Construction methods for cantilever formwork systems and adjustable cantilever formwork systems

Abstract

This invention discloses a construction method for a cantilever formwork system and a finely adjustable cantilever formwork system. The construction method includes the following steps: Step A, installing a tripod operating platform; Step B, assembling the formwork system; Step C, installing and fixing the vertical main back brace, fine-tuning device, adjustable triangular support, adjusting seat, and movable scaffolding with casters on the tripod operating platform; Step D, hoisting the entire frame including the tripod operating platform and hooking it onto the embedded parts in the lower structural concrete; Step E, increasing the reserved structural space through the fine-tuning device, and using the tripod operating platform and the movable scaffolding with casters as a platform to tie the structural reinforcement; Step F, after the reinforcement is tied, hoisting the formwork system assembled in Step B into place, adjusting the formwork system to the designed structural dimensions using the fine-tuning device, correcting it, and pouring the structural concrete.

Description

[0001] This application is a divisional application of Chinese Patent Application No. 202110337791.7, entitled "An Adjustable Cantilever Formwork System Device and a Construction Method Thereof", filed on March 30, 2021, the contents of which are incorporated herein by reference. Technical Field

[0002] This invention relates to the field of cleaning equipment technology, and in particular to a construction method for a cantilever formwork system and a finely adjustable cantilever formwork system. Background Technology

[0003] Traditional methods of erecting ground-based scaffolding are time-consuming, labor-intensive, and inefficient. While cantilevered tripods can serve as working platforms, the presence of tie rods increases the risk of water leakage. Cantilever formwork systems are primarily used in industrial buildings, particularly in areas with high concrete frame beams or shear walls. These systems offer high rigidity, efficient turnover, and save space beneath the formwork. Summary of the Invention

[0004] The purpose of this invention is to provide a construction method for a cantilever formwork system and a finely adjustable cantilever formwork system.

[0005] To achieve the above objectives, in a first aspect, the present invention proposes a construction method for a cantilever formwork system, comprising the following steps: Step A: Install the first I-beam, scaffold boards, and guardrails between the two tripods on the ground to form a tripod operating platform; Step B: Simultaneously assemble the template, the second I-beam, and the transverse main back ribs on the ground to form the template system; Step C: Install and fix the vertical main back rib, fine-tuning device, adjustable triangular support, adjusting seat, and movable scaffold with casters on the tripod operating platform; wherein, the bottom of the vertical main back rib is connected to the fine-tuning gear and the back of the vertical main back rib is connected to one end of the adjustable triangular support, and the movable scaffold with casters is fixedly connected to the vertical main back rib and connected to the other end of the adjustable triangular support; Step D: The entire frame, including the tripod operating platform, formed in step C, is hoisted and hooked onto the embedded parts in the lower structural concrete; wherein, two tripods are connected to the embedded parts in the structural concrete. Step E: Increase the reserved structural space by using the fine-tuning device, and use the tripod operating platform and the movable scaffold with casters as a platform to tie the structural steel bars; Step F: After the reinforcement is tied, the formwork system assembled in Step B is hoisted into place, and the formwork system is adjusted to the designed structural size position by the fine adjustment device. The structural concrete is then poured. The horizontal main back rib of the formwork system is placed on the adjustment seat fixed on the tripod operating platform, and the adjustment seat is adjusted vertically.

[0006] In one or more alternative embodiments, step A further includes: Step A1: Two tripods are made of steel profiles. The first I-beam and scaffold boards are laid on the two tripods and connected by clamps.

[0007] In one or more alternative embodiments, step B further includes: Step B1: Make a template using wooden templates, make a second I-beam using I-beams, and make a transverse main back rib using double channel steel.

[0008] In one or more alternative embodiments, step C further includes: Step C1: The movable scaffold with casters is fixedly connected to the vertical main back beam using the first fastener. A fine-tuning device is installed at the bottom of the vertical main back beam and connected to the tripod platform.

[0009] In one or more alternative embodiments, step D further includes: Step D1: During the construction of the lower concrete structure, embed the pre-embedded parts into the structure and install the threaded rod with a nut on the exposed side of the concrete.

[0010] In one or more alternative embodiments, step E further includes: Step E1: Use a regular torque wrench to adjust the fine-tuning device to increase the reserved space in the structure, and then start tying the structural steel bars.

[0011] In one or more alternative embodiments, step F further includes: Step F1: Connect the horizontal main back rib to the vertical main back rib with adjustable triangular support using the second fastener, and adjust the position of the formwork relative to the structural concrete using the adjusting seat.

