Supporting device for arch bridge construction

Abstract

The invention discloses a supporting device for arch bridge construction, and belongs to the technical field of arch bridge supporting, the supporting device comprises an arch wall plate assembly, a supporting rod assembly and a stress rod assembly, the stress rod assembly is arranged on the arch wall plate assembly, and the supporting rod assembly is arranged on the stress rod assembly; the arch wall plate assembly comprises arch bottom vertical plates and an arch-shaped plate, and the arch-shaped plate is arranged between the symmetrically-arranged arch bottom vertical plates. The arch wall plate is formed by splicing an arch bottom vertical plate and an arch-shaped plate through a lap joint plate and a lap joint groove, and the wall plate is attached to the inner wall and the outer wall of the bridge arch to prevent skid and can cover different bridge arch lengths. The supporting rods are adjustable in length, capable of being automatically locked and convenient to disassemble; the stress rod comprises a span-adjustable top wall supporting rod, and a closed-loop force transmission system is formed. The number of the supporting rods of the device can be flexibly increased or decreased to adapt to loads, assemblies are non-destructively disassembled and assembled and can be reused, the supporting stability and adaptability are improved, and the problems that an existing device is difficult to disassemble and assemble, low in reuse rate and difficult to adapt to the loads are solved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of arch bridge support, and particularly relates to a support device for arch bridge construction. BACKGROUND

[0002] In the arch bridge construction process, in order to ensure the structural stability of core processes such as arch ring pouring and assembly, and to avoid deformation, displacement or even collapse of the bridge arch semi-finished product due to self weight and construction load (such as building material stacking, personnel and equipment operation), a special support device needs to be used to realize temporary fixing and force bearing. The adaptability, stability and disassembly and assembly convenience of such a support device directly determine the construction efficiency, structural safety and cost control effect, and are key auxiliary equipment in arch bridge construction.

[0003] The existing device has the problems of complicated disassembly and assembly process and low component reuse rate. Most connecting pieces need to be disassembled one by one, and some components cannot be used again due to deformation or corrosion. In addition, the number of support rods is fixed, and cannot be flexibly increased or decreased according to the load changes in different construction stages, which is prone to insufficient support or material waste. In summary, the existing support device has the shortcomings of adaptability, stability, disassembly and assembly efficiency and load adaptability, and cannot meet the needs of modern arch bridge construction in terms of efficiency, safety and economy. SUMMARY

[0004] In view of the above problems, the application provides a support device for arch bridge construction, which effectively solves the above problems.

[0005] The technical scheme adopted by the application is as follows: the application provides a support device for arch bridge construction, which comprises an arch wall plate assembly, a support rod assembly and a force rod assembly. The force rod assembly is arranged on the arch wall plate assembly, and the support rod assembly is arranged on the force rod assembly. The arch wall plate assembly comprises an arch bottom stand and an arch-shaped plate. The arch-shaped plate is arranged between the symmetrically arranged arch bottom stands.

[0006] Further, the arch bottom stand is provided with an outer wall plate one and a side wall plate one on the two sides respectively. The arch bottom stand is provided with a lap joint plate one on the top. The other symmetrically arranged arch bottom stand is provided with a lap joint groove one on the top. The center of the lap joint plate one and the lap joint groove one is provided with a bolt hole. The bottom of the outer wall plate one and the side wall plate one is provided with an anchoring hole. The side wall plate one is provided with a force rod shaft sleeve.

[0007] Further, the arch-shaped plate is provided with an outer wall plate two and a side wall plate two on the two sides respectively. The side wall of the side wall plate two is symmetrically provided with a support rod hole. The arch-shaped plate is provided with a lap joint plate two and a lap joint groove two at the two ends respectively. The center of the lap joint plate two and the lap joint groove two is provided with a positioning hole.

[0008] As preferably, the outer wall plate one and the side wall plate one of the arch bottom stand respectively adhere to the bridge arch outer wall and the arc inner wall, the outer wall plate two and the side wall plate two of the arch plate are the same, realize the inside and outside two-way adhesion, and do not slip when supporting; the cylindrical surface of the top wall support rod is tangent to the outer cylindrical surface of the side wall plate two, adheres to the bridge arch inner wall and transmits the support force, and avoids local bruise.

[0009] Further, the connecting part of the arch plate and the arch bottom stand is provided with the lap plate one in the lap joint groove two, or the lap plate two is provided in the lap joint groove one, and the bolt hole and the positioning hole are coincident, the two arch plates are connected with each other, the lap plate two is provided in the lap joint groove two, and the two positioning holes are coincident.

