Optimized steel reinforced concrete arch bridge support system

Abstract

This invention relates to the technical field of reinforced concrete arch bridges, and discloses an optimized support system for reinforced concrete arch bridges, including multiple supporting steel pipes, Bailey beams, arch ribs, and steel frame structures. The Bailey beams are positioned on top of the supporting steel pipes, and the steel frame structures are positioned between the Bailey beams and the arch ribs. Each Bailey beam includes two horizontal beams and vertical members, with a square area between adjacent vertical members. A central section is formed in the middle of each vertical member, and inclined members are arranged at an angle within the square area. One end of each inclined member connects to the central section of the horizontal beam, and the other end forms a fixed end, which connects to the central section. Two spaced reinforcing members are arranged on the outer side of each vertical member, with a space between them. The inclined members pass through this space, and the two reinforcing members clamp the inclined members. By arranging the inclined members, the overall support strength of the Bailey beam is enhanced. The inclined members pass through the space between the members, and the two reinforcing members clamp the inclined members, further strengthening and fixing the inclined members, thus improving the overall stability of the support system.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of reinforced concrete arch bridges, in particular to an optimized reinforced concrete arch bridge support system. BACKGROUND

[0002] Concrete arch bridges are widely used in bridge settings and can be applied to small and medium span bridges. The main load-bearing structure of a concrete arch bridge is the main arch ring, which mainly bears axial pressure and also bears bending shear under vertical load.

[0003] Before pouring concrete for a concrete arch bridge, a support system needs to be arranged, which includes Bailey beams, arch ribs, support steel pipes, and steel frame bays. The Bailey beams are arranged between the steel frame bays and the support steel pipes to provide lateral support. The steel frame bays are arranged between the arch ribs and the Bailey beams to support the arch ribs.

[0004] In the prior art, the Bailey beams include crossbeams, and vertical poles are arranged between the crossbeams to directly support the crossbeams. The structure is too simple, and the support strength is poor, resulting in low stability of the entire support system. SUMMARY

[0005] The present application aims to provide an optimized reinforced concrete arch bridge support system to solve the problem of low stability of the reinforced concrete arch bridge support system in the prior art.

[0006] The present application is implemented as follows: an optimized reinforced concrete arch bridge support system includes multiple spaced support steel pipes, Bailey beams, arch ribs arranged in an arch shape, and steel frame bays. The Bailey beams are arranged on the top of the multiple support steel pipes, and the two ends of the arch ribs are fixedly arranged. A support area is formed between the arch ribs and the Bailey beams, and the steel frame bays are arranged in the support area. The bottom of the steel frame bays is pressed against the Bailey beams, and the top of the steel frame bays abuts against the bottom of the arch ribs.

[0007] The Bailey beams include two crossbeams arranged vertically and vertical poles arranged between the multiple crossbeams. The multiple vertical poles are spaced along the length direction of the crossbeams. The ends of the vertical poles correspond to the two crossbeams, respectively. There is a square area between adjacent vertical poles.

[0008] A middle part is formed in the middle of the vertical pole. The square area is provided with an inclined pole arranged obliquely. One end of the inclined pole is connected to the middle of the crossbeam, and the other end of the inclined pole forms a fixed end connected to the middle part. Two spaced reinforcing rods are arranged on the outer side of the vertical pole. The reinforcing rods are connected to the two crossbeams, respectively. The inclined pole passes through the rod spacing, and the two reinforcing rods hold the inclined pole.

[0009] Further, the bottom of the support steel pipe is fixed in a fixed seat.

[0010] Further, the top of the support steel pipe is formed with a top plate, and the bailey beams are fixedly connected with the top plates of the support steel pipes, respectively.

[0011] Further, a plurality of the inclined rods are arranged in the square region and surround the square region in a circumferential direction.

[0012] Further, the cross beam is formed with a connecting site, and one end of each of the adjacent inclined rods is butted on the connecting site.

[0013] Further, the vertical rod is provided with a clamping plate on each side, and the inclined rod has a through segment arranged between the reinforcing rod and the vertical rod, and the two clamping plates clamp the through segment.

[0014] Further, the top of the bailey beam is provided with a groove strip extending along the length direction of the bailey beam, and the bottom of the steel truss is embedded in the groove strip and fixedly butted with the bailey beam.