[0012] To achieve the above objectives, in a second aspect, the present invention proposes a finely adjustable cantilever formwork system device, employing the cantilever formwork system device construction method as described in the first aspect. The finely adjustable cantilever formwork system device includes: The tripod operating platform includes two tripods and a first I-beam, scaffold boards, and guardrails installed between the two tripods. The first I-beam and scaffold boards are laid on the two tripods and are connected by clamps. The two tripods are connected to the embedded parts in the concrete of the lower structure. The system includes a vertical main back rib, a fine-tuning gear, an adjustable triangular support, an adjusting seat, a movable scaffold with casters, and a second fastener, which can be installed and fixed on the tripod operating platform. The bottom of the vertical main back rib is connected to the fine-tuning gear, and the back of the vertical main back rib is connected to one end of the adjustable triangular support. The movable scaffold with casters is fixedly connected to the vertical main back rib and to the other end of the adjustable triangular support. The template system includes templates that can be pre-assembled on the ground, a second I-beam, and a horizontal main back rib. The horizontal main back rib is connected to the vertical main back rib by a second fastener. The horizontal main back rib can be placed on an adjustment seat, which is used for vertical adjustment. Among them, the tripod operating platform and the movable scaffold with casters can be used as a rebar binding platform; adjusting the fine-tuning gear can increase the reserved space of the cantilever formwork system and adjust the position of the formwork according to the design requirements; the movable scaffold with casters can move with the fine-tuning of the vertical main back rib, and the setting of the triangular support and fine-tuning gear can be adjusted to adjust the distance between the formwork and the concrete structure and the tilt angle of the formwork.

[0013] In one or more alternative embodiments, the inner bottom of the two tripods is provided with support feet that are close to the structural wall of the overall operating platform. The two tripods are equipped with guardrails and the fine-tuning gears can be adjusted using a common torque wrench.

[0014] In one or more alternative embodiments, the template is connected to the second I-beam by nails and then connected to the transverse main back rib by snap fasteners.

[0015] In one or more alternative embodiments, the transverse main back rib is placed on an adjusting seat and vertically adjusted by the adjusting seat; the vertical main back rib and the transverse main back rib are made of double channel steel.

[0016] In one or more alternative embodiments, the vertical main back rib and the horizontal main back rib are made of double-layered 10# channel steel.

[0017] In one or more alternative embodiments, the embedded part is a detachable climbing cone on the outside of the structural concrete, and two tripods are connected to the embedded part by means of snap fasteners.

[0018] In one or more alternative embodiments, the movable scaffold with casters is fixedly connected to the vertical main back beam by a first fastener.

[0019] In one or more alternative embodiments, the transverse main back rib and the vertical main back rib are connected by a second fastener.

[0020] In one or more alternative embodiments, the first I-beam is connected to the scaffold plank using a standard torque wrench.

[0021] The beneficial effects of this invention are as follows: The cantilever formwork system construction method of this embodiment can avoid the increased risk of water leakage caused by the connection of tie rods through the structure. It provides a finely adjustable cantilever formwork system that only requires the use of a common torque wrench to adjust the fine-tuning device. The adjustable triangular support and the fine-tuning device can adjust the vertical and vertical distance between the formwork and the concrete structure, as well as the tilt angle of the formwork relative to the concrete structure. To ensure sufficient space for rebar tying, the fine-tuning device is operated with a wrench to increase the reserved space in the structure. The fine-tuning device is adjusted with a wrench to position the formwork in the design requirements, and the adjustable triangular support is used to adjust the formwork 11 to an appropriate angle. The transverse main back rib of the formwork system rests on the adjustment seat fixed on the tripod operating platform. The vertical adjustment of the adjustment seat can adjust the formwork in the vertical direction. Attached Figure Description

[0022] Figure 1 A schematic diagram of the installation structure of the adjustable cantilever formwork system during the rebar tying stage; Figure 2 This is a schematic diagram of the installation structure of the adjustable cantilever formwork system during the template installation phase. Figure 3 This is a schematic diagram of the horizontal fine-tuning of the mold frame system; Figure 4 This is a structural diagram of the first and second fasteners.

[0023] In the diagram: 1. Two tripods; 2. Clamps; 3. First I-beam; 4. Scaffold boards; 5. Guardrails; 6. Adjustable triangular supports; 7. Movable scaffold with casters; 8. Concrete structure; 9. Embedded parts; 10. Fine-tuning gears; 11. Templates; 12. Adjustment seats; 13. Vertical main back brace; 14. First fastener; 15. Horizontal main back brace; 16. Second fastener; 17. Second I-beam; 18. Support legs. Detailed Implementation

[0024] The technical solution of the present invention will now be clearly and completely described in conjunction with the accompanying drawings and specific embodiments.

[0025] like Figure 1 , Figure 2 The diagram shows the installation structure of an adjustable cantilever formwork system according to the present invention during the rebar tying and formwork installation stages. The adjustable cantilever formwork system of the present invention includes a tripod 1, clamps 2, a first I-beam 3, scaffold boards 4, guardrails 5, adjustable triangular supports 6, a movable scaffold with casters 7, embedded parts 9, fine-tuning gears 10, formwork 11, adjusting seats 12, vertical main back ribs 13, first fasteners 14, horizontal main back ribs 15, second fasteners 16, and a second I-beam 17.

[0026] Two tripods 1 are connected and secured by erecting and fixing a first I-beam 3, scaffold boards 4, and guardrails 5 to form an operating platform. The first I-beam 3 and the scaffold boards 4 are connected by clamps 2, such as ordinary torque wrenches. There can be two or more first I-beams 3. The bottom inner side of the two tripods 1 is equipped with support legs 18, which are close to the structural wall of the overall operating platform.

[0027] The embedded part 9 is embedded in the structural concrete 8, and the outer side of the concrete is a detachable climbing cone. The tripod 1 is connected to the embedded part 9, preferably by a snap-fit ​​connection, which facilitates installation and removal.

[0028] Template 11 and the second I-beam 17 are connected by nails and then connected to the horizontal main back rib 15 by snap fasteners; the horizontal main back rib 15 is connected to the vertical main back rib 13 with adjustable triangular support 6, preferably by a second fastener 16, the structure of which is as follows: Figure 4 As shown. The back of the vertical main back rib 13 is connected to the adjustable triangular support 6, and the other end of the adjustable triangular support 6 is connected to the movable scaffold 7 with casters. The movable scaffold 7 with casters can be used as a rebar tying platform. The movable scaffold 7 with casters is fixedly connected to the vertical main back rib 13, preferably by a first fastener 14, the structure of which is as follows. Figure 4 As shown. A fine-tuning device 10 is provided at the bottom of the vertical main back rib 13, and the fine-tuning device 10 is connected to the tripod platform. Under the action of the fine-tuning device, the movable scaffold 7 with casters can move with the fine-tuning of the vertical main back rib 13. The fine-tuning device is preferably a fine-tuning gear. When adjusting the fine-tuning device 10, a common torque wrench is required. The adjustable triangular support 6 and the fine-tuning device can adjust the distance between the formwork 11 and the concrete structure and the tilt angle of the formwork 11.

[0029] The horizontal main back rib (15) is placed on the adjustment seat 12, and the adjustment seat 12 is adjusted vertically.

[0030] The two tripods 1 are preferably made of steel profiles; the template 11 is a wooden template; the second I-beam 17 (secondary back rib) is an I-beam; the horizontal main back rib 15 and the vertical main back rib 13 are preferably made of double channel steel, and more preferably made of double-jointed 10# channel steel.

[0031] During the construction of the lower concrete structure 8, the embedded parts 9 are embedded in the structure, and the threaded rods with nuts are installed on the exposed concrete side.

[0032] Step A: Connect and fix the two tripods 1, the first I-beam 3, the scaffold board 4, and the guardrail 5 on the ground using clamps 2 to form a tripod operating platform.

[0033] Step B: Simultaneously, pre-assemble template 11, the second I-beam 17, and the transverse main back rib 15 on the ground to form a template system, such as... Figure 1 As shown.

[0034] Step C: Install and fix the vertical main back rib 13, fine-tuning gear 10, adjustable triangular support 6, adjusting seat 12, and movable scaffolding with casters 7 onto the tripod operating platform.

[0035] Step D: The frame structure formed in step C, including the tripod operating platform, is hoisted and hooked onto the embedded part (9) in the lower structure concrete (8).

[0036] Step E: To ensure sufficient space for rebar tying, such as... Figure 3 As shown, the fine-tuning device 10 is operated with a wrench to increase the reserved space in the structure, and the structural steel bars are tied using a tripod operating platform and a movable scaffold 7 with casters as a platform.

[0037] Step F: As Figure 2 As shown, after the rebar tying is completed, the pre-assembled formwork system (assembled in step A) is hoisted into place and then... Figure 3 As shown, the fine-tuning device 10 is adjusted using a wrench to position the template 11 in the required design position, and the adjustable triangular support 6 is used to adjust the template 11 to an appropriate angle. After the template 11 is adjusted, structural concrete can be poured.

[0038] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A construction method for a cantilever formwork system, characterized in that, Includes the following steps: Step A: Install the first I-beam, scaffold boards, and guardrails between the two tripods on the ground to form a tripod operating platform; Step B: Simultaneously assemble the template, the second I-beam, and the transverse main back ribs on the ground to form the template system; Step C: Install and fix the vertical main back beam, fine-tuning device, adjustable triangular support, adjusting seat, and movable scaffolding with casters on the tripod operating platform; wherein, the back of the vertical main back beam is connected to the adjustable triangular support, and the other end of the adjustable triangular support is connected to the movable scaffolding with casters; a fine-tuning device is provided at the bottom of the vertical main back beam, and the fine-tuning device is connected to the tripod platform; under the action of the fine-tuning device, the movable scaffolding with casters can move with the fine-tuning of the vertical main back beam; Step D: The entire frame, including the tripod operating platform, formed in step C, is hoisted and hooked onto the embedded parts in the lower structural concrete; wherein, two tripods are connected to the embedded parts in the structural concrete. Step E: Increase the reserved structural space by using the fine-tuning device, and use the tripod operating platform and the movable scaffold with casters as a platform to tie the structural steel bars; Step F: After the reinforcement is tied, the formwork system assembled in Step B is hoisted into place, and the formwork system is adjusted to the designed structural dimensions using a fine-tuning device. The structural concrete is then poured. The horizontal main back ribs of the formwork system are placed on the adjusting seat, which is then vertically adjusted.

2. The construction method of the cantilever formwork system as described in claim 1, characterized in that, The first I-beam, scaffold boards, and guardrails are laid on the two tripods, and the first I-beam and scaffold boards are connected by clamps.

3. The construction method of the cantilever formwork system as described in claim 1, characterized in that, The template and the second I-beam are connected by nails and then connected to the horizontal main back rib by snaps. The horizontal and vertical main back ribs are made of double channel steel.

4. The construction method of the cantilever formwork system as described in claim 1, characterized in that, The movable scaffold with casters is fixedly connected to the vertical main back beam, and the two are fixedly connected by the first fastener.

5. The construction method of the cantilever formwork system as described in claim 1, characterized in that, During the construction of the lower concrete structure, embedded parts are embedded in the structure, and threaded rods with nuts are installed on the exposed concrete side.

6. The construction method of the cantilever formwork system as described in claim 1, characterized in that, When adjusting the fine-tuning device, a regular torque wrench must be used.

7. The construction method of the cantilever formwork system as described in claim 1, characterized in that, The horizontal main back rib is connected to the vertical main back rib with adjustable triangular support, and the two are connected by a second fastener.

8. A finely adjustable cantilever formwork system device, applied to the construction method of the cantilever formwork system device as described in any one of claims 1-7, characterized in that, include: Two tripods are used, on which the first I-beam, scaffold boards, and guardrails are laid. The first I-beam and scaffold boards are connected by clamps to form an operating platform. The two tripods are connected to the embedded parts in the structural concrete. The template, after being connected to the second I-beam with nails, is connected to the horizontal main back rib with snaps; the horizontal main back rib is connected to the vertical main back rib with adjustable triangular supports, the back of the vertical main back rib is connected to the adjustable triangular supports, the other end of the adjustable triangular supports is connected to the movable scaffold with casters, and a fine-adjustment device is set at the bottom of the vertical main back rib, which is connected to the tripod platform; under the action of the fine-adjustment device, the movable scaffold with casters can move with the fine adjustment of the vertical main back rib.

9. The adjustable cantilever formwork system device as described in claim 8, characterized in that, The two tripods have support feet on the inner bottom, which are close to the structural wall of the overall operating platform.

10. The adjustable cantilever formwork system device as described in claim 8, characterized in that, The vertical and horizontal main back ribs are made of double channel steel.

11. The adjustable cantilever formwork system device as described in claim 10, characterized in that, The vertical and horizontal main back ribs are made of double-layered 10# channel steel.

12. The adjustable cantilever formwork system device as described in claim 8, characterized in that, The embedded part has a detachable climbing cone on the outside of the structural concrete, and the two tripods are connected to the embedded part by a snap-fit ​​method.

13. The adjustable cantilever formwork system device as described in claim 12, characterized in that, The movable scaffold with casters is fixedly connected to the vertical main back beam by the first fastener.

14. The adjustable cantilever formwork system device as described in claim 13, characterized in that, The horizontal main back rib and the vertical main back rib are connected by a second fastener.

15. The adjustable cantilever formwork system device as described in claim 13, characterized in that, The first I-beam is connected to the scaffold plank using a standard torque wrench.

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