Fabricated pultrusion FRP plate-corrugated steel arch bridge structure and construction method thereof
By adopting prefabricated curved FRP bridge deck panels and telescopic FRP panel modules on the corrugated steel arch bridge, the problem of FRP sheet adapting to curved surface forms and thermal expansion stress release is solved, and an efficient and durable prefabricated pultruded FRP sheet-corrugated steel arch bridge structure is achieved.
Patent Information
- Application Number
- CN202510394954.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2025-05-02
AI Technical Summary
The prior art is difficult to adapt the standardized pultruded FRP plate to the curved surface form of corrugated steel arches, and the thermal expansion coefficient of FRP and steel is different, resulting in difficult control of interface stress.
The prefabricated curved FRP bridge deck is adopted, and the curved adaptability of the FRP board is achieved through the C-shaped ring buckle and the circular ring buckle nesting structure, and a telescopic FRP board module is set up at the arch foot to release temperature stress through the displacement of the FRP board module.
The efficient adaptability of FRP sheets on corrugated steel arch bridges and the release of thermal expansion stress, improving the durability and construction efficiency of the overall structure.
Smart Images
Figure CN119913820A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of civil engineering, and in particular to an assembled pultruded FRP plate-corrugated steel arch bridge structure and a construction method thereof. Background Art
[0002] In recent years, prefabricated structures have developed rapidly in the field of civil engineering with their advantages of standardized prefabrication and industrialized construction, and are widely used in projects such as buildings, bridges, and underground integrated pipe corridors. Among them, corrugated steel arch structures have been successfully used in projects such as shed tunnels and arch bridges due to their light weight, high strength, and efficient construction; while fiber-reinforced plastic (FRP) panels have shown unique advantages in prefabricated beam bridges due to their excellent corrosion resistance and rapid construction characteristics.
[0003] It is worth noting that the application of FRP plates in the deck system of corrugated steel arch bridges can form complementary advantages: FRP bridge decks can not only significantly improve the corrosion resistance of the structure, but its prefabrication characteristics can also form a synergistic effect with the rapid construction of corrugated steel arches, further shortening the overall construction period. However, there are certain problems in the application of this composite structure: FRP plates can be standardized through pultrusion, but this industrially produced straight plate is difficult to adapt to the curved surface of the corrugated steel arch; the adjustment of structural curvature caused by changes in bridge span and arch height requires FRP standard sections to have stronger geometric adaptability; FRP and steel have different thermal expansion coefficients, and the interface stress caused by temperature changes needs to be controlled. Breaking through these technical bottlenecks will promote the development of prefabricated composite structures towards more efficient and durable intelligent construction. Summary of the invention
[0004] The object of the present invention is to provide an assembled pultruded FRP plate-corrugated steel arch bridge structure and a construction method thereof. The assembled pultruded FRP plate-corrugated steel arch bridge is industrially constructed and quickly installed, and the excellent corrosion resistance of the FRP plate is used to improve the durability of the entire arch bridge structure.
[0005] The technical solution of the present invention is: an assembled pultruded FRP plate-corrugated steel arch bridge structure, including a corrugated steel arch structure and an assembled curved FRP bridge deck connected to the top surface of the corrugated steel arch structure; the assembled curved FRP bridge deck includes a curved assembled FRP plate integral module and a telescopic FRP plate module, both ends of the curved assembled FRP plate integral module are connected to the telescopic FRP plate module through a ring buckle structure composed of a C-shaped ring buckle and a circular ring buckle nested, and epoxy resin is applied on the top of the ring buckle structure to fill the gap between the FRP plates.
[0006] Furthermore, the corrugated steel arch structure is connected to the assembled curved FRP bridge deck through permanent bolts located at the interface between the arch foot and the arch top and epoxy resin near the permanent bolts; the FRP plates in the assembled curved FRP bridge deck are produced by pultrusion process.
[0007] Furthermore, the telescopic FRP plate module includes an A-type FRP plate and a B-type FRP plate, and adjacent B-type FRP plates and A-type FRP plates and B-type FRP plates are connected by embedded C-shaped rings and circular buckles.
[0008] Furthermore, the A-type FRP plate is composed of a box-shaped FRP plate and a circular ring buckle located on one side of the box-shaped FRP plate; the B-type FRP plate includes a box-shaped FRP plate with an inner groove, one side of the box-shaped FRP plate with an inner groove is an embedded C-shaped ring, and the other side of the box-shaped FRP plate with an inner groove is provided with a circular ring buckle.