[0010] As preferably, the arch bottom stand and the arch plate are connected through the cooperation of the lap joint plate and the lap joint groove, the lap joint plate one is embedded in the lap joint groove two, the lap joint plate two is embedded in the lap joint groove one, and the bolt hole and the positioning hole are coincident and fixed, a plurality of arch plates can be sequentially spliced along the edge of the arch bridge, and the edge of the bridge arch with different lengths is covered.

[0011] Further, the support rod assembly comprises a support rod and a support screw rod, the support screw rod is arranged on the support rod, the cross-sectional size of the front half of the support rod is half of the size of the rear half, a screw rod channel is arranged on the rear half end of the support rod, an adjusting groove is arranged at the front end of the screw rod channel, the support screw rod is arranged in the screw rod channel, and a top plate is arranged at the front end of the support screw rod.

[0012] Further, the support rod front end is provided with a limiting buckle, the limiting buckle side wall is provided with an unfastening groove, the support rod rear end is provided with a force rod clamping groove, the rear side of the force rod clamping groove is provided with a limiting piece groove, and the limiting piece groove side wall is provided with a side plate sliding groove.

[0013] Further, the support rod assembly further comprises an adjusting screw sleeve and a limiting piece, the adjusting screw sleeve is arranged in the adjusting groove, and the adjusting screw sleeve and the support screw rod are connected through threads, and the limiting piece is arranged in the limiting piece groove.

[0014] As preferably, two support rods are connected through the limiting buckle, the total length can be adjusted according to the distance between the force rods, the extension amount of the support screw rod can be finely adjusted through the adjusting screw sleeve, and the support demand of the stress point with different heights and distances can be adapted; when the support rod is disassembled, the two rods are only needed to be pulled to the maximum length, the limiting buckle is aligned with the unfastening groove, and the two rods can be separated.

[0015] Further, the limiting piece is provided with a reset spring, a wedge and a hand control side plate, the reset spring is arranged at the rear side of the wedge, the hand control side plate is arranged on the side wall of the wedge, the inclined edge of the wedge is located at the entrance of the force rod clamping groove, the end of the reset spring is arranged on the inner wall of the limiting piece groove, and the hand control side plate slides in the side plate sliding groove.

[0016] As preferably, the force bearing rod clamping groove of the support rod is automatically locked by the wedge and the reset spring, the force bearing rod extrudes the wedge inclined surface to enter the clamping groove, the wedge automatically rebounds and closes, without manual locking, and when disassembling, the wedge is pulled into the limiting piece groove by pushing the hand control side plate, so that the support rod can be removed.

[0017] Further, the force bearing rod assembly comprises a top wall support rod and an extension shaft sleeve, the top wall support rod is provided with extension threaded columns at both ends, the extension threaded column at one end is arranged in the support rod hole, and the extension threaded column at the other end is connected with the other extension threaded column through the extension shaft sleeve, and the extension shaft sleeve is connected with the extension threaded column through threads.

[0018] As preferably, the top wall support rod is connected with the extension shaft sleeve through threads, the total length of the two top wall support rods can be flexibly adjusted by rotating the extension shaft sleeve, the support rod assembly can adapt to the support requirements of the inner wall of the arch bridge with different spans, the force bearing rod and the force bearing rod sleeve are connected through clamping grooves, and the force bearing rod and the extension shaft sleeve are connected through threads, so that the disassembly operation is non-destructive, and the assembly can be repeatedly used.

[0019] Further, the force bearing rod assembly further comprises force bearing rods and connecting plates, the force bearing rods are arranged on the connecting plates and the arch bottom vertical plates respectively, the two ends of the force bearing rods are arranged on one end of the connecting plate, the other end of the connecting plate is arranged on the top wall support rod, and the other force bearing rods are arranged in the force bearing rod sleeves respectively, and the force bearing rod clamping grooves are arranged on the force bearing rods.

[0020] As preferably, the force bearing rod assembly forms a closed force bearing system of the top wall support rod, the connecting plate, the force bearing rod and the arch bottom vertical plate, the top wall support rod supports the inner wall, the force bearing rod connects the connecting plate and the arch bottom vertical plate, the load is dispersed to the anchoring end of the arch bottom, the support rod assembly is connected with the upper and lower force bearing rods in a diagonal direction, the vertical and horizontal loads are further dispersed, and the number of the support rod assemblies can be flexibly increased or decreased according to the actual load of the arch bridge, such as the weight of the building materials stacked in the construction, more support rods are arranged when the load is large, and excessive support or insufficient support is avoided.

