Long-span beam early-dismantling independent supporting device and construction method

Abstract

The invention discloses a long-span beam early-dismantling independent supporting device and a construction method, and relates to the technical field of building construction. The long-span beam early-dismantling independent supporting device comprises a supporting rod assembly and a connecting assembly; the supporting rod assembly comprises an upper rod body, a lower rod body, a limiting ring and a transverse insertion rod. An inserting hole is formed in the upper rod body, strip-shaped holes are formed in the left side and the right side of an inner cavity in the top of the lower rod body respectively, and the limiting rings are arranged on the peripheries of the strip-shaped holes and are adjustable in height. The supporting rod assembly can achieve coarse adjustment and fine adjustment of the height so as to adapt to supporting of large-span beams with different heights, use is convenient and fast, and compatibility is high. After the third mold bottom plate and the fourth mold bottom plate are dismantled, the first mold bottom plate and the second mold bottom plate can be transversely pulled away, so that the forming mold is dismantled on the premise that the supporting rod assembly is kept in a supporting state, and the construction safety is improved; and the bearing plate body is used for preventing concrete from being bonded with the forming mold bottom plate, so that the first mold bottom plate and the second mold bottom plate are smoothly drawn out.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to an independent support device for early dismantling of a large-span beam and a construction method. Background Art

[0002] The structural beams are mainly cast with reinforced concrete structure.

[0003] When the span of a structural beam exceeds 8 meters, it is called a long-span beam.

[0004] In traditional technology, when casting large-span beams, the forming mold and the corresponding supporting structure of the forming mold must be removed only after the concrete hardening strength reaches 100%, resulting in a slow turnover of the forming mold and the supporting structure, further increasing the number of forming molds and supporting structures required for the project. Summary of the invention

[0005] In order to overcome the problem of "slow turnover of forming molds for large-span beams" existing in the above-mentioned background technology, the present invention provides an independent support device for early dismantling of large-span beams and a construction method, wherein the independent support device for early dismantling of large-span beams is used to support the large-span beams, so that the forming molds can be dismantled early and turned over to the next construction site.

[0006] The technical solution adopted by the present invention to solve the above technical problems is: A large-span beam early dismantling independent support device, comprising a plurality of support rod assemblies and a plurality of connecting assemblies for connecting adjacent support rod assemblies; the support rod assemblies comprise an upper rod body, a lower rod body, a limiting ring and a cross-insertion rod; a plurality of plug-in holes are provided at the bottom of the upper rod body, and the bottom of the upper rod body is plugged into the top inner cavity of the lower rod body; strip holes are respectively provided on the left and right sides of the top inner cavity of the lower rod body, and the strip holes are through holes; the strip holes can be selectively aligned with and connected to the plug-in holes, and the cross-insertion rod is plugged into the strip hole and the selected plug-in hole; an external thread is provided on the top of the side wall of the lower rod body, and an internal thread adapted to and screwed to the external thread is provided on the inner wall of the limiting ring, and the limiting ring is placed on the periphery of the strip hole and is height-adjustable.

[0007] As a further optimization solution of the present invention, the length direction of the strip-shaped hole is arranged along the axial direction of the lower rod body.

[0008] As a further optimization scheme of the present invention, the connecting assembly includes a connecting ring, a connecting rod, a first bolt and a second bolt; the connecting ring is installed on the side wall of the support rod assembly, and both ends of the connecting rod are respectively connected to adjacent connecting rings.

[0009] As a further optimization scheme of the present invention, the connecting ring is provided with a first connecting hole; slots matching the thickness of the connecting ring are respectively provided at both ends of the connecting rod, and second connecting holes are respectively provided on the top and bottom surfaces of the slots; the connecting ring can be inserted into the slots and connect the first connecting hole and the second connecting hole; the stud of the first bolt can be inserted into the first connecting hole and the second connecting hole; a nut is screwed on the surface of the stud, and the nut can be crimped with the bottom surface of the connecting rod.

[0010] As a further optimization solution of the present invention, both the first connection hole and the second connection hole are through holes.

[0011] As a further optimization scheme of the present invention, there are three connecting components, wherein the connecting ring of one of the connecting components is sleeved and fixed on the side wall of the upper rod body, and the connecting rings of the other two connecting components are sleeved and fixed on the side wall of the lower rod body.

