A cavity roof combined support in bridge construction and a construction process thereof

Abstract

The application discloses a cavity roof combined support in bridge construction and a construction technology thereof, and relates to the technical field of bridge construction, in particular to a cavity roof combined support in bridge construction, which comprises a formwork and an assembling frame, and the outer side of the assembling frame is provided with the formwork. The assembling frame comprises a supporting column, a supporting foot, a clamping plate, a supporting block, a fixing arm, a rotating arm, an adjusting arm, an arm rod, a slot, a plug rod, a first spring, a push rod, a connecting disc, a connecting hole, a plug column, a gear, a locking frame and an extension arm. The supporting column top and the clamping plate are connected through threads, the clamping plate side and the supporting block are slidably connected, the supporting column bottom and the supporting foot are connected through threads, and the supporting column and the two groups of fixing arms are fixedly connected. The application adjusts the included angle between the adjusting arm and the rotating arm, so that the starting support of the two groups of supporting columns is located on different horizontal planes, and the support surface with height difference can be adapted, and the application range is improved.

Description

Technical Field

[0001] This invention belongs to the field of bridge casting support technology, and specifically relates to a combined support for the cavity top plate in bridge construction and its construction process. Background Technology

[0002] The top panel of the central cavity is the top surface of the beam slab and is the main working part that bears positive and negative bending moments. In addition to meeting the requirements of the transverse bending moment of the bridge deck, it also needs to provide a sufficiently large bearing area in reinforced concrete bridges; in prestressed reinforced concrete bridges, it needs to meet the requirements for arranging longitudinal prestressed steel strands; during the pouring of the top panel, formwork needs to be erected to support it and pour it into the required shape and thickness, and the formwork needs to be supported by a combination of brackets.

[0003] In existing technologies: 1) Fastener-type supports are used for construction, but these supports use fixed steel pipes and fasteners. The length of the steel pipes is fixed, making it difficult to adjust the vertical support height and adapt to support surfaces with height differences, thus limiting their applicability; 2) During repeated use, the steel pipes may bend and deform, leading to installation difficulties and slowing down the construction process when connecting them with fasteners; 3) After the side panels are assembled, uneven pressure distribution can cause excessive pressure at some joints, resulting in grout leakage. Existing fastener supports cannot adjust the support position, requiring additional support devices to provide support for the side panels, which is time-consuming and labor-intensive. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a combined support for the cavity top plate in bridge construction and its construction process, which allows for the rapid installation of templates through the assembly frame.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A combined support for the cavity top plate in bridge construction includes a template and an assembly frame, wherein the template is provided on the outside of the assembly frame;

[0007] The assembly frame includes a support column, support feet, a clamping plate, a support block, a fixed arm, a rotating arm, an adjusting arm, an arm rod, a slot, a plug rod, a first spring, a push rod, a connecting plate, a connecting hole, a plug rod, a gear, a locking frame, and an extension arm. The top of the support column and the clamping plate are threaded together, one side of the clamping plate is slidably connected to the support block, and the bottom of the support column and the support feet are threaded together. The support column is fixedly connected to two sets of fixed arms, the other end of the fixed arm is movably connected to one end of the rotating arm, the other end of the rotating arm is movably connected to one end of the adjusting arm, and the other end of the adjusting arm is fixedly connected to the arm rod. The arm rod has several through holes, and another set of arm rods is located on one side of the arm rod. The two sets of arm rods are connected by bolts. The two sets of support columns are then connected by a through hole for fixation. An insert rod is located on the inner side of the adjusting arm, with a first spring on one side and a push rod fixedly connected to the other side. The insert rod, push rod, and adjusting arm are slidably connected. A slot is located at the end of the rotating arm, corresponding to one end of the insert rod. The outer side of the support column is slidably connected to two sets of connecting plates. Several connecting holes are provided on the connecting plates, with insert rods inside each hole. The inner side of the connecting plate is movably connected to a gear. A locking frame is located on one side of the gear, slidably connected to the connecting plate. A protrusion is located on one side of the locking frame, corresponding to the gear. Several toothed grooves are located on the support column, corresponding to the gear. Both ends of the extension arm are connected to the connecting plate via insert rods.

