Bridge deck widening device of deck type arch bridge concrete bridge deck system

Abstract

The utility model discloses a deck widening device of a deck type arch bridge concrete deck system, which is used for being installed on an arch column to widen a deck, the deck widening device comprises a steel beam, a deck panel and diagonal bracings, the steel beam is installed on the arch column, the deck panel is laid on the steel beam, the diagonal bracings are arranged on two sides of the steel beam, and the deck panel is arranged on the diagonal bracings. The two ends of the inclined supporting frame are fixedly connected with the steel beam and the bridge deck face plate so as to support the bridge deck face plate. The bridge deck widening device further comprises a pavement plate, the two arch columns form a group to jointly support the steel beam, the two bridge deck panels are transversely arranged and spliced with each other, the splicing position is located in the transverse center of the steel beam, and the pavement plate is laid at the splicing position of the two bridge deck panels and fixedly connected with the two bridge deck panels at the same time. And the pavement plate is fixedly connected with the bridge deck panel and the steel beams through fastening bolts.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge deck widening technical field, concretely relates to a bridge deck widening device of deck arch bridge concrete bridge deck system. BACKGROUND

[0002] With the increase of the vehicle population in the market, the early built highway traffic volume is increasingly saturated, and it is urgent to expand the highway to improve the traffic capacity, improve the quality and efficiency, and save resources. Among them, the bridge is the key point in the reconstruction and expansion, especially large bridges such as arch bridge, the deck arch bridge deck system directly bears the operating live load, which is transmitted to the arch rib through the bridge deck system beam body and arch pier column. The constant live load increase caused by the direct widening of the bridge deck system beam body will exceed the bearing capacity of the arch rib, so the direct expansion of the arch bridge is difficult to realize. In view of this, the utility model is provided. UTILITY MODEL CONTENTS

[0003] In order to solve the problem of large difficulty of existing bridge expansion, the utility model provides a bridge deck widening device of deck arch bridge concrete bridge deck system.

[0004] The utility model discloses a bridge deck widening device of deck arch bridge concrete bridge deck system for installing on the arch column to widen the bridge deck, the bridge deck widening device includes the bearing base, the steel beam, the bridge deck panel and the inclined bracing frame, the bearing base is installed on the arch column to install and fix the steel beam, the bridge deck panel is laid on the steel beam, the inclined bracing frame is arranged on both sides of the steel beam, and both ends of the inclined bracing frame are fixedly connected with the bearing base and the bridge deck panel to support the bridge deck panel, the bridge deck widening device further includes the paving plate, two arch columns are a group of common bearing base and provide support, the bridge deck panel is horizontally provided with two pieces, two bridge deck panels are spliced with each other and the splicing position is located at the horizontal center of the steel beam, the paving plate is laid on the splicing of two bridge deck panels and is fixedly connected with two bridge deck panels, and the paving plate is fixedly connected with the bridge deck panel and the steel beam through the fastening bolt.

[0005] In the embodiment of the utility model, the bridge deck widening device is provided with a plurality of along the path of the arch column, the steel beam includes the outer beam body and the inner beam body, the inner beam body is sleeved in the outer beam body and is connected through the fastening bolt, and the inner beam body and the outer beam body are formed in the length direction with the dislocation to supply the steel beam on two adjacent bridge deck widening devices with the plug-in connection.

[0006] In the embodiment of the utility model, the position of the plug-in of two adjacent steel beams is fixed through the fastening bolt.

[0007] In the embodiment of the utility model, the bridge deck widening device further includes a bearing base plate, the bearing base plate is arranged between the bearing base and the arch up stand column, one end of the inclined support frame is fixedly connected with the side surface of the bearing base plate, the other end is fixedly connected with a connecting plate, the connecting plate is attached to the lower side of the bridge deck panel and is fixedly connected with the bridge deck panel through a fastening bolt.

[0008] In the embodiment of the utility model, the bearing base plate is U-shaped, the bottom surface of the bearing base is attached to the upper surface of the bearing base plate and is fixedly connected through a fastening bolt, the side surface of the bearing base is attached to the side surface of the bearing base plate, and the steel beam is attached to the side surface of the bearing base plate from the side surface and is fixedly connected through a fastening bolt.

