Formwork supporting system capable of being adjusted in multiple dimensions and using method

Abstract

The invention discloses a formwork supporting system capable of being adjusted in multiple dimensions and a using method, and belongs to the technical field of steel structure building construction.The formwork supporting system comprises an adjustable supporting assembly, a bearing structure and a construction platform assembly; one end of the bearing structure extends out of the outer side of the steel beam from the lower part of the steel beam and is connected with the construction platform assembly; the bearing structure can be driven by the adjustable supporting assembly to adjust the height in the vertical direction. According to the formwork supporting system capable of being adjusted in the multi-dimension mode, a concrete formwork supporting system of an outer model of a current-layer building can be set up, a concrete formwork system of an outer model of an upper-layer building can also be set up, the number of vertical supports is reduced, and a spacious and transparent operation space is provided for other procedures of a lower-layer floor.

Description

Technical Field

[0001] The present invention relates to the technical field of steel structure building construction, and particularly relates to a formwork support system that can be adjusted in multiple dimensions and a usage method thereof. Background Art

[0002] With the vigorous development of buildings, the external shapes of buildings are becoming more and more complex. Taking steel structures as the main body of buildings, for durability, concrete is still used for pouring the external shapes and floors of buildings. For floors, steel bar truss floor decks, profiled steel sheet composite floors, etc. can be used to avoid formwork support. However, for the shaping part, due to the complex construction method and large overhanging dimensions, sometimes a shaping needs to be poured in multiple times. Moreover, the horizontal shaping is very high from the lower support points. Using the floor-standing concrete formwork support method has high material cost and great danger, and cannot make full use of the main structure, resulting in the ineffective utilization of the lower space during the construction stage.

[0003] The existing technologies all set up overhanging formwork support systems, which are fixed on the outer sides of concrete beams or shear walls on the periphery of the building through embedded bolts, post-embedded bolts or bolts passing through beams (walls). Then, one end of the stay cable is fixed to the end of the steel beam of the overhanging formwork system, and the other end is fixed to the outer side of the concrete beam (wall) or column side of the main building structure. The disadvantage of this solution is that it cannot realize the erection of the formwork support system for the horizontal shaping of the concrete on the periphery of the building on this floor, and there is no case introduction of using this method in steel structure buildings. Summary of the Invention

[0004] Aiming at the problems existing in the prior art, the present invention provides a formwork support system that can be adjusted in multiple dimensions and a usage method thereof. By setting up a support component that can be adjusted in multiple dimensions, fixing it on the lower flange of the steel structure H-shaped beam, and adjusting the position of the fixing point back and forth along the length direction of the beam by adjusting its height up and down and according to the thickness of the beam flange, the overhanging load-bearing structure (steel beam) is fixed, so as to realize the erection of the concrete formwork support system for the external shaping of the building on this floor and the concrete formwork system for the external shaping of the upper building, reduce the number of vertical supports, and provide a spacious and transparent operation space for other processes on the lower floors.

[0005] The technical solution of the present invention is as follows:

[0006] In the first aspect of the present invention, a formwork support system that can be adjusted in multiple dimensions is provided, including an adjustable support component, a load-bearing structure, and a construction platform component; one end of the adjustable support component is connected to the lower flange of the steel beam, and the other end is connected to the load-bearing structure. One end of the load-bearing structure extends out of the steel beam to the outside of the steel beam and is connected to the construction platform component; the load-bearing structure can be driven by the adjustable support component to adjust the height in the vertical direction.

[0007] In some embodiments of the present invention, the adjustable support assembly includes an adjustable hanging rod, a horizontal connecting rod, and a flange clamp; the flange clamp is arranged on the adjustable hanging rod and can slide on the adjustable hanging rod; one end of the adjustable hanging rod is rotatably connected to the horizontal connecting rod to form a T-shaped structure.

[0008] In some embodiments of the present invention, the horizontal connecting rod is connected to the load-bearing structure, and the flange clamp is connected to the lower flange of the steel beam.

[0009] In some embodiments of the present invention, a plurality of through holes are arranged along the length direction of the adjustable hanging rod, and the flange clamp is detachably connected to the adjustable hanging rod through a connecting bolt connecting the through hole.

[0010] In some embodiments of the present invention, an opening structure is arranged at the connection between the flange clamp and the lower flange of the steel beam, and the opening structure is used for clamping the lower flange of the steel beam; a tightening bolt is arranged on the opening structure for clamping after the lower flange of the steel beam is clamped by the opening structure.