[0008] Preferably, the insertion post is narrow at one end and wide at the other, with the narrow end connected to the limiting bolt via a thread; the narrow end facilitates insertion, and the limiting bolt prevents the insertion post from falling off.

[0009] Preferably, the extension arm includes a U-shaped block, a first extension rod, a second extension rod, a third extension rod, a side stop, a center stop, a side slide rail, a connecting slider, a fixing frame, a moving column, a protruding strip, a second spring, a locking block, and a locking groove. One end of the first extension rod is fixedly connected to a pair of U-shaped blocks, and the U-shaped blocks are connected to the connecting plate through a pin. The other end of the first extension rod is slidably connected to one end of the second extension rod. The middle of the end of the first extension rod is fixedly connected to the center stop. Both sides of the end of the second extension rod are fixedly connected to two sets of side stops. The other end of the second extension rod is fixedly connected to the third extension rod. Both sides of the third extension rod are connected to the side slide rail. The system is fixedly connected. One side of the third extension rod is provided with another set of third extension rods. The two sets of third extension rods are slidably connected by a side slide rail and a connecting slider. One side of the second extension rod is provided with a slide cavity corresponding to the third extension rod. A set of connecting sliders is provided with a fixed frame. A movable column is provided in the middle of the fixed frame. The movable column is provided with protrusions on both sides. The protrusions are provided with notches. The movable column and the protrusions are slidably connected to the fixed frame. One end of the movable column is fixedly connected to the locking block. A second spring is provided on the outside of the movable column. The second spring is located between the fixed frame and the locking block. The locking block and the connecting slider are slidably connected. The side slide rail is provided with several locking grooves, which correspond to the locking block.

[0010] Preferably, there are two sets of sliding directions between the second extension rod and the first extension rod on the extension arm, and the angle between the two sets of sliding directions is 90 degrees.

[0011] Preferably, the side slide rail is L-shaped, and together with another set of side slide rails, it forms a T-shape and is slidably connected to the connecting slider.

[0012] Preferably, the template includes a top panel, locking holes, a fixing plate, a sliding column, a connecting frame, a first rotating rod, a second rotating rod, a flipping rod, a flipping block, a guide plate, a flipping plate, a flipping column, a locking plate, and side plates. The top panel has several through holes and several locking holes. One side of the top panel is fixedly connected to several fixing plates. The fixing plates are slidably connected to the sliding columns. One end of the sliding column is fixedly connected to the connecting frame. The connecting frame is movably connected to one end of the first rotating rod. The other end of the first rotating rod is movably connected to the flipping rod. One end of the flipping rod is fixedly connected to the flipping block. Guide plates are provided on both sides of the flipping block. The guide plates are fixedly connected to the top panel. One end of the flipping rod and the second rotating rod are movably connected. The other end of the second rotating rod is movably connected to the flipping plate. The flipping plate is fixedly connected to the flipping column. Locking plates are provided on both sides of the flipping column. The locking plates have notches. The flipping column and the locking plates correspond to the locking holes.

[0013] Preferably, the inner side of the side plate is provided with a side slide, which is slidably connected to both ends of the horizontal slide rod and both ends of the vertical slide rod. Both the horizontal and vertical slide rods are slidably connected to the sliding seat. One side of the sliding seat is fixedly connected to the connecting buckle. The connecting buckle is connected by a plug and a U-shaped block. One side of the side plate is provided with an indirect plate. The indirect plate is connected to the top panel by bolts. The indirect plate is connected to the side plate by a plug-in plate. The side plates are connected to each other by plug-in plates.

[0014] The construction process of a combined support structure for the cavity top plate in bridge construction is as follows:

[0015] Step 1) Measure the markings: Measure the location to be poured according to the construction drawings and the on-site construction conditions, determine the range of the support frame, and mark the support points;

[0016] Step 2) Assemble the support frame: Place the support columns in the assembly frame at the support points on the base plate, and adjust the spacing between the support columns by adjusting the arm to make the support columns correspond to the support points. Place the U-shaped block on the connecting plate, and connect and fix the U-shaped block and the connecting plate by inserting the column. Then, adjust the relative position between the third extension rods according to the connection distance between the connecting plates, thereby adjusting the connection length of the extension arm. The first extension rod and the second extension rod can slide against each other.