[0009] In the embodiment of the utility model, the bearing base plate is a steel plate, the inclined support frame is a circular steel pipe, and the inclined support frame is weldedly connected with the side surface of the bearing base plate.

[0010] In the embodiment of the utility model, the steel beam is provided with at least two in parallel, and the adjacent two steel beams are fixedly connected through a fastening bolt.

[0011] In the embodiment of the utility model, the bridge deck widening device further includes an intermediate panel, the intermediate panel is spliced between two bridge deck panels, the paving plate is covered on the intermediate panel and is fixedly connected with the bridge deck panel, the intermediate panel, and the steel beam through a fastening bolt.

[0012] In the embodiment of the utility model, the bridge deck panel adopts a prefabricated concrete panel.

[0013] In the embodiment of the utility model, the bearing base is a concrete pouring base, and a reinforcing steel bar is arranged in the arch up stand column, the reinforcing steel bar is inserted into the bearing base and is fixedly poured.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] By setting the bearing base and the bridge deck panel in a modularized mode, when the bridge deck widening operation is carried out, only the bearing base and the bridge deck panel need to be hoisted to the corresponding position by using hoisting equipment, and the paving plate is fixedly connected with the bridge deck panel, so that the widening effect of the bridge deck can be realized, the construction difficulty is greatly reduced, and the construction efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings are used to provide further understanding of the embodiments of the utility model and constitute a part of the specification, and are used together with the specific embodiments below to explain the embodiments of the utility model, but do not constitute limitations on the embodiments of the utility model, and in the drawings:

[0017] Figure 1 is a perspective structural schematic view of a bridge deck widening device provided by an embodiment of the present application;

[0018] Figure 2 is a side elevation structural schematic view of a bridge deck widening device provided by an embodiment of the present application;

[0019] Figure 3 is an exploded structural schematic view of a bridge deck widening device provided by an embodiment of the present application;

[0020] Figure 4 is an exploded structural schematic view of a bridge deck widening device provided by another embodiment of the present application.

[0021] Explanation of reference signs

[0022] 1, bridge deck widening device; 2, arch up stand column; 11, bearing base; 12, steel beam; 13, bridge deck panel; 14, inclined support frame; 15, paving plate; 16, bearing bottom plate; 17, middle connecting plate; 18, connecting plate; 121, outer beam body; 122, inner beam body; 131, top steel plate; 132, light steel frame; 133, bottom steel plate; 134, U-shaped steel rib; 135, T-shaped steel. DETAILED DESCRIPTION

[0023] The specific embodiments described hereinbelow are intended to be illustrative only and are not intended to limit the present application.

[0024] Please refer to Figures 1-3 The present application provides a bridge deck widening device 1 of an upper bearing type arch bridge concrete bridge deck system to solve the problems in the prior art, which is used for being installed on arch up stand columns 2 to widen the bridge deck. The bridge deck widening device 1 comprises a bearing base 11, a steel beam 12, a bridge deck panel 13 and an inclined support frame 14. The bearing base 11 is installed on the arch up stand columns 2 to install and fix the steel beam 12. The bridge deck panel 13 is laid on the steel beam 12. The inclined support frame 14 is arranged on both sides of the steel beam 12. The two ends of the inclined support frame 14 are fixedly connected with the bearing base 11 and the bridge deck panel 13 respectively to support the bridge deck panel 13.

[0025] The bridge deck widening device 1 further comprises a paving plate 15. Two arch up stand columns 2 are a group to provide support for the bearing base 11. The bridge deck panel 13 is horizontally arranged with two blocks. The two bridge deck panels 13 are spliced with each other and the splicing position is located at the horizontal center of the steel beam 12. The paving plate 15 is laid at the splicing position of the two bridge deck panels 13 and is fixedly connected with the two bridge deck panels 13 at the same time. The paving plate 15 is fixedly connected with the bridge deck panel 13 and the steel beam 12 through fastening bolts.

[0026] The widening effect of the bridge deck is realized by mounting the bearing base 11 on the arch pier 2, bearing two bridge deck panels 13 through the steel beam 12, and fixedly connecting the splicing position of the two bridge deck panels 13 through the paving plate 15, and the triangular support structure is formed on both sides of the steel beam 12 by using the diagonal bracing frame 14 to support the bridge deck panel 13, so as to prevent the installation stability of the bridge deck from being affected due to the suspension between the bridge deck panel 13 and the steel beam 12, that is, under the common support of the steel beam 12 and the diagonal bracing frame 14 on the bridge deck panel 13, the bridge deck panel 13 can be stably laid on the steel beam 12, and the safety and stability of the vehicle driving on the bridge deck panel 13 are ensured.

