Bridge anti-risk reinforcing structure

Abstract

The utility model relates to a bridge anti-risk reinforcing structure which comprises a plurality of evenly-distributed concrete expanded foundations, a steel pipe column pre-buried base is pre-buried in the center of the top of each concrete expanded foundation, a steel pipe column is installed on each steel pipe column pre-buried base, and a supporting steel beam is installed at the top ends of the steel pipe columns located in the same horizontal row. A jack is installed at the top end of the supporting steel beam and located below each precast beam of the bridge, and a supporting steel plate used for supporting the precast beams of the bridge is installed at the top end of the jack. The method has the beneficial effects that the precast beam of the bridge is supported and reinforced through cooperation of the concrete expanded foundation, the steel pipe column pre-buried seats, the steel pipe columns, the supporting steel beams, the jacks and the supporting steel plates, the method adapts to the elevation and line shape of the bridge, and the bearing capacity and stability of the bridge are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a bridge risk prevention reinforcement structure. Background Art

[0002] When construction is being carried out around a bridge, or an existing bridge is being renovated, such as demolishing half of it and rebuilding it, while the other half is open to traffic, it is essential to reinforce the existing bridge to prevent risks.

[0003] Bridge reinforcement is to take certain measures to improve the bearing capacity and performance of components or the entire structure to meet the requirements of structural safety and use. With the rapid development of China's economy, bridges have become an indispensable part of modern life. However, due to various limitations during the initial construction and long-term water erosion, the bridge foundation may suffer from varying degrees of damage, such as exposed steel bars and concrete damage, which seriously affects the development of modern transportation. Therefore, in order to ensure the safety and stability of the bridge, extend its service life, and ensure smooth traffic, it is necessary to reinforce the existing bridges. Utility Model Content

[0004] The purpose of the utility model is to overcome the above problems existing in the prior art and provide a bridge risk prevention reinforcement structure.

[0005] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0006] A bridge risk prevention reinforcement structure comprises a plurality of evenly distributed concrete enlarged foundations, a steel pipe column embedded seat is embedded in the top center of each concrete enlarged foundation, a steel pipe column is installed on each of the steel pipe column embedded seats, a supporting steel beam is installed at the top of the steel pipe columns in the same horizontal row, a jack is installed at the top of the supporting steel beam under each prefabricated beam of the bridge, and a supporting steel plate for supporting the prefabricated beam of the bridge is installed on the top of the jack.

[0007] Wherein, a rubber sheet is placed on the top of the supporting steel plate, and the jack is extended so that the rubber sheet is clamped between the supporting steel plate and the bottom end of the prefabricated beam of the bridge.

[0008] Among them, a transverse connecting beam is fixedly installed between two adjacent steel pipe columns located in the same horizontal row, and a longitudinal connecting beam is fixedly installed between two adjacent steel pipe columns located in the same vertical column.

[0009] Among them, the embedded seat of the steel pipe column includes a rectangular embedded steel plate, and the thickness of the embedded steel plate is at least 20 mm, and N embedded anchor bolts arranged in a circular array are welded on the embedded steel plate, and a rectangular steel base plate is welded at the bottom end of the steel pipe column, and N through holes arranged in a circular array are opened on the steel base plate, and the top of the embedded anchor bolt passes through the through hole from bottom to top and is screwed with at least one anti-loosening nut; the top of the steel pipe column is welded with a rectangular steel top plate.

[0010] Each of the supporting steel beams is formed by welding two H-shaped steels parallel to each other along their adjacent long sides.

[0011] Wherein, a steel rib is welded between the outer side of the web and the flange of the supporting steel beam and directly below each jack, and the steel rib is perpendicular to the long axis of the supporting steel beam.

[0012] Among them, four limiting steel plates arranged in a circular array are welded around the top end of the supporting steel beam and each jack.

[0013] Wherein, the thickness of the supporting steel plate is at least 25 mm.

[0014] Wherein, the outer diameter of the steel pipe column is at least 630 mm, and the wall thickness of the steel pipe column is at least 10 mm.