[0017] Step 3) Side panel installation: When installing the side panel, the side panel and the inter-panel are assembled by plugging in the blocks, and connected to the extension arm and the connecting plate by the connecting buckle. The connecting buckle and the sliding seat can slide on the horizontal slide bar and the vertical slide bar, and the vertical slide bar and the horizontal slide bar can slide on the side slide frame, so that the position of the connecting buckle can be adjusted by sliding, which is convenient for connecting to the extension arm. The connecting buckle is connected and fixed to the U-shaped block by the plug.

[0018] Step 4) Top panel installation: After the side panels are installed, assemble the top panel by quickly locking the top panels together using the flip-up column and locking plate, and then install the assembled top panel on the side panels.

[0019] Step 5) Spraying release agent: Spray release agent onto the surfaces of the top panel and side panels;

[0020] Step 6) Pouring the top panel of the cavity: Tie the reinforcing bars on the surface of the formwork. After tying, pour concrete between the side panels. After the space between the side panels is filled, pour concrete on the surface of the top panel until the specified thickness is reached.

[0021] The advantages of this invention compared to existing technologies are as follows:

[0022] 1) The template is provided with vertical support through support columns, clamps, support feet, and support blocks. The height of the support can be adjusted by rotating the support feet and clamps. At the same time, the push rod slides in the adjusting arm and drives the insert rod to squeeze the first spring and push it out of the slot, so that the adjusting arm and the rotating arm can rotate relative to each other. This allows the angle between the adjusting arm and the rotating arm to be adjusted, so that the two sets of support columns are initially supported on different horizontal planes, thus adapting to support surfaces with height differences and improving the applicability.

[0023] 2) The second extension rod can slide between the first extension rod and the second extension rod, so that the axes between the second extension rod and the first extension rod are in different positions. This allows the second extension rod and the first extension rod to be quickly connected even when the support column is deformed and bent, thereby achieving rapid installation and improving construction speed.

[0024] 3) The sliding seat can slide on the horizontal and vertical sliding rods, and the vertical and horizontal sliding rods can slide on the side slide. When connected to the extension arm via the connecting buckle, the relative position of the sliding seat and the connecting buckle on the side plate can be adjusted over a wide range. When adjusting the assembly frame, the connecting port and the sliding seat connected to the extension rod can be directly slid and adjusted. When grout leakage occurs on the side plate, the sliding seat can be moved towards the grout leakage point to increase the support strength at the grout leakage point, thereby solving the grout leakage caused by insufficient support. Attached Figure Description

[0025] Appendix Figure 1 This is a schematic diagram of a combined support structure for the cavity top plate in bridge construction according to the present invention;

[0026] Appendix Figure 2 This is a schematic diagram of the template structure in a combined support for the cavity top plate in bridge construction according to the present invention;

[0027] Appendix Figure 3 It is attached Figure 2 Enlarged view at point E in the middle;

[0028] Appendix Figure 4 This is a schematic diagram of the top panel structure in a combined support structure for the cavity top plate during bridge construction according to the present invention;

[0029] Appendix Figure 5 It is attached Figure 4 Enlarged view of point A in the middle;

[0030] Appendix Figure 6 This is a schematic diagram of the assembly frame structure in the cavity top plate combined support of the present invention for bridge construction;

[0031] Appendix Figure 7 This is a schematic diagram of the support column structure in a combined bracket for the cavity top plate during bridge construction according to the present invention;

[0032] Appendix Figure 8 It is attached Figure 7 Enlarged view at point B in the middle;

[0033] Appendix Figure 9 This is a schematic diagram of the connecting plate structure in a combined support for the cavity top plate during bridge construction according to the present invention;

[0034] Appendix Figure 10 This is a schematic diagram of the extension arm structure in a combined support for the cavity top plate during bridge construction according to the present invention;

[0035] Appendix Figure 11 It is attached Figure 10 Enlarged view at point C;

[0036] Appendix Figure 12 It is attached Figure 10 Enlarged view at point D;