[0027] When the bridge deck widening operation is performed, the existing bridge deck and the bent cap are first removed from the arch pier 2, and then the bridge deck widening device 1 of the utility model is mounted on the arch pier 2, when mounting, the bearing base 11 is first hoisted to the arch pier 2, and the bearing base 11 is stably connected with the arch pier 2 through pouring, then one of the bridge deck panels 13 is hoisted to the bearing base 11, so that the bearing base 11 and the diagonal bracing frame 14 on one side provide support for the bridge deck panel 13, then the other bridge deck panel 13 is hoisted to the bearing base 11, and the bearing base 11 and the diagonal bracing frame 14 on the other side provide support for the bridge deck panel 13, after the two bridge deck panels 13 are hoisted to the steel beam 12, the positions of the two bridge deck panels 13 are adjusted to splice the two bridge deck panels 13, then the paving plate 15 is laid on the splicing position of the two bridge deck panels 13, and the paving plate 15 is fixedly connected with the two bridge deck panels 13, so that the paving plate 15 and the two bridge deck panels 13 form an integral bridge deck, thereby achieving the widening effect of the bridge deck and improving the traffic capacity of the bridge deck.

[0028] Since the bearing base 11 and the bridge deck panel 13 are modularly designed, when the operation is performed, the bearing base 11 and the bridge deck panel 13 only need to be hoisted to the corresponding position by using the hoisting equipment, and then the paving plate 15 is fixedly connected with the bridge deck panel 13, so that the widening effect of the bridge deck is realized, the construction difficulty is greatly reduced, and the construction efficiency is improved.

[0029] In the embodiment of the utility model, the bridge deck panel 13 adopts a prefabricated concrete panel, so as to improve the construction efficiency of the bridge deck widening operation, speed up the construction progress, and also reduce the risk of quality problems caused by the limitation of the on-site construction conditions, and ensure the quality and performance of the bridge deck.

[0030] In another embodiment of the utility model, the bridge deck panel 13 is composed of a light steel frame 132 and a steel plate, Figure 3As shown, the steel plate comprises a top steel plate 131 and a bottom steel plate 133, and a light steel frame 132 is arranged between the top steel plate 131 and the bottom steel plate 133 and is welded and fixed, since the density of the steel material itself is greater than the density of the concrete, the steel plate of the utility model adopts a thin steel plate with a thickness of 14-16mm, the thickness is thinner than the concrete plate with a thickness of 20-30cm, so that the overall weight of the bridge deck widening device 1 can be reduced, the weight of the bridge deck widening device 1 is prevented from being too large to increase the bearing weight of the pier, and the safety of the bridge deck widening device 1 is improved.

[0031] Please refer to Figure 3 In another embodiment of the utility model, the bridge deck panel 13 comprises a top steel plate 131, a U-shaped steel rib 134 and a T-shaped steel 135, the U-shaped steel rib 134 is welded between the top steel plate 131 and the T-shaped steel 135, which reduces the overall weight of the bridge deck widening device 1 and prevents the weight of the bridge deck widening device 1 from being too large to increase the bearing weight of the pier. The bottom of the steel beam 12 is welded with a U-shaped steel, one end of the diagonal bracing frame 14 is welded and fixed with the U-shaped steel, and the other end is fixedly connected with the T-shaped steel 135 to support the top steel plate 131, thereby improving the stability and safety of the bridge deck panel 13.

[0032] Please refer to Figure 4 In the embodiment of the utility model, the bearing base 11 is a concrete pouring base, and steel bars are arranged in the arch column 2, the steel bars are inserted into the bearing base 11 and are fixed by pouring, so that the bearing base 11 and the arch column 2 form an integral structure, the anchoring effect of the steel bars increases the connection strength between the two, can effectively transfer the load, and improves the stability of the bearing base 11 on the arch column 2.

