Old bridge widening structure suitable for highway bridge

Abstract

The utility model relates to the technical field of bridges, in particular to an old bridge widening structure suitable for a highway bridge, which comprises a pier, a plurality of original bridge surfaces arranged on the pier, asphalt arranged on the original bridge surfaces, and widened bridge surfaces arranged on two sides of the original bridge surfaces. The old bridge widening structure suitable for the highway bridge comprises a bridge pier, a widening bridge deck and a fixing piece, the fixing piece is arranged on the bridge pier, and the fixing piece is connected with the widening bridge deck and used for connecting and fixing the widening bridge deck and an original bridge deck. After the fixing columns are formed, the inserting plates at the lower ends of the fixing rings are inserted into the fixing columns, then the fixing rings are fixed through bolts, the upper ends of the fixing beams are connected with the widened bridge deck through bolts, when the widened bridge deck and the fixing piece are integrally connected with an old bridge, only bolt holes need to be punched, damage to the old bridge is small, and the service life of the old bridge cannot be affected.

Description

Technical Field

[0001] The utility model relates to the technical field of bridges, in particular to an old bridge widening structure suitable for highway bridges. Background Art

[0002] Highway bridges are usually used to connect two opposing lands so that roads can pass through water or other terrain obstacles, such as rivers, valleys or railways. They help facilitate transportation and allow people and goods to cross obstacles more quickly and efficiently. With the development of highway construction in my country, many highways are in urgent need of widening and reconstruction to adapt to the growing traffic volume. At present, the widening and reconstruction of highway bridges mostly adopts the same superstructure form and connection structure as the original bridge, in order to achieve consistency in the force and deformation of the new and old structures.

[0003] When widening existing bridges, destructive operations such as planting reinforcement and excavating concrete need to be performed on the original structure of the old bridge, which can easily cause damage to the old bridge structure, reduce the service life of the original old bridge, and thus reduce the overall service life of the bridge. For this reason, we propose an old bridge widening structure suitable for highway bridges. Utility Model Content

[0004] A technical problem to be solved by this application is: how to avoid damaging the old bridge when widening the existing bridge.

[0005] The purpose of the utility model is to provide an old bridge widening structure suitable for highway bridges to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: an old bridge widening structure suitable for highway bridges, comprising a bridge pier, a plurality of original bridge decks are arranged on the bridge pier, and asphalt is arranged on the original bridge deck, and also includes:

[0007] Widening the bridge deck, wherein the widened bridge deck is arranged on both sides of the original bridge deck;

[0008] A fixing part is arranged on the bridge pier and connected to the widened bridge deck to connect and fix the widened bridge deck with the original bridge deck.

[0009] The measures to further optimize this technical solution are:

[0010] In some embodiments, the fixing part includes a fixing column mounted on the pier, a groove is formed on the fixing column, a fixing ring is provided on the pier, a plug plate is provided at the lower end of the fixing ring, a fixing beam is provided on the fixing ring, the upper end of the fixing beam is provided at the lower end of the widened bridge deck, a connecting plate is provided between the fixing rings, and an anti-overturning component is provided on the fixing beam.

[0011] In some embodiments, the fixing column is made of concrete.

[0012] In some embodiments, the anti-overturning assembly includes a connecting frame arranged between the fixed beam and the bridge pier, and a plurality of connecting bolts are arranged on the connecting frame.

[0013] In some embodiments, an anti-collision component is provided between the original bridge deck and the widened bridge deck to prevent the widened bridge deck from colliding with the original bridge deck and causing damage when the bridge deck shakes while driving.

[0014] In some embodiments, the anti-collision component includes a fixed plate arranged on the widened bridge deck, a protrusion is arranged at the lower end of the fixed plate, a groove 2 is opened on the protrusion, and the protrusion is made of steel.

[0015] In some embodiments, a rubber block is disposed at the lower end of the fixing plate.

[0016] The utility model has at least the following beneficial effects: during installation, a fixed column is first cast around the bridge pier using a mold and concrete, and after the fixed column is formed, the plug plate at the lower end of the fixed ring is inserted into the fixed column, and then the fixed ring is fixed with bolts, and then the upper end of the fixed beam is connected to the widened bridge deck with bolts, and when the widened bridge deck and the fixing parts are connected to the old bridge as a whole, only bolt holes need to be drilled, which causes little damage to the old bridge and will not affect the service life of the old bridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is an exploded schematic diagram of the fixed column structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the fixing member of the utility model;

[0020] Figure 4 This is an exploded schematic diagram of the anti-collision component structure of the utility model;

[0021] Figure 5 For this utility model Figure 4 A schematic diagram of the structure enlargement in the middle;

[0022] Figure 6 This is a schematic diagram of the explosion of the rubber block structure of the utility model;

[0023] Figure 7 For this utility model Figure 6 Enlarged schematic diagram of the structure at point B in the middle.

[0024] In the figure: 1-bridge pier; 2-original bridge deck; 3-asphalt; 4-widened bridge deck; 5-fixing piece; 51-fixing ring; 52-fixing column; 53-groove one; 54-insertion plate; 55-fixing beam; 56-connecting plate; 6-anti-overturning assembly; 61-connecting frame; 62-connecting bolt; 7-anti-collision assembly; 71-fixing plate; 72-protrusion; 73-groove two; 8-rubber block. DETAILED DESCRIPTION

[0025] 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.

[0026] Example 1

[0027] See also Figure 1-5 The utility model provides a technical solution: an old bridge widening structure suitable for highway bridges, including a bridge pier 1, a plurality of original bridge decks 2 are arranged on the bridge pier 1, asphalt 3 is arranged on the original bridge deck 2, and also includes:

[0028] Widen the bridge deck 4, and the widened bridge deck 4 is arranged on both sides of the original bridge deck 2;

[0029] The fixing member 5 is arranged on the bridge pier 1 and is connected to the widened bridge deck 4 to connect and fix the widened bridge deck 4 to the original bridge deck 2 .