[0009] Furthermore, the embedded C-shaped ring and the circular ring buckle form a gap fitting structure, wherein the inner diameter of the embedded C-shaped ring is larger than the outer diameter of the circular ring buckle, and there is a controllable fitting gap between the embedded C-shaped ring and the circular ring buckle, and the circular ring buckle can slide in the embedded C-shaped ring, and the sliding range is limited by the geometric constraints of the inner wall of the C-shaped ring.
[0010] Furthermore, the curved assembled FRP plate overall module includes a C-type FRP plate and a D-type FRP plate, and several D-type FRP plates are connected in sequence on the left and right, and the C-type FRP plate is connected to the D-type FRP plate at the end of the curved assembled FRP plate overall module; adjacent D-type FRP plates and D-type FRP plates and C-type FRP plates are connected by a buckle structure composed of nested C-shaped buckles and circular buckles.
[0011] Furthermore, the D-type FRP plate is composed of a box-shaped FRP plate and C-shaped buckles and circular buckles connected to both sides of the box-shaped FRP plate; the C-type FRP plate is composed of a box-shaped FRP plate and C-shaped buckles connected to both sides of the box-shaped FRP plate; epoxy resin is applied on the top of the buckle structure between adjacent FRP plates to fill the gaps between the FRP plates.
[0012] Furthermore, the C-shaped ring buckle and the circular ring buckle are coaxially arranged in the box-shaped FRP plate, the geometric centers of the C-shaped ring buckle and the circular ring buckle are located on the horizontal symmetry axis of the plate, the inner diameter parameters of the C-shaped ring buckle match the outer diameter of the circular ring buckle to form a coaxial nested structure, and the main structure of the FRP plate where the C-shaped ring buckle and the circular ring buckle are located maintain a preset gap.
[0013] Furthermore, permanent bolts are arranged at the front and rear ends of the A-type FRP plate at the arch foot and the D-type FRP plate at the arch top, and epoxy resin is applied at the interface between the A-type FRP plate and the D-type FRP plate where the permanent bolts are installed and the corrugated steel arch structure.
[0014] The construction method applied to the assembled pultruded FRP sheet-corrugated steel arch bridge structure includes the following steps: 1) Produce corrugated steel arch structures and various types of FRP plates in the factory according to the designed dimensions, and drill holes at the designed locations; 2) Install the corrugated steel arch structure to the designated location; 3) Apply epoxy resin on the crest of the top surface of the corrugated steel arch structure where the FRP plate with permanent bolts is installed, so that the application area of each section can cover the bottom surface of a single FRP plate. Before the epoxy resin solidifies, install the A-type FRP plate and the first D-type FRP plate at the arch top and arch foot respectively, and fill the contact surface between the FRP plate and the corrugated steel arch structure with epoxy resin by extrusion. Use permanent bolts to pass through the designed holes to connect the FRP plate and the corrugated steel arch structure together; 4) Connect the first D-type FRP plate with the adjacent FRP plates by nesting the C-shaped ring buckle and the circular ring buckle on both sides, install the remaining FRP plates in the curved assembly FRP plate overall module in sequence by nesting, and install the connected B-type FRP plates at both ends of the curved assembly FRP plate overall module, and use temporary bolts to connect the connected B-type FRP plates to the corrugated steel arch structure; 5) Install the remaining B-type FRP panels, assemble them into telescopic FRP panel modules through the gap fit structure formed by the embedded C-shaped ring and the circular ring buckle, and connect the telescopic FRP panel module with the curved assembly FRP panel overall module through the nested connection of the C-shaped ring buckle and the circular ring buckle at the end of the telescopic FRP panel module; 6) Apply epoxy resin on the top of the ring buckle structure composed of C-shaped ring buckles and circular ring buckles nested between all adjacent FRP plates to fill the gaps between the ring FRP plates; 7) Remove temporary bolts to form an assembled pultruded FRP sheet-corrugated steel arch bridge structure.