[0033] In the embodiment of the utility model, a plurality of bridge deck widening devices 1 are arranged along the path of the arch column 2, the steel beam 12 comprises an outer beam body 121 and an inner beam body 122, the inner beam body 122 is sleeved in the outer beam body 121 and is connected by a fastening bolt, the inner beam body 122 and the outer beam body 121 are dislocated in the length direction to provide insertion connection of the steel beams 12 on the adjacent two bridge deck widening devices 1, so that when the adjacent two bridge deck widening devices 1 are connected, the outer beam body 121 of one of the bridge deck widening devices 1 is inserted and connected with the inner beam body 122 of the other bridge deck widening device 1, and the fastening bolt is used to fixedly connect the inner beam body 122 and the outer beam body 121 of the two bridge deck widening devices 1, so that the two bridge deck widening devices 1 are fixedly connected, which is simple, fast and firm. By analogy, in the bridge deck widening project, a plurality of bridge deck widening devices 1 are connected to form a widened bridge deck, the connection tightness between the adjacent steel beams 12 is improved, the load can be better transferred, the overallity and stability of the entire bridge deck after widening are ensured, and the bridge deck widening project with different length and structure requirements is effectively adapted.

[0034] In the embodiment of the utility model, bridge deck widening device 1 still includes bearing bottom plate 16, bearing bottom plate 16 is set up between bearing pedestal 11 and arch upper stand 2, one end of inclined bracing frame 14 is fixedly connected with the side surface of bearing bottom plate 16, the other end is fixed with connecting plate 18, connecting plate 18 is pasted below bridge deck panel 13 and is fixedly connected with bridge deck panel 13 through fastening bolt, to provide stable support effect for bridge deck under the fixed connection of connecting plate 18 and bridge deck panel 13, enhance the stability of bridge deck panel 13, improved the overall carrying capacity and structural safety of bridge deck widening device 1.

[0035] In the embodiment of the utility model, bearing bottom plate 16 is U-shaped, the bottom surface of bearing pedestal 11 is pasted on the upper surface of bearing bottom plate 16 and is fixedly connected through fastening bolt, the side surface of bearing pedestal 11 is pasted on the side surface of bearing bottom plate 16, steel beam 12 is pasted on the side surface of bearing bottom plate 16 from the side surface and is fixedly connected through fastening bolt, so that the bottom surface of bearing pedestal 11 and steel beam 12 are fixed on bearing bottom plate 16 through fastening bolt, increase the connecting strength between bearing pedestal 11 and bearing bottom plate 16, steel beam 12, make steel beam 12, bearing pedestal 11 and bearing bottom plate 16 form a whole structure, improve the structural stability of whole bridge deck widening device 1, reduce the risk of structural damage caused by the relative displacement between parts.

[0036] In the embodiment of the utility model, bearing bottom plate 16 is steel plate, inclined bracing frame 14 is round steel pipe, inclined bracing frame 14 is weldedly connected with the side surface of bearing bottom plate 16, to make inclined bracing frame 14 and bearing bottom plate 16 form fixed connection, then make inclined bracing frame 14 provide support for bridge deck panel 13 after the connection of inclined bracing frame 14 and bridge deck panel 13 through connecting plate 18.

[0037] In the embodiment of the utility model, steel beam 12 is provided with at least two side by side, and the adjacent two steel beams 12 are fixedly connected through fastening bolt, so as to increase the support contact area of steel beam 12 for bridge deck panel 13, and also can reduce the volume and weight of single steel beam 12, facilitate hoisting equipment to hoist steel beam 12, multiple steel beams 12 can effectively disperse load, reduce the stress of single steel beam 12, reduce the risk of deformation or damage of steel beam 12, improve the overall carrying capacity and safety of bridge deck widening device 1.

[0038] In the embodiment of the utility model, bridge deck widening device 1 still include intermediate panel, intermediate panel splice in two bridge deck panel 13 between, paving plate 15 cover on intermediate panel and through fastening bolt and bridge deck panel 13, intermediate panel, steel beam 12 fixed connection, by this increase bridge deck splice place's strength and integrity, in the vehicle driving process, intermediate panel can share a part of load, reduce bridge deck panel 13 splice place's stress concentration, prolong the service life of bridge deck. In the utility model, unless another definite provision and limitation, the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" are based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicates that the horizontal height of the first feature is less than that of the second feature, so it cannot be understood as a limitation of the utility model.