[0011] In some embodiments of the present invention, the horizontal connecting rod and the adjustable hanging rod are connected by a fastening bolt, and a fastener is arranged on the connection between the horizontal connecting rod and the adjustable hanging rod and sleeved outside the fastening bolt.

[0012] In some embodiments of the present invention, two U-shaped bolts are symmetrically arranged at both ends of the horizontal connecting rod with respect to the adjustable hanging rod, and both of the two U-shaped bolts are connected to the load-bearing structure.

[0013] In some embodiments of the present invention, the construction platform assembly includes a support platform, and the support platform is arranged on the load-bearing structure extending out of the steel beam.

[0014] In some embodiments of the present invention, the construction platform assembly further includes a casting formwork, and the casting formwork is arranged at one end of the support platform close to the steel beam; a safety railing is arranged at one end of the support platform away from the casting formwork.

[0015] In the second aspect of the present invention, a use method of a multi-dimensionally adjustable formwork support system is provided, including the following steps:

[0016] Step 1, assemble the adjustable support assembly, adjust the height of the flange clamp on the adjustable hanging rod according to the distance between the lower flange of the steel beam and the load-bearing structure and then connect, and rotate the horizontal connecting rod and the adjustable hanging rod by a corresponding angle according to the direction of the load-bearing structure and then connect;

[0017] Step 2, connect the flange clamp to the lower flange of the steel beam and fix it through a fastening bolt, connect the horizontal connecting rod to the load-bearing structure through a U-shaped bolt, and set multiple groups of adjustable support assemblies and the connection between the load-bearing structure and the steel beam according to the actual construction situation;

[0018] Step 3: Set up a support platform on the outer side of the steel beam where the load-bearing structure extends from the lower part of the steel beam, and set up a casting form on the side of the support platform close to the steel beam for concrete pouring operations.

[0019] One or more technical solutions of the present invention have the following beneficial effects:

[0020] The multi-dimensionally adjustable formwork support system and its usage method provided by the present invention can greatly solve the convenience of cast-in-place concrete shaping construction outside the high-rise building floors for steel structures. It can be used synchronously on multiple floors, and because there is no vertical support, it can provide a spacious operating space indoors, facilitating the synchronous construction of multiple processes, effectively shortening the construction period, and improving construction efficiency.

[0021] Moreover, the present invention can make full use of existing steel components during the shaping construction process, can adapt to steel structure H-shaped beams with different thicknesses and different cross-sectional heights. By adjusting the adjustable support components fixed on the beam cross-sections at different heights, the surface elevation of the cantilever platform can be made consistent. By adjusting the adjustable support assembly, the direction of the cantilever truss can be adjusted, facilitating the erection of the platform at the corner part.

[0022] In addition, the formwork support work in the prior art is laborious and requires the setting up of external scaffolding. While the present invention can realize the erection of the external shaping concrete formwork system of the superstructure, reduce the number of vertical supports, thereby reducing the complexity and cost of the entire support system. At the same time, it provides a spacious operating space for other processes on the lower floors. Further, by reducing the number of formwork systems and the use of vertical supports, the potential hazards during the construction process are reduced. Fewer support systems mean fewer potential instability factors, improving safety. Description of the Drawings

[0023] Figure 1 It is the overall structure diagram of the adjustable support assembly of the multi-dimensionally adjustable formwork support system provided in Embodiment 1 of the present invention;

[0024] Figure 2 It is the overall schematic diagram of the connection structure between the adjustable support assembly and the lower flange of the steel beam and the load-bearing structure provided in Embodiment 1 of the present invention;

[0025] Figure 3 It is the overall assembly structure diagram of the multi-dimensionally adjustable formwork support system provided in Embodiment 1 of the present invention;

[0026] Figure 4 It is the construction application schematic diagram of the multi-dimensionally adjustable formwork support system provided in Embodiment 1 of the present invention.

[0027] In the figure: 1. fastening bolt; 2. adjustable suspension rod; 3. flange fixture; 4. U-bolt; 5. jacking bolt; 6. fastener; 7. lower flange of steel beam; 8. load-bearing structure; 9. guardrail; 10. support platform; 11. casting formwork. Specific implementation manner

[0028] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0029] Embodiment 1

[0030] In a typical implementation manner of the present invention, a template support system that can be adjusted in multiple dimensions is proposed, including an adjustable support assembly, a load-bearing structure 8, and a construction platform assembly; one end of the adjustable support assembly is connected to the lower flange 7 of the steel beam, and the other end is connected to the load-bearing structure 8. One end of the load-bearing structure 8 extends out of the steel beam from the lower part of the steel beam and is connected to the construction platform assembly; the load-bearing structure 8 can be adjusted in height in the vertical direction under the drive of the adjustable support assembly.