[0012] As a further optimization scheme of the present invention, a cylindrical extension portion is provided at the inner edge of the connecting ring, and a third connecting hole is opened on the side wall of the extension portion; the stud of the second bolt can penetrate the third connecting hole and be fixedly connected to the upper rod body or the lower rod body.

[0013] As a further optimization solution of the present invention, the upper rod body side wall and the lower rod body side wall are respectively provided with mounting screw holes adapted for the second bolt.

[0014] As a further optimization scheme of the present invention, the top end of the upper rod body is vertically fixedly connected to a top support plate, and the bottom end of the lower rod body is vertically fixed to a bottom support plate; the first pad is crimped onto the bottom surface of the bottom support plate, and the second pad is crimped onto the top surface of the top support plate.

[0015] A construction method for an independent support device for early dismantling of a large-span beam, comprising the following steps: S1, erecting a forming mold for the large-span beam, installing the second pad at a reserved hole position provided in the forming mold, so that the top surface of the second pad is flush with the bottom surface of a cavity of the forming mold; S2, laying a receiving plate at the bottom surface of the cavity, and then pouring and vibrating concrete into the cavity; S3, curing the concrete, and installing the support rod assembly during the curing process; S4, dismantling the forming mold when the concrete hardening reaches more than 80%; S5, dismantling the independent support device for early dismantling of the large-span beam when the concrete hardening reaches 100%.

[0016] The installation steps of the support rod assembly in step S3 include: S31, using the connecting assembly to connect the adjacent lower rod bodies; S32, selectively aligning the strip hole with the plug-in hole, so that the current distance between the top support plate and the bottom support plate is adapted to the height of the second pad from the ground, thereby realizing coarse adjustment of the support rod assembly; S33, fixing the first pad on the bottom surface directly below the second pad by expansion bolts; S34, placing the support rod assembly upright, so that the bottom support plate is pressed onto the second pad, and then inserting the cross-insertion rod into the strip hole and the selected plug-in hole; then rotating the limit ring so that the limit ring pushes the cross-insertion rod upward until the top support plate presses the second pad, thereby realizing fine adjustment of the support rod assembly; S35, using the connecting assembly to connect the adjacent upper rod bodies.

[0017] In summary, the present invention is beneficial in that: (1) The present invention has a simple structure and reliable functions. The support rod assembly is used to longitudinally support the long-span beam, and the connecting assembly is used to connect adjacent support rod assemblies together to improve the overall structural strength of the present invention and prevent the failure of the support function caused by the accidental tipping of a single support rod assembly. The support rod assembly includes an upper rod body, a lower rod body, a limit ring and a horizontal insertion rod to achieve coarse and fine adjustment of the height, thereby adapting to the support of long-span beams of different heights. It is easy to use and has strong compatibility.

[0018] (2) The second pad can be removably installed in the reserved hole at the junction of the first mold bottom plate and the second mold bottom plate. After the user removes the third mold bottom plate and the fourth mold bottom plate, the first mold bottom plate and the second mold bottom plate can be pulled out horizontally, thereby realizing the removal of the molding mold under the premise that the support rod assembly remains in a supporting state, thereby improving construction safety, reducing operation steps, and improving work efficiency.

[0019] (3) The receiving plate at the bottom of the cavity is used to separate the concrete from the first mold bottom plate and from the second mold bottom plate, thereby ensuring that the hardened large-span beam will not adhere to the first mold bottom plate and the second mold bottom plate, so that the first mold bottom plate and the second mold bottom plate can be smoothly pulled out, which is convenient to operate and reduces the knocking force required for removing the molding mold, reduces the deformation of the molding mold caused by knocking, and further improves the service life of the molding mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present application is further described below with reference to the accompanying drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the support rod assembly structure; Figure 3 Schematic diagram of the upper rod structure; Figure 4 It is a schematic diagram of the connection structure between the upper rod body and the lower rod body; Figure 5 It is a top view schematic diagram of the connection component structure; Figure 6 It is a top view schematic diagram of the connecting ring structure; Figure 7 It is a schematic side view of the vertical section structure of the connecting rod; Figure 8 A schematic diagram of the installation position of the connection components; Fig. 9 It is a schematic side view of the vertical section structure of the extension part; Fig.10 is a schematic diagram of the top view of the structure of the first pad; Fig.11 This is a schematic diagram of the structure of the second pad viewed from above; Fig.12 It is a schematic diagram of the side view structure of the upward fin; Fig.13 This is a schematic diagram of the vertical section structure of the forming mold at the reserved hole position.

