A steel-concrete composite beam bridge and a method for installing the same

Abstract

The application discloses a kind of steel concrete composite beam bridges, including multiple composite beam bodies and two rows of steel concrete columns, multiple the composite beam body is placed in the position between two rows of steel concrete columns side by side, the rough surface groove is set in the both sides of composite beam body, the notch groove is set in the inner side wall of upper end of corbel beam, the sealing plate is equipped at the top of composite beam body, the jacking mechanism is installed in the bottom of notch groove, the sliding distance adjusting mechanism is installed in the slide, and the sliding distance adjusting mechanism is used for adjusting the horizontal angle of composite beam body.When pouring concrete on the upper part of composite beam body, the concrete will enter the rough surface groove through the liquid leakage notch, thereby connecting the adjacent composite beam bodies, effectively ensuring the stability and structural strength of the connection between adjacent composite beam bodies, while avoiding the existence of gap between adjacent composite beam bodies, the height of sealing plate can be effectively sealed by adjusting the jacking mechanism, the sliding distance adjusting mechanism adjusts the horizontal angle of composite beam body, improves safety, while the adjustment of angle can be accurately controlled, improves the efficiency of installation.

Description

Technical Field

[0001] This invention relates to the field of reinforced concrete bridge technology, and more specifically, to a reinforced concrete composite beam bridge and its installation method. Background Technology

[0002] In existing prefabricated construction methods, prefabricated beams are limited by beam length, production environment, transportation, and installation conditions, resulting in beams being prefabricated in segments. Reinforced concrete bridges consist of composite beams and bridge decks. The bridge decks are installed on the composite beams after the concrete is poured. The composite beams need to be erected using cranes during installation. If the crane encounters a bend in the bridge during the erection process, workers need to manually guide the composite beams to swing them and adjust their horizontal angle. This method is somewhat dangerous, and the angle adjustment cannot be precisely controlled, requiring repeated lifting and adjustment by the crane, which affects the efficiency of installation. Summary of the Invention

[0003] The purpose of this invention is to provide a steel-concrete composite beam bridge with convenient angle adjustment and safe installation process, as well as its installation method.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] A steel-concrete composite beam bridge includes multiple composite beams and two rows of steel-concrete columns. The bridge is characterized by: an integral corbel beam fixed to the upper inner side of each steel-concrete column; multiple composite beams arranged side-by-side between the two rows of steel-concrete columns; each composite beam resting on its corresponding corbel beam at both ends; rough-surfaced grooves on both sides of each composite beam; multiple vertically spaced drainage openings connected to the rough-surfaced grooves on both sides of the top of each composite beam; a notch groove on the inner sidewall of the upper end of each corbel beam; a sealing plate on the top of each composite beam; both ends of the sealing plate resting on the corresponding notch grooves; a jacking mechanism installed at the bottom of the notch groove for adjusting the height of the sealing plate; and a sliding track extending through both ends inside each corbel beam, with a sliding adjustment mechanism installed within the track for adjusting the horizontal angle of the composite beam.

[0006] Furthermore, the sliding adjustment mechanism includes a slider and multiple rollers. The upper part of the bracket beam has a first sliding groove along the length direction. The first sliding groove is connected to the slide rail. The slider is inserted into the slide rail through the first sliding groove. The multiple rollers are located at the bottom of the slide rail and make rolling contact with the bottom of the slider.

[0007] Furthermore, the jacking mechanism includes a protective box, a top column, and a bolt. The protective box is fixedly installed on the inner wall of the corbel beam. A threaded hole is opened at the bottom of the protective box, and the bolt is installed in the threaded hole. An insertion hole is opened at the bottom of the notch, and the top column is inserted into the insertion hole. A second sliding groove opening communicating with the protective box is opened on the inner wall of the insertion hole. A sliding plate is fixedly installed on one side of the top column. The sliding plate is inserted into the protective box through the second sliding groove opening, and the top of the bolt contacts the bottom of the sliding plate.

[0008] Furthermore, the sealing plate is composed of a steel plate and a rubber plate, with the rubber plate fixedly bonded to the upper surface of the steel plate.

[0009] Furthermore, the surface of the textured groove is a granular textured surface.

[0010] Furthermore, the composite beam body is provided with two rows of upwardly protruding reinforcing bars, and the two rows of reinforcing bars are connected by multiple tie bars.