[0015] Further, the fixed end of the inclined rod has a fixed plate arranged in an inclined manner, the side surface of the vertical rod is provided with a protrusion, the protrusion is provided with an inclined surface inclined in the same direction as the fixed plate, and the fixed plate is fixedly butted on the inclined surface in an inclined manner; the top and the bottom of the protrusion are respectively provided with two inclined surfaces, the two inclined surfaces are arranged in an opposite inclined manner, and the inclined rod is respectively butted on the two inclined surfaces.

[0016] Further, an adjusting shaft is arranged in the protrusion, a vertical hole vertically penetrating the protrusion is arranged in the protrusion, the diameter of the vertical hole is greater than the diameter of the adjusting shaft, the middle part of the adjusting shaft is fixedly connected with the protrusion, and the end part of the adjusting shaft extends out of the inclined surface to form a spherical head part.

[0017] The fixed plate is provided with a spherical head groove arranged in a recessed manner, the fixed plate is fixedly abutted on the inclined surface, and the spherical head part is movably embedded in the spherical head groove and movably arranged with the fixed plate.

[0018] Further, an axial hole extending in an axial direction is arranged in the adjusting shaft, the axial hole is filled with elastic glue, and the elastic glue forms an elastic strip; the elastic strip penetrates the spherical head part to form a flat surface, and the flat surface has a gap with the inner side wall of the spherical head groove.

[0019] Compared with the prior art ，The reinforced concrete arch bridge support system provided by the application has the advantages that the bailey beam plays the role of intermediate support bearing, the vertical pole is arranged between two cross beams, the reinforcing rods are arranged on both sides of the vertical pole, the reinforcing rods can play the role of enhancing the support strength of the bailey beam, the overall support strength of the bailey beam is enhanced through the arrangement of the inclined rods, the inclined rods pass through the rod intervals, and the two reinforcing rods clasp the inclined rods towards each other, the inclined rods can be further enhanced and fixed, and the overall stability of the support system is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 is a front view of the reinforced concrete arch bridge support system provided by the application;

[0021] Fig. 2 is a partial front view of the bailey beam provided by the application;

[0022] Fig. 3 is a cutaway view of the cooperation between the protruding block and the fixed plate provided by the application. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the application clearer, the application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the application and do not limit the application.

[0024] The implementation of the application is described in detail below in combination with specific examples.

[0025] In the drawings of the present embodiment, the same or similar reference numerals correspond to the same or similar components; in the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationship in the drawings are only used for exemplary illustration, and cannot be understood as a limitation on the present patent, for those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0026] Referring to Figs. 1-3 , the preferred embodiment provided by the application is shown.

[0027] The optimized reinforced concrete arch bridge support system includes multiple spaced supporting steel pipes 400, Bailey beams 300, arch ribs 100 arranged in an arch shape, and steel frame 200. The Bailey beams 300 are set on top of the multiple supporting steel pipes 400, and the two ends of the arch ribs 100 are fixedly arranged respectively. A support area is formed between the arch ribs 100 and the Bailey beams 300. The steel frame 200 is arranged in the support area, with the bottom of the steel frame 200 pressing against the Bailey beams 300 and the top of the steel frame 200 abutting against the bottom of the arch ribs 100.

[0028] In this way, the supporting steel pipe 400, Bailey beam 300, steel frame 200 and arch rib 100 form a complete support system, which plays a supporting role. Subsequently, formwork is erected and concrete is poured on the support system.

[0029] The Bailey beam 300 includes two horizontal beams 301 arranged vertically and horizontally, and vertical bars 302 arranged between the horizontal beams 301. The vertical bars 302 are arranged at intervals along the length of the horizontal beams 301. The ends of the vertical bars 302 are respectively connected to the two horizontal beams 301. There is a square area 304 between adjacent vertical bars 302.

[0030] The vertical rod 302 has a central section in the middle. A square area 304 is provided with an inclined rod 303. One end of the inclined rod 303 is connected to the middle section of the crossbeam 301, and the other end of the inclined rod 303 is a fixed end connected to the central section. Two reinforcing rods 500 are provided on the outer side of the vertical rod 302 at intervals. There is a rod gap between the two reinforcing rods 500. The two ends of the reinforcing rod 500 are respectively connected to the two crossbeams 301. The inclined rod 303 passes through the rod gap, and the two reinforcing rods 500 hold the inclined rod 303.

[0031] In the optimized reinforced concrete arch bridge support system provided above, the Bailey beam 300 serves as the intermediate support and load-bearing structure. Vertical members 302 are arranged between the two horizontal beams 301, and reinforcing members 500 are arranged on both sides of the vertical members 302. The reinforcing members 500 can enhance the support strength of the Bailey beam 300. Furthermore, by arranging inclined members 303, the overall support strength of the Bailey beam 300 is enhanced. The inclined members 303 pass through the member gaps, and the two reinforcing members 500 clamp the inclined members 303 facing each other, which can further strengthen and fix the inclined members 303, thereby improving the overall stability of the support system.