[0021] Description of reference numerals: In the figure, 1. Support rod assembly; 11. Upper rod body; 1101. Top support plate; 111. Plug-in hole; 12. Lower rod body; 1201. Bottom support plate; 121. Strip hole; 13. Limiting ring; 131. Upper fin; 14. Horizontal insertion rod; 2. Connecting assembly; 21. Connecting ring; 211. First connecting hole; 212. Extending portion; 2121. Third connecting hole; 22. Connecting rod; 221. Slot; 222. Second connecting hole; 3. first pad; 31. first limiting groove; 32. first positioning ring; 4. second pad; 41. second limiting groove; 42. second positioning ring; 5. Molding mold; 501. Reserved hole; 51. First mold bottom plate; 52. Second mold bottom plate; 53. Third mold bottom plate; 54. Fourth mold bottom plate; 6. Receive the board. DETAILED DESCRIPTION

[0022] Based on the above structural features of the present application, the implementation methods of the present application are further described: Reference Figure 1 This embodiment provides an independent support device for early dismantling of a large-span beam, comprising a plurality of support rod assemblies 1 and a plurality of connecting assemblies 2 for connecting adjacent support rod assemblies 1. The support rod assemblies 1 can support the large-span beam, so that the forming mold 5 can be dismantled and turned over early, thereby increasing the turnover speed of the forming mold 5, improving the construction flexibility, and reducing the number of molds required for construction and the cost.

[0023] Reference Figure 2 to Figure 4 The support rod assembly 1 includes an upper rod body 11, a lower rod body 12, a limiting ring 13 and a horizontal insertion rod 14; a plurality of plug-in holes 111 are provided at the bottom of the upper rod body 11, and the bottom of the upper rod body 11 is inserted in the top inner cavity of the lower rod body 12; strip holes 121 are provided on the left and right sides of the top inner cavity of the lower rod body 12, respectively, and the strip holes 121 are through holes; the strip holes 121 can be selectively aligned and connected to the plug-in holes 111, and the horizontal insertion rod 14 is inserted in the strip holes 121 and the selected plug-in holes 111. When the strip holes 121 are aligned with different plug-in holes 111, the top end of the upper rod body 11 and the bottom end of the lower rod body 12 have different distances, so that the support rod assembly 1 has different heights as a whole, so as to adapt to the large-span beams with different heights at the construction site, thereby realizing the rough adjustment of the support rod assembly 1.

[0024] Reference Figure 2 to Figure 4 The top of the side wall of the lower rod body 12 is provided with an external thread, the top of the external thread is higher than the top of the strip hole 121, and the bottom is lower than the bottom of the strip hole 121. The inner wall of the limit ring 13 is provided with an internal thread that is adapted and screwed to the external thread. The limit ring 13 is placed on the outer periphery of the strip hole 121 and has an adjustable height. When the internal thread rotates, it can move along the axial direction of the lower rod body 12, thereby pushing the cross rod 14 and the upper rod body 11 to move up and down, so as to be used for fine adjustment of the support rod assembly 1.

[0025] Reference Figure 4 The length direction of the strip hole 121 is arranged along the axial direction of the lower rod body 12, so that when the support rod assembly 1 is placed upright, the strip hole 121 is in a vertical state.

[0026] Reference Figure 1 and Figure 5 , the connection assembly 2 includes a connection ring 21, a connection rod 22, a first bolt and a second bolt; the connection ring 21 is installed on the side wall of the support rod assembly 1, and the two ends of the connection rod 22 are respectively connected to the adjacent connection rings 21. When the number of support rod assemblies 1 is 3 and they are arranged in an equilateral triangle shape, a single connection assembly 2 includes three connection rings 21 and three connection rods 22, and the three connection rings 21 are respectively sleeved on the side walls of the support rod assembly 1, and the adjacent connection rings 21 are connected by the connection rod 22. The connection assembly 2 is used to connect several support rod assemblies 1 into a whole, thereby improving the overall bearing capacity of the present invention, avoiding accidental tipping of a single connection assembly 2, and improving the transportation convenience of the connection assembly 2.

