Fabricated pier column formwork supporting device

Abstract

The utility model provides an assembly type pier column formwork supporting device, which belongs to the technical field of bridge construction, and comprises a plurality of outer formwork assemblies which are detachably connected together in a stacked manner, the number of the inner formwork assemblies is the same as that of the outer formwork assemblies, each inner formwork assembly is arranged in one outer formwork assembly, and the outer formwork assemblies are connected with the inner formwork assemblies. The fixing seat assembly comprises two mounting seats, one sides of the two mounting seats are provided with embedding grooves, the two mounting seats are fixedly arranged on the ground to clamp the side, close to the bottom, of the outer formwork assembly, threaded connecting parts are arranged at the two ends of the opposite sides of the two mounting seats, and the two mounting seats are fixed on the threaded connecting parts through bolts. By means of the structure, rapid building and dismounting of the formwork are achieved, the field work amount is effectively reduced, meanwhile, the supporting structure is optimized, safety and stability in the construction process are guaranteed, and therefore the double problems that a traditional cast-in-place construction period is long and a prefabricated assembly type construction difficulty is large are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to an assembled pier column formwork supporting device. Background Art

[0002] In the field of bridge construction, traditional cast-in-place construction and prefabricated construction each have their advantages and disadvantages. Although the traditional cast-in-place method is known for its high safety performance and good integrity, the cumbersome on-site operation process, especially the construction and dismantling of a large number of supporting formwork, not only increases construction costs, but also prolongs the construction period, and poses challenges to the control of appearance quality. In contrast, prefabricated construction significantly improves construction efficiency and component aesthetics through factory production of components, becoming an important trend in modern bridge construction. However, when it comes to the installation of large prefabricated piers, their weight far exceeds the conventional lifting capacity, which places strict requirements on lifting equipment. This not only increases the difficulty and risk of construction, but also limits the application of prefabricated technology under certain conditions. Therefore, there is an urgent need for an efficient and convenient prefabricated pier formwork support device to solve the above problems. Utility Model Content

[0003] In order to make up for the above deficiencies, the utility model provides an assembled pier column formwork supporting device for solving the above problems.

[0004] The utility model is achieved in this way:

[0005] A prefabricated pier column formwork support device includes a fixed seat assembly, an outer formwork assembly and an inner formwork assembly. There are several outer formwork assemblies, which are detachably connected together in a stacked shape. The number of inner formwork assemblies is the same as the number of outer formwork assemblies, and each inner formwork assembly is respectively arranged inside one of the outer formwork assemblies. The fixed seat assembly includes two mounting seats, and an embedding groove is provided on one side of the two mounting seats. The two mounting seats are fixedly set on the ground to clamp the outer formwork assembly near the bottom side. At this time, the surface of the outer formwork assembly near the bottom end is completely fitted with the embedding groove, and the two ends of the opposite side of the two mounting seats are provided with threaded connection parts, and the two mounting seats are fixed on the threaded connection parts by bolts.

[0006] In an embodiment of the utility model, the outer formwork assembly includes two outer formwork bodies with semicircular cross-sections and two assembly plates. Any one of the assembly plates is detachably connected to the adjacent edges of the two outer formwork bodies to form a cylindrical shape. Several connecting plates are provided at the two outer ends of the outer formwork assembly.

[0007] In an embodiment of the utility model, the inner side surface of the outer formwork body is provided with a plurality of supporting main ribs, and the inner side surface is also provided with steel grids evenly distributed between the supporting main ribs, and the ends of the supporting main ribs are provided with docking plates a.

[0008] In an embodiment of the utility model, the assembly plate includes a plurality of butt joint plates b arranged on the inner side, and the number of the butt joint plates b is the same as the number of the butt joint plates a on one side of the outer template body.

[0009] In an embodiment of the utility model, threaded holes are provided on the docking plate a and the docking plate b. After the outer template body and the assembly plate are aligned and placed together, any of the docking plates a will come into contact with the adjacent docking plate b. At this time, the threaded holes are aligned and the two are fixed by bolts.

[0010] In an embodiment of the utility model, a bending portion perpendicular to the main body of the connecting plate is provided on one side of the end portion close to the outer formwork body, and a first arc-shaped groove is provided on the top of the bending portion. The connecting plates arranged at both ends of the outer formwork body are symmetrical along the center. After the two outer formwork assemblies are stacked together, the first arc-shaped grooves on the opposite connecting plates are fixed by bolts.

