Optimized reinforced concrete arch bridge support system

Abstract

The invention relates to the technical field of reinforced concrete arch bridges, and discloses an optimized reinforced concrete arch bridge support system which comprises a plurality of supporting steel pipes, bailey beams, arch ribs and profile steel bent frames, the bailey beams are arranged at the tops of the supporting steel pipes, and the profile steel bent frames are arranged between the bailey beams and the arch ribs; the bailey beam comprises two cross beams and vertical rods, and a square area is formed between every two adjacent vertical rods. A middle part is formed in the middle of the vertical rod, an inclined rod is obliquely arranged in the square area, one end of the inclined rod is in butt joint with the middle of the cross beam, and a fixed end is formed at the other end of the inclined rod and is in butt joint with the middle part; two reinforcing rods which are arranged at an interval are arranged on the outer side of the vertical rod, a rod interval is formed between the two reinforcing rods, the inclined rod penetrates through the rod interval, and the two reinforcing rods clamp the inclined rod; by arranging the inclined rods, the overall supporting strength of the bailey beam is enhanced, the inclined rods penetrate through the rod intervals, the two reinforcing rods oppositely clamp the inclined rods, the inclined rods can be further reinforced and fixed, and the overall stability of a support system is improved.

Description

Technical Field

[0001] The invention patent relates to the technical field of reinforced concrete arch bridges, specifically, to optimizing the reinforced concrete arch bridge support system. Background Art

[0002] Concrete arch bridges are widely used in bridge settings. They can be applied to bridges with small and medium spans. The main load-bearing structure of concrete arch bridges is the main arch ring. Under the action of vertical loads, the main arch ring mainly bears axial pressure and also bears bending and shear forces.

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

[0004] In the prior art, the Bailey beam includes a horizontal beam, and vertical rods are arranged between the horizontal beams. The vertical rods are directly supported between the horizontal beams. The structure is too simple and the supporting strength is poor, resulting in low stability of the entire support system. Summary of the invention

[0005] The purpose of the present invention is to provide an optimized reinforced concrete arch bridge support system, aiming to solve the problem of low stability of the reinforced concrete arch bridge support system in the prior art.

[0006] The present invention is implemented in this way: the optimized reinforced concrete arch bridge support system includes a plurality of spaced support steel pipes, Bailey beams, arched arch ribs and steel bent frames, wherein the Bailey beams are arranged on the tops of the plurality of support steel pipes, and the two ends of the arch ribs are respectively fixedly arranged; a support area is formed between the arch ribs and the Bailey beams, and the steel bent frames are arranged in the support area, the bottom of the steel bent frames is pressed against the Bailey beams, and the top of the steel bent frames is abutted against the bottom of the arch ribs;

[0007] The Bailey beam comprises two horizontal beams spaced apart from each other and vertical rods arranged between the horizontal beams. The vertical rods are spaced apart along the length direction of the horizontal beams. The ends of the vertical rods are respectively connected to the two horizontal beams. There is a square area between the adjacent vertical rods.

[0008] A middle part is formed in the middle of the vertical rod, and the square area is provided with an inclined rod arranged obliquely, one end of the inclined rod is butted against the middle part of the cross beam, and the other end of the inclined rod forms a fixed end, and the fixed end is butted against the middle part; two reinforcing rods arranged at intervals are provided on the outer side of the vertical rod, and a rod interval is provided between the two reinforcing rods, and the two ends of the reinforcing rod are respectively butted against two cross beams; the inclined rod passes through the rod interval, and the two reinforcing rods clamp the inclined rod.

[0009] Furthermore, the bottom of the supporting steel pipe is fixed in a fixing seat.

[0010] Furthermore, a top plate is formed on the top of the supporting steel pipe, and the Bailey beam is fixedly connected to the top plates of the plurality of supporting steel pipes respectively.

[0011] Furthermore, a plurality of the tilting rods are provided in the square area, and the plurality of the tilting rods are arranged around the circumference of the square area.

