Telescopic assembled high-speed railway bridge and assembling method thereof

Abstract

The application discloses a telescopic assembled high-speed railway bridge and an assembling method thereof, which comprises frame plates (1), built-in movable plates (14), left side plates (3), right side plates (4), abutting pieces (6), length adjusting assemblies, left side assembling assemblies and right side assembling assemblies; the left side plates and the right side plates are arranged at edges of the frame plates, a plurality of groups of the left side assembling assemblies are arranged on the left side plates, a plurality of groups of the right side assembling assemblies are arranged on the right side plates, the left side assembling assemblies and the right side assembling assemblies are detachably connected to enable two frame plates to be transversely assembled; a pair of the built-in movable plates are slidably embedded in the frame plates through the length adjusting assemblies, two abutting pieces are arranged at one end of one built-in movable plate and the other end of the other built-in movable plate, the abutting pieces extend to the outside of the frame plates, and the abutting pieces of one frame plate abut on the other frame plate when the two frame plates are longitudinally assembled. The application can quickly assemble the frame plates, is convenient to disassemble, can adjust the assembling interval, and is favorable for improving construction efficiency and construction quality.

Description

Technical Field

[0001] This invention relates to a railway bridge structure, and more particularly to a retractable prefabricated high-speed railway bridge and its assembly method. Background Technology

[0002] Railway bridges are structures built to cross rivers, lakes, straits, valleys, or other obstacles, and to facilitate grade-separated intersections of railway lines with other railway lines or roads. With the increasing application of prefabricated structures in building construction, prefabricated beams and slabs can also be used in the construction of railway bridges.

[0003] However, during construction, errors in beam processing and installation lead to significant assembly difficulties, sometimes even making assembly impossible, of railway bridges, thus affecting construction progress and quality. Furthermore, existing prefabricated bridge technologies lack easily simplistic assembly and disassembly structures, making post-installation adjustments impossible. If assembly errors occur, disassembly is the only option, which is inconvenient, inefficient, and prone to damaging the prefabricated bridge. Therefore, there is a need for a prefabricated high-speed railway bridge that can be quickly assembled and disassembled and is easily adjustable. Summary of the Invention

[0004] The purpose of this invention is to provide a retractable prefabricated high-speed railway bridge and its assembly method, which can quickly assemble the frame panels, is easy to disassemble, and allows for adjustment of the assembly spacing, thereby improving construction efficiency and quality.

[0005] This invention is implemented as follows:

[0006] A retractable prefabricated high-speed railway bridge includes a frame plate, built-in movable plates, a left side plate, a right side plate, abutting members, a length adjustment assembly, a left side assembly assembly, and a right side assembly assembly. The left side plate is located at the top left edge of the frame plate, and the right side plate is located at the top right edge of the frame plate. Several sets of left side assembly assemblies are spaced apart on the left side plate, and several sets of right side assembly assemblies are spaced apart on the right side plate. The sets of left side assembly assemblies correspond one-to-one with the sets of right side assembly assemblies and are detachably connected, allowing the two frame plates to be assembled laterally along the width direction. A pair of built-in movable plates are slidably embedded in the frame plate through the length adjustment assembly. Two abutting members are located at one end of one built-in movable plate and the other end of the other built-in movable plate, respectively. The two abutting members can extend to the outside of the frame plate, so that when the two frame plates are assembled longitudinally along the length direction, the abutting member of one frame plate can abut against the other frame plate.

[0007] An embedding slot is formed on the left side plate and an embedding plate is formed on the right side plate. The embedding plate can be matched and embedded in the embedding slot, so that the left side plate and the right side plate can be inserted and connected, thereby assembling the two adjacent frame plates along the width direction.

[0008] Each of the left assembly components comprises a hollow locking block and a rotating screw; each of the right assembly components comprises a limiting hollow block, an inner locking plate and a limiting baffle; the hollow locking block is fixedly arranged on the left plate, and an inner locking groove is formed in the hollow locking block and penetrates the hollow locking block along the width direction of the frame plate; a thread groove is formed on the top of the hollow locking block, and the rotating screw is threadedly screwed into the hollow locking block through the thread groove and inserted into the inner locking groove; the limiting hollow block is arranged on the right plate, and a sliding groove is formed in the limiting hollow block and penetrates the limiting hollow block along the width direction of the frame plate; one end of the inner locking plate is formed with an abutting circular groove, and the limiting baffle is arranged at the other end of the inner locking plate; the inner locking plate is slidably penetrated through the limiting hollow block through a sliding mechanism, so that one end of the inner locking plate is inserted into the hollow locking block, and the rotating screw is inserted into the abutting circular groove.