[0011] In an embodiment of the utility model, the inner formwork assembly includes two inner formwork bodies, and the two ends and both sides of the inner formwork bodies are respectively provided with outward-extending transverse flanges and longitudinal flanges, and the transverse flanges and the longitudinal flanges are both provided with sealing gasket layers. A movable groove is provided at the top of the docking plate b on the assembly plate. After the two inner formwork bodies are spliced into a cylindrical shape, the two fitted longitudinal flanges are embedded in the movable groove.

[0012] In an embodiment of the utility model, a plurality of tensioning screws are provided on one side of the inner formwork assembly close to the longitudinal flange, and a plurality of through holes penetrating the body of the assembly plate are provided on the inner side thereof. The number of the through holes is the same as the number of the tensioning screws. After the inner formwork assembly and the outer formwork assembly are coaxially arranged together, any of the tensioning screws pass through the through holes to the outside of the outer formwork assembly and are fixed by nuts.

[0013] In an embodiment of the utility model, a plurality of second arc-shaped grooves are provided on the top of the transverse flange, and after the two inner template assemblies are stacked together, the second arc-shaped grooves are fixed by bolts.

[0014] The beneficial effects of the present invention are as follows: the device adopts a modular design, dividing the formwork support device into independent modules such as a fixed seat assembly, an outer formwork assembly and an inner formwork assembly. This design allows each module to be independently produced, transported and stored, greatly reducing the complexity and difficulty of on-site assembly; a detachable connection method is adopted between the outer formwork assembly and the inner formwork assembly, and supporting main reinforcement and steel grids are provided inside the outer formwork assembly, which effectively enhances the structural strength of the formwork and avoids deformation or damage during the concrete pouring process, while the interior of the inner formwork assembly is a smooth surface, which is convenient for subsequent demoulding. The connection method between the two not only simplifies the installation and disassembly process, but also improves the reuse rate of the formwork and reduces construction costs, especially the replacement cost is low after severe local corrosion or deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 A schematic structural diagram of an assembled pier column formwork support device provided in an embodiment of the present utility model;

[0017] Figure 2 A schematic structural diagram of the outer template body provided in an embodiment of the present utility model;

[0018] Figure 3 A schematic structural diagram of an assembly plate provided by an embodiment of the present invention from one perspective;

[0019] Figure 4 A structural schematic diagram of an assembly plate provided by an embodiment of the present invention from another perspective;

[0020] Figure 5 This is a schematic structural diagram of the inner template body provided in an embodiment of the present utility model.

[0021] In the figure: 10. Fixed seat assembly; 11. Mounting seat; 1101. Embedded groove; 1102. Threaded connection portion; 20. Outer formwork assembly; 21. Outer formwork body; 2101. Support main rib; 2102. Docking plate a; 22. Assembly plate; 2201. Docking plate b; 2202. Movable groove; 2203. Through hole; 23. Connecting plate; 2301. Bending portion; 2302. First arcuate groove; 30. Inner formwork assembly; 31. Inner formwork body; 3101. Transverse flange; 3102. Second arcuate groove; 3103. Longitudinal flange; 3104. Tensile screw; 32. Sealing pad layer. DETAILED DESCRIPTION

[0022] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0024] like Figure 1 As shown, the utility model provides an assembled pier column formwork support device, including a fixing seat assembly 10, an outer formwork assembly 20 and an inner formwork assembly 30. There are several outer formwork assemblies 20, which are detachably connected together in a stacked shape. The number of inner formwork assemblies 30 is the same as the number of outer formwork assemblies 20, and each inner formwork assembly 30 is respectively arranged inside one of the outer formwork assemblies 20. The fixing seat assembly 10 includes two mounting seats 11, and one side of the two mounting seats 11 is provided with an embedding groove 1101. The two mounting seats 11 are fixedly arranged on the ground to clamp the outer formwork assembly 20 near the bottom side. At this time, the surface of the outer formwork assembly 20 near the bottom end is completely in contact with the embedding groove 1101. The two mounting seats 11 are connected together, and threaded connection parts 1102 are provided at the two ends on the opposite side of the two mounting seats 11. The two mounting seats 11 are fixed to the threaded connection parts 1102 by bolts. The formwork support device is modularly designed to facilitate assembly and disassembly. The inner side of the inner formwork component 30 is smooth and easy to remove after being coated with a release agent. The outer formwork component 20 provides support to avoid deformation of the inner formwork component 30 after pouring concrete, thereby increasing structural strength. The fixing seat component 10 at the bottom provides a fixing effect on the outer formwork component 20, and the inner and outer formworks are connected in a stacked and detachable manner to increase the flexibility of the formwork support device, thereby realizing rapid construction and disassembly of the formwork, and effectively reducing the amount of on-site work.