[0027] Reference Figure 5 to Figure 7, the connecting ring 21 is provided with a first connecting hole 211, and a single connecting ring 21 is provided with two first connecting holes 211; when the number of the support rod assemblies 1 is 3 and they are arranged in an equilateral triangle shape, the angle R between the two first connecting holes 211 on the same connecting ring 21 is 60 degrees, so that one connecting ring 21 can connect the left and right connecting rods 22. Both ends of the connecting rod 22 are respectively provided with slots 221 adapted to the thickness of the connecting ring 21, so that the outer edge of the connecting ring 21 can be inserted into the slots 221; the top and bottom surfaces of the slots 221 are respectively provided with second connecting holes 222. The left and right slots 221 on the same connecting rod 22 are arranged parallel to each other, the left and right second connecting holes 222 on the same connecting rod 22 are arranged parallel to each other, and the slot 221 on the same connecting rod 22 is arranged perpendicular to the second connecting hole 222.

[0028] Reference Figure 1 , Figure 5 to Figure 7 The connecting ring 21 can be inserted into the slot 221 and align and connect the first connecting hole 211 and the second connecting hole 222; the stud of the first bolt can be inserted into the first connecting hole 211 and the second connecting hole 222; a nut is screwed on the surface of the stud, and the nut can be crimped with the bottom surface of the connecting rod 22, thereby realizing the fixed installation of the connecting component 2.

[0029] The first connection hole 211 and the second connection hole 222 are both through holes, so as to facilitate the insertion of the first bolt.

[0030] Reference Figure 8 There are three connecting components 2, wherein the connecting ring 21 of one connecting component 2 is sleeved and fixed on the side wall of the upper rod body 11, thereby realizing the mutual fixation between the upper rod bodies 11; the connecting rings 21 of the other two connecting components 2 are sleeved and fixed on the side walls of the lower rod bodies 12, thereby realizing the mutual fixation between the lower rod bodies 12 and ensuring the parallelism between the lower rod bodies 12; so as to improve the structural stability of the present invention.

[0031] Reference Fig. 9 A cylindrical extension part 212 is provided at the inner edge of the connecting ring 21, and the extension part 212 is fixedly connected to the connecting ring 21 in an integrated manner. A third connecting hole 2121 is provided on the side wall of the extension part 212; the stud of the second bolt can penetrate the third connecting hole 2121 and be fixedly connected to the upper rod body 11 or the lower rod body 12. The side wall of the upper rod body 11 and the side wall of the lower rod body 12 respectively provide mounting screw holes adapted to the second bolt, and the second bolt can be tightened in the mounting screw holes, thereby achieving fixed connection between the connecting ring 21 and the upper rod body 11, and between the connecting ring 21 and the lower rod body 12.

[0032] Reference Figure 1 , Figure 10-11, the top end of the upper rod body 11 is vertically fixedly connected with a top supporting plate 1101, and the bottom end of the lower rod body 12 is vertically fixedly connected with a bottom supporting plate 1201; the first pad 3 is pressed on the bottom surface of the bottom supporting plate 1201, and the second pad 4 is pressed on the top surface of the top supporting plate 1101. The top surface of the first pad 3 is provided with a first limiting groove 31, and the cross section of the first limiting groove 31 is adapted to the bottom supporting plate 1201, so that the bottom supporting plate 1201 can be clamped in the first limiting groove 31. The number of the first limiting grooves 31 is adapted to the number of the support rod assemblies 1, and the spacing between adjacent first limiting grooves 31 is adapted to the length of the connecting rod 22, so that the support rod assemblies 1 connected by the connecting assembly 2 can correspond to and clamp all the bottom supporting plates 1201 in the first limiting grooves 31 respectively. The bottom surface of the second pad 4 is provided with a second limiting groove 41, and the cross section of the second limiting groove 41 is adapted to the top supporting plate 1101, so that the top supporting plate 1101 can be clamped in the second limiting groove 41. The number of the second limiting grooves 41 is adapted to the number of the support rod assemblies 1, and the spacing between adjacent second limiting grooves 41 is adapted to the length of the connecting rod 22, so that the support rod assembly 1 connected by the connecting assembly 2 can correspond to and clamp all the top supporting plates 1101 in the second limiting grooves 41. The first pad 3 is used to prevent the bottom end of the support rod assembly 1 from slipping, and the second pad 4 is used to prevent the top end of the support rod assembly 1 from slipping; at the same time, the first pad 3 is used to expand the crimping area between the bottom supporting plate 1201 and the ground, thereby preventing the support rod assembly 1 from sinking.