[0009] The sliding mechanism comprises a side hollow frame and a rotating shaft; the side hollow frame is arranged on the limiting hollow block, and the side hollow frame has a hollow structure and the hollow cavity of the side hollow frame is communicated with the sliding groove; one end of the rotating sleeve shaft is inserted into the hollow cavity of the side hollow frame and connected with a gear, and an outer gear rack is formed at the edge of the inner locking plate, so that the gear is meshingly connected with the outer gear rack.

[0010] The frame plate is formed with an inner movable groove, and the inner movable groove penetrates both end faces of the frame plate; the length of the inner movable groove is greater than the length of the inner movable plate, and a pair of inner movable plates are slidably embedded in the inner movable groove through a length adjusting assembly, and the abutting member can extend to the outside of the inner movable groove.

[0011] The length adjusting assembly comprises a connecting sleeve, a rotating gear disc and an inner gear rack; the connecting sleeve is arranged on the left side face of the frame plate and located below the left plate, one end of the connecting sleeve is inserted into the inner movable groove and coaxially fixedly connected with the rotating gear disc; the opposite faces of the pair of inner movable plates are each provided with an inner gear rack, and the rotating gear disc is arranged between the pair of inner movable plates and meshingly connected between the pair of inner gear racks.

[0012] The top and bottom of the inner movable groove are each formed with an inner limiting groove, one end of the two inner limiting sliding blocks is respectively slidably embedded in the two inner limiting grooves, and the other end of the two inner limiting sliding blocks is respectively fixedly connected with the opposite face of the pair of inner movable plates.

[0013] The two ends of the frame plate are formed with abutting blocks, one end of the inner movable plate not provided with the abutting member can contact the inner wall of the abutting block, and the abutting members of adjacent frame plates can contact the outer wall of the abutting block.

[0014] The top face of the frame plate is formed with a plurality of sanding strips at intervals.

[0015] A telescopic assembly method of a high-speed railway bridge, comprising the following steps:

[0016] Step 1: After the installation of the first frame plate is completed, the second frame plate is hoisted to the side of the first frame plate, the left side plate is inserted with the right side plate, and the preliminary positioning and fixing of the transverse assembly of the two frame plates is completed;

[0017] Step 2: connecting the left assembly component and the right assembly component to make the transverse assembly connection of the two frame plates;

[0018] Step 3: repeating step 2 to complete the transverse assembly of the first row of frame plates;

[0019] Step 4: hoisting the second row of first frame plates to one end of the first row of first frame plates, adjusting the extension position of the built-in movable plate and the abutting member through the length adjusting component, and making the longitudinal assembly of the second row of first frame plates and the first row of first frame plates;

[0020] Step 5: repeating steps 2 to 4 to complete the transverse assembly of the second row of frame plates and the longitudinal assembly of the second row of frame plates and the first row of frame plates;

[0021] Step 6: repeating step 5 until the assembly of all frame plates is completed to form a high-speed railway bridge structure.

[0022] Compared with the prior art, the present application has the following beneficial effects:

[0023] 1、The left assembly component and the right assembly component are provided in the present application, the abutting circular groove on the built-in locking plate is inserted with the rotating screw rod, the left side plate and the right side plate can be locked and connected, the transverse assembly of the two frame plates can be reliably connected, the transverse assembly spacing of the two frame plates is adjusted through the meshing transmission of the built-in locking plate, the assembly difficulty caused by the machining error, assembly error and the like is avoided, and the assembly efficiency and quality are improved.

[0024] 2、The length adjusting component is provided in the present application, the meshing transmission of the built-in rack and the rotating gear disc is utilized to realize the horizontal sliding of the built-in movable plate in the built-in movable groove, the abutting member is extended outwardly from the frame plate and connected with the longitudinally adjacent frame plate, the longitudinal connection spacing of the two adjacent frame plates is effectively controlled, the assembly difficulty caused by the machining error, assembly error and the like is avoided, and the assembly efficiency and quality are improved.