[0032] In this embodiment, the bottom of the supporting steel pipe 400 is fixed in the fixing seat 401. This ensures the fixation of the supporting steel pipe 400 so that it can play a supporting role. The fixing seat 401 can be formed by concrete pouring.

[0033] In this embodiment, a top plate is formed on the top of the supporting steel pipe 400, and the Bailey beam 300 is fixedly connected to the top plate of the multiple supporting steel pipes 400 respectively, which facilitates the fixed connection between the Bailey beam 300 and the supporting steel pipe 400.

[0034] In this embodiment, a plurality of inclined rods 303 are provided in the square region 304. The plurality of inclined rods 303 are arranged around the circumference of the square region 304. In this way, the plurality of inclined rods 303 can be used to form full circumferential support in the square region 304 to improve the overall strength of the Bailey beam 300.

[0035] A connection position is formed on the crossbeam 301, and one end of the adjacent inclined rod 303 is connected to the connection position, which facilitates the connection between multiple inclined rods 303 and the crossbeam 301.

[0036] In this embodiment, clamping plates are provided on both sides of the vertical rod 302, and the inclined rod 303 has a through section 305 arranged between the reinforcing rod 500 and the vertical rod 302. The two clamping plates clamp the through section 305 facing each other. In this way, not only are the inclined rod 303 clamped and fixed facing each other by the two reinforcing rods 500, but the through section 305 is also clamped and fixed again by the two clamping plates. The end of the inclined rod 303 can be fixed and clamped twice, which improves the support strength of the inclined rod 303 and ensures the connection stability between the inclined rod 303 and the vertical rod 302.

[0037] In this embodiment, the top of the Bailey beam 300 is provided with a grooved strip, which extends along the length of the Bailey beam 300. The bottom of the steel frame 200 is embedded in the grooved strip and is fixedly connected to the Bailey beam 300. This facilitates the fixed connection between the steel frame 200 and the Bailey beam 300, and the bottom of the steel frame 200 is embedded in the groove, which facilitates the welding of the steel frame 200, so that the steel frame 200 and the Bailey beam 300 are integrated into one unit.

[0038] In this embodiment, the fixed end of the inclined rod 303 has a fixed plate 601 arranged at an inclination, and the side of the vertical rod 302 is provided with a protrusion 600. The protrusion 600 is provided with an inclined surface that is inclined in the same direction as the fixed plate 601. The fixed plate 601 is fixedly connected to the inclined surface at an inclination. The top and bottom of the protrusion 600 are respectively provided with two inclined surfaces, which are arranged at an inclination towards each other. The inclined rod 303 is connected to the two inclined surfaces respectively.

[0039] By arranging protrusions 600 and forming inclined surfaces on them, the fixing plate 601 of the inclined rod 303 is attached to and fixed on the inclined surface, which facilitates the connection between the inclined rod 303 and the vertical rod 302. The inclined surface is arranged at an angle, which can improve the distribution of support force between the inclined rod 303 and the vertical rod 302, greatly improve the connection stability between the inclined rod 303 and the vertical rod 302, and enhance the support strength.

[0040] In this embodiment, an adjusting shaft 700 is provided through the protrusion 600, and a vertical hole 602 is provided in the protrusion 600. The diameter of the vertical hole 602 is larger than the diameter of the adjusting shaft 700. The middle part of the adjusting shaft 700 is fixedly connected to the protrusion 600, and the end of the adjusting shaft 700 extends out of an inclined surface to form a spherical head 702.

[0041] The fixing plate 601 is provided with a recessed ball head groove. The fixing plate 601 is fixedly abutted against the inclined surface, and the ball head 702 is movably embedded in the ball head groove and is movably arranged with the fixing plate 601.

[0042] By arranging the adjusting shaft 700, with a gap between the adjusting shaft 700 and the vertical hole 602, the ball head 702 of the adjusting shaft 700 abuts against the fixing plate 601 and is embedded in the ball head groove for movable abutment and spherical abutment. The adjusting shaft 700 can play the role of vibration buffering and can play the role of fine position adjustment, thus buffering vibration between the vertical rod 302 and the tilting rod.