[0037] In the diagram: 1. Template; 111. Top panel; 12. Locking hole; 13. Fixing plate; 14. Sliding column; 15. Connecting frame; 16. First rotating rod; 17. Second rotating rod; 18. Flipping rod; 19. Flipping block; 101. Guide plate; 102. Flipping plate; 103. Flipping column; 104. Locking plate; 121. Side plate; 21. Horizontal sliding rod; 22. Vertical sliding rod; 23. Sliding seat; 24. Connecting buckle; 25. Side slide; 26. Indirect connection plate; 27. Insertion plate; 3. Assembly frame; 31. Support column; 32. Support foot; 33. Clamping plate; 34. Support block; 35. Fixing arm; 36. Rotating arm 37. Adjusting arm; 38. Arm rod; 39. Slot; 301. Insert rod; 302. First spring; 303. Push rod; 304. Connecting plate; 305. Connecting hole; 3051. Insert post; 3052. Limit bolt; 306. Gear; 307. Locking bracket; 308. Extension arm; 81. U-shaped block; 82. First extension rod; 83. Second extension rod; 84. Third extension rod; 85. Side stop block; 86. Center stop block; 87. Side slide rail; 88. Connecting slider; 89. Fixing bracket; 801. Moving column; 802. Protruding strip; 803. Second spring; 804. Locking block; 805. Locking groove. Detailed Implementation

[0038] To facilitate understanding by those skilled in the art, the following is a detailed explanation in conjunction with the appendix. Figure 1-12 The technical solution of the present invention will be further described in detail below.

[0039] A combined support for the cavity top plate in bridge construction includes a template 1 and an assembly frame 3, wherein the template 1 is provided on the outer side of the assembly frame 3;

[0040] The assembly frame 3 includes a support column 31, a support foot 32, a clamping plate 33, a support block 34, a fixed arm 35, a rotating arm 36, an adjusting arm 37, an arm rod 38, a slot 39, an insertion rod 301, a first spring 302, a push rod 303, a connecting plate 304, a connecting hole 305, an insertion post 3051, a gear 306, a locking frame 307, and an extension arm 308. The top of the support column 31 is threadedly connected to the clamping plate 33, one side of the clamping plate 33 is slidably connected to the support block 34, and the bottom of the support column 31 is threadedly connected to the support foot 32. The support column 31 is fixedly connected to two sets of fixed arms 35, the other end of the fixed arm 35 is movably connected to one end of the rotating arm 36, the other end of the rotating arm 36 is movably connected to one end of the adjusting arm 37, and the other end of the adjusting arm 37 is fixedly connected to the arm rod 38. The arm rod 38 has several through holes, and another set of arm rods 38 is located on one side of the arm rod 38. The two sets of arm rods 38 are connected by bolts passing through the through holes. The two sets of support columns 31 are then connected by fixing the support column 31. An insert rod 301 is provided on the inner side of the adjusting arm 37. A first spring 302 is provided on one side of the insert rod 301, and the other side of the insert rod 301 is fixedly connected to a push rod 303. The insert rod 301 and push rod 303 are slidably connected to the adjusting arm 37. A slot 39 is provided at the end of the rotating arm 36, and the slot 39 corresponds to one end of the insert rod 301. The outer side of the support column 31 is slidably connected to two sets of connecting plates 304. The connecting plates 304 are provided with… A plurality of connecting holes 305 are provided, and inserts 3051 are provided in the connecting holes 305. The inner side of the connecting plate 304 is movably connected to the gear 306. A locking frame 307 is provided on one side of the gear 306. The locking frame 307 and the connecting plate 304 are slidably connected. A protrusion is provided on one side of the locking frame 307, which corresponds to the gear 306. A plurality of tooth grooves are provided on the support column 31, which correspond to the gear 306. The two ends of the extension arm 308 are connected to the connecting plate 304 through inserts 3051.

[0041] The template 1 is provided with vertical support through support columns 31, clamping plates 33, support feet 32, and support blocks 34. The height of the support can be adjusted by rotating the support feet 32 ​​and clamping plates 33. The two sets of support columns 31 are connected by fixed arms 35, rotating arms 36, adjusting arms 37, and arm rods 38. The spacing between the support columns 31 is adjusted by bolts inserted into the through holes of the arm rods 38. The push rod 303 slides in the adjusting arm 37, which drives the insert rod 301 to compress the first spring 302 and push it out of the slot 39, so that the adjusting arm 37 and the rotating arm 36 can rotate relative to each other, thereby adjusting the included angle between the adjusting arm 37 and the rotating arm 36, so that the two sets of support columns 31 can adapt to a different support height. After adjusting the ground, release the push rod 303. The first spring 302 drives the insertion rod 301 back into the slot 39 and locks it in place. The extension arm 308 connects the two sets of support columns 31 connected by the fixed arm 35, rotating arm 36, adjusting arm 37, and arm 38 to the other two sets of support columns 31. The extension arm 308 docks with the connecting plate 304 and is fixed by the insertion rod 3051. At the same time, the locking frame 307 is raised away from the gear 306, allowing the connecting plate 304 to slide on the support column 31. The gear 306 then rotates on the tooth groove, adjusting the height of the connecting plate 304, which facilitates the connection between the extension arm 308 and the connecting plate 304. The locking frame 307 is then lowered, and the gear 306 is locked by the protrusion.