[0025] 3、The present application has simple structure, is easy to assemble, disassemble and adjust, has high structural strength, is suitable for ground laying construction procedures of high-speed railway bridges and the like, and is beneficial to control the construction cost and labor cost. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a perspective view of the telescopic assembly type high-speed railway bridge of the present application;

[0027] Figure 2 is Figure 1 an enlarged schematic view of A in FIG.

[0028] Figure 3 is Figure 1 an enlarged schematic view of B in FIG.

[0029] Figure 4 is a sectional view of the present application of the assembled high-speed railway bridge.

[0030] In the figure, 1, frame plate; 11, built-in movable slot; 12, built-in limiting slot; 13, built-in limiting sliding block; 14, built-in movable plate; 15, built-in rack; 16, abutting block; 2, grinding belt; 3, left side plate; 31, embedded clamping groove; 32, hollow locking block; 33, built-in locking slot; 34, built-in threaded slot; 35, rotating screw rod; 4, right side plate; 41, embedded clamping plate; 42, limiting hollow block; 43, built-in locking plate; 44, abutting circular groove; 45, limiting baffle; 46, external rack; 47, side hollow frame; 48, rotating sleeve shaft; 5, connecting rotating sleeve; 51, rotating gear disc; 6, abutting member. DETAILED DESCRIPTION

[0031] The application will be further described below in conjunction with the drawings and specific embodiments.

[0032] Please refer to the accompanying Figure 1 to the accompanying Figure 4 , an assembled high-speed railway bridge, comprising frame plates 1, built-in movable plates 14, left side plates 3, right side plates 4, abutting members 6, length adjusting assemblies, left side assembly assemblies and right side assembly assemblies; the left side plates 3 are arranged at the left side top edges of the frame plates 1, and the right side plates 4 are arranged at the right side top edges of the frame plates 1; a plurality of groups of left side assembly assemblies are arranged on the left side plates 3 at intervals, a plurality of groups of right side assembly assemblies are arranged on the right side plates 4 at intervals, and the plurality of groups of left side assembly assemblies are in one-to-one correspondence with the plurality of groups of right side assembly assemblies and are detachably connected, so that the two frame plates 1 are assembled transversely along the width direction; a pair of built-in movable plates 14 are slidably embedded in the frame plates 1 through the length adjusting assemblies, two abutting members 6 are arranged at one end of one built-in movable plate 14 and the other end of the other built-in movable plate 14, and the two abutting members 6 can extend to the outside of the frame plates 1, so that when the two frame plates 1 are assembled longitudally along the length direction, the abutting member 6 of one frame plate 1 can abut on the other frame plate 1.

[0033] The matching connection of the left assembly component and the right assembly component facilitates the transverse assembly of the frame plate 1, and is convenient and fast to disassemble and assemble. Meanwhile, the length adjusting component drives the built-in movable plate 14 to slide along the longitudinal direction, drives the abutting member 6 to slide and abut on the adjacent frame plate 1, and facilitates the distance control during the longitudinal assembly of the frame plate 1. The adjustment of the transverse and longitudinal assembly makes all the frame plates 1 assembled in the same horizontal plane, and adapts to the machining error and assembly error, thereby ensuring the assembly quality of the frame plate 1, laying the reinforced frame bottom plate on the high-speed railway bridge, and performing the concrete pouring and other construction operations on the reinforced frame bottom plate to form the high-speed railway bridge.

[0034] The left side plate 3 is formed with an embedded clamping groove 31, and the right side plate 4 is formed with an embedded clamping plate 41, which can be matched and embedded in the embedded clamping groove 31, so that the left side plate 3 and the right side plate 4 are inserted and connected, thereby assembling the adjacent two frame plates 1 along the width direction.

[0035] Through the embedding of the embedded clamping groove 31 and the embedded clamping plate 41, the left side plate 3 and the right side plate 4 can be preliminarily positioned and connected, thereby preliminarily positioning and connecting the two frame plates 1, and realizing the transverse assembly of the frame plate 1.

[0036] The left side plate 3 and the right side plate 4 are as long as the frame plate 1, the length of the embedded clamping groove 31 is slightly smaller than the length of the left side plate 3, and the length of the embedded clamping plate 41 is slightly smaller than the length of the right side plate 4, thereby ensuring the appearance of the transverse assembly to be neat and beautiful.