[0012] Furthermore, a connection position is formed on the crossbeam, and one end of the adjacent inclined rods is butted at the connection position.

[0013] Furthermore, clamping plates are respectively provided on both sides of the vertical rod, and the tilting rod has a passing section arranged between the reinforcing rod and the vertical rod, and the two clamping plates clamp the passing section facing each other.

[0014] Furthermore, a groove bar is provided on the top of the Bailey beam, and the groove bar is extended along the length direction of the Bailey beam. The bottom of the steel frame is embedded in the groove bar and fixedly connected to the Bailey beam.

[0015] Furthermore, the fixed end of the tilting rod has a tilted fixing plate, the side of the vertical rod is provided with a protrusion, the protrusion is provided with an inclined surface inclined in the same direction as the fixing plate, and the fixing plate is fixedly docked on the inclined surface in an inclined state; two inclined surfaces are respectively provided on the top and bottom of the protrusion, the two inclined surfaces are tilted toward each other, and the tilting rods are docked on the two inclined surfaces respectively.

[0016] Furthermore, an adjusting shaft is passed through the convex block, a vertical hole is vertically passed through the convex block, 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 convex block, and the end of the adjusting shaft extends an inclined surface to form a spherical ball head;

[0017] The fixing plate is provided with a concave 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 movably arranged with the fixing plate.

[0018] Furthermore, the adjusting shaft is provided with an axially extending shaft inner hole, the shaft inner hole is filled with elastic glue, and the elastic glue forms an elastic strip; the elastic strip extends through the ball head to form 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.

[0019] Compared with the prior art, the optimized reinforced concrete arch bridge support system provided by the present invention has a Bailey beam that serves as an intermediate support and load-bearing system, a vertical rod is arranged between two horizontal beams, and reinforcing rods are arranged on both sides of the vertical rod. The reinforcing rods can enhance the support strength of the Bailey beam, and the overall support strength of the Bailey beam is enhanced by arranging inclined rods. The inclined rod passes through the rod interval, and two reinforcing rods clamp the inclined rod toward each other, so the inclined rod can be further strengthened and fixed, thereby improving the overall stability of the support system. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the main view of the optimized reinforced concrete arch bridge support system provided by the present invention;

[0021] Figure 2 It is a partial front view schematic diagram of the Bailey beam provided by the present invention;

[0022] Figure 3 It is a cross-sectional schematic diagram of the cooperation between the protrusion and the fixing plate provided by the present invention. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0024] The implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0025] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0026] Reference Figure 1-3 The figure shows a preferred embodiment of the present invention.

[0027] An optimized reinforced concrete arch bridge support system includes a plurality of support steel pipes 400 arranged at intervals, Bailey beams 300, arch ribs 100 arranged in an arch shape, and steel frames 200. The Bailey beams 300 are arranged on the tops of the plurality of support steel pipes 400, and the two ends of the arch ribs 100 are respectively fixedly arranged. A support area is formed between the arch ribs 100 and the Bailey beams 300, and the steel frames 200 are arranged in the support area. The bottom of the steel frames 200 is pressed against the Bailey beams 300, and the top of the steel frames 200 is abutted against the bottom of the arch ribs 100.

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

[0029] The Bailey beam 300 includes two horizontal beams 301 spaced apart from each other and vertical rods 302 arranged between the horizontal beams 301 . The vertical rods 302 are spaced apart along the length direction of the horizontal beams 301 . The ends of the vertical rods 302 are respectively connected to the two horizontal beams 301 . There is a square area 304 between adjacent vertical rods 302 .

[0030] A middle part is formed in the middle of the vertical rod 302, and a slanted inclined rod 303 is provided in the square area 304. One end of the inclined rod 303 is docked in the middle of the cross beam 301, and the other end of the inclined rod 303 forms a fixed end, which is docked in the middle part; two spaced reinforcing rods 500 are provided on the outer side of the vertical rod 302, with a rod gap between the two reinforcing rods 500, and the two ends of the reinforcing rod 500 are respectively docked with the two cross beams 301; the inclined rod 303 passes through the rod gap, and the two reinforcing rods 500 clamp the inclined rod 303.