[0015] Compared with the prior art, the present invention has the following advantages: 1. Standardized FRP plate components are prepared by pultrusion process, and the cross section adopts coaxial hinge design. Adjacent plates can rotate freely through nested structure, forming a bridge deck system that can adapt to different arch bridge curvatures; telescopic FRP plate modules are set at the arch foot, and the displacement of FRP plate modules can release the temperature stress between FRP plate and corrugated steel arch, effectively reducing the difference in thermal expansion coefficient of different materials. Due to the solution of standardization, industrialization and material properties, the assembled pultruded FRP plate-corrugated steel arch bridge structure can be industrially constructed and quickly installed, and the excellent corrosion resistance of FRP plate can be used to improve the durability of the entire arch bridge structure.
[0016] 2. Compared with the FRP bridge deck produced by the traditional pultrusion process, which can only be laid on beam bridges, the assembled curved FRP bridge deck can achieve free rotation through the nested structure between adjacent plates, thereby adapting to the curve line shape of the arch bridge and realizing the layout of the pultruded FRP plate on the arch bridge.
[0017] 3. Compared with the traditional resin transfer molding process that requires customized special molds for arch bridges with different curvatures, the assembled curved FRP bridge deck using the pultrusion process can use a set of standardized FRP plate molds to adapt to arch bridges with different curvatures, and can quickly and continuously generate various standardized FRP plates through the pultrusion process to achieve industrialized construction.
[0018] 4. By setting a telescopic FRP plate module at the arch foot, the temperature stress of the FRP plate is released through the displacement of the telescopic module, which effectively reduces the influence of the interface temperature stress caused by the difference in thermal expansion coefficients between FRP and steel.
[0019] 5. Compared with steel-concrete composite arch bridges, FRP plates and corrugated steel arch structures are both lightweight prefabricated components, with low lifting weight requirements and no concrete curing time, which can greatly speed up on-site construction; 6. The assembled pultruded FRP plate-corrugated steel arch bridge structure can utilize the corrosion resistance of the FRP plate to protect the lower corrugated steel arch bridge structure from erosion from the bridge deck structure, and the lower corrugated steel arch structure can play a construction support role for the assembled curved FRP bridge deck during the construction process, thereby speeding up the construction of the FRP bridge deck. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a structural diagram of the assembled pultruded FRP plate-corrugated steel arch bridge of the present invention; Figure 2 It is a partial schematic diagram of the arch foot of the assembled pultruded FRP plate-corrugated steel arch bridge structure of the present invention; Figure 3 It is a partial schematic diagram of the arch top of the assembled pultruded FRP plate-corrugated steel arch bridge structure of the present invention; Figure 4 This is a structural diagram of a corrugated steel arch of the present invention; Figure 5 This is a structural diagram of a telescopic FRP plate module of the present invention; Figure 6 This is a structural diagram of the overall module of the curved assembly FRP plate of the present invention; Figure 7 This is a structural diagram of a type A FRP plate of the present invention; Figure 8 This is a structural diagram of a type B FRP plate of the present invention; Fig. 9 This is a structural diagram of a C-type FRP plate of the present invention; Fig.10 This is a structural diagram of a D-type FRP plate of the present invention; In the figure: 1. Corrugated steel arch structure; 2. Prefabricated curved FRP bridge deck; 3. Permanent bolts; 4. Curved assembled FRP plate integral module; 5. Telescopic FRP plate module; 6. Temporary bolts; 7. Upper coating epoxy resin; 8. Type A FRP plate; 9. Type B FRP plate; 10. Type C FRP plate; 11. Type D FRP plate; 12. Box-shaped FRP plate; 13. Circular buckle; 14. Box-shaped FRP plate with inner groove; 15. C-shaped buckle; 16. Embedded C-shaped ring. DETAILED DESCRIPTION
[0021] In order to make the above features and advantages of the present invention more understandable, embodiments are given below with reference to the accompanying drawings for detailed description, but the present invention is not limited thereto.
[0022] refer to Figures 1 to 10 An assembled pultruded FRP plate-corrugated steel arch bridge structure, comprising a corrugated steel arch structure 1 and an assembled curved FRP bridge deck 2 connected to the top surface of the corrugated steel arch structure 1, wherein the corrugated steel arch structure 1 is connected to the assembled curved FRP bridge deck 2 via permanent bolts 3 located at the interface between the arch foot and the arch top and epoxy resin near the permanent bolts 3. The assembled curved FRP bridge deck 2 comprises a curved assembled FRP plate integral module 4 and a telescopic FRP plate module 5, wherein the curved assembled FRP plate integral module 4 is located in the middle of the assembled curved FRP bridge deck 2, and both ends of the curved assembled FRP plate integral module 4 are connected to the telescopic FRP plate module 5 via a ring buckle structure composed of a C-shaped ring buckle 15 and a circular ring buckle 13, and epoxy resin is applied on the top of the ring buckle structure to fill the gap between the FRP plates to form an upper coating epoxy resin 7.