[0042] The insertion post 3051 is narrow at one end and wide at the other. The narrow end is connected to the limiting bolt 3052 by a thread. The narrow end facilitates insertion, and the limiting bolt 3052 prevents the insertion post 3051 from falling off.

[0043] The extension arm 308 includes a U-shaped block 81, a first extension rod 82, a second extension rod 83, a third extension rod 84, a side stop block 85, a center stop block 86, a side slide rail 87, a connecting slider 88, a fixing frame 89, a moving column 801, a protruding strip 802, a second spring 803, a locking block 804, and a locking groove 805. One end of the first extension rod 82 is fixedly connected to a pair of U-shaped blocks 81, and the U-shaped blocks 81 are connected to the connecting plate 304 through a pin 3051. The other end of the first extension rod 82 is slidably connected to one end of the second extension rod 83. The middle of the end of the first extension rod 82 is fixedly connected to the center stop block 86. Both sides of the end of the second extension rod 83 are fixedly connected to two sets of side stop blocks 85. The other end of the second extension rod 83 is fixedly connected to the third extension rod 84. Both sides of the third extension rod 84 are fixedly connected to the side slide rail 87. Another set of third extension rods 84 is provided on one side of the third extension rod 84. The two sets of third extension rods 84 are slidably connected by the side slide rail 87 and the connecting slider 88. The second extension rod 83 is provided on one side of the slide cavity corresponding to the third extension rod 84. A set of connecting sliders 88 is provided with a fixed frame 89. A movable column 801 is provided in the middle of the fixed frame 89. A protrusion 802 is provided on both sides of the movable column 801. A notch is provided on the protrusion 802. The movable column 801 and the protrusion 802 are slidably connected to the fixed frame 89. One end of the movable column 801 is fixedly connected to the locking block 804. A second spring 803 is provided on the outside of the movable column 801. The second spring 803 is provided between the fixed frame 89 and the locking block 804. The locking block 804 is slidably connected to the connecting slider 88. A number of locking grooves 805 are provided on the side slide rail 87. The locking grooves 805 correspond to the locking blocks 804.

[0044] The loop block 81 is connected to the connecting plate 304 via the insert post 3051. Pulling the moving post 801 and the protrusion 802 to slide on the fixed frame 89 simultaneously drives the locking block 804 to move and compress the second spring 803, moving it away from the locking groove 805. When the notch on the protrusion 802 reaches the fixed plate 13, the moving post 801 is rotated, thereby driving the protrusion 802 to rotate. The protrusion 802 then rotates and locks onto the fixed plate 13, allowing the third extension rods 84 to slide relative to each other on the connecting slider 88. Adjusting the distance between the second extension rods 83, after adjustment, rotating the moving post 801 resets the protrusion 802. The second spring 803 pushes the locking block 804 back into the locking groove 805, thereby restricting the sliding of the side slide rail 87 and the third extension rod 84 again. The second extension rod 83 can slide between the first extension rod 82 and is restricted by the center stop 86 and the side stop 85, which can increase the movement range of the extension arm 308 connected to the connecting plate 304 and improve the docking tolerance error.

[0045] There are two sets of sliding directions between the second extension rod 83 and the first extension rod 82 on the extension arm 308, and the angle between the two sets of sliding directions is 90 degrees.

[0046] The side slide rail 87 is L-shaped, and together with another set of side slide rails 87, it forms a T-shape and is slidably connected to the connecting slider 88.