[0031] In the optimized reinforced concrete arch bridge support system provided above, the Bailey beam 300 plays the role of an intermediate support and load-bearing, a vertical rod 302 is arranged between the two horizontal beams 301, and reinforcing rods 500 are arranged on both sides of the vertical rod 302. The reinforcing rod 500 can play the role of enhancing the support strength of the Bailey beam 300, and the overall support strength of the Bailey beam 300 is strengthened by arranging the inclined rod 303. The inclined rod 303 passes through the rod interval, and the two reinforcing rods 500 clamp the inclined rod 303 in opposite directions, which can further strengthen and fix the inclined rod 303, thereby improving the overall stability of the support system.

[0032] In this embodiment, the bottom of the support steel pipe 400 is fixed in the fixing seat 401, so that the fixation of the support steel pipe 400 can be ensured 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 plates of the plurality of supporting steel pipes 400, respectively, so that the Bailey beam 300 is conveniently fixedly connected to the supporting steel pipe 400.

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

[0035] A connection position is formed on the cross beam 301 , and one end of adjacent tilting rods 303 is butted against the connection position, so that the connection between the plurality of tilting rods 303 and the cross beam 301 is facilitated.

[0036] In this embodiment, clamping plates are respectively provided on both sides of the vertical rod 302, and the tilting rod 303 has a passing section 305 arranged between the reinforcing rod 500 and the vertical rod 302. The two clamping plates clamp the passing section 305 towards each other. In this way, the tilting rod 303 is not only clamped and fixed towards each other by the two reinforcing rods 500, but also the passing section 305 is clamped and fixed again by the two clamping plates, so that the end of the tilting rod 303 can be fixed and clamped for the second time, thereby improving the supporting strength of the tilting rod 303 and ensuring the connection stability between the tilting rod 303 and the vertical rod 302.

[0037] In this embodiment, a groove bar is provided on the top of the Bailey beam 300, and the groove bar is arranged along the length direction of the Bailey beam 300, and the bottom of the steel bent frame 200 is embedded in the groove bar and fixedly docked with the Bailey beam 300. In this way, it is convenient for the steel bent frame 200 to be fixedly docked with the Bailey beam 300, and the bottom of the steel bent frame 200 is embedded in the groove, which is convenient for welding the steel bent frame 200, so that the steel bent frame 200 and the Bailey beam 300 are combined into one.

[0038] In this embodiment, the fixed end of the tilting rod 303 has a tilted fixing plate 601, and the side of the vertical rod 302 is provided with a protrusion 600. The protrusion 600 is provided with an inclined surface inclined in the same direction as the fixing plate 601, and the fixing plate 601 is fixedly docked on the inclined surface in an inclined state; the top and bottom of the protrusion 600 are respectively provided with two of the inclined surfaces, and the two inclined surfaces are arranged tilted toward each other, and the tilting rod 303 is docked on the two inclined surfaces respectively.

[0039] By arranging the protrusion 600 and forming an inclined surface on the protrusion 600, the fixing plate 601 of the tilting rod 303 is fixed on the inclined surface in contact with the inclined surface, which facilitates the connection between the tilting rod 303 and the vertical rod 302. The inclined surface is arranged inclinedly, which can improve the support force distribution between the tilting rod 303 and the vertical rod 302, greatly improve the connection stability between the tilting rod 303 and the vertical rod 302, and enhance the support strength.

[0040] In this embodiment, an adjusting shaft 700 is passed through the protrusion 600, and a vertical hole 602 is vertically penetrated 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 an inclined surface to form a spherical ball head 702.

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

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

[0043] In this embodiment, an axially extending shaft inner hole is provided in the adjustment shaft 700, and the shaft inner hole is filled with elastic glue, which forms an elastic strip 701; the elastic strip 701 extends through the ball head 702, forming a flat surface on the ball head 702, and 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 glue is arranged in the axial hole to form an elastic strip 701. Under the condition of 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. In addition, there is a gap between the flat surface of the elastic strip 701 and the inner wall of the ball head groove, and there will be no abutment phenomenon, so that the elastic strip 701 can 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 in the protection scope of the present invention.