[0033] Reference Figure 1 , Figure 10-11 The top surface of the first pad 3 is fixedly connected with a first positioning ring 32 around the first limiting groove 31 (for example, through an integrated fixed connection or through a bolted fixed connection), and the bottom surface of the second pad 4 is fixedly connected with a second positioning ring 42 around the second limiting groove 41 (for example, through an integrated fixed connection or through a bolted fixed connection); when the support rod assembly 1 is accidentally impacted and causes the bottom support plate 1201 to escape from the first limiting groove 31 and / or the top support plate 1101 to escape from the second limiting groove 41, the inner wall of the first positioning ring 32 can apply an inward limiting force to the bottom support plate 1201, and the second positioning ring 42 can apply an inward limiting force to the top support plate 1101, so that the support rod assembly 1 is obliquely clamped between the first pad 3 and the second pad 4 without causing the support rod assembly 1 to be completely disengaged from the first pad 3 and the second pad 4, thereby avoiding the occurrence of safety incidents.

[0034] Reference Fig.12, the length of the cross-insertion rod 14 is greater than the diameter of the lower rod body 12, so that the cross-insertion rod 14 can extend its two ends from the inner cavity of the lower rod body 12 after being inserted into the strip hole 121. The two ends of the upper surface of the limiting ring 13 are respectively fixedly connected with the upward fins 131 through an integrated manner. The two upward fins 131 are respectively provided with first through holes adapted to the cross-insertion rod 14 at the side wall positions. The two ends of the cross-insertion rod 14 are respectively inserted into the two first through holes and extend from the upward fins 131; the two ends of the cross-insertion rod 14 are respectively provided with threads and fixed nuts are respectively installed. The user rotates the fixing nut to press the fixing nut onto the outer wall of the upward fin 131, thereby achieving a fixed connection of the cross-insertion rod 14 to prevent the cross-insertion rod 14 from falling out of the strip hole 121 during construction, thereby improving construction safety.

[0035] The bottom end of the outer wall of the limiting ring 13 is provided with friction grooves to facilitate manual rotation by the user; the top end of the outer wall of the limiting ring 13 is provided with a clamping groove with a hexagonal radial cross-section, and the user can use a wrench to clamp into the clamping groove position and rotate the limiting ring 13.

[0036] A construction method for an early dismantling independent support device for a large-span beam, comprising the following steps: S1, erecting a forming mold 5 for a large-span beam, installing the second pad 4 at the position of the reserved hole 501 opened in the forming mold 5, so that the top surface of the second pad 4 is flush with the bottom surface of the cavity of the forming mold 5; S2, laying a receiving plate 6 at the bottom of the cavity, then laying a steel mesh in the cavity and pouring concrete into the cavity; vibrating the concrete; S3, curing the concrete, and installing the support rod assembly 1 during the curing process; S4, when the concrete hardening reaches more than 80%, the forming mold 5 and the corresponding supporting structure are removed; S5. When the concrete hardening reaches 100%, remove the large-span beams and independent support devices as soon as possible.

[0037] The installation steps of the support rod assembly 1 in step S3 include: S31, connecting the adjacent lower rod bodies 12 using the connecting assembly 2; S32, selectively aligning the strip hole 121 with the plug hole 111, so that the current distance between the top supporting plate 1101 and the bottom supporting plate 1201 is adapted to the height of the second pad 4 from the ground, and realizing the coarse adjustment of the support rod assembly 1; S33, fixing the first pad 3 on the bottom surface directly below the second pad 4 by means of expansion bolts; S34, the support rod assembly 1 is placed upright, the bottom support plate 1201 is pressed against the second pad 4, and then the cross-insertion rod 14 is inserted into the strip hole 121 and the selected plug-in hole 111; then the limiting ring 13 is rotated so that the limiting ring 13 pushes the cross-insertion rod 14 upward until the top support plate 1101 presses the second pad 4, so as to achieve fine adjustment of the support rod assembly 1; S35 , using the connecting assembly 2 to connect the adjacent upper rod bodies 11 .