[0037] Each group of the left assembly component includes a hollow locking block 32 and a rotating screw 35, and each group of the right assembly component includes a limiting hollow block 42, a built-in locking plate 43 and a limiting baffle 45. The hollow locking block 32 is fixedly arranged on the left side plate 3, and the hollow locking block 32 is formed with a built-in locking groove 33, which penetrates the hollow locking block 32 along the width direction of the frame plate 1. The top of the hollow locking block 32 is formed with a built-in threaded groove 34, the rotating screw 35 is threadedly screwed on the hollow locking block 32 through the built-in threaded groove 34 and is inserted into the built-in locking groove 33. The limiting hollow block 42 is arranged on the right side plate 4, and the limiting hollow block 42 is formed with a sliding groove (not shown in the figure), which penetrates the limiting hollow block 42 along the width direction of the frame plate 1. One end of the built-in locking plate 43 is formed with an abutting circular groove 44, and the limiting baffle 45 is arranged at the other end of the built-in locking plate 43. The built-in locking plate 43 is slidably penetrated through the limiting hollow block 42 through a sliding mechanism, so that one end of the built-in locking plate 43 is inserted into the hollow locking block 32, and the rotating screw 35 is inserted into the abutting circular groove 44.

[0038] When the two frame plates 1 are assembled horizontally, the built-in locking plate 43 is inserted into the limiting hollow block 42 and the built-in locking groove 33, so that the abutting circular groove 44 is located in the built-in locking groove 33 and just below the rotating screw 35, the rotating screw 35 is manually rotated, and the rotating screw 35 is screwed into and penetrates in the abutting circular groove 44 under the limitation of the built-in threaded groove 34, so as to lock the left assembly component and the right assembly component, preventing the two frame plates 1 from being separated. The limiting baffle 45 plays a limiting role, preventing the built-in locking plate 43 from being separated from the limiting hollow block 42.

[0039] The sliding mechanism comprises a side hollow frame 47 and a rotating shaft 48; the side hollow frame 47 is arranged on the limiting hollow block 42, the side hollow frame 47 is a hollow structure, and the hollow cavity of the side hollow frame 47 is communicated with the sliding groove; one end of the rotating sleeve shaft 48 is inserted into the hollow cavity of the side hollow frame 47 and is connected with a gear, and the edge of the built-in locking plate 43 is formed with an external rack 46, so that the gear is meshed and connected with the external rack 46.

[0040] The rotating sleeve shaft 48 and the sliding groove can be connected by a rotating bearing, and when the rotating sleeve shaft 48 is manually rotated, the gear can be synchronously rotated, and the built-in locking plate 43 can be horizontally slid along the sliding groove under the meshing transmission of the gear and the external rack 46. The meshing of the gear and the external rack 46 facilitates the distance adjustment between the two horizontally adjacent frame plates 1, and the adjustment precision and controllability are high.

[0041] The frame plate 1 is formed with a built-in movable groove 11, and the built-in movable groove 11 penetrates through both end faces of the frame plate 1; the length of the built-in movable groove 11 is slightly larger than the length of the built-in movable plate 14, and a pair of built-in movable plates 14 are slidably embedded in the built-in movable groove 11 through a length adjustment assembly, and the abutting piece 6 can extend to the outside of the built-in movable groove 11.

[0042] Preferably, the size of the built-in movable groove 11 can be adjusted according to the size of the pair of built-in movable plates 14, so as to meet the length adjustment of the abutting piece 6 extending to the outside of the frame plate 1, or the abutting piece 6 can be moved to the inside of the frame plate 1.

[0043] The length adjustment assembly comprises a connecting rotating sleeve 5, a rotating gear disc 51 and an internal rack 15; the connecting rotating sleeve 5 is arranged on the left side face of the frame plate and below the left side plate 3, one end of the connecting rotating sleeve 5 is inserted into the built-in movable groove 11 and coaxially fixedly connected with the rotating gear disc 51; the opposite faces of the pair of built-in movable plates 14 are each provided with an internal rack 15, and the rotating gear disc 51 is arranged between the pair of built-in movable plates 14 and meshed and connected between the pair of internal racks 15.

[0044] The connecting sleeve 5 and the frame plate 1 are connected through a rotating bearing, and the rotating gear plate 51 is synchronously rotated when the connecting sleeve 5 is manually rotated, and a pair of the built-in movable plates 14 are horizontally moved in opposite directions under the meshing transmission of the built-in rack 15 and the rotating gear plate 51, so that the length adjustment of the frame plate 1 and the distance adjustment between the frame plate 1 and the longitudinally adjacent frame plate 1 are realized.

