 8 on the extension path. A second connecting rod 11 is arranged on the inner side of the top of the bending portion 9 of the connector 7, and the second connecting rod 11 extends along the length direction of the first groove 14, and is used to connect. The various bending portions 9 on the extension path are connected as a whole by the second connecting rod 11 and the first connecting rods 10 on both sides, and the connecting pieces 7 arranged along the length direction of the first grooves 14 are connected. The connecting pieces 7 between the parallel first grooves 14 are connected by the third connecting rod 12. The third connecting rod 12 is perpendicular to the extension direction of the first grooves 14. The third connecting rod 12 is arranged on the top of the rib of the closed-type corrugated steel plate 5. The third connecting rod 12 is used to connect various connecting pieces 7 along the width direction of the bridge deck. The connecting pieces 7 arranged on the closed-type corrugated steel plate 5 are connected as a whole by the first connecting rod 10, the second connecting rod 11 and the third connecting rod 12 to form a stable connection and support structure, which helps to improve the overall structural strength of the bridge deck.

[0023] Similarly, in the open corrugated steel sheet 6, the connecting parts 8 on both sides of the connecting member 7 are respectively arranged in adjacent second grooves 15, the bending part 9 is perpendicular to the open corrugated steel sheet 6 as a whole, and the connecting members 7 are evenly arranged along the length direction of the second groove 15. The connecting parts 8 on both sides are respectively provided with first connecting rods 10, and the first connecting rods 10 extend along the length direction of the second groove 15 to connect the connecting parts 8 on the extension path. A second connecting rod 11 is arranged on the inner side of the top of the bending part 9, and the second connecting rod 11 extends along the length direction of the second groove 15 to connect the bending parts 9 on its extension path, thereby connecting each connecting member 7 arranged along the length direction of the second groove 15. The connecting members 7 between the parallel second grooves 15 are connected by a third connecting rod 12, and the third connecting rod 12 is perpendicular to the extension direction of the second groove 15. The connecting members 7 arranged on the open corrugated steel sheet 6 are connected as a whole by the first connecting rod 10, the second connecting rod 11 and the third connecting rod 12.

[0024] The top of the bent portion 9 of the connector 7 passes through the concrete casting layer 3 and is located at the road pavement layer 4, which is beneficial to improving the connectivity stability of each vertical layer in the bridge deck structure.

[0025] The bottom steel beam 1 of the corrugated steel plate layer 2 is an I-beam, and the I-beam is arranged along the length direction of the bridge.

[0026] The corrugated steel plate bridge deck structure has a wide range of applications, especially for the maintenance and reconstruction of the bridge deck of existing interchanges. The bridge deck elevation and the clearance under the bridge of the interchange are relatively high. The corrugated steel plate bridge deck structure has a simple hierarchical structure and can meet the bridge deck elevation and the clearance under the bridge of the interchange. In addition, during the maintenance and reconstruction process, the connecting mechanism and the corrugated steel plate can be prefabricated in the factory. On the one hand, it is beneficial to improve the consistency of the layout of the connecting parts, and on the other hand, it is beneficial to improve the on-site construction efficiency. Since the top of the connecting member 7 is arranged on the pavement pavement layer 4, it is beneficial to improve the stability of the connection between the corrugated steel plate layer 2, the concrete casting layer 3 and the pavement pavement layer 4. The connecting member 7 is connected in the horizontal and longitudinal directions by the first connecting rod 10, the second connecting rod 11 and the third connecting rod 12, which is beneficial to improve the overall structural strength of the bridge deck, thereby improving the bearing capacity of the bridge deck structure.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A corrugated steel plate bridge deck structure, comprising a steel beam (1), and a corrugated steel plate layer (2), a concrete pouring layer (3) and a road pavement layer (4) arranged on the steel beam (1) in order from bottom to top, characterized in that: The corrugated steel sheet layer (2) comprises a closed corrugated steel sheet (5) and an open corrugated steel sheet (6), the closed corrugated steel sheet (5) is provided with a plurality of groups of parallel first grooves (14), the open corrugated steel sheet (6) is provided with a plurality of groups of parallel second grooves (15), the corrugated steel sheet layer (2) is provided with a connecting mechanism, the connecting mechanism comprises a "J"-shaped connecting member (7), the connecting member (7) is perpendicular to the corrugated steel sheet layer (2), the connecting member (7) comprises a bending portion (9), and connecting portions (8) arranged at both ends of the bending portion (9), the connecting portions (8) on both sides are arranged at adjacent first grooves (14), and adjacent second grooves (15), the connecting members (7) are uniformly arranged along the length direction of the first groove (14), and the length direction of the second groove (15), the first groove (14) and the second groove (15) are respectively provided with a first connecting rod (10) extending along their respective length directions, the first connecting rod (10) being used to connect the connecting member (7) arranged along its extension direction.

2. The corrugated steel plate bridge deck structure according to claim 1, characterized in that: The first connecting rod (10) is arranged at the connecting parts (8) on both sides of the bending part (9), and a second connecting rod (11) is arranged on the inner side of the top of the bending part (9). The second connecting rod (11) is parallel to the first connecting rod (10), and the second connecting rod (11) is used to connect the connecting piece (7) arranged along its length direction.

3. The corrugated steel plate bridge deck structure according to claim 2, characterized in that: The connecting pieces (7) arranged in a row in the parallel first grooves (14) and the connecting pieces (7) arranged side by side in the parallel second grooves (15) are respectively provided with a third connecting rod (12), wherein the third connecting rod (12) is perpendicular to the first connecting rod (10).

4. The corrugated steel plate bridge deck structure according to claim 1, characterized in that: The closed-end corrugated steel plate (5) is arranged on the top of the steel beam (1), the first groove (14) extends along the length direction of the steel beam (1), the open-end corrugated steel plate (6) is arranged on both sides of the closed-end corrugated steel plate (5), and the second groove (15) is perpendicular to the extension direction of the first groove (14).

5. The corrugated steel plate bridge deck structure according to claim 4, characterized in that: The top of the connecting piece (7) is arranged on the road pavement layer (4).

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