[0047] The template 1 includes a top panel 111, locking holes 12, fixing plates 13, sliding columns 14, connecting frames 15, a first rotating rod 16, a second rotating rod 17, a flipping rod 18, a flipping block 19, a guide plate 101, a flipping plate 102, a flipping column 103, a locking plate 104, and a side plate 121. The top panel 111 has several through holes and several locking holes 12. One side of the top panel 111 is fixedly connected to several fixing plates 13. The fixing plates 13 are slidably connected to the sliding columns 14. One end of the sliding column 14 is fixedly connected to the connecting frame 15. The connecting frame 15 and the first rotating rod 16, second rotating rod 17, flipping rod 18, flipping block 19, guide plate 101, flipping plate 102, flipping column 103, locking plate 104, and side plate 121. One end of the rotating rod 16 is movably connected, and the other end of the first rotating rod 16 is movably connected to the flipping rod 18. One end of the flipping rod 18 is fixedly connected to the flipping block 19. Guide plates 101 are provided on both sides of the flipping block 19. The guide plates 101 are fixedly connected to the top panel 111. One end of the flipping rod 18 and the second rotating rod 17 is movably connected, and the other end of the second rotating rod 17 is movably connected to the flipping plate 102. The flipping plate 102 is fixedly connected to the flipping column 103. Locking plates 104 are provided on both sides of the flipping column 103. The locking plates 104 have notches. The flipping column 103 and the locking plates 104 correspond to the locking holes 12.

[0048] After the top panels 111 are joined together, the flipping rod 18 is pushed to move. The flipping rod 18 drives the flipping block 19 to slide between the guide plates 101, thereby driving the first rotating rod 16 and the second rotating rod 17 to rotate. The first rotating rod 16 and the second rotating rod 17 push the connecting frame 15 to move, the sliding column 14 to move on the fixed plate 13, and the flipping plate 102 to move. The flipping column 103 and the locking plate 104 slide in the locking hole 12. The flipping column 103 and the locking plate 104 then pass through the locking hole 12 on another set of top panels 111, so that the notches on the two sets of top panels 111 correspond to the notches on the locking plate 104. The flipping rod 18 is flipped, driving the first rotating rod 16, the second rotating rod 17, the flipping plate 102, the flipping column 103, and the locking plate 104 to rotate, thereby locking the two sets of top panels 111 together. After the top panels 111 are joined together, they overlap on the side plate 121.

[0049] The inner side of the side plate 121 is provided with a side slide 25, which is slidably connected to both ends of the horizontal slide rod 21 and both ends of the vertical slide rod 22. The horizontal slide rod 21 and the vertical slide rod 22 are slidably connected to the sliding seat 23. One side of the sliding seat 23 is fixedly connected to the connecting buckle 24. The connecting buckle 24 is connected to the U-shaped block 81 through the insert post 3051. One side of the side plate 121 is provided with an indirect plate 26, which is connected to the top panel 111 by bolts. The indirect plate 26 is connected to the side plate 121 through the plug-in plate 27. The side plates 121 are connected to each other through the plug-in plate 27.

[0050] The side plates 121 are overlapped by the plug plate 27, and the connecting buckle 24 is connected to the connecting plate 304 through the extension arm 308 and fixed by the plug post 3051. The sliding seat 23 can slide on the horizontal sliding rod 21 and the vertical sliding rod 22. At the same time, the vertical sliding rod 22 and the horizontal sliding rod 21 can slide on the side slide 25. When connected to the extension arm 308 through the connecting buckle 24, the relative position of the sliding seat 23 and the connecting buckle 24 on the side plate 121 can be adjusted over a wide range.

[0051] The construction process of a combined support structure for the cavity top plate in bridge construction is as follows:

[0052] Step 1) Measure the markings: Measure the location to be poured according to the construction drawings and the on-site construction conditions, determine the range of the support frame, and mark the support points;

[0053] Step 2) Assemble the support frame: Place the support columns in the assembly frame at the support points on the base plate, and adjust the spacing between the support columns by adjusting the arm to make the support columns correspond to the support points. Place the U-shaped block on the connecting plate, and connect and fix the U-shaped block and the connecting plate by inserting the column. Then, adjust the relative position between the third extension rods according to the connection distance between the connecting plates, thereby adjusting the connection length of the extension arm. The first extension rod and the second extension rod can slide against each other.