[0039] The preferred embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited thereto. Within the technical concept of the utility model, the technical solution of the utility model can be subjected to various simple modifications, including the combination of various specific technical features in any suitable manner. In order to avoid unnecessary repetition, the utility model will not further describe various possible combination manners. However, these simple modifications and combinations should also be regarded as the disclosed content of the utility model and belong to the protection scope of the utility model.

[0040] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as a limitation of the utility model. Those skilled in the art can make changes, modifications, replacements and modifications to the above-mentioned embodiments within the scope of the utility model.

Claims

1. A deck widening device for a concrete deck system of a through arch bridge for installation on an arch upstand to widen the deck, characterised in that, The bridge deck widening device comprises a steel beam, a bridge deck panel and an inclined support frame, the steel beam is installed on the arch upstand column, the bridge deck panel is laid on the steel beam, the inclined support frame is arranged on both sides of the steel beam, and both ends of the inclined support frame are fixedly connected with the steel beam and the bridge deck panel respectively to support the bridge deck panel. The bridge deck widening device further comprises a paving plate, two arch upstand columns form a group to provide support for the steel beam, the bridge deck panel is transversely provided with two pieces, the two bridge deck panels are spliced with each other, and the splicing position is located at the transverse center of the steel beam, the paving plate is laid on the splicing position of the two bridge deck panels and is fixedly connected with the two bridge deck panels, and the paving plate is fixedly connected with the bridge deck panel and the steel beam through fastening bolts.

2. The deck widening device for a concrete deck system of a through arch bridge according to claim 1, characterized in that, A plurality of bridge deck widening devices are arranged along the path of the arch upstand column, the steel beam comprises an outer beam body and an inner beam body, the inner beam body is sleeved inside the outer beam body and is connected through fastening bolts, the inner beam body and the outer beam body are staggered in the length direction to provide insertion connection for the steel beams on two adjacent bridge deck widening devices, and the insertion positions of the two adjacent steel beams are fixed through fastening bolts.

3. The deck widening device for a concrete deck system of a through arch bridge according to claim 2, characterized in that, The bridge deck panel comprises a top steel plate, a light steel frame and a bottom steel plate, and the light steel frame is welded between the top steel plate and the bottom steel plate.

4. The deck widening device for a concrete deck system of a through arch bridge according to claim 2, characterized in that, The bridge deck panel comprises a top steel plate, a U-shaped steel rib and a T-shaped steel, and the U-shaped steel rib is welded between the top steel plate and the T-shaped steel.

5. The deck widening device for a concrete deck system of a through arch bridge according to claim 1, wherein The bridge deck widening device further comprises a bearing base and a bearing plate, the bearing plate is arranged between the bearing base and the arch upstand column, one end of the inclined support frame is fixedly connected with the side surface of the bearing plate, the other end is fixedly connected with a connecting plate, the connecting plate is attached to the lower surface of the bridge deck panel and is fixedly connected with the bridge deck panel through fastening bolts.

6. The deck widening device for a concrete deck system of a through arch bridge according to claim 5, wherein The bearing plate is in a U shape, the bottom surface of the bearing base is attached to the upper surface of the bearing plate and is fixedly connected through fastening bolts, the side surface of the bearing base is attached to the side surface of the bearing plate, and the steel beam is attached to the side surface of the bearing plate from the side surface and is fixedly connected through fastening bolts.

7. The deck widening device for a deck arch bridge concrete deck system according to claim 6, wherein The bearing plate is a steel plate, the inclined support frame is a circular steel pipe, and the inclined support frame is welded with the side surface of the bearing plate.

8. The deck widening device for a concrete deck system of a through arch bridge according to claim 5, wherein The steel beam is arranged side by side with at least two, and the adjacent two steel beams are fixedly connected through fastening bolts.

9. The deck widening device for a deck arch bridge concrete deck system according to claim 1, wherein The bridge deck widening device further comprises an intermediate panel, the intermediate panel is spliced between the two bridge deck panels, the paving plate is covered on the intermediate panel and is fixedly connected with the bridge deck panel, the intermediate panel, the steel beam through fastening bolts, and the bridge deck panel adopts a prefabricated concrete panel.

10. The deck widening device for a concrete deck system of a through arch bridge according to claim 5, wherein The bearing base is a concrete pouring base, and a steel bar is arranged in the arch upstand column, the steel bar is inserted into the bearing base and is fixedly poured.

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