[0045] The top and bottom of the built-in movable slot 11 are formed with built-in limiting grooves 12, and one end of the two built-in limiting sliding blocks 13 is respectively slidably embedded in the two built-in limiting grooves 12, and the other end of the two built-in limiting sliding blocks 13 is respectively fixedly connected with one side of the pair of built-in movable plates 14.

[0046] Through the sliding of the built-in limiting sliding block 13 along the built-in limiting groove 12, the limiting and guiding effects are achieved, and the movement stability and controllability of the pair of built-in movable plates 14 are ensured.

[0047] The two ends of the frame plate 1 are formed with abutting blocks 16, and the end of the built-in movable plate 14 without the abutting member 6 can be in contact with the inner wall of the abutting block 16, and the abutting member 6 of the adjacent frame plate 1 can be in contact with the outer wall of the abutting block 16.

[0048] The abutting block 16 is used for abutting with the abutting member 6, so as to limit the distance between the two longitudinally adjacent frame plates 1, and the amplitude of the built-in movable plate 14 moving back into the built-in movable slot 11 is limited.

[0049] The length of the abutting member 6 is consistent with the width of the built-in movable plate 14, the cross section of the abutting member 6 is in a wedge structure, and the tip of the wedge structure can abut on the abutting block 16. The tip area of the abutting member 6 is small, and a large pressure can be generated on the abutting block 16, so that the abutting stability between the two longitudinally adjacent frame plates 1 is ensured, and reliable assembly is ensured.

[0050] A plurality of sanding belts 2 are formed on the top surface of the frame plate 1 at intervals, and the sanding belts 2 can increase the friction and improve the connection strength with the concrete surface.

[0051] Please refer to the accompanying drawings Figure 1 to the accompanying drawings Figure 4 A method for assembling a telescopic assembled high-speed railway bridge, comprising the following steps:

[0052] Step 1: After the installation of the first frame plate 1 is completed, the second frame plate 1 is hoisted to the side of the first frame plate 1, the left plate 3 and the right plate 4 are inserted and connected, and the preliminary positioning and fixing of the transverse assembly of the two frame plates 1 are completed.

[0053] Specifically, the embedded card plate 41 is matched and embedded into the embedded card slot 31, so as to improve the positioning accuracy and convenience of the splicing of the left side plate 3 and the right side plate 4, and ensure the reliability of the splicing of the left side plate 3 and the right side plate 4, and the left side plate 3 and the right side plate 4 are not easy to fall off.

[0054] Step 2: connecting the left assembly component and the right assembly component to transversely assemble and connect the two frame plates 1.

[0055] The step 2 comprises the following sub-steps:

[0056] Step 2.1: rotating the sleeve shaft 48 to rotate and drive the gear to rotate synchronously, so that the built-in locking plate 43 is moved and inserted into the built-in locking slot 33 under the meshing transmission of the external rack 46 and the gear.

[0057] The meshing of the external rack 46 and the gear ensures the stability of the built-in locking plate 43 in the built-in locking slot 33, and the built-in locking plate 43 is not easy to slip.

[0058] Step 2.2: rotating the screw 35 to rotate in the built-in threaded slot 34 and downwardly insert into the built-in locking slot 33 and the abutting circular groove 44.

[0059] The rotating screw 35 vertically penetrates through the abutting circular groove 44, so as to ensure the connection reliability of the left assembly component and the right assembly component, and the left assembly component and the right assembly component are not easy to separate.

[0060] Step 3: repeating the step 2 to complete the transverse assembly of the first row of frame plates 1. The number of the transverse assembly of each row of frame plates 1 can be determined according to the design size of the high-speed railway bridge.

[0061] Step 4: hoisting the second row of first frame plates 1 to one end of the first row of first frame plates 1, adjusting the extension position of the built-in movable plate 14 and the abutting piece 6 through the length adjusting component, and longitudinally assembling the second row of first frame plates 1 and the first row of first frame plates 1.

[0062] The step 4 comprises the following sub-steps:

[0063] Step 4.1: rotating the connecting sleeve 5 to rotate and drive the rotating gear disc 51 to rotate synchronously, so that a pair of built-in movable plates 14 slide in the built-in movable slot 11. The anti-slip structure can be arranged on the connecting sleeve 5, so as to facilitate the easy and labor-saving manual rotation of the connecting sleeve 5.