[0021] The beneficial effects obtained by the application with the above structure are as follows: 1. The outer wall plate one and the side wall plate one of the arch bottom vertical plate are respectively attached to the outer wall of the bridge arch and the arc-shaped inner wall, the outer wall plate two and the side wall plate two of the arch-shaped plate are the same, the inner and outer double-attachment is realized, and the support does not slip; the cylindrical surface of the top wall support rod is tangent to the outer cylindrical surface of the side wall plate two, is attached to the inner wall of the bridge arch to transfer the support force, and local bruising is avoided.

[0022] 2. The arch bottom vertical plate and the arch-shaped plate are matched through the cooperation of the lap plates and the lap grooves, the lap plate one is embedded into the lap groove two, the lap plate two is embedded into the lap groove one, the bolt holes and the positioning holes are coincident and fixed, a plurality of arch-shaped plates can be sequentially spliced along the edge of the arch bridge, and the edge of the bridge arch with different lengths is covered.

[0023] 3. The two support rods are connected by limit buckles and the total length can be adjusted according to the spacing of the load-bearing rods. The extension of the support screw can be finely adjusted by adjusting the screw sleeve to adapt to the support requirements of load-bearing points of different heights and spacings. When disassembling the support rods, simply pull the two rods to their maximum length and align the limit buckles with the shackle slots to disengage them.

[0024] 4. The support rod's force-bearing rod slot is automatically locked by a wedge and a return spring. The force-bearing rod can enter the slot by pressing the wedge's inclined surface, and the wedge will automatically spring back and close, without the need for manual locking. When disassembling, simply push the hand control side plate to pull the wedge into the limiting part slot, and the support rod can be removed.

[0025] 5. The top wall support rod is connected to the extension bushing by an extension threaded post. The total length of the two top wall support rods can be flexibly adjusted by rotating the extension bushing to adapt to the support requirements of the inner wall of arch bridges with different spans. The force rod and the force rod bushing are connected by a slot, and the extension bushing is connected by a thread. There is no destructive operation during disassembly, and the components can be reused.

[0026] 6. The load-bearing rod assembly forms a closed-loop load-bearing system consisting of the top wall support rod, connecting plate, load-bearing rod, and arch bottom vertical plate. The top wall support rod supports the inner wall, and the load-bearing rod connects the connecting plate and the arch bottom vertical plate, distributing the load to the anchoring end of the arch bottom. The support rod assembly obliquely connects the upper and lower load-bearing rods to further distribute the vertical and horizontal loads. Furthermore, the number of support rod assemblies can be flexibly increased or decreased according to the actual load of the arch bridge, such as the weight of building materials piled up during construction. More support rods are provided for larger loads to avoid over-support or under-support. Attached Figure Description

[0027] Figure 1 This is a perspective view of a support device for arch bridge construction proposed in this invention; Figure 2 This is a front view of a support device for arch bridge construction proposed in this invention; Figure 3 for Figure 2 A cross-sectional view along the cutting line AA; Figure 4 for Figure 3 A cross-sectional view along the cutting line BB; Figure 5 for Figure 3 A cross-sectional view along the section line CC; Figure 6 This is a schematic diagram of the arch bottom support plate of a support device for arch bridge construction proposed in this invention; Figure 7 This is a schematic diagram of the structure of the arch plate of the support device for arch bridge construction proposed in this invention; Figure 8 This is a schematic diagram of the structure of a support rod for a support device for arch bridge construction proposed in this invention; Figure 9 This is a schematic diagram of the structure of a limiting component of a support device for arch bridge construction proposed in this invention; Figure 10 for Figure 4 A magnified view of a section at point I.

[0028] Among them, 1. Arch wall panel assembly, 11. Arch bottom upright plate, 111. Outer wall panel one, 112. Side wall panel one, 113. Overlap plate one, 1131. Bolt hole, 114. Anchor hole, 115. Force rod bushing, 116. Overlap groove one, 12. Arch plate, 121. Outer wall panel two, 122. Side wall panel two, 1221. Support rod hole, 123. Overlap plate two, 124. Overlap groove two, 125. Positioning hole, 2. Support rod assembly, 21. Support rod, 211 1. Limiting buckle; 212. Shackle groove; 213. Adjustment groove; 214. Screw hole; 215. Force rod groove; 216. Limiting component groove; 217. Side plate slide groove; 22. Support screw; 221. Top plate; 23. Adjusting screw sleeve; 24. Limiting component; 241. Return spring; 242. Wedge; 243. Hand-controlled side plate; 3. Force rod assembly; 31. Top wall support rod; 311. Extension threaded column; 32. Extension bushing; 33. Force rod; 34. Connecting plate.