[0031] Multiple groups of adjustable support assemblies and load-bearing structures 8 are connected to the steel beam according to the actual construction situation. In this embodiment, a total of three groups of adjustable support assemblies and load-bearing structures 8 are connected to the steel beam. At the same time, the upper and lower heights of the three groups of adjustable support assemblies and load-bearing structures 8 are adjusted respectively, and the positions of the fixed points are adjusted back and forth along the length direction of the rigid beam, so that the heights of the construction platforms provided on the load-bearing structures 8 extending out of the steel beam from the lower part of the steel beam are the same. The load-bearing structure 8 can adopt a load-bearing truss or a joist according to the actual situation. The construction platform assembly is fixed on the upper part of the outrigger load-bearing structure and is supported by the load-bearing structure. The load-bearing structure can be adjusted up and down through the adjustable support assembly to reach the design elevation.

[0032] In addition, in order to prevent the situation that the end droops due to insufficient stiffness of the load-bearing structure 8 and the deformation exceeds the specified value, the deformation amount can be calculated in advance, and the end of the load-bearing structure 8 can be lifted in advance to achieve the purpose of pre-arching, so as to solve the problem of end drooping.

[0033] Furthermore, the adjustable support assembly includes an adjustable suspension rod 2, a horizontal connecting rod, and a flange fixture 3; the flange fixture 3 is arranged on the adjustable suspension rod 2 and can slide on the adjustable suspension rod 2; one end of the adjustable suspension rod 2 is rotatably connected to the horizontal connecting rod to form a T-shaped structure.

[0034] Among them, the connection position of the flange fixture 3 on the adjustable suspension rod 2 can be set according to the distance between the lower flange 7 of the steel beam and the load-bearing structure 8. The adjustable suspension rod 2 is rotatably connected to the horizontal connecting rod, and the direction of the cantilever load-bearing structure 8 can be adjusted, which is convenient for the erection of the platform at the corner. That is, in this embodiment, the load-bearing structure 8 is parallel to the side connecting beam of the steel beam. However, in other embodiments of the present invention, the load-bearing structure 8 at the corner cannot be parallel to the side connecting beam of the steel beam. At this time, it is necessary to rotate the horizontal connecting rod to adjust the direction of the cantilever load-bearing structure 8.

[0035] The horizontal connecting rod connects the load-bearing structure 8, and the flange fixture 3 connects the lower flange 7 of the steel beam. The flange fixture 3 can adjust the position of its fixing point along the length direction of the steel beam according to the actual operation conditions to ensure the stability of the connection structure, providing greater flexibility and adaptability.

[0036] Further, a plurality of through holes are provided along the length direction on the adjustable suspension rod 2. The flange fixture 3 is detachably connected to the adjustable suspension rod 2 through connecting bolts connected to the through holes. In this embodiment, two connecting bolts are provided at the connection between the flange fixture 3 and the adjustable suspension rod 2, and the two connecting bolts are connected to the through holes on the adjustable suspension rod 2. Such a setting can ensure the stable force in the vertical direction of the flange fixture 3 and is not easily damaged by force. In addition, the positions of the connecting bolts on the flange fixture 3 correspond to the through holes on the adjustable suspension rod 2 to ensure convenient connection. In this embodiment, the distance between the two connecting bolts is equal to the distance between the four through holes.

[0037] An opening structure is provided at the connection between the flange fixture 3 and the lower flange 7 of the steel beam. The opening structure is used to clamp the lower flange 7 of the steel beam; a tightening bolt 5 is provided on the opening structure for clamping after the lower flange 7 of the steel beam is clamped into the opening structure. In this embodiment, the opening structure is set as a concave structure, and the lower flange 7 of the steel beam is clamped inside. When the lower flange 7 of the steel beam is clamped into the opening structure, it is fixed by tightening the tightening bolt 5 to abut against the lower flange 7 of the steel beam. Such a setting can adapt to the clamping and fixing of the lower flange 7 of steel beams with different thicknesses, expanding the applicable range of the flange fixture 3.

[0038] The horizontal connecting rod and the adjustable suspension rod 2 are connected by a fastening bolt 1, and a fastener 6 is provided at the connection between the horizontal connecting rod and the adjustable suspension rod 2 and sleeved outside the fastening bolt 1. The fastener 6 can ensure the more stable connection between the horizontal connecting rod and the adjustable suspension rod 2.