[0030] The fixing member 5 includes a fixing column 52 sleeved on the pier 1, and a groove 53 is provided on the fixing column 52. A fixing ring 51 is fixedly connected to the pier 1, and a plug plate 54 is slidably connected to the lower end of the fixing ring 51. A fixing beam 55 is fixedly connected to the fixing ring 51, and the upper end of the fixing beam 55 is fixedly connected to the lower end of the widened bridge deck 4. A connecting plate 56 is connected between the fixing rings 51, and an anti-overturning component 6 is connected to the fixing beam 55. During installation, the fixing column 52 is first cast around the pier 1 using a mold and concrete. After the fixing column 52 is formed, the plug plate 54 at the lower end of the fixing ring 51 is inserted into the fixing column 52, and then the fixing ring 51 is fixed with bolts, and then the upper end of the fixing beam 55 is connected to the widened bridge deck 4 with bolts. When the widened bridge deck 4 and the fixing member 5 are connected to the old bridge as a whole, it is only necessary to drill bolt holes, which causes little damage to the old bridge and will not affect the service life of the old bridge.

[0031] The material of the fixing column 52 is concrete. The concrete structure is stronger and less prone to deformation. The fixing column 52 is sleeved on the pier 1, which is also a structural reinforcement for the pier 1 and improves the stability of the pier 1.

[0032] The anti-overturning assembly 6 includes a connecting frame 61 fixedly connected between the fixed beam 55 and the pier 1. A plurality of connecting bolts 62 are threadedly connected to the connecting frame 61. The connecting frame 61 is connected to the fixed beam 55 and the pier 1 through the connecting bolts 62 during installation, which causes less damage to the pier 1. At the same time, the connecting frame 61 can strengthen the connection between the widened bridge deck 4 and the old bridge, preventing the widened bridge deck 4 from tilting.

[0033] An anti-collision component 7 is connected between the original bridge deck 2 and the widened bridge deck 4 to prevent the widened bridge deck 4 from colliding with the original bridge deck 2 and causing damage when the bridge deck shakes during driving.

[0034] The anti-collision component 7 includes a fixing plate 71 fixedly connected to the widened bridge deck 4, a protrusion 72 fixedly connected to the lower end of the fixing plate 71, a groove 73 is provided on the protrusion 72, the protrusion 72 is made of steel, when in use, the bridge deck will shake due to the vehicles above, when the widened bridge deck 4 and the original bridge deck 2 shake, the protrusion 72 can be squeezed without colliding with each other, the groove 73 on the protrusion 72 will absorb the force generated by the widened bridge deck 4 and the original bridge deck 2 when shaking, thereby increasing the service life of the widened bridge deck 4 and the original bridge deck 2.

[0035] Example 2

[0036] See also Figure 1-7 The utility model provides a technical solution: an old bridge widening structure suitable for highway bridges, and embodiment 2 is an optimization based on embodiment 1.

[0037] A rubber block 8 is fixedly connected to the lower end of the fixing plate 71 . The rubber block 8 is relatively soft in texture and can better absorb the force generated by the widened bridge deck 4 and the original bridge deck 2 when shaking, thereby increasing the service life of the widened bridge deck 4 and the original bridge deck 2 .

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A widening structure for an old bridge suitable for a highway bridge, comprising a bridge pier (1), a plurality of original bridge decks (2) being arranged on the bridge pier (1), and asphalt (3) being arranged on the original bridge decks (2), characterized in that: Also included are: Widening the bridge deck (4), wherein the widened bridge deck (4) is arranged on both sides of the original bridge deck (2); A fixing member (5) is arranged on the bridge pier (1), and the fixing member (5) is connected to the widened bridge deck (4) to connect and fix the widened bridge deck (4) to the original bridge deck (2).

2. The old bridge widening structure applicable to highway bridges according to claim 1 is characterized in that: The fixing member (5) comprises a fixing column (52) sleeved on the pier (1), a groove (53) being provided on the fixing column (52), a fixing ring (51) being provided on the pier (1), a plug plate (54) being provided at the lower end of the fixing ring (51), a fixing beam (55) being provided on the fixing ring (51), the upper end of the fixing beam (55) being provided at the lower end of the widened bridge deck (4), a connecting plate (56) being provided between the fixing rings (51), and an anti-overturning component (6) being provided on the fixing beam (55).

3. The old bridge widening structure applicable to highway bridges according to claim 2 is characterized in that: The material of the fixing column (52) is concrete.

4. The old bridge widening structure applicable to highway bridges according to claim 3 is characterized in that: The anti-overturning assembly (6) comprises a connecting frame (61) arranged between a fixed beam (55) and a bridge pier (1), and a plurality of connecting bolts (62) are arranged on the connecting frame (61).

5. The old bridge widening structure applicable to highway bridges according to claim 4 is characterized in that: An anti-collision component (7) is arranged between the original bridge deck (2) and the widened bridge deck (4) to prevent the widened bridge deck (4) from colliding with the original bridge deck (2) and causing damage when the bridge deck shakes while driving.

6. The old bridge widening structure applicable to highway bridges according to claim 5 is characterized in that: The anti-collision component (7) comprises a fixing plate (71) arranged on the widened bridge deck (4); a protrusion (72) is arranged at the lower end of the fixing plate (71); a second groove (73) is provided on the protrusion (72); and the protrusion (72) is made of steel.

7. The old bridge widening structure applicable to highway bridges according to claim 6 is characterized in that: A rubber block (8) is provided at the lower end of the fixing plate (71).

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