[0029] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0031] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0032] like Figures 1-10As shown, the present invention proposes a support device for arch bridge construction, including an arch wall panel assembly 1, a support rod assembly 2 and a force-bearing rod assembly 3. The force-bearing rod assembly 3 is disposed on the arch wall panel assembly 1, and the support rod assembly 2 is disposed on the force-bearing rod assembly 3. The arch wall panel assembly 1 includes an arch bottom upright plate 11 and an arch plate 12, with the arch plate 12 disposed between the symmetrically arranged arch bottom upright plates 11.

[0033] The arch bottom plate 11 has an outer wall plate 111 and a side wall plate 112 on both sides respectively. The top of the arch bottom plate 11 has an overlapping plate 113. The top of the other symmetrical arch bottom plate 11 has an overlapping groove 116. The center of the overlapping plate 113 and the overlapping groove 116 has a bolt hole 1131. The bottom of the outer wall plate 111 and the side wall plate 112 has an anchoring hole 114. The side wall plate 112 has a force-bearing rod bushing 115.

[0034] The arched plate 12 has an outer wall plate 121 and a side wall plate 122 on both sides. The side wall of the side wall plate 122 is symmetrically provided with support rod holes 1221. The arched plate 12 has an overlapping plate 123 and an overlapping groove 124 at both ends. The center of the overlapping plate 123 and the overlapping groove 124 is provided with a positioning hole 125.

[0035] At the connection between the arched plate 12 and the arch bottom upright plate 11, the first overlapping plate 113 is located in the second overlapping groove 124, or the second overlapping plate 123 is located in the first overlapping groove 116, and the bolt hole 1131 coincides with the positioning hole 125. At the connection between the two arched plates 12, the second overlapping plate 123 is located in the second overlapping groove 124, and the two positioning holes 125 coincide.

[0036] The support rod assembly 2 includes a support rod 21 and a support screw 22. The support screw 22 is mounted on the support rod 21. The cross-sectional dimension of the first half of the support rod 21 is half that of the second half. A screw channel 214 is provided on the second half of the support rod 21. An adjustment groove 213 is provided at the front end of the screw channel 214. The support screw 22 is located inside the screw channel 214. A top plate 221 is provided at the front end of the support screw 22.

[0037] The front end of the support rod 21 is provided with a limiting buckle 211, the side wall of the limiting buckle 211 is provided with a buckle groove 212, the rear end of the support rod 21 is provided with a force rod groove 215, the rear side of the force rod groove 215 is provided with a limiting component groove 216, and the side wall of the limiting component groove 216 is provided with a side plate sliding groove 217.

[0038] The support rod assembly 2 also includes an adjusting screw sleeve 23 and a limiting member 24. The adjusting screw sleeve 23 is located in the adjusting groove 213 and is connected to the support screw 22 by a thread. The limiting member 24 is located in the limiting member groove 216.

[0039] The limiting member 24 is provided with a return spring 241, a wedge 242 and a hand control side plate 243. The return spring 241 is located on the rear side of the wedge 242, the hand control side plate 243 is located on the side wall of the wedge 242, the inclined side of the wedge 242 is located at the entrance of the force rod groove 215, the end of the return spring 241 is located on the inner wall of the limiting member groove 216, and the hand control side plate 243 slides in the side plate groove 217.

[0040] The force-bearing rod assembly 3 includes a top wall support rod 31 and an extension bushing 32. The top wall support rod 31 has extension threaded posts 311 at both ends. One end of the extension threaded post 311 is located in the support rod hole 1221, and the other end of the extension threaded post 311 is connected to another extension threaded post 311 through the extension bushing 32. The extension bushing 32 and the extension threaded post 311 are connected by threads.

