Concrete composite structure of multi-arch corrugated steel bridge

Abstract

The utility model discloses a multi-arch corrugated steel bridge concrete composite structure which comprises corrugated steel retaining walls, horseshoe-shaped corrugated steel pipe culverts, annular steel beams and a reinforced concrete foundation, the corrugated steel retaining walls are vertically arranged on the reinforced concrete foundation, and stand columns are arranged between the adjacent corrugated steel retaining walls. The two ends of the horseshoe-shaped corrugated steel pipe culvert are each connected with a corrugated steel retaining wall, the positions, close to the two ends, of the horseshoe-shaped corrugated steel pipe culvert are each provided with an annular steel beam, and a plurality of wall pull rods are arranged between the corrugated steel retaining walls and the annular steel beams. A plurality of connecting plates are sequentially arranged on the annular steel beam in the length direction of the annular steel beam, and the annular steel beam is connected with the horseshoe-shaped corrugated steel pipe culvert through the connecting plates. The corrugated plate and the concrete structure are organically combined, the construction cost of the continuous arch bridge can be reduced, and the construction period can be shortened.

Description

Technical Field

[0001] The utility model relates to the field of multi-arch bridge structures, in particular to a multi-arch corrugated steel bridge concrete composite structure. Background Art

[0002] Existing arch bridges are mostly reinforced concrete structures, which require a long time to pour and maintain. Concrete pouring must be done in layers, and each layer requires curing to ensure the strength and quality of the concrete. Consequently, existing arch bridges suffer from a long construction cycle.

[0003] Corrugated steel panels offer strong deformation resistance, quick and easy installation, and reduced construction time. They are also low-cost and environmentally friendly. They are widely used in transportation and municipal engineering projects to construct culverts, tunnels, underground passages, and underground pipelines. The applicant has organically combined corrugated steel panels with concrete structures to propose a composite concrete structure for a multi-arch corrugated steel bridge, aiming to reduce construction costs and shorten the construction period. Utility Model Content

[0004] The purpose of the utility model is to provide a multi-arch corrugated steel bridge concrete composite structure, which organically combines the corrugated plate and the concrete structure, thereby reducing the construction cost of the multi-arch bridge and shortening the construction period.

[0005] The utility model is achieved in this way:

[0006] A composite concrete structure of a multi-arch corrugated steel bridge comprises a corrugated steel retaining wall, a horseshoe-shaped corrugated steel pipe culvert, an annular steel beam and a reinforced concrete foundation. The corrugated steel retaining wall is vertically arranged on the reinforced concrete foundation, and columns are arranged between adjacent corrugated steel retaining walls. A corrugated steel retaining wall is connected to each end of the horseshoe-shaped corrugated steel pipe culvert, and an annular steel beam is arranged near each end of the horseshoe-shaped corrugated steel pipe culvert. A plurality of wall tie rods are arranged between the corrugated steel retaining wall and the annular steel beam.

[0007] Preferably, the columns are made of I-beams, and the columns are vertically installed on a reinforced concrete foundation. Wall tie rods are also provided between the columns and the annular steel beams.

[0008] Preferably, the distance between the annular steel beams provided at both ends of the horseshoe-shaped corrugated steel pipe culvert and the ends of the horseshoe-shaped corrugated steel pipe culvert is 1.5m-2.5m.

[0009] Preferably, the annular steel beam is formed by bending an I-beam, and a plurality of connecting plates are sequentially provided on the annular steel beam along its length direction. The annular steel beam is connected to the horseshoe-shaped corrugated steel culvert through the plurality of connecting plates.

[0010] Preferably, the connecting plate passes through the web of the annular steel beam, and the two ends of the connecting plate are respectively located on both sides of the annular steel beam. The two ends of the connecting plate are connected to the horseshoe-shaped corrugated steel culvert through a bolt and nut assembly.

[0011] Preferably, a T-shaped connector is provided between adjacent horseshoe-shaped corrugated steel culverts. The T-shaped connector is arranged horizontally and includes a transverse portion and a longitudinal portion. The two ends of the transverse portion are respectively connected to the annular steel beams provided on the adjacent horseshoe-shaped corrugated steel culverts. One end of the longitudinal portion is connected to the transverse portion, and the other end is connected to the column.

[0012] Preferably, the transverse portion and the longitudinal portion of the T-shaped connector are both made of I-beams, the transverse portion and the longitudinal portion are welded together, the transverse portion is welded together to the annular steel beam, and the longitudinal portion is welded together to the column.

[0013] Preferably, a plurality of T-shaped connectors are provided at either end of the horseshoe-shaped corrugated steel pipe culvert, and the plurality of T-shaped connectors at either end of the horseshoe-shaped corrugated steel pipe culvert are sequentially arranged in the up-down direction.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The utility model organically combines the corrugated plate and the concrete structure, which can reduce the construction cost of the arch bridge and shorten the construction period.

[0016] 2. An annular steel beam is provided at each end of the horseshoe-shaped corrugated steel pipe culvert of the present invention, and a plurality of wall tie rods are provided between the corrugated steel retaining wall and the annular steel beam, so that the corrugated steel retaining wall is more firmly arranged.

[0017] 3. The present invention provides T-shaped connectors between adjacent horseshoe-shaped corrugated steel pipe culverts. These connectors comprise a transverse portion and a longitudinal portion. The transverse portions of the T-shaped connectors are welded to the annular steel beams provided on the adjacent horseshoe-shaped corrugated steel pipe culverts at both ends. The longitudinal portion, on one end, is welded to the transverse portion, and on the other end, to the vertical column. Therefore, the T-shaped connectors enhance the structural strength and rigidity of adjacent horseshoe-shaped corrugated steel pipe culverts, thereby increasing the structural strength and rigidity of the entire composite structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0019] Figure 2 It is a top view of the utility model as a whole;

[0020] Figure 3 This is a structural diagram of two adjacent horseshoe-shaped corrugated steel pipe culverts connected by a T-shaped connector in the present invention;

[0021] Figure 4 It is a cross-sectional view showing the shapes and relative positions of adjacent horseshoe-shaped corrugated steel pipe culverts and annular steel beams of the present invention;

[0022] Figure 5 This is an enlarged detail diagram of the horseshoe-shaped corrugated steel pipe culvert and the annular steel beam of the present invention being connected via a connecting plate and a bolt and nut assembly.

[0023] In the figure: 1. Corrugated steel retaining wall; 2. Horseshoe-shaped corrugated steel pipe culvert; 3. Annular steel beam; 4. Reinforced concrete foundation; 5. Column; 6. Wall tie rod; 7. Connecting plate; 8. Bolt and nut assembly; 9. T-type connector. DETAILED DESCRIPTION

[0024] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0025] The following is a further description with reference to the accompanying drawings and specific embodiments:

[0026] Example 1

[0027] like Figure 1 、 Figure 2 and Figure 4 As shown, a composite concrete structure of a continuous arch corrugated steel bridge includes a corrugated steel retaining wall 1, a horseshoe-shaped corrugated steel pipe culvert 2, a circular steel beam 3 and a reinforced concrete foundation 4, and two reinforced concrete foundations 4 are provided. The horseshoe-shaped corrugated steel pipe culvert 2 adopts a 381*140 large wave structure. There are four horseshoe-shaped corrugated steel pipe culverts 2. Two circular steel beams 3 are provided at both ends of each horseshoe-shaped corrugated steel pipe culvert 2. The distance between the circular steel beams 3 provided at both ends of the horseshoe-shaped corrugated steel pipe culvert 2 and the end of the horseshoe-shaped corrugated steel pipe culvert 2 is 1.5m. The corrugated steel retaining wall 1 is made of corrugated 300*110 online flanged corrugated steel plate. There are 8 corrugated steel retaining walls 1, which are evenly divided into two groups. One group is set at each end of each horseshoe-shaped corrugated steel culvert 2. Each group of corrugated steel retaining walls 1 is set on a reinforced concrete foundation 4, and columns 5 are set between adjacent corrugated steel retaining walls 1. The columns 5 are made of I-beams and are vertically installed on the reinforced concrete foundation 4. Multiple wall tie rods 6 are set between the corrugated steel retaining wall 1 and the annular steel beam 3, and between the columns 5 and the annular steel beam 3 to reinforce the connection and stabilize the corrugated steel retaining wall 1.

[0028] like Figure 4 and Figure 5 As shown, the annular steel beam 3 is formed by bending an I-beam, and a plurality of connecting plates 7 are sequentially arranged on the annular steel beam 3 along its length direction. Each connecting plate 7 passes through the web of the annular steel beam 3, and the two ends of the connecting plate 7 are respectively located on both sides of the annular steel beam 3. The two ends of the connecting plate 7 are connected to the horseshoe-shaped corrugated steel culvert 2 through a bolt and nut assembly 8.

[0029] like Figure 2 and Figure 3 As shown, a T-shaped connector 9 is installed between adjacent horseshoe-shaped corrugated steel culverts 2. The T-shaped connector 9 is arranged horizontally and includes a transverse portion and a longitudinal portion, both of which are made of I-beams. The ends of the transverse portion are welded to the annular steel beam 3 installed on the adjacent horseshoe-shaped corrugated steel culvert 2. One end of the longitudinal portion is welded to the transverse portion, and the other end is welded to the column 5. The installation of the T-shaped connector 9 increases the structural strength and rigidity of the adjacent horseshoe-shaped corrugated steel culverts 2, thereby increasing the structural strength and rigidity of the entire composite structure.

[0030] Example 1

[0031] like Figure 1 、 Figure 2 and Figure 4 As shown, a composite concrete structure of a continuous arch corrugated steel bridge includes a corrugated steel retaining wall 1, a horseshoe-shaped corrugated steel pipe culvert 2, a circular steel beam 3 and a reinforced concrete foundation 4, and two reinforced concrete foundations 4 are provided. The horseshoe-shaped corrugated steel pipe culvert 2 adopts a 380*140 large wave structure. There are four horseshoe-shaped corrugated steel pipe culverts 2. Two circular steel beams 3 are provided at both ends of each horseshoe-shaped corrugated steel pipe culvert 2. The distance between the circular steel beams 3 provided at both ends of the horseshoe-shaped corrugated steel pipe culvert 2 and the end of the horseshoe-shaped corrugated steel pipe culvert 2 is 2m. The corrugated steel retaining wall 1 is made of corrugated 300*110 online flanged corrugated steel plate. There are 8 corrugated steel retaining walls 1, which are evenly divided into two groups. One group is set at each end of each horseshoe-shaped corrugated steel culvert 2. Each group of corrugated steel retaining walls 1 is set on a reinforced concrete foundation 4, and columns 5 are set between adjacent corrugated steel retaining walls 1. The columns 5 are made of I-beams and are vertically installed on the reinforced concrete foundation 4. Multiple wall tie rods 6 are set between the corrugated steel retaining wall 1 and the annular steel beam 3, and between the columns 5 and the annular steel beam 3 to reinforce the connection and stabilize the corrugated steel retaining wall 1.

[0032] like Figure 4 and Figure 5As shown, the annular steel beam 3 is formed by bending an I-beam. Two sets of connecting plates 7 are provided on the annular steel beam 3. Each set of connecting plates 7 includes a plurality of connecting plates 7. The multiple connecting plates 7 in each set of connecting plates 7 are sequentially arranged along the length direction of the annular steel beam 3. One end of the connecting plate 7 is welded to the web of the annular steel beam 3, and the other end extends beyond the flange of the annular steel beam 3. The connecting plate 7 is connected to the horseshoe-shaped corrugated steel culvert 2 via a bolt and nut assembly 8. Therefore, the annular steel beam 3 is connected to the horseshoe-shaped corrugated steel culvert 2 via the connecting plate 7 and the bolt and nut assembly 8.

[0033] like Figure 2 and Figure 3 As shown, a T-shaped connector 9 is provided between adjacent horseshoe-shaped corrugated steel culverts 2. The T-shaped connector 9 is provided horizontally and includes a transverse portion and a longitudinal portion. Both the transverse portion and the longitudinal portion of the T-shaped connector 9 are made of I-beams. The two ends of the transverse portion are respectively welded to the annular steel beam 3 provided on the adjacent horseshoe-shaped corrugated steel culvert 2. One end of the longitudinal portion is welded to the transverse portion, and the other end is welded to the column 5. By providing the T-shaped connector 9, the structural strength and rigidity of the adjacent horseshoe-shaped corrugated steel culverts 2 are increased, thereby increasing the structural strength and rigidity of the entire combined structure. A plurality of T-shaped connectors 9 are provided at either end of the horseshoe-shaped corrugated steel culvert 2, for example, 2-3, and the plurality of T-shaped connectors 9 at either end of the horseshoe-shaped corrugated steel culvert 2 are arranged in sequence in the vertical direction.

[0034] Principle: The concrete structure required by the present invention is only a reinforced concrete foundation 4. The retaining wall of the present invention uses corrugated steel plates, and the culvert uses corrugated steel culverts. They not only have strong deformation resistance and are quick and convenient to install, but also do not require layered pouring compared to reinforced concrete retaining walls and culverts, which also reduces concrete curing time. They can also be prefabricated in the factory, effectively saving the construction period.

[0035] Therefore, the utility model organically combines the corrugated plate and the concrete structure, which can reduce the construction cost of the multi-arch bridge and shorten the construction period.

[0036] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A composite concrete structure of a multi-arch corrugated steel bridge, characterized in that: The invention comprises a corrugated steel retaining wall (1), a horseshoe-shaped corrugated steel pipe culvert (2), an annular steel beam (3) and a reinforced concrete foundation (4); the corrugated steel retaining wall (1) is vertically arranged on the reinforced concrete foundation (4); columns (5) are arranged between adjacent corrugated steel retaining walls (1); both ends of the horseshoe-shaped corrugated steel pipe culvert (2) are connected to a corrugated steel retaining wall (1); an annular steel beam (3) is arranged near both ends of the horseshoe-shaped corrugated steel pipe culvert (2); and a plurality of wall tie rods (6) are arranged between the corrugated steel retaining wall (1) and the annular steel beam (3).

2. The multi-arch corrugated steel bridge concrete composite structure according to claim 1, characterized in that: The columns (5) are made of I-steel and are vertically installed on a reinforced concrete foundation (4). A wall tie rod (6) is also provided between the columns (5) and the annular steel beam (3).

3. The multi-arch corrugated steel bridge concrete composite structure according to claim 1, characterized in that: The distance between the annular steel beams (3) arranged at both ends of the horseshoe-shaped corrugated steel pipe culvert (2) and the ends of the horseshoe-shaped corrugated steel pipe culvert (2) is 1.5m-2.5m.

4. The multi-arch corrugated steel bridge concrete composite structure according to claim 1, characterized in that: The annular steel beam (3) is formed by bending an I-beam, and a plurality of connecting plates (7) are sequentially arranged on the annular steel beam (3) along its length direction. The annular steel beam (3) is connected to the horseshoe-shaped corrugated steel pipe culvert (2) through the plurality of connecting plates (7).

5. The multi-arch corrugated steel bridge concrete composite structure according to claim 4, characterized in that: The connecting plate (7) passes through the web of the annular steel beam (3), and the two ends of the connecting plate (7) are respectively located on both sides of the annular steel beam (3). The two ends of the connecting plate (7) are connected to the horseshoe-shaped corrugated steel pipe culvert (2) through a bolt and nut assembly (8).

6. The multi-arch corrugated steel bridge concrete composite structure according to claim 1, characterized in that: A T-shaped connector (9) is provided between adjacent horseshoe-shaped corrugated steel pipe culverts (2). The T-shaped connector (9) is provided horizontally and comprises a transverse portion and a longitudinal portion. Both ends of the transverse portion are respectively connected to annular steel beams (3) provided on the adjacent horseshoe-shaped corrugated steel pipe culverts (2). One end of the longitudinal portion is connected to the transverse portion, and the other end is connected to a column (5).

7. The multi-arch corrugated steel bridge concrete composite structure according to claim 6, characterized in that: The transverse portion and the longitudinal portion of the T-shaped connector (9) are both made of I-beams, the transverse portion and the longitudinal portion are welded together, the transverse portion is welded together with the annular steel beam (3), and the longitudinal portion is welded together with the column (5).

8. The multi-arch corrugated steel bridge concrete composite structure according to claim 6, characterized in that: A plurality of T-shaped connectors (9) are provided at either end of the horseshoe-shaped corrugated steel pipe culvert (2), and the plurality of T-shaped connectors (9) at either end of the horseshoe-shaped corrugated steel pipe culvert (2) are sequentially provided in the upper and lower directions.

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