[0054] Step 3) Side panel installation: When installing the side panel, the side panel and the inter-panel are assembled by plugging in the blocks, and connected to the extension arm and the connecting plate by the connecting buckle. The connecting buckle and the sliding seat can slide on the horizontal slide bar and the vertical slide bar, and the vertical slide bar and the horizontal slide bar can slide on the side slide frame, so that the position of the connecting buckle can be adjusted by sliding, which is convenient for connecting to the extension arm. The connecting buckle is connected and fixed to the U-shaped block by the plug.

[0055] Step 4) Top panel installation: After the side panels are installed, assemble the top panel by quickly locking the top panels together using the flip-up column and locking plate, and then install the assembled top panel on the side panels.

[0056] Step 5) Spraying release agent: Spray release agent onto the surfaces of the top panel and side panels;

[0057] Step 6) Pouring the top panel of the cavity: Tie the reinforcing bars on the surface of the formwork. After tying, pour concrete between the side panels. After the space between the side panels is filled, pour concrete on the surface of the top panel until the specified thickness is reached.

[0058] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, they should all fall within the protection scope of the present invention.

Claims

1. A combined support structure for the cavity top plate in bridge construction, comprising a template and an assembly frame, characterized in that, The assembly frame is equipped with a template on its outer side; The assembly frame includes a support column, support feet, a clamping plate, a support block, a fixed arm, a rotating arm, an adjusting arm, an arm rod, a slot, a plug rod, a first spring, a push rod, a connecting plate, a connecting hole, a plug rod, a gear, a locking frame, and an extension arm. The top of the support column and the clamping plate are threaded together, one side of the clamping plate is slidably connected to the support block, and the bottom of the support column and the support feet are threaded together. The support column is fixedly connected to two sets of fixed arms, the other end of the fixed arm is movably connected to one end of the rotating arm, the other end of the rotating arm is movably connected to one end of the adjusting arm, and the other end of the adjusting arm is fixedly connected to the arm rod. The arm rod has several through holes, and another set of arm rods is located on one side of the arm rod. The two sets of arm rods are connected by bolts. The two sets of support columns are then connected by a through hole for fixation. An insert rod is located on the inner side of the adjusting arm, with a first spring on one side and a push rod fixedly connected to the other side. The insert rod, push rod, and adjusting arm are slidably connected. A slot is located at the end of the rotating arm, corresponding to one end of the insert rod. The outer side of the support column is slidably connected to two sets of connecting plates. Several connecting holes are provided on the connecting plates, with insert rods inside each hole. The inner side of the connecting plate is movably connected to a gear. A locking frame is located on one side of the gear, slidably connected to the connecting plate. A protrusion is located on one side of the locking frame, corresponding to the gear. Several toothed grooves are located on the support column, corresponding to the gear. Both ends of the extension arm are connected to the connecting plate via insert rods.

2. The combined support for the cavity top plate in bridge construction according to claim 1, characterized in that... The insertion post is narrow at one end and wide at the other. The narrow end is connected to the limiting bolt by a thread. The narrow end facilitates insertion, and the limiting bolt prevents the insertion post from falling off.

3. A combined support structure for the cavity top plate during bridge construction according to claim 1 or 2, characterized in that... The extension arm includes a U-shaped block, a first extension rod, a second extension rod, a third extension rod, a side stop block, a center stop block, a side slide rail, a connecting slider, a fixing frame, a moving column, a protruding strip, a second spring, a locking block, and a locking groove. One end of the first extension rod is fixedly connected to a pair of U-shaped blocks, which are connected to the connecting plate via inserts. The other end of the first extension rod is slidably connected to one end of the second extension rod. The middle of the end of the first extension rod is fixedly connected to the center stop block. Both sides of the end of the second extension rod are fixedly connected to two sets of side stop blocks. The other end of the second extension rod is fixedly connected to the third extension rod. Both sides of the third extension rod are fixed to the side slide rail. The connection includes a third extension rod on one side, with another set of third extension rods slidably connected via a side slide rail and a connecting slider. A sliding cavity corresponding to the third extension rod is provided on one side of the second extension rod. A fixed frame is provided on one set of connecting sliders, with a movable column in the middle of the fixed frame. Protrusions are provided on both sides of the movable column, with notches on the protrusions. The movable column and protrusions are slidably connected to the fixed frame. One end of the movable column is fixedly connected to a locking block. A second spring is provided on the outside of the movable column, positioned between the fixed frame and the locking block. The locking block and the connecting slider are slidably connected. Several locking grooves are provided on the side slide rail, corresponding to the locking block.