[0041] The force-bearing rod assembly 3 also includes a force-bearing rod 33 and a connecting plate 34. The force-bearing rod 33 is respectively disposed on the connecting plate 34 and the arch bottom upright plate 11. Both ends of the force-bearing rod 33 are disposed on one end of the connecting plate 34, and the other end of the connecting plate 34 is disposed on the top wall support rod 31. The other two ends of the force-bearing rod 33 are respectively disposed in the force-bearing rod bushing 115, and the force-bearing rod slot 215 is disposed on the force-bearing rod 33.

[0042] In practical use, the arch bottom plate 11 is placed at the bottom of the arch bridge, the outer wall plate 111 is attached to the outer wall of the arch, the side wall plate 112 is attached to the inner wall of the arch, the anchor bolt passes through the anchor hole 114 to nail the arch bottom plate 11 to the arch bridge, the arch plates 12 are overlapped and installed sequentially at the edge of the arch and connected to the arch bottom plate 11, the outer wall plate 121 is attached to the outer wall of the arch, the side wall plate 122 is attached to the inner wall of the arch, the anchor bolt passes through the positioning hole 125 to fix the arch plate 12 to the arch bridge. At this time, the arch bottom plate 11 and the arch plate 12 are connected to wrap around the edge of the arch, protecting and supporting the edge of the arch.

[0043] The top wall support rods 31 are installed on the arch plates 12 on both sides of the arch bridge. The top wall support rods 31 are connected to each other by extension bushings 32. At the same time, the connecting plate 34 is installed on the top wall support rods 31 and located between the top wall support rods 31 and the arch plates 12. The bottom of the connecting plate 34 is connected by a force-bearing rod 33, and the force-bearing rod 33 is inserted into the force-bearing rod bushings 115 on the bottom upright plates 11 on both sides of the arch. The cylindrical surface of the top wall support rod 31 is tangent to the outer circular surface of the side wall plate 122, so that the top wall support rod 31 fits against the inner wall of the arch, thus achieving the technical effect of supporting the inner wall of the arch.

[0044] Two support rods 21 are overlapped, and the limiting buckles 211 of the two support rods 21 are fastened to the front end of the other. The force rod slot 215 of one support rod 21 is hung on the force rod 33 on the arch bottom plate 11, and the force rod slot 215 of the other support rod 21 is hung on the force rod 33 on the opposite top connecting plate 34, forming a support rod assembly 2. During the process of the force rod 33 entering the force rod slot 215, the force rod 33 first squeezes the inclined surface of the wedge 242. After the wedge 242 is squeezed, it slides into the limiting groove 216. At the same time, the return spring 241 is compressed until the force rod 33 passes the wedge 242 and completely enters the force rod slot 215. The wedge 242 is subjected to the elastic force of the return spring 241 and closes the force rod slot 215 again. At this time, the force rod 33 will only contact the right angle side of the wedge 242, so it cannot disengage from the force rod slot 215.

[0045] Based on the distance between the force-bearing rods 33, the two support rods 21 can be pulled flexibly until the force-bearing rod slot 215 abuts against the force-bearing rod 33. Then, the adjusting sleeves 23 on the two support rods 21 are turned respectively. The adjusting sleeves 23 drive the support screw 22 to extend from the screw hole 214 until the top plate 221 at the front end of the support screw 22 abuts against the front end of the other support rod 21. At this time, the support rod assembly 2 provides support for the arch plate 12, thereby enabling the arch plate 12 to support the arch bridge. The number of support rod assemblies 2 can be flexibly configured according to the load and span of the arch bridge, thereby stably supporting the arch bridge.

[0046] During the process of the support rods 21 overlapping each other, they press against the inclined surfaces of the limiting buckle 211, causing the limiting buckle 211 to fasten onto the other support rod 21. When disassembly is required, manually push the hand control side plate 243 to pull the wedge 242 into the limiting part groove 216, adjust the distance between the two support rods 21, remove the support rods 21 from the force-bearing rod 33, and then pull the two support rods 21 to their maximum length. At this time, the limiting buckle 211 is exactly located at the shackle groove 212, and the limiting buckle 211 can disengage from each other through the recessed shackle groove 212.

[0047] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0048] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention.