[0038] Reference Fig.13 The bottom plate of the molding die 5 includes a first die bottom plate 51, a second die bottom plate 52, a third die bottom plate 53 and a fourth die bottom plate 54. The first die bottom plate 51 and the second die bottom plate 52 are located in the middle, and the third die bottom plate 53 and the fourth die bottom plate 54 are located on both sides. The reserved hole 501 is opened at the connection position of the first die bottom plate 51 and the second die bottom plate 52. The second pad 4 is detachably installed in the reserved hole 501 by bolts. The bottom end of the side wall of the second pad 4 is fixedly connected with a U-shaped fin for installing bolts (for example, by an integrated fixed connection). The second pad 4 can be adapted to block the reserved hole 501. When removing the mold, first remove the supporting structure of the first mold bottom plate 51, the supporting structure of the first mold bottom plate 51, the supporting structure of the third mold bottom plate 53 and the supporting structure of the fourth mold bottom plate 54, then remove the third mold bottom plate 53 and the fourth mold bottom plate 54, and then remove the bolts on the second pad 4 and pull out the first mold bottom plate 51 and the second mold bottom plate 52 laterally from both sides respectively; the receiving plate body 6 is used to separate the concrete from the first mold bottom plate 51, and the concrete from the second mold bottom plate 52, so as to ensure that the hardened large-span beam will not adhere to the first mold bottom plate 51 and the second mold bottom plate 52, so that the first mold bottom plate 51 and the second mold bottom plate 52 can be smoothly pulled out, the operation is convenient, and the knocking force required for removing the molding mold 5 is reduced, the deformation of the molding mold 5 caused by knocking is reduced, and the service life of the molding mold 5 is further improved.

[0039] A plurality of independent support devices for early dismantling of large-span beams are provided and are evenly arranged in a matrix shape below the bottom plate of the forming mold 5, thereby achieving stable support.

[0040] The long-span beam early disassembly independent support device is assembled in the factory by fixing the connecting ring 21 on the upper rod body 11 and the lower rod body 12, and the connecting rod 22 and the connecting ring 21 are disassembled and assembled during on-site construction, thereby realizing convenient construction. The user can move the connecting rod 22 laterally so that the edge of the connecting ring 21 can be inserted into the slot 221 or pulled out from the slot 221, thereby realizing convenient loading and unloading.

[0041] The receiving plate body 6 is detachably connected to the second pad 4 by a third bolt, and a sleeve is fixedly connected to the bottom of the steel mesh of the large-span beam. The third bolt can penetrate the second pad 4 and the receiving plate body 6 and be screwed to the sleeve. After the receiving plate body 6 is laid in the cavity, the third bolt is tightened; after the construction is completed, the third bolt, the independent support device of the large-span beam and the receiving plate body 6 are removed.

[0042] The present invention has a simple structure and reliable functions. The support rod assembly 1 is used to longitudinally support the long-span beam, and the connecting assembly 2 is used to connect adjacent support rod assemblies 1 together to improve the overall structural strength of the present invention and prevent the single support rod assembly 1 from accidentally tipping over and causing the support function to fail. The support rod assembly 1 includes an upper rod body 11, a lower rod body 12, a limit ring 13 and a horizontal insertion rod 14 to achieve coarse and fine adjustment of the height, thereby adapting to the support of long-span beams of different heights. It is easy to use and has strong compatibility.

[0043] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "up", "down", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0044] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] To sum up, for those skilled in the art, according to the guidance of the present invention, without departing from the principles and spirit of the present invention, the changes, modifications, substitutions and deformations made to the present invention still fall within the protection scope of the present invention.

Claims

1. An independent support device for early dismantling of a large-span beam, characterized in that: It comprises a plurality of support rod assemblies (1) and a plurality of connecting assemblies (2) for connecting adjacent support rod assemblies (1); The support rod assembly (1) comprises an upper rod body (11), a lower rod body (12), a stop ring (13) and a transverse insertion rod (14); a plurality of insertion holes (111) are provided at the bottom of the upper rod body (11), and the bottom of the upper rod body (11) is inserted into the top inner cavity of the lower rod body (12); strip holes (121) are provided on the left and right sides of the top inner cavity of the lower rod body (12), respectively, and the strip holes (121) are through holes; the strip holes (121) can be selectively aligned with and connected to the insertion holes (111), and the transverse insertion rod (14) is inserted into the strip holes (121) and the selected insertion holes (111); an external thread is provided at the top of the side wall of the lower rod body (12), and an internal thread adapted to and screwed to the external thread is provided on the inner wall of the stop ring (13), and the stop ring (13) is arranged on the outer periphery of the strip hole (121) and is height-adjustable.