[0039] In this embodiment, the flange fixture 3 is provided with a suspension rod outer sleeve having upper and lower connecting holes; through holes matching the diameter and spacing of the suspension rod outer sleeve are equally spaced on the side of the adjustable suspension rod 2, and the adjustable suspension rod 2 can move up and down inside the suspension rod outer sleeve and is fixed to the suspension rod outer sleeve by connecting bolts or pins;

[0040] The lower end of the adjustable suspension rod 2 is provided with internal threads. The horizontal connecting rod is connected to the adjustable suspension rod 2 by the fastening bolt 1 to form a T shape. A fastener 6 is provided at the connection between the horizontal connecting rod and the adjustable suspension rod 2 and is sleeved outside the fastening bolt 1. The fastener 6 abuts against the horizontal connecting rod. A screw rod at the bottom of the fastener 6 passes through the horizontal connecting rod. A nut is provided at the lower part of the horizontal connecting rod to connect the screw rod. By screwing the nut, the horizontal connecting rod can be finely adjusted up and down and locked on the screw rod, and the horizontal connecting rod can also rotate around the screw rod, that is, the center of the adjustable suspension rod 2.

[0041] Two U-shaped bolts 4 are symmetrically arranged at both ends of the horizontal connecting rod with the adjustable suspension rod 2. Both of the two U-shaped bolts 4 are connected to the load-bearing structure 8. In this embodiment, the horizontal connecting rod is arranged at the lower sides of the two connecting frames on the upper part of the load-bearing structure 8 and is respectively fixedly connected by the U-shaped bolts 4 to ensure the stability of the connection structure.

[0042] The construction platform assembly includes a support platform 10, and the support platform 10 is arranged on the load-bearing structure 8 extending out of the steel beam. The construction platform assembly further includes a casting formwork 11, and the casting formwork 11 is arranged at one end of the support platform 10 close to the steel beam; a safety railing 9 is provided at one end of the support platform 10 far from the casting formwork. With such a setting, it is convenient for the operators to carry out concrete pouring operations on the exterior shape part of the building, protects the safety of the operators, reduces the number of traditional vertical supports, and provides a spacious and transparent operation space for other processes on the lower floors.

[0043] In the second aspect of the present invention, a method for using a multi-dimensionally adjustable formwork support system is provided, including the following steps:

[0044] Step 1, assemble the adjustable support assembly according to the actual construction situation. According to the cross-sectional dimensions of the steel beam in the drawing, determine the height and quantity of the adjustable support assembly at the corresponding position, and adjust the adjustable support assembly to the corresponding height; after adjusting the height of the flange clamp 3 on the adjustable suspension rod 2 according to the distance between the lower flange of the steel beam and the load-bearing structure 8, connect them. After rotating the horizontal connecting rod and the adjustable suspension rod 2 by a corresponding angle according to the direction of the load-bearing structure 8, connect them;

[0045] Step 2, clamp the flange clamp 3 onto the lower flange of the steel beam and tighten the top bolt 5 to firmly fix the adjustable support assembly to the lower flange of the steel beam. Connect the horizontal connecting rod and the load-bearing structure 8 by the U-shaped bolts 4. Set multiple groups of adjustable support assemblies and the load-bearing structure 8 to be connected to the steel beam according to the actual construction situation;

[0046] Step 3, set the support platform 10 on the outside of the steel beam where the load-bearing structure 8 extends out of the lower part of the steel beam, and set the casting formwork 11 on the side of the support platform 10 close to the steel beam to carry out concrete pouring operations.

[0047] A multi-dimensionally adjustable formwork support system and its usage method provided by the present invention can greatly solve the convenience of cast-in-place concrete shaping construction outside the high-rise building floors for steel structures. It can be used synchronously on multiple floors. And because there is no vertical support, it can provide a spacious operating space indoors, facilitating the synchronous construction of multiple processes, effectively shortening the construction period and improving the construction efficiency;

[0048] Moreover, the present invention can make full use of existing steel components during the shaping construction process. It can adapt to steel structure H-shaped beams with different thicknesses and different cross-section heights. By adjusting the adjustable support components fixed on the beam cross-sections at different heights, the surface elevation of the cantilever platform can be made consistent. By adjusting the adjustable support assembly, the direction of the cantilever truss can be adjusted, facilitating the erection of the platform at the corner part;

[0049] In addition, the formwork support workload in the prior art is large and external scaffolding needs to be set up. While the present invention can realize the erection of the external shaping concrete formwork system of the superstructure, reduce the number of vertical supports, thereby reducing the complexity and cost of the entire support system, and at the same time providing a spacious operating space for other processes on the lower floors;

[0050] Furthermore, the present invention reduces the potential hazards existing in the construction process by reducing the number of formwork systems and the use of vertical supports. Fewer support systems mean fewer potential unstable factors, improving the safety.