[0064] Step 4.2: the abutting piece 6 slides synchronously with the built-in movable plate 14, so that the abutting piece 6 of the second row of first frame plates 1 abuts on the abutting block 16 of the first row of first frame plates 1, and the spacing control reliability of the two longitudinally adjacent frame plates 1 is ensured.

[0065] Step 5: repeating the steps 2 to 4 to complete the transverse assembly of the second row of frame plates 1 and the longitudinal assembly of the second row of frame plates 1 and the first row of frame plates 1.

[0066] Step 6: repeat step 5 until the assembly of all frame plates 1 is completed to form the high-speed railway bridge structure.

[0067] In the assembly process, the longitudinal assembly of the frame plate 1 can also be performed first, and then the transverse assembly of the frame plate 1 is performed. The longitudinal assembly and the transverse assembly are the same as the above assembly method, only the assembly sequence is different, and the construction personnel can adjust according to the actual construction condition, which will not be repeated here.

[0068] The working principle of the present application is:

[0069] When multiple groups of frame plates 1 are longitudinally assembled, the connecting rotating sleeve 5 is directly rotated, and the connecting rotating sleeve 5 drives the rotating gear disc 51 to rotate. Since the rotating gear disc 51 is in meshing connection with the meshing rack 15, through the limiting action of the built-in limiting slide block 13 and the built-in limiting groove 12, the two ends of the built-in movable plate 14 are moved on both sides of the built-in movable groove 11. Through the abutting limiting action of the oblique abutting member 6, the longitudinal assembly of the built-in movable plate 14 is completed, which can effectively change the overall length of the entire frame plate structure, so that the overall length of the entire frame plate structure can be stretched and contracted, and better use effect is achieved.

[0070] When multiple groups of frame plates 1 are transversely assembled, the embedded clamping plate 41 is embedded into the embedded clamping groove 31 in advance to complete the preliminary fixing action; the rotating sleeve shaft 48 is rotated to drive the gear to rotate, and the gear is in meshing connection with the external rack 46, so that the built-in locking plate 43 is moved in the limited hollow block 42, and the built-in locking plate 43 is completely moved into the built-in locking groove 33. Then the rotating screw 35 is directly rotated to move the rotating screw 35 in the hollow locking block, so that the rotating screw 35 is moved into the abutting circular groove 44 to complete the connection and locking of the frame plate 1, realize the transverse assembly, facilitate the construction, and quickly improve the disassembly and assembly efficiency, and achieve better disassembly and assembly effect.