[0025] like Figure 2-4As shown, the outer formwork assembly 20 includes two outer formwork bodies 21 with semicircular cross-sections and two assembly plates 22. Any one of the assembly plates 22 is detachably connected to the adjacent edges of the two outer formwork bodies 21 to form a cylindrical shape. Several connecting plates 23 are provided at the two outer ends of the outer formwork assembly 20.

[0026] like Figure 2 As shown, the inner side surface of the outer formwork body 21 is provided with a number of supporting main bars 2101, and its inner side surface is also provided with steel grilles evenly distributed between the supporting main bars 2101. The supporting main bars 2101 and the steel grilles are used to provide the structural strength of the outer formwork body 21, provide sufficient support for the inner formwork assembly 30, and avoid deformation of the inner formwork assembly 30 during concrete pouring, so that the pier column casting does not meet the standards. The end of the supporting main bar 2101 is provided with a docking plate a2102.

[0027] like Figure 3-4 As shown, the assembly plate 22 includes several docking plates b2201 arranged on the inner side. The number of the docking plates b2201 is the same as the number of the docking plates a2102 on one side of the outer template body 21. Both the docking plates a2102 and the docking plates b2201 are provided with threaded holes. After the outer template body 21 and the assembly plate 22 are aligned and placed together, any docking plate a2102 will conflict with the adjacent docking plate b2201. At this time, the threaded holes are aligned and the two are fixed by bolts.

[0028] In this embodiment, a bending portion 2301 perpendicular to the main body of the outer template 21 is provided on one side of the end of the connecting plate 23 close to the outer template body 21, and a first arc-shaped groove 2302 is provided on the top of the bending portion 2301. The connecting plates 23 arranged at both ends of the outer template body 21 are symmetrical along the center. After the two outer template assemblies 20 are stacked together, the first arc-shaped grooves 2302 on the relative connecting plates 23 are fixed by bolts.

[0029] like Figure 5 As shown, the inner formwork assembly 30 includes two inner formwork bodies 31, and the two ends and both sides of the inner formwork body 31 are respectively provided with outward-extending transverse flanges 3101 and longitudinal flanges 3103, and sealing pad layers 32 are provided on the transverse flanges 3101 and the longitudinal flanges 3103. A movable groove 2202 is provided on the top of the docking plate b2201 on the assembly plate 22. After the two inner formwork bodies 31 are spliced into a cylindrical shape, the two fitted longitudinal flanges 3103 are embedded in the movable groove 2202.

[0030] Furthermore, a plurality of tensioning screws 3104 are provided on one side of the inner formwork assembly 30 close to the longitudinal flange 3103, and a plurality of through holes 2203 penetrating the assembly plate 22 are provided on the inner side thereof. The number of the through holes 2203 is the same as the number of the tensioning screws 3104. After the inner formwork assembly 30 and the outer formwork assembly 20 are coaxially arranged together, any tensioning screw 3104 passes through the through hole 2203 to the outside of the outer formwork assembly 20 and is fixed by a nut.

[0031] In this embodiment, a plurality of second arc-shaped grooves 3102 are formed on the top of the transverse flange 3101 . After the two inner formwork assemblies 30 are stacked together, the second arc-shaped grooves 3102 are fixed by bolts.

[0032] Specifically, the working principle of the assembled pier column formwork support device is as follows: the pier column is fixed at the target position with a steel cage, and the inner formwork assembly 30, the outer formwork assembly 20 and the fixing seat assembly 10 are assembled in sequence on the outside of the steel cage. Specifically, the two inner formwork bodies 31 are first docked so that they wrap the bottom outside of the steel cage, and then the two outer formwork bodies 21 and the two assembly plates 22 are assembled on the outside thereof to form two coaxial inner and outer formworks. The tension screw 3104 on the inner formwork body 31 passes through the inside to the outside of the outer formwork assembly 20 and is fixed by a nut so that the two become a whole. Two mounting seats 11 are set on the outside of the outer formwork assembly 20 for alignment and clamping, and bolts and nuts are used to fix them on the threaded connection part 1102. Then, according to the height of the steel cage, they are stacked on the current inner formwork assembly 30 and the outer formwork assembly 20 until a preset height is reached. The above structure can realize the rapid construction and disassembly of the formwork, effectively reduce the amount of on-site work, and optimize the support structure to ensure safety and stability during construction, thereby overcoming the dual problems of the long construction period of traditional cast-in-place construction and the difficulty of prefabricated assembly construction.