[0043] In this embodiment, the adjusting shaft 700 has an axially extending inner hole, which is filled with elastic adhesive to form an elastic strip 701. The elastic strip 701 extends to the ball head 702, forming a flat surface on the ball head 702. There is a gap between the flat surface and the inner wall of the ball head groove.

[0044] By setting an inner hole in the adjusting shaft 700, the elasticity of the adjusting shaft 700 can be enhanced. Secondly, elastic rubber is arranged in the axial hole to form an elastic strip 701. While ensuring the integrity of the adjusting shaft 700, the adjusting shaft 700 can meet the elasticity requirements to achieve the effect of buffering vibration between the tilting rod 303 and the vertical rod 302. Furthermore, there is a gap between the flat surface of the elastic strip 701 and the inner wall of the ball joint groove, so there will be no abutment phenomenon, which allows the elastic strip 701 to meet the elastic deformation requirements.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An optimized support system for reinforced concrete arch bridges, characterized in that, It includes multiple spaced-apart supporting steel pipes, Bailey beams, arched ribs, and steel frame structures. The Bailey beams are placed on top of the multiple supporting steel pipes, and the two ends of the arched ribs are fixedly arranged. A supporting area is formed between the arched ribs and the Bailey beams. The steel frame structures are arranged in the supporting area, with the bottom of the steel frame structures pressing against the Bailey beams and the top of the steel frame structures abutting against the bottom of the arched ribs. The Bailey beam includes two horizontal beams arranged at intervals and vertical bars arranged between multiple horizontal beams. The multiple vertical bars are arranged at intervals along the length of the horizontal beams. The ends of the vertical bars are respectively connected to the two horizontal beams, and there is a square area between adjacent vertical bars. The vertical rod has a central section in the middle. The square area is provided with inclined rods arranged at an angle. One end of the inclined rod is connected to the middle of the crossbeam, and the other end of the inclined rod is a fixed end connected to the central section. Two reinforcing rods are provided on the outer side of the vertical rod at intervals. There is a rod gap between the two reinforcing rods. The two ends of the reinforcing rods are respectively connected to the two crossbeams. The inclined rod passes through the rod gap, and the two reinforcing rods hold the inclined rod. The fixed end of the inclined rod has a fixed plate arranged at an inclination. The side of the vertical rod is provided with a protrusion. The protrusion is provided with an inclined surface that is inclined in the same direction as the fixed plate. The fixed plate is fixedly connected to the inclined surface at an inclination. The top and bottom of the protrusion are respectively provided with two inclined surfaces. The two inclined surfaces are arranged at an inclination towards each other. The inclined rod is connected to each of the two inclined surfaces. An adjusting shaft is inserted through the protrusion, and a vertical hole is provided in the protrusion. The diameter of the vertical hole is larger than the diameter of the adjusting shaft. The middle part of the adjusting shaft is fixedly connected to the protrusion, and the end of the adjusting shaft extends out to form an inclined surface, forming a spherical head. The fixing plate is provided with a recessed ball head groove. The fixing plate is fixedly abutted against the inclined surface, and the ball head is movably embedded in the ball head groove and is movably arranged with the fixing plate. The adjusting shaft has an axially extending inner hole, which is filled with elastic adhesive to form an elastic strip. The elastic strip extends to the ball head, forming a flat surface on the ball head, and there is a gap between the flat surface and the inner wall of the ball head groove.

2. The optimized reinforced concrete arch bridge support system as described in claim 1, characterized in that, The bottom of the supporting steel pipe is fixed in the fixing seat.

3. The optimized reinforced concrete arch bridge support system as described in claim 1, characterized in that, A top plate is formed on the top of the supporting steel pipe, and the Bailey beam is fixedly connected to the top plate of the multiple supporting steel pipes respectively.

4. The optimized reinforced concrete arch bridge support system as described in claim 1, characterized in that, The square area is provided with a plurality of inclined rods, which are arranged around the perimeter of the square area.

5. The optimized reinforced concrete arch bridge support system as described in claim 4, characterized in that, A connection position is formed on the crossbeam, and one end of the adjacent inclined rod is mated to the connection position.

6. The optimized reinforced concrete arch bridge support system as described in claim 1, characterized in that, The vertical rod is provided with clamps on both sides, and the inclined rod has a through section arranged between the reinforcing rod and the vertical rod, with the two clamps clamping the through section facing each other.

7. The optimized reinforced concrete arch bridge support system as described in claim 1, characterized in that, The top of the Bailey beam is provided with a grooved strip, which extends along the length of the Bailey beam. The bottom of the steel frame is embedded in the grooved strip and is fixedly connected to the Bailey beam.

Images