[0049] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A support device for arch bridge construction, characterized by: The utility model provides an arch wall plate assembly (1), support rod assembly (2) and force bar assembly (3) are included, force bar assembly (3) is equipped in arch wall plate assembly (1), support rod assembly (2) is equipped in force bar assembly (3) on, The arch wall plate assembly (1) includes an arch bottom vertical plate (11) and an arch-shaped plate (12), and the arch-shaped plate (12) is arranged between the symmetrically arranged arch bottom vertical plates (11); The arch bottom vertical plate (11) is provided with an outer wall plate one (111) and a side wall plate one (112) on both sides respectively, and the side wall plate one (112) is provided with a force bar shaft sleeve (115); The support rod assembly (2) includes a support rod (21) and a support screw rod (22), the support screw rod (22) is arranged on the support rod (21), and the rear end of the support rod (21) is provided with a force bar clamping groove (215); The force bar assembly (3) includes a top wall support rod (31) and an extension shaft sleeve (32), the top wall support rod (31) is provided with an extension threaded column (311) at both ends, the extension threaded column (311) at one end is arranged in a support rod hole (1221), and the extension threaded column (311) at the other end is connected with another extension threaded column (311) through the extension shaft sleeve (32), and the extension shaft sleeve (32) is connected with the extension threaded column (311) through threads; The force bar assembly (3) further includes a force bar (33) and a connecting plate (34), the force bar (33) is arranged on the connecting plate (34) and the arch bottom vertical plate (11) respectively, the both ends of the force bar (33) are arranged on one end of the connecting plate (34), the other end of the connecting plate (34) is arranged on the top wall support rod (31), and the both ends of another force bar (33) are arranged in the force bar shaft sleeve (115), and the force bar clamping groove (215) is arranged on the force bar (33).

2. The support device for arch bridge construction according to claim 1, characterized in that: The arch bottom vertical plate (11) is provided with a lap plate one (113) at the top, and the top of the other arch bottom vertical plate (11) arranged symmetrically is provided with a lap groove one (116), the center of the lap plate one (113) and the lap groove one (116) is provided with a bolt hole (1131), and the bottom of the outer wall plate one (111) and the side wall plate one (112) is provided with an anchoring hole (114).

3. The support device for arch bridge construction according to claim 2, characterized in that: The arch-shaped plate (12) is provided with an outer wall plate two (121) and a side wall plate two (122) on both sides respectively, the side wall of the side wall plate two (122) is symmetrically provided with a support rod hole (1221), the both ends of the arch-shaped plate (12) are provided with a lap plate two (123) and a lap groove two (124) respectively, and the center of the lap plate two (123) and the lap groove two (124) is provided with a positioning hole (125).

4. The supporting device for arch bridge construction according to claim 3, characterized in that: The lap plate one (113) is arranged in the lap groove two (124) or the lap plate two (123) is arranged in the lap groove one (116) at the connecting position of the arch-shaped plate (12) and the arch bottom vertical plate (11), the bolt hole (1131) and the positioning hole (125) are coincided, the lap plate two (123) is arranged in the lap groove two (124) at the mutual connecting position of the two arch-shaped plates (12), and the two positioning holes (125) are coincided.

5. The supporting device for arch bridge construction according to claim 4, characterized in that: The cross-sectional size of the front half of the support rod (21) is half of the size of the rear half, a screw hole (214) is arranged on the rear end of the support rod (21), the front end of the screw hole (214) is provided with an adjusting groove (213), the support screw (22) is arranged in the screw hole (214), and the front end of the support screw (22) is provided with a top plate (221).

6. The supporting device for arch bridge construction according to claim 5, characterized in that: The front end of the support rod (21) is provided with a limiting buckle (211), the side wall of the limiting buckle (211) is provided with an unbuckling groove (212), the rear side of the stress rod clamping groove (215) is provided with a limiting piece groove (216), and the side wall of the limiting piece groove (216) is provided with a side plate sliding groove (217).

7. The supporting device for arch bridge construction according to claim 6, characterized in that: The support rod assembly (2) further comprises an adjusting screw sleeve (23) and a limiting piece (24), the adjusting screw sleeve (23) is arranged in the adjusting groove (213), and the adjusting screw sleeve (23) and the support screw (22) are connected through threads, and the limiting piece (24) is arranged in the limiting piece groove (216).

8. The supporting device for arch bridge construction according to claim 7, characterized in that: The limiting piece (24) is provided with a reset spring (241), a wedge (242) and a hand control side plate (243), the reset spring (241) is arranged at the rear side of the wedge (242), the hand control side plate (243) is arranged on the side wall of the wedge (242), the oblique edge of the wedge (242) is located at the entrance of the stress rod clamping groove (215), the end of the reset spring (241) is arranged on the inner wall of the limiting piece groove (216), and the hand control side plate (243) slides in the side plate sliding groove (217).

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