[0023] In this embodiment, the telescopic FRP plate module 5 includes an A-type FRP plate 8 and a B-type FRP plate 9. Specifically, the A-type FRP plate 8 is composed of a box-shaped FRP plate 12 and a circular ring buckle 13 located on one side of the box-shaped FRP plate 12; the B-type FRP plate 9 includes a box-shaped FRP plate 14 with an inner groove, one side of the box-shaped FRP plate 14 with an inner groove is an embedded C-shaped ring 16, and the other side of the box-shaped FRP plate 14 with an inner groove is provided with a circular ring buckle 13; the adjacent B-type FRP plates 9 and the A-type FRP plates 8 and the B-type FRP plates 9 are connected by the embedded C-shaped ring 16 and the circular ring buckle 13.
[0024] In this embodiment, the embedded C-shaped ring 16 and the circular ring buckle 13 form a gap fitting structure, wherein the inner diameter of the embedded C-shaped ring 16 is larger than the outer diameter of the circular ring buckle 13, and there is a controllable fitting gap between the embedded C-shaped ring 16 and the circular ring buckle 13. The circular ring buckle 13 can slide in the embedded C-shaped ring 16, and the sliding range is limited by the geometric constraints of the inner wall of the C-shaped ring 16.
[0025] In this embodiment, the curved FRP plate assembly integral module 4 includes a C-type FRP plate 10 and a D-type FRP plate 11, and a plurality of D-type FRP plates 11 are connected in sequence on the left and right sides, and the C-type FRP plate 10 is connected to the D-type FRP plate 11 at the end of the curved FRP plate assembly integral module 4. Specifically, the D-type FRP plate 11 is composed of a box-shaped FRP plate 12 and a C-shaped ring buckle 15 and a circular ring buckle 13 correspondingly connected to both sides of the box-shaped FRP plate 12; the C-type FRP plate 10 is composed of a box-shaped FRP plate 12 and two C-shaped ring buckles 15 for connecting to both sides of the box-shaped FRP plate 12; the adjacent D-type FRP plates 11 and the D-type FRP plates 11 and the C-type FRP plates 10 are connected by a ring buckle structure composed of nested C-shaped ring buckles 15 and circular ring buckles 13. Epoxy resin is applied on the top of the ring buckle structure between adjacent FRP plates to fill the gap between the FRP plates, thereby forming an upper coating epoxy resin 7.
[0026] In this embodiment, the C-shaped ring buckle 15 and the circular ring buckle 13 are coaxially arranged in the box-shaped FRP plate 12, and the geometric centers of the C-shaped ring buckle 15 and the circular ring buckle 13 are both located on the horizontal symmetry axis of the plate. The inner diameter parameters of the C-shaped ring buckle 15 are strictly matched with the outer diameter of the circular ring buckle 13 to form a coaxial nested structure, and a preset gap is maintained between the C-shaped ring buckle 15 and the main structure of the FRP plate where the circular ring buckle 13 is located.
[0027] In this embodiment, permanent bolts 3 are provided at the front and rear ends of the A-type FRP plate 8 at the arch foot and the D-type FRP plate 11 at the arch top, and epoxy resin is applied at the interface between the A-type FRP plate 8 and the D-type FRP plate 11 where the permanent bolts 3 are installed and the corrugated steel arch structure 1.
[0028] In this embodiment, the FRP panels in the assembled curved FRP bridge deck 2 are produced by pultrusion.
[0029] In this embodiment, the arc surface of the corrugated steel arch structure 1 is provided with a corrugated structure along the axial direction, and the shape of a single section of the corrugated structure can be an inverted trapezoid.