2. The independent support device for early dismantling of a large-span beam according to claim 1 is characterized in that: The length direction of the strip-shaped hole (121) is arranged along the axial direction of the lower rod body (12).

3. The independent support device for early dismantling of a large-span beam according to claim 2 is characterized in that: The connecting assembly (2) comprises a connecting ring (21), a connecting rod (22), a first bolt and a second bolt; the connecting ring (21) is mounted on a side wall of the support rod assembly (1), and both ends of the connecting rod (22) are respectively connected to adjacent connecting rings (21).

4. The independent support device for early dismantling of a large-span beam according to claim 3 is characterized in that: The connecting ring (21) is provided with a first connecting hole (211); slots (221) adapted to the thickness of the connecting ring (21) are respectively provided at both ends of the connecting rod (22), and second connecting holes (222) are respectively provided on the top and bottom surfaces of the slot (221); the connecting ring (21) can be inserted into the slot (221) and the first connecting hole (211) and the second connecting hole (222) are communicated; the stud of the first bolt can be inserted into the first connecting hole (211) and the second connecting hole (222); a nut is screwed onto the surface of the stud, and the nut can be crimped onto the bottom surface of the connecting rod (22).

5. The independent support device for early dismantling of a large-span beam according to claim 4 is characterized in that: The first connection hole (211) and the second connection hole (222) are both through holes.

6. The long-span beam early dismantling independent support device according to claim 5 is characterized in that: The connection components (2) are provided in three pieces, wherein the connection ring (21) of one of the connection components (2) is sleeved and fixed on the side wall of the upper rod body (11), and the connection rings (21) of the other two connection components (2) are sleeved and fixed on the side walls of the lower rod body (12).

7. The long-span beam early dismantling independent support device according to claim 6, characterized in that: A cylindrical extension portion (212) is provided at the inner edge of the connection ring (21), and a third connection hole (2121) is provided on the side wall of the extension portion (212); the stud of the second bolt can penetrate the third connection hole (2121) and be fixedly connected to the upper rod body (11) or the lower rod body (12).

8. The independent support device for early dismantling of a large-span beam according to claim 7, characterized in that: The side wall of the upper rod body (11) and the side wall of the lower rod body (12) are respectively provided with mounting screw holes adapted to fit the second bolt.

9. The independent support device for early dismantling of a large-span beam according to claim 8, characterized in that: The top end of the upper rod body (11) is vertically fixedly connected to a top supporting plate (1101), and the bottom end of the lower rod body (12) is vertically fixedly connected to a bottom supporting plate (1201); the first pad (3) is pressed onto the bottom surface of the bottom supporting plate (1201), and the second pad (4) is pressed onto the top surface of the top supporting plate (1101).

10. A construction method for the long-span beam early dismantling independent support device according to claim 9, characterized in that the steps include: S1, erecting a forming mold (5) for a large-span beam, installing the second pad (4) at the position of a reserved hole (501) opened in the forming mold (5), so that the top surface of the second pad (4) is flush with the bottom surface of the cavity of the forming mold (5); S2, laying a receiving plate (6) at the bottom surface of the cavity, and then pouring concrete into the cavity and vibrating it; S3, curing the concrete, and installing the support rod assembly (1) during the curing process; S4, when the concrete hardening reaches more than 80%, the forming mold (5) is removed; S5. When the concrete hardening reaches 100%, the large-span beam and the independent support device are removed; The steps of installing the support rod assembly (1) in step S3 include: S31, using a connecting assembly (2) to connect the adjacent lower rod bodies (12); S32, selectively aligning the strip-shaped hole (121) with the plug-in hole (111), so that the current distance between the top supporting plate (1101) and the bottom supporting plate (1201) matches the height of the second pad (4) from the ground, thereby achieving a rough adjustment of the support rod assembly (1); S33, fixing the first pad (3) on the bottom surface directly below the second pad (4) by means of expansion bolts; S34, placing the support rod assembly (1) upright so that the bottom support plate (1201) is pressed onto the second pad (4), and then inserting the cross-insertion rod (14) into the strip hole (121) and the selected plug-in hole (111); then rotating the limit ring (13) so that the limit ring (13) pushes the cross-insertion rod (14) upward until the top support plate (1101) presses the second pad (4), thereby achieving fine adjustment of the support rod assembly (1).

Images