[0015] The beneficial effects of the utility model are as follows: the prefabricated beams of the bridge are supported and reinforced by expanding the foundation with concrete, pre-embedded seats for steel pipe columns, steel pipe columns, supporting steel beams, jacks and supporting steel plates, so as to adapt to the elevation and line shape of the bridge and improve the bearing capacity and stability of the bridge; transverse connecting beams and longitudinal connecting beams are installed between the steel pipe columns to improve the stability between the steel pipe columns; the use of rubber sheets can buffer the vibration brought to the reinforcement system by the force transmitted by the traffic load, so as to improve the comfort and safety of the bridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the bridge risk prevention reinforcement structure in the utility model;

[0018] Figure 2 It is a structural schematic diagram of the cross section of the bridge risk prevention reinforcement structure in the utility model;

[0019] Figure 3It is a structural schematic diagram of a combination of a concrete enlarged foundation, a steel pipe column embedded seat, a steel pipe column, a supporting steel beam, a jack, a supporting steel plate, and a rubber plate located in the same horizontal row in the utility model;

[0020] Figure 4 It is a partial structural diagram of the combination of the concrete enlarged foundation, the embedded seat of the steel pipe column, the steel pipe column, the supporting steel beam, the jack, the supporting steel plate and the rubber plate in the utility model;

[0021] Figure 5 It is a structural schematic diagram of the utility model in which the embedded seat of the steel pipe column is embedded in the concrete enlarged foundation;

[0022] Figure 6 It is a structural schematic diagram of the steel pipe column in the utility model;

[0023] Explanation of numbers in the figure: concrete enlarged foundation 1, embedded seat for steel pipe column 2, embedded steel plate 21, embedded anchor bolt 22, steel pipe column 3, steel bottom plate 31, through hole 32, steel top plate 33, anti-loosening nut 4, transverse connecting beam 5, longitudinal connecting beam 6, supporting steel beam 7, steel rib plate 71, limiting steel plate 72, jack 8, supporting steel plate 9, rubber plate 10, bridge 100, precast beam 101. DETAILED DESCRIPTION

[0024] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0025] like Figures 1 to 6 As shown, a bridge risk prevention reinforcement structure comprises a plurality of evenly distributed concrete enlarged foundations 1, a steel pipe column embedded seat 2 is embedded in the top center of each concrete enlarged foundation 1, a steel pipe column 3 is installed on each steel pipe column embedded seat 2, the steel pipe column embedded seat 2 comprises a rectangular embedded steel plate 21, and the thickness of the embedded steel plate 21 is at least 20 mm, 8 embedded anchor bolts 22 arranged in a circular array are welded on the embedded steel plate 21, a rectangular steel bottom plate 31 is welded at the bottom end of the steel pipe column 3, 8 through holes 32 arranged in a circular array are opened on the steel bottom plate 31, and the top of the embedded anchor bolt 22 passes through the through hole from bottom to top and is screwed with at least one anti-loosening nut 4; a rectangular steel top plate 33 is welded at the top of the steel pipe column 3.

[0026] The outer diameter of the steel pipe column 3 is at least 630 mm, and the wall thickness of the steel pipe column 3 is at least 10 mm.

[0027] In order to improve the stability between the steel pipe columns 3, a transverse connecting beam 5 is fixedly installed between two adjacent steel pipe columns 3 in the same transverse row, and a longitudinal connecting beam 6 is fixedly installed between two adjacent steel pipe columns 3 in the same longitudinal column.

[0028] A supporting steel beam 7 is installed at the top of the steel pipe column 3 in the same horizontal row, and a jack 8 is installed at the top of the supporting steel beam 7 under each precast beam of the bridge, and a supporting steel plate 9 for supporting the precast beam of the bridge is installed at the top of the jack 8, and the thickness of the supporting steel plate 9 is at least 25 mm.

[0029] The precast beams of the bridge are supported and reinforced by expanding the foundation with concrete, embedded seats for steel pipe columns, steel pipe columns, supporting steel beams, jacks, and supporting steel plates to adapt to the elevation and line shape of the bridge and improve the bearing capacity and stability of the bridge.

