Wall formwork supporting structure and construction method thereof

Abstract

The invention relates to the technical field of formwork supporting, in particular to a wall formwork supporting framework and a construction method thereof.The wall formwork supporting framework comprises opposite-pull screws and two side formworks and further comprises gaskets, the two side formworks are arranged at intervals according to the thickness of a wall, and bolt through holes are formed in the positions, corresponding to the opposite-pull screws, of the two side formworks respectively; the opposite-pull screw rod sequentially penetrates through the two side templates; gaskets are respectively arranged on the inner sides of the two side templates, the gaskets are in threaded connection with the opposite-pull screw rods, and the outer sides of the gaskets are tightly propped against the inner surfaces of the side templates; an inner side nut and an outer side nut are arranged on the two sides of each side formwork respectively, the gaskets are arranged between the inner side nuts and the side formworks, and the inner side nuts and the outer side nuts lock the side formworks and the gaskets. The formworks on the two sides are accurately positioned, displacement is avoided, the thickness of the formed wall is consistent, protection layers are formed at the two ends of the opposite-pull screw, and the hidden danger of water leakage is eliminated.

Description

Technical Field

[0001] The invention relates to the technical field of formwork support, and in particular to a wall formwork support framework and a construction method thereof. Background Art

[0002] At present, in the process of construction, in order to achieve the purpose of speeding up the construction progress and reducing the project cost, a large number of construction forms are used and the casting method is used to form the wall. After receiving the construction drawings, the construction unit needs to design the formwork in time, and arrange the formwork and the supporting structure. The supporting structure plays a role in preventing the formwork from collapsing in the whole process. The existing concrete formwork support system is mainly composed of a formwork and a tension screw. The formwork includes an inner formwork and an outer formwork, and a cavity for pouring concrete is formed between the inner formwork and the outer formwork, and the tension screw is used to connect the inner formwork and the outer formwork. Cement support strips or other supporting formwork materials are also required to be arranged between the inner formwork and the outer formwork for supporting the inner formwork and the outer formwork. However, in the actual construction process, cement support strips and other supporting formwork materials are prone to displacement during the concrete vibration process, which affects the distance between the inner formwork and the outer formwork, and further causes inconsistent thickness of the formed wall; during the pouring process, the position where the formwork is connected to the tension screw is prone to slurry leakage. After the concrete is formed, the slurry leakage position needs to be repaired for the second time, which affects the aesthetics of the wall; after the pouring is completed, the position of the tension screw on the wall needs to be repaired. If the repair is not good, there will be a risk of water seepage, affecting the construction quality. Summary of the invention

[0003] In view of the deficiencies in the prior art, the object of the present invention is to provide a wall formwork support structure and a construction method thereof, which can replace the traditional formwork tensioning, ensure the uniform thickness of the wall, and prevent slurry leakage and water seepage.

[0004] The technical solution adopted by the present invention to solve the technical problem is: A wall formwork support structure includes a tension screw and two side formworks, and is characterized in that: it also includes a gasket, the two side formworks are spaced apart according to the thickness of the wall, bolt through holes are opened on the two side formworks at positions corresponding to the tension screws, and the tension screws pass through the two side formworks in sequence; gaskets are respectively arranged on the inner sides of the two side formworks, the gaskets are threadedly connected to the tension screws, and the outer sides of the gaskets are tightened against the inner surfaces of the side formworks; inner nuts and outer nuts are respectively arranged on both sides of each side formwork, the gasket is placed between the inner nut and the side formwork, and the inner nuts and outer nuts lock the side formworks and the gaskets.

[0005] Compared with the prior art, the present invention has the