[0030] The construction method applied to the assembled pultruded FRP sheet-corrugated steel arch bridge structure includes the following steps: 1) Produce the corrugated steel arch structure 1 in the factory according to the designed dimensions, make four types of FRP plate molds of A, B, C, and D according to the designed dimensions, produce the FRP plate in a linear shape through pultrusion process and cut the corresponding length according to the bridge width, and drill bolt holes at the designed positions of the corrugated steel arch structure 1 and the FRP plate; 2) Install the corrugated steel arch structure 1 to the designated location; 3) Apply epoxy resin on the crest of the top surface of the corrugated steel arch structure 1 where the FRP plate with permanent bolts 3 is installed, so that the application area of each section can cover the bottom surface of a single FRP plate, and install the A-type FRP plate 8 and the first D-type FRP plate 11 at the arch top and arch foot respectively before the epoxy resin solidifies, and fill the contact surface between the FRP plate and the corrugated steel arch structure with epoxy resin by extrusion, and connect the FRP plate and the corrugated steel arch structure 1 together with permanent bolts 3 passing through the designed holes; 4) Connect the first D-type FRP plate 11 with the adjacent FRP plates by nesting the C-shaped ring buckle 15 and the circular ring buckle 13 on both sides, install the remaining FRP plates in the curved assembly FRP plate overall module 4 in sequence by means of the nesting connection, install the connected B-type FRP plates 9 at both ends of the curved assembly FRP plate overall module 4, and connect the connected B-type FRP plates 9 with the corrugated steel arch structure 1 using temporary bolts 6; 5) Install the remaining B-type FRP panels 9, assemble them into a telescopic FRP panel module 5 through the gap fit structure formed by the embedded C-shaped ring 16 and the circular ring buckle 13, and connect the telescopic FRP panel module 5 to the curved assembly FRP panel integral mold 4 by nesting the C-shaped ring buckle 15 and the circular ring buckle 13 at the end of the telescopic FRP panel module 5; 6) Apply epoxy resin on the top of the ring buckle structure composed of nested C-shaped ring buckles 15 and circular ring buckles 13 between all adjacent FRPs to fill the gaps between the ring FRP plates and form an upper coating epoxy resin 7; 7) Remove the temporary bolt 6 to form an assembled pultruded FRP plate-corrugated steel arch bridge structure.
[0031] The above description is only a preferred embodiment of the present invention. For ordinary technicians in this field, according to the teachings of the present invention, designing different forms of assembled pultruded FRP plate-corrugated steel arch bridge structures and construction methods thereof does not require creative labor. Without departing from the principles and spirit of the present invention, all equal changes, modifications, substitutions and variations made within the scope of the patent application of the present invention should fall within the scope of the present invention.
Claims
1. An assembled pultruded FRP sheet-corrugated steel arch bridge structure, characterized in that: It includes a corrugated steel arch structure and an assembled curved FRP bridge deck connected to the top surface of the corrugated steel arch structure; the assembled curved FRP bridge deck includes a curved assembled FRP plate integral module and a telescopic FRP plate module, both ends of the curved assembled FRP plate integral module are connected to the telescopic FRP plate module through a ring buckle structure composed of nested C-shaped ring buckles and circular ring buckles, and epoxy resin is applied on the top of the ring buckle structure to fill the gaps between the FRP plates.
2. The assembled pultruded FRP plate-corrugated steel arch bridge structure according to claim 1 is characterized in that: The corrugated steel arch structure is connected to the assembled curved FRP bridge deck through permanent bolts located at the interface between the arch foot and the arch top and epoxy resin near the permanent bolts; the FRP plates in the assembled curved FRP bridge deck are produced by pultrusion process.
3. The assembled pultruded FRP plate-corrugated steel arch bridge structure according to claim 1 or 2, characterized in that: The telescopic FRP plate module comprises an A-type FRP plate and a B-type FRP plate, and adjacent B-type FRP plates and A-type FRP plates and B-type FRP plates are connected by embedded C-shaped rings and circular ring buckles.
4. The assembled pultruded FRP plate-corrugated steel arch bridge structure according to claim 3 is characterized in that: The A-type FRP plate is composed of a box-shaped FRP plate and a circular ring buckle located on one side of the box-shaped FRP plate; the B-type FRP plate includes a box-shaped FRP plate with an inner groove, one side of the box-shaped FRP plate with an inner groove is an embedded C-shaped ring, and the other side of the box-shaped FRP plate with an inner groove is provided with a circular ring buckle.