[0071] The above is only a preferred embodiment of the present application, and is not used to limit the protection scope of the application, therefore, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A telescopic assembled high-speed railway bridge, characterized in that: The utility model relates to a frame board (1), built -in movable board (14), left side board (3), right side board (4), resist component (6), length adjustment subassembly, left side assembly subassembly and right side assembly subassembly include, left side board (3) sets up at the left side top edge of frame board (1), right side board (4) sets up at the right side top edge of frame board (1), several groups left side assembly subassembly is spaced apart respectively on left side board (3), several groups right side assembly subassembly is spaced apart respectively on right side board (4), several groups left side assembly subassembly respectively with several groups right side assembly subassembly one to one and detachable connection, make two frame boards (1) along the width direction transverse assembly, a pair of built -in movable board (14) is slidably embedded in frame board (1) through length adjustment subassembly, is provided with one resist component (6) at one end of one built -in movable board (14) and the other end of another built -in movable board (14), and two resist components (6) can extend to the outside of frame board (1), when two frame boards (1) along the length direction longitudinal assembly, the resist component (6) of one frame board (1) can abut on another frame board (1), the left side board (3) is formed with embedded card slot (31) on, right side board (4) is formed with embedded card board (41), and embedded card board (41) can be embedded in embedded card slot (31), and left side board (3) is inserted with right side board (4), thereby making two adjacent frame boards (1) along the width direction assembly, every group left side assembly subassembly includes hollow locking block (32) and rotating screw (35), every group right side assembly subassembly includes spacing hollow block (42), built -in locking plate (43) and spacing baffle (45), hollow locking block (32) is fixedly set up on left side board (3), and built -in locking groove (33) is formed in hollow locking block (32), and built -in locking groove (33) penetrates hollow locking block (32) along the width direction of frame board (1), the top of hollow locking block (32) is formed with built -in thread groove (34), and rotating screw (35) is screwed on hollow locking block (32) through built -in thread groove (34) and is inserted into built -in locking groove (33), spacing hollow block (42) is set up on right side board (4), and spacing hollow block (42) is formed with sliding slot, and sliding slot penetrates spacing hollow block (42) along the width direction of frame board (1), one end of built -in locking plate (43) is formed with resist round groove (44), and spacing baffle (45) is set up at the other end of built -in locking plate (43), built -in locking plate (43) is slidably penetrated spacing hollow block (42) through sliding mechanism, one end of built -in locking plate (43) is inserted into hollow locking block (32), and rotating screw (35) is inserted in resist round groove (44), the sliding mechanism includes side hollow frame (47) and rotating sleeve shaft (48), side hollow frame (47) is set up on spacing hollow block (42), and side hollow frame (47) is hollow structure and the hollow cavity of side hollow frame (47) is communicated with sliding slot,One end of the rotating sleeve shaft (48) is inserted into the hollow cavity of the side hollow frame (47) and is connected with a gear, and the edge of the built-in locking plate (43) is formed with an external rack (46), so that the gear is connected with the external rack (46) in meshing connection; the frame plate (1) is formed with a built-in movable slot (11) penetrating through the two end faces of the frame plate (1); the length of the built-in movable slot (11) is greater than the length of the built-in movable plate (14), and a pair of built-in movable plates (14) are slidably embedded in the built-in movable slot (11) through a length adjusting assembly, and the abutting piece (6) can extend to the outside of the built-in movable slot (11); the length adjusting assembly comprises a connecting rotating sleeve (5), a rotating gear disc (51) and a built-in rack (15); the connecting rotating sleeve (5) is arranged on the left side face of the frame plate and is located below the left side plate (3), one end of the connecting rotating sleeve (5) is inserted into the built-in movable slot (11) in penetration and is coaxially fixedly connected with the rotating gear disc (51); the opposite faces of the pair of built-in movable plates (14) are each provided with a built-in rack (15), the rotating gear disc (51) is arranged between the pair of built-in movable plates (14) and is connected in meshing connection between the pair of built-in racks (15); the top and bottom of the built-in movable slot (11) are each formed with a built-in limiting slot (12), one face of the pair of built-in movable plates (14) arranged oppositely is fixedly connected with a built-in limiting sliding block (13), one end of one of the built-in limiting sliding blocks (13) away from the corresponding built-in movable plate (14) is slidably embedded in the built-in limiting slot (12) at the top, and one end of the other built-in limiting sliding block (13) away from the corresponding built-in movable plate (14) is slidably embedded in the built-in limiting slot (12) at the bottom; the two ends of the frame plate (1) are formed with abutting blocks (16), one end of the built-in movable plate (14) not provided with the abutting piece (6) can be in contact with the inner wall of the abutting block (16), and the abutting piece (6) of the adjacent frame plate (1) can be in contact with the outer wall of the abutting block (16); a plurality of ground strips (2) are formed on the top face of the frame plate (1) in intervals.

2. A method of assembling the telescopic assembled high-speed railway bridge according to claim 1, characterized in that: The method comprises the following steps: Step 1: after the installation of the first frame plate (1) is completed, the second frame plate (1) is hoisted to the side of the first frame plate (1), the left side plate (3) is inserted with the right side plate (4), and the preliminary positioning and fixing of the transverse assembly of the two frame plates (1) is completed; Step 2: the left assembly component and the right assembly component are connected, and the two frame plates (1) are transversely assembled and connected; Step 3: step 2 is repeated, and the transverse assembly of the first row of frame plates (1) is completed; Step 4: the second row of first frame plates (1) is hoisted to one end of the first row of first frame plates (1), the extension positions of the built-in movable plate (14) and the abutting member (6) are adjusted through the length adjusting component, and the second row of first frame plates (1) is longitudinally assembled with the first row of first frame plates (1); Step 5: steps 2 to 4 are repeated, and the transverse assembly of the second row of frame plates (1) and the longitudinal assembly of the second row of frame plates (1) and the first row of frame plates (1) are completed; Step 6: step 5 is repeated until the assembly of all frame plates (1) is completed, and the high-speed railway bridge structure is formed.

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