[0011] Furthermore, pre-embedded reinforcing bars are fixedly installed at both ends of the upper part of the composite beam. The two ends of the pre-embedded reinforcing bars are inserted into the composite beam and welded to multiple tie bars. The middle part of the pre-embedded reinforcing bars is a raised arc shape.

[0012] A method for installing a steel-concrete composite beam bridge, comprising the following steps:

[0013] A. Use a crane to lift the composite beam to a position above the two rows of reinforced concrete columns;

[0014] B. Place both ends of the sealing plate into the notch groove;

[0015] C. Install the hydraulic cylinder at the outer end of the slide rail, and then place the composite beam on the corbel beam using a crane;

[0016] D. Start the extension and retraction of the hydraulic cylinders at both ends of the slide. The hydraulic cylinders push the slider to move on the roller. The slider will deflect the end of the composite beam to adjust the horizontal angle.

[0017] E. Repeat the above operation to install multiple composite beams side by side on the reinforced concrete column. After the horizontal angle of the composite beams is adjusted, rotate the bolts. The bolts will push the sliding plate, so that the sealing plate will fit against the bottom of the composite beam for sealing.

[0018] F. Pour concrete onto the upper part of the composite beam.

[0019] Preferably, after the horizontal angle adjustment of the composite beam is completed in step D, the roller is removed from the slide rail.

[0020] Compared with the prior art, the advantages of the present invention are as follows:

[0021] This invention utilizes rough-surfaced grooves on both sides of the composite beam. When concrete is poured onto the upper part of the composite beam, the concrete enters the rough-surfaced grooves through the leakage channel, thereby connecting adjacent composite beams. This effectively ensures the stability and structural strength of the connection between adjacent composite beams, while preventing gaps between them. The height of the sealing plate can be adjusted by the jacking mechanism to effectively seal the concrete and prevent it from falling. The sliding adjustment mechanism adjusts the horizontal angle of the composite beam, improving safety. At the same time, the angle adjustment can be precisely controlled, improving installation efficiency. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a structural diagram of the steel-concrete composite beam bridge of the present invention.

[0024] Figure 2 yes Figure 1 Enlarged schematic diagram of the structure at point A in the middle.

[0025] Figure 3 This is a cross-sectional view of the corbel beam of the present invention.

[0026] Figure 4 This is a top view of the corbel beam of the present invention.

[0027] Figure 5 Installation status diagram of the steel-concrete composite beam bridge of the present invention.

[0028] Figure 6 This is a sectional view of the composite beam of the present invention.

[0029] In the diagram: 1 Composite beam, 11 Rough groove, 12 Rebar, 13 Leakage groove, 14 Embedded bar, 15 Tie bar, 2 Reinforced concrete column, 3 Corbel beam, 31 First sliding groove, 32 Slide, 33 Insertion hole, 34 Second sliding groove, 35 Notch, 4 Sliding adjustment mechanism, 41 Slider, 42 Roller, 5 Pushing mechanism, 51 Protective box, 52 Top column, 53 Bolt, 54 Slide plate, 6 Sealing plate, 61 Steel plate, 62 Rubber plate. Detailed Implementation

[0030] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more explicit definition of the scope of protection of the present invention.

[0031] See Figure 1 As shown, this invention provides a steel-concrete composite beam bridge, comprising multiple composite beams 1 and two rows of steel-concrete columns 2. An integral corbel beam 3 is fixedly installed at the upper inner end of each steel-concrete column 2. Multiple composite beams 1 are stacked side-by-side between the two rows of steel-concrete columns 2, with both ends of each composite beam 1 resting on corresponding corbel beams 3. Both sides of each composite beam 1 have roughened grooves 11. Multiple vertically distributed drainage outlets 13, connected to the roughened grooves 11, are evenly distributed on both sides of the top of each composite beam 1. When concrete is poured onto the upper part of the composite beam 1, the concrete enters the roughened grooves 11 through the drainage outlets 13, thereby connecting adjacent composite beams 1 and effectively ensuring the connection between adjacent composite beams. To ensure the stability and structural strength of the connection between beams 1, and to avoid gaps between adjacent composite beams 1, a notch 35 is provided on the inner side wall of the upper end of the corbel beam 3. A sealing plate 6 is provided on the top of the composite beam 1. The two ends of the sealing plate 6 are placed on the notch 35 at the corresponding positions. The sealing plate 6 is used to prevent concrete from falling and to ensure that the concrete can seal the gaps between the composite beams 1. A jacking mechanism 5 is installed at the bottom of the notch 35. The jacking mechanism 5 is used to adjust the height of the sealing plate 6. A slide rail 32 that runs through both ends is provided inside the corbel beam 3. A sliding adjustment mechanism 4 is installed in the slide rail 32. The sliding adjustment mechanism 4 is used to adjust the horizontal angle of the composite beam 1.