Claims

1. Optimize the reinforced concrete arch bridge support system, characterized in that: The invention comprises a plurality of support steel pipes arranged at intervals, Bailey beams, arched ribs and profiled steel frames, wherein the Bailey beams are arranged on the tops of the plurality of support steel pipes, and the two ends of the arched ribs are respectively fixedly arranged; a support area is formed between the arched ribs and the Bailey beams, and the profiled steel frames are arranged in the support area, the bottom of the profiled steel frames is pressed against the Bailey beams, and the top of the profiled steel frames is abutted against the bottom of the arched ribs; The Bailey beam comprises two horizontal beams spaced apart from each other and vertical rods arranged between the horizontal beams. The vertical rods are spaced apart along the length direction of the horizontal beams. The ends of the vertical rods are respectively connected to the two horizontal beams. There is a square area between the adjacent vertical rods. A middle part is formed in the middle of the vertical rod, and the square area is provided with an inclined rod arranged obliquely, one end of the inclined rod is butted against the middle part of the cross beam, and the other end of the inclined rod forms a fixed end, and the fixed end is butted against the middle part; two reinforcing rods arranged at intervals are provided on the outer side of the vertical rod, and a rod interval is provided between the two reinforcing rods, and the two ends of the reinforcing rod are respectively butted against two cross beams; the inclined rod passes through the rod interval, and the two reinforcing rods clamp the inclined rod.

2. The optimized reinforced concrete arch bridge support system according to 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 according to claim 1, characterized in that: A top plate is formed on the top of the supporting steel pipe, and the Bailey beams are fixedly connected to the top plates of a plurality of supporting steel pipes respectively.

4. The optimized reinforced concrete arch bridge support system according to claim 1, characterized in that: A plurality of the tilting rods are disposed in the square area, and the plurality of the tilting rods are arranged around the circumference of the square area.

5. The optimized reinforced concrete arch bridge support system according to claim 4, characterized in that: A connection position is formed on the crossbeam, and one end of the adjacent inclined rods is butted on the connection position.

6. The optimized reinforced concrete arch bridge support system according to claim 1, characterized in that: Clamping plates are respectively arranged on both sides of the vertical rod, and the tilting rod has a passing section arranged between the reinforcing rod and the vertical rod, and the two clamping plates clamp the passing section facing each other.

7. The optimized reinforced concrete arch bridge support system according to claim 1, characterized in that: A groove bar is arranged on the top of the Bailey beam, and the groove bar is extended along the length direction of the Bailey beam. The bottom of the steel frame is embedded in the groove bar and fixedly connected with the Bailey beam.

8. The optimized reinforced concrete arch bridge support system according to any one of claims 1 to 7, characterized in that: The fixed end of the tilting rod has a tilted fixing plate, the side of the vertical rod is provided with a protrusion, the protrusion is provided with an inclined surface inclined in the same direction as the fixing plate, and the fixing plate is fixedly docked on the inclined surface in an inclined state; the top and bottom of the protrusion are respectively provided with two inclined surfaces, the two inclined surfaces are arranged tilted toward each other, and the tilting rods are docked on the two inclined surfaces respectively.

9. The optimized reinforced concrete arch bridge support system according to claim 8, characterized in that: An adjusting shaft is passed through the convex block, a vertical hole is vertically passed through the convex block, 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 convex block, and the end of the adjusting shaft extends an inclined surface to form a spherical ball head; The fixing plate is provided with a concave 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 movably arranged with the fixing plate.

10. The optimized reinforced concrete arch bridge support system according to claim 9, characterized in that: The adjusting shaft is provided with an axially extending shaft inner hole, the shaft inner hole is filled with elastic glue, and the elastic glue forms an elastic strip; the elastic strip penetrates 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.

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