[0033] The above further describes the present invention with the help of specific embodiments, but it should be understood that the specific description here should not be construed as limiting the essence and scope of the present invention. Various modifications made to the above embodiments by ordinary technicians in this field after reading this specification are all within the scope of protection of the present invention.

Claims

1. An assembled pier column formwork support device, characterized in that: The invention comprises a fixing seat assembly (10), an outer formwork assembly (20) and an inner formwork assembly (30), wherein the outer formwork assemblies (20) are provided in a plurality and are detachably connected together in a stacked shape, the number of the inner formwork assemblies (30) is the same as the number of the outer formwork assemblies (20), and each inner formwork assembly (30) is respectively arranged inside one of the outer formwork assemblies (20), and the fixing seat assembly (10) comprises two mounting seats (11), one side of the two mounting seats (11) is provided with an embedding groove (1101), and the two mounting seats (11) are fixedly arranged on the ground to clamp the outer formwork assembly (20) near the bottom side, at which time the surface of the outer formwork assembly (20) near the bottom end is completely fitted with the embedding groove (1101), and the two ends of the opposite side of the two mounting seats (11) are provided with threaded connection parts (1102), and the threaded connection parts (1102) are fixed to the two mounting seats (11) by bolts.

2. The assembled pier formwork support device according to claim 1, characterized in that: The outer formwork assembly (20) comprises two outer formwork bodies (21) with semicircular cross-sections and two assembly plates (22), wherein any one of the assembly plates (22) is detachably connected to adjacent edges of the two outer formwork bodies (21) to form a cylindrical shape, and a plurality of connecting plates (23) are provided at both ends of the outer side of the outer formwork assembly (20).

3. The assembled pier column formwork support device according to claim 2, characterized in that: The inner side surface of the outer formwork body (21) is provided with a plurality of supporting main ribs (2101), and the inner side surface is also provided with steel grids evenly distributed between the supporting main ribs (2101), and the ends of the supporting main ribs (2101) are provided with docking plates a (2102).

4. The assembled pier column formwork support device according to claim 3, characterized in that: The assembly plate (22) includes a plurality of butt joint plates b (2201) arranged on the inner side, and the number of the butt joint plates b (2201) is the same as the number of the butt joint plates a (2102) on one side of the outer template body (21).

5. The assembled pier column formwork support device according to claim 4, characterized in that: Threaded holes are provided on both the docking plate a (2102) and the docking plate b (2201). After the outer template body (21) and the assembly plate (22) are aligned and placed together, any of the docking plates a (2102) contacts the adjacent docking plate b (2201). At this time, the threaded holes are aligned and the two are fixed by bolts.

6. The assembled pier column formwork support device according to claim 5, characterized in that: The connecting plate (23) is provided with a bending portion (2301) perpendicular to the main body thereof on one side of the end portion close to the outer template body (21), and a first arc-shaped groove (2302) is provided on the top of the bending portion (2301). The connecting plates (23) provided at both ends of the outer template body (21) are symmetrical along the center. After the two outer template assemblies (20) are stacked together, the first arc-shaped grooves (2302) on the opposite connecting plates (23) are fixed by bolts.

7. The assembled pier formwork support device according to claim 6, characterized in that: The inner formwork assembly (30) includes two inner formwork bodies (31), and the two ends and both sides of the inner formwork bodies (31) are respectively provided with outwardly extending transverse flanges (3101) and longitudinal flanges (3103), and the transverse flanges (3101) and the longitudinal flanges (3103) are both provided with sealing pad layers (32). The top of the docking plate b (2201) on the assembly plate (22) is provided with a movable groove (2202). After the two inner formwork bodies (31) are spliced into a cylindrical shape, the two fitted longitudinal flanges (3103) are embedded in the movable groove (2202).

8. The assembled pier column formwork support device according to claim 7, characterized in that: The inner formwork assembly (30) is provided with a plurality of tension screws (3104) on one side close to the longitudinal flange (3103), and the inner side of the assembly plate (22) is provided with a plurality of through holes (2203) penetrating its body, and the number of the through holes (2203) is the same as the number of the tension screws (3104). After the inner formwork assembly (30) and the outer formwork assembly (20) are coaxially arranged together, any of the tension screws (3104) penetrates the through holes (2203) to the outside of the outer formwork assembly (20) and is fixed by a nut.

9. The assembled pier column formwork support device according to claim 8, characterized in that: A plurality of second arc-shaped grooves (3102) are provided on the top of the transverse flange (3101). After the two inner template assemblies (30) are stacked together, the second arc-shaped grooves (3102) are fixed by bolts.

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