[0032] See Figure 2 and Figure 4 As shown, in this embodiment, the sliding adjustment mechanism 4 includes a slider 41 and a plurality of rollers 42. The upper part of the corbel beam 3 is provided with a first sliding groove 31 along the length direction. The first sliding groove 31 is connected to the slide rail 32. The slider 41 is inserted into the slide rail 32 through the first sliding groove 31. The plurality of rollers 42 are located at the bottom of the slide rail 32. The rollers 43 are in rolling contact with the bottom of the slider 41.

[0033] See Figure 3 As shown, in this embodiment, the jacking mechanism 5 includes a protective box 51, a jacking column 52, and a bolt 53. The protective box 51 is fixedly installed on the inner side wall of the corbel beam 3. A threaded hole is opened at the bottom of the protective box 51, and the bolt 53 is installed in the threaded hole. An insertion hole 33 is opened at the bottom of the notch 35, and the jacking column 52 is inserted into the insertion hole 33. A second sliding groove 34 communicating with the protective box 51 is opened on the inner side wall of the insertion hole 33. A sliding plate 54 is fixedly installed on one side of the jacking column 52. The sliding plate 54 is inserted into the protective box 51 through the second sliding groove 34. The top of the bolt 53 contacts the bottom of the sliding plate 54.

[0034] To further improve the sealing performance and structural strength of the sealing plate 6, in this embodiment, the sealing plate 6 is composed of a steel plate 61 and a rubber plate 62, with the rubber plate 62 fixedly bonded to the upper surface of the steel plate 61.

[0035] Furthermore, when concrete enters the rough-surfaced groove 11 through the leakage channel 13, in order to improve the stability of the concrete bonding on the surface of the rough-surfaced groove 11, in this embodiment, the surface of the rough-surfaced groove 11 is a granular rough surface, which can be obtained by manually tapping it with an electric hammer.

[0036] In this embodiment, the composite beam 1 has two rows of upwardly protruding reinforcing bars 12 inside, and the two rows of reinforcing bars 12 are connected by multiple tie bars 15.

[0037] Furthermore, to facilitate crane lifting operations, please refer to... Figure 6 As shown in this embodiment, both ends of the upper part of the composite beam 1 are fixedly installed with embedded bars 14. The two ends of the embedded bars 14 are inserted into the composite beam 1 and welded to multiple tie bars 15 to ensure the stability between the embedded bars 14 and the composite beam 1 and to ensure the safety of the lifting process. The middle part of the embedded bars 14 is a raised arc shape.

[0038] See Figure 5 As shown, an installation method for a steel-concrete composite beam bridge includes the following steps:

[0039] A. Use a crane to lift the composite beam 1 to a position above the two rows of reinforced concrete columns 2;

[0040] B. Place both ends of the sealing plate 6 into the notch groove 35;

[0041] C. Install the hydraulic cylinder at the outer end of the slide rail 32, and then place the composite beam 1 on the corbel beam 3 using a crane;

[0042] D. Start the extension and retraction of the hydraulic cylinders at both ends of the slide rail 32. The hydraulic cylinders push the slider 41 to move on the roller 42. The slider 41 will deflect the end of the composite beam 1 to adjust the horizontal angle.

[0043] E. Repeat the above operation to install multiple composite beams 1 side by side on the reinforced concrete column 2. After the horizontal angle of the composite beams 1 is adjusted, rotate the bolt 53. The bolt 53 will push the sliding plate 54, so that the sealing plate 6 will adhere to the bottom of the composite beams 1 for sealing.

[0044] F. Concrete is poured onto the upper part of the composite beam 1. The concrete will enter the rough surface groove 11 through the leakage groove 13, thereby connecting the adjacent composite beams 1, effectively ensuring the stability and structural strength of the connection between the adjacent composite beams 1, while avoiding gaps between the adjacent composite beams 1.