[0051] Although the specific implementation manners of the present invention are described above in conjunction with the drawings, it is not a limitation on the protection scope of the present invention. Those skilled in the art should understand that based on the technical solutions of the present invention, various modifications or deformations that can be made without creative labor by those skilled in the art are still within the protection scope of the present invention.

Claims

1. A multi-dimensionally adjustable formwork support system, characterized in that: It includes an adjustable support assembly, a load-bearing structure, and a construction platform assembly; one end of the adjustable support assembly is connected to the lower flange of the steel beam, and the other end is connected to the load-bearing structure; one end of the load-bearing structure extends from the lower part of the steel beam to the outer side of the steel beam to connect to the construction platform assembly; the load-bearing structure can adjust the height in the vertical direction under the drive of the adjustable support assembly.

2. A multi-dimensionally adjustable formwork support system as claimed in claim 1, characterized in that: The adjustable support assembly includes an adjustable suspension rod, a horizontal connecting rod, and a flange clamp; the flange clamp is arranged on the adjustable suspension rod and can slide on the adjustable suspension rod; one end of the adjustable suspension rod can be rotatably connected to the horizontal connecting rod to form a T-shaped structure.

3. A multi-dimensionally adjustable formwork support system as claimed in claim 2, characterized in that: The horizontal connecting rod is connected to the load-bearing structure, and the flange clamp is connected to the lower flange of the steel beam.

4. A multi-dimensionally adjustable formwork support system as claimed in claim 2, characterized in that: The adjustable suspension rod is provided with a plurality of through holes along the length direction, and the flange clamp is detachably connected to the adjustable suspension rod by connecting the through holes with connecting bolts.

5. The multi-dimensionally adjustable formwork support system according to claim 2, characterized in that: An opening structure is provided at the connection between the flange clamp and the lower flange of the steel beam, and the opening structure is used to clamp the lower flange of the steel beam; the opening structure is provided with a tightening bolt, which is used to clamp the lower flange of the steel beam after being clamped with the opening structure.

6. The multi-dimensionally adjustable formwork support system according to claim 2, characterized in that: The horizontal connecting rod and the adjustable suspension rod are connected by fastening bolts, and a fastener is provided at the connection between the horizontal connecting rod and the adjustable suspension rod and is sleeved on the outside of the fastening bolts.

7. The multi-dimensionally adjustable formwork support system according to claim 1, characterized in that: Two U-shaped bolts are symmetrically arranged at both ends of the horizontal connecting rod with adjustable suspension rods, and the two U-shaped bolts are both connected to the load-bearing structure.

8. The multi-dimensionally adjustable formwork support system according to claim 1, characterized in that: The construction platform assembly includes a support platform, which is arranged on a load-bearing structure extending from a steel beam.

9. A multi-dimensionally adjustable formwork support system as claimed in claim 8, characterized in that: The construction platform assembly also includes a casting template, which is arranged at one end of the support platform close to the steel beam; a protective railing is provided at one end of the support platform away from the casting template.

10. A method for using a multi-dimensionally adjustable formwork support system according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Assemble the adjustable support assembly. According to the cross-sectional dimensions of the steel beam in the drawing, determine the height and quantity of the adjustable support assembly at the corresponding position, and adjust the adjustable support assembly to the corresponding height; according to the distance between the lower flange of the steel beam and the load-bearing structure, adjust the height of the flange clamp on the adjustable suspension rod and connect it; according to the direction of the load-bearing structure, rotate the horizontal connecting rod and the adjustable suspension rod to a corresponding angle and connect them; Step 2: Insert the flange clamp into the lower flange of the steel beam and tighten the jacking bolts to firmly fix the adjustable support assembly to the lower flange of the steel beam. Connect the horizontal connecting rod to the load-bearing structure through U-bolts. Set multiple sets of adjustable support assemblies and load-bearing structures to connect with the steel beam according to the actual construction situation. Step three, a support platform is set on the outer side of the steel beam where the load-bearing structure extends out from the lower part of the steel beam, and a casting template is set on the side of the support platform close to the steel beam for concrete pouring operations.

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