[0030] A rubber sheet 10 is placed on the top of the supporting steel plate 9, and the jack 8 is extended so that the rubber sheet 10 is sandwiched between the supporting steel plate 9 and the bottom end of the precast beam 101 of the bridge 100. The use of the rubber sheet can buffer the vibration brought to the reinforcement system by the force transmitted by the traffic load, thereby improving the comfort and safety of the bridge.

[0031] In order to ensure the bearing capacity and bending strength of the supporting steel beam 7, each supporting steel beam 7 is formed by welding two parallel H-shaped steels along their adjacent long sides.

[0032] In order to improve the strength of the supporting steel beam 7 at the installation position of the jack 8, a steel rib 71 is welded between the outer side of the web and the flange of the supporting steel beam 7 directly below each jack 8, and the steel rib 71 is perpendicular to the long axis of the supporting steel beam 7.

[0033] In order to prevent the jacks 8 from falling over due to unbalanced force, four limiting steel plates 72 arranged in a circular array are welded to the top of the supporting steel beam 7 around each jack 8 .

[0034] The embedded steel plate 21, steel pipe column 3, steel bottom plate 31, steel top plate 33, transverse connecting beam 5, longitudinal connecting beam 6, supporting steel beam 7, steel rib plate 71, limiting steel plate 72 and supporting steel plate 9 are all made of Q345B steel material.

[0035] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A bridge risk prevention reinforcement structure, characterized in that: It comprises a number of evenly distributed concrete enlarged foundations, each of which has a steel pipe column embedded seat in the top center, a steel pipe column installed on each of the steel pipe column embedded seats, a supporting steel beam installed on the top of the steel pipe columns in the same horizontal row, a jack installed on the top of the supporting steel beam under each prefabricated beam of the bridge, and a supporting steel plate for supporting the prefabricated beam of the bridge installed on the top of the jack.

2. The bridge risk prevention reinforcement structure according to claim 1 is characterized in that: A rubber sheet is placed on the top of the supporting steel sheet, and the jack is extended so that the rubber sheet is clamped between the supporting steel sheet and the bottom end of the prefabricated beam of the bridge.

3. The bridge risk prevention reinforcement structure according to claim 1 is characterized in that: A transverse connecting beam is fixedly installed between two adjacent steel pipe columns in the same transverse row, and a longitudinal connecting beam is fixedly installed between two adjacent steel pipe columns in the same longitudinal column.

4. The bridge risk prevention reinforcement structure according to claim 1 is characterized in that: The embedded seat of the steel pipe column includes a rectangular embedded steel plate, and the thickness of the embedded steel plate is at least 20 mm. N embedded anchor bolts arranged in a circular array are welded on the embedded steel plate. A rectangular steel base plate is welded at the bottom end of the steel pipe column. N through holes arranged in a circular array are opened on the steel base plate, and the top of the embedded anchor bolt passes through the through hole from bottom to top and is screwed with at least one anti-loosening nut; a rectangular steel top plate is welded at the top of the steel pipe column.

5. The bridge risk prevention reinforcement structure according to claim 1 is characterized in that: Each of the supporting steel beams is formed by welding two H-shaped steels parallel to each other along their adjacent long sides.

6. The bridge risk prevention reinforcement structure according to claim 1 is characterized in that: A steel rib is welded between the outer side of the web and the flange of the supporting steel beam and is located directly below each jack, and the steel rib is perpendicular to the long axis of the supporting steel beam.

7. The bridge risk prevention reinforcement structure according to claim 1 is characterized in that: The top end of the supporting steel beam is welded with four limiting steel plates arranged in a circular array around each jack.

8. The bridge risk prevention reinforcement structure according to claim 1 is characterized by: The thickness of the supporting steel plate is at least 25 mm.

9. The bridge risk prevention reinforcement structure according to claim 1 is characterized in that: The outer diameter of the steel pipe column is at least 630 mm, and the wall thickness of the steel pipe column is at least 10 mm.

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