5. The assembled pultruded FRP plate-corrugated steel arch bridge structure according to claim 4 is characterized in that: The embedded C-shaped ring and the circular ring buckle form a gap fitting structure, wherein the inner diameter of the embedded C-shaped ring is larger than the outer diameter of the circular ring buckle, and there is a controllable fitting gap between the embedded C-shaped ring and the circular ring buckle. The circular ring buckle can slide in the embedded C-shaped ring, and the sliding range is limited by the geometric constraints of the inner wall of the C-shaped ring.
6. The assembled pultruded FRP plate-corrugated steel arch bridge structure according to claim 1, characterized in that: The curved assembly FRP plate overall module includes a C-type FRP plate and a D-type FRP plate, and a plurality of D-type FRP plates are connected in sequence on the left and right sides. The C-type FRP plate is connected to the D-type FRP plate at the end of the curved assembly FRP plate overall module; adjacent D-type FRP plates and D-type FRP plates and C-type FRP plates are connected by a buckle structure composed of nested C-shaped buckles and circular buckles.
7. The assembled pultruded FRP plate-corrugated steel arch bridge structure according to claim 6 is characterized in that: The D-type FRP plate is composed of a box-shaped FRP plate and C-shaped buckles and circular buckles connected to both sides of the box-shaped FRP plate; the C-type FRP plate is composed of a box-shaped FRP plate and C-shaped buckles connected to both sides of the box-shaped FRP plate; epoxy resin is applied on the top of the buckle structure between adjacent FRP plates to fill the gaps between the FRP plates.
8. The assembled pultruded FRP plate-corrugated steel arch bridge structure according to claim 6 or 7, characterized in that: The C-shaped ring buckle and the circular ring buckle are coaxially arranged in the box-shaped FRP plate. The geometric centers of the C-shaped ring buckle and the circular ring buckle are both located on the horizontal symmetry axis of the plate. The inner diameter parameters of the C-shaped ring buckle match the outer diameter of the circular ring buckle to form a coaxial nested structure. The C-shaped ring buckle and the main structure of the FRP plate where the circular ring buckle are located maintain a preset gap.
9. The assembled pultruded FRP plate-corrugated steel arch bridge structure according to claim 2, characterized in that: Permanent bolts are arranged at the front and rear ends of the A-type FRP plate at the arch foot and the D-type FRP plate at the arch top, and epoxy resin is applied at the interface between the A-type FRP plate and the D-type FRP plate where the permanent bolts are installed and the corrugated steel arch structure.
10. The construction method of the assembled pultruded FRP plate-corrugated steel arch bridge structure according to any one of claims 1 to 9, characterized in that: The following steps are involved: 1) Produce corrugated steel arch structures and various types of FRP plates in the factory according to the designed dimensions, and drill holes at the designed locations; 2) Install the corrugated steel arch structure to the designated location; 3) Apply epoxy resin on the crest of the top surface of the corrugated steel arch structure where the FRP plate with permanent bolts is installed, so that the application area of each section can cover the bottom surface of a single FRP plate. Before the epoxy resin solidifies, install the A-type FRP plate and the first D-type FRP plate at the arch top and arch foot respectively, and fill the contact surface between the FRP plate and the corrugated steel arch structure with epoxy resin by extrusion. Use permanent bolts to pass through the designed holes to connect the FRP plate and the corrugated steel arch structure together; 4) Connect the first D-type FRP plate with the adjacent FRP plates by nesting the C-shaped ring buckle and the circular ring buckle on both sides, install the remaining FRP plates in the curved assembly FRP plate overall module in sequence by nesting, and install the connected B-type FRP plates at both ends of the curved assembly FRP plate overall module, and use temporary bolts to connect the connected B-type FRP plates to the corrugated steel arch structure; 5) Install the remaining B-type FRP panels, assemble them into telescopic FRP panel modules through the gap fit structure formed by the embedded C-shaped ring and the circular ring buckle, and connect the telescopic FRP panel module with the curved assembly FRP panel overall module through the nested connection of the C-shaped ring buckle and the circular ring buckle at the end of the telescopic FRP panel module; 6) Apply epoxy resin on the top of the ring buckle structure composed of C-shaped ring buckles and circular ring buckles nested between all adjacent FRP plates to fill the gaps between the ring FRP plates; 7) Remove temporary bolts to form an assembled pultruded FRP sheet-corrugated steel arch bridge structure.