4. A combined support for the cavity top plate in bridge construction according to claim 3, characterized in that... There are two sets of sliding directions between the second extension rod and the first extension rod on the extension arm, and the angle between the two sets of sliding directions is 90 degrees.

5. A combined support for the cavity top plate in bridge construction according to claim 3, characterized in that... The side slide rail is L-shaped, and together with another set of side slide rails, it forms a T-shape and slides in connection with the connecting slider.

6. A combined support for the cavity top plate in bridge construction according to claim 1, characterized in that... The template includes a top panel, locking holes, a fixing plate, a sliding column, a connecting frame, a first rotating rod, a second rotating rod, a flipping rod, a flipping block, a guide plate, a flipping plate, a flipping column, a locking plate, and side plates. The top panel has several through holes and locking holes. One side of the top panel is fixedly connected to several fixing plates. The fixing plates are slidably connected to the sliding columns. One end of the sliding column is fixedly connected to the connecting frame. The connecting frame is movably connected to one end of the first rotating rod. The other end of the first rotating rod is movably connected to the flipping rod. One end of the flipping rod is fixedly connected to the flipping block. Guide plates are provided on both sides of the flipping block. The guide plates are fixedly connected to the top panel. One end of the flipping rod and the second rotating rod are movably connected. The other end of the second rotating rod is movably connected to the flipping plate. The flipping plate is fixedly connected to the flipping column. Locking plates are provided on both sides of the flipping column. The locking plates have notches. The flipping column and the locking plates correspond to the locking holes.

7. A combined support for the cavity top plate in bridge construction according to claim 6, characterized in that... The inner side of the side plate is provided with a side slide bracket, which is slidably connected to both ends of the horizontal slide rod and both ends of the vertical slide rod. Both the horizontal and vertical slide rods are slidably connected to the sliding seat. One side of the sliding seat is fixedly connected to the connecting buckle. The connecting buckle is connected by a plug and a U-shaped block. One side of the side plate is provided with an indirect plate. The indirect plate is connected to the top panel by bolts. The indirect plate is connected to the side plate by a plug-in plate. The side plates are connected to each other by plug-in plates.

8. A construction process for a combined support structure for the cavity top plate in bridge construction, characterized in that... The bridge construction cavity top plate combined support according to any one of claims 1-7 further includes the following construction steps for the cavity top plate combined support: Step 1) Measure the markings: Measure the location to be poured according to the construction drawings and the on-site construction conditions, determine the range of the support frame, and mark the support points; Step 2) Assemble the support frame: Place the support columns in the assembly frame at the support points on the base plate, and adjust the spacing between the support columns by adjusting the arm to make the support columns correspond to the support points. Place the U-shaped block on the connecting plate, and connect and fix the U-shaped block and the connecting plate by inserting the column. Then, adjust the relative position between the third extension rods according to the connection distance between the connecting plates, thereby adjusting the connection length of the extension arm. The first extension rod and the second extension rod can slide against each other. Step 3) Side panel installation: When installing the side panel, the side panel and the inter-panel are assembled by plugging in the blocks, and connected to the extension arm and the connecting plate by the connecting buckle. The connecting buckle and the sliding seat can slide on the horizontal slide bar and the vertical slide bar, and the vertical slide bar and the horizontal slide bar can slide on the side slide frame, so that the position of the connecting buckle can be adjusted by sliding, which is convenient for connecting to the extension arm. The connecting buckle is connected and fixed to the U-shaped block by the plug. Step 4) Top panel installation: After the side panels are installed, assemble the top panel by quickly locking the top panels together using the flip-up column and locking plate, and then install the assembled top panel on the side panels. Step 5) Spraying release agent: Spray release agent onto the surfaces of the top panel and side panels; Step 6) Pouring the top panel of the cavity: Tie the reinforcing bars on the surface of the formwork. After tying, pour concrete between the side panels. After the space between the side panels is filled, pour concrete on the surface of the top panel until the specified thickness is reached.

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