[0045] In order to avoid the roller 42 affecting the stability of the composite beam 1, after the horizontal angle of the composite beam 1 is adjusted in step D, the roller 42 is removed from the slide rail 32. At this time, the composite beam 1 can be stably placed on the corbel beam 3.

[0046] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, the patent owner may make various modifications or alterations within the scope of the appended claims, as long as they do not exceed the protection scope described in the claims of the present invention, they shall be within the protection scope of the present invention.

Claims

1. A steel-concrete composite beam bridge, comprising multiple composite beams and two rows of steel-concrete columns, characterized in that: An integral corbel beam is fixed at the upper inner side of the reinforced concrete column. Multiple composite beams are stacked side by side between two rows of reinforced concrete columns. The two ends of the composite beams are placed on the corresponding corbel beams. Both sides of the composite beams are provided with rough-surfaced grooves. Multiple leakage slots connected to the rough-surfaced grooves are evenly and vertically provided on both sides of the top of the composite beams. A notch is provided on the inner side wall of the upper end of the corbel beam. A sealing plate is provided on the top of the composite beam. The two ends of the sealing plate are placed on the notch at the corresponding positions. A jacking mechanism is installed at the bottom of the notch. The jacking mechanism is used to adjust the height of the sealing plate. A slide rail is provided inside the corbel beam that runs through both ends. A sliding adjustment mechanism is installed in the slide rail. The sliding adjustment mechanism is used to adjust the horizontal angle of the composite beam. The jacking mechanism includes a protective box, a top column, and bolts. The protective box is fixedly installed on the inner wall of the corbel beam. A threaded hole is opened at the bottom of the protective box, and the bolt is installed in the threaded hole. An insertion hole is opened at the bottom of the notch, and the top column is inserted into the insertion hole. A second sliding groove opening communicating with the protective box is opened on the inner wall of the insertion hole. A sliding plate is fixedly installed on one side of the top column. The sliding plate is inserted into the protective box through the second sliding groove opening, and the top of the bolt contacts the bottom of the sliding plate.

2. The steel-concrete composite beam bridge according to claim 1, characterized in that: The sliding adjustment mechanism includes a slider and multiple rollers. The upper part of the bracket beam has a first sliding groove along the length direction. The first sliding groove is connected to the slide rail. The slider is inserted into the slide rail through the first sliding groove. The multiple rollers are located at the bottom of the slide rail and make rolling contact with the bottom of the slider.

3. The steel-concrete composite beam bridge according to claim 1, characterized in that: The sealing plate is composed of a steel plate and a rubber plate, with the rubber plate fixedly bonded to the upper surface of the steel plate.

4. The steel-concrete composite beam bridge according to claim 1, characterized in that: The surface of the textured groove is granular.

5. The steel-concrete composite beam bridge according to claim 1, characterized in that: The composite beam has two rows of upward-protruding reinforcing bars inside, and the two rows of reinforcing bars are connected by multiple tie bars.

6. The steel-concrete composite beam bridge according to claim 1, characterized in that: Both ends of the upper part of the composite beam are fixedly installed with embedded bars. The two ends of the embedded bars are inserted into the composite beam and welded to multiple tie bars. The middle part of the embedded bars is a raised arc shape.

7. An installation method for a steel-concrete composite beam bridge according to any one of claims 1-6, characterized in that, The steps are as follows: A. Use a crane to lift the composite beam to a position above the two rows of reinforced concrete columns; B. Place both ends of the sealing plate into the notch groove; C. Install the hydraulic cylinder at the outer end of the slide rail, and then place the composite beam on the corbel beam using a crane; D. Start the extension and retraction of the hydraulic cylinders at both ends of the slide. The hydraulic cylinders push the slider to move on the roller. The slider will deflect the end of the composite beam to adjust the horizontal angle. E. Repeat the above operation to install multiple composite beams side by side on the reinforced concrete column. After the horizontal angle of the composite beams is adjusted, rotate the bolts. The bolts will push the sliding plate, so that the sealing plate will fit against the bottom of the composite beam for sealing. F. Pour concrete onto the upper part of the composite beam.

8. The installation method according to claim 7, characterized in that, After the horizontal angle adjustment of the composite beam is completed in step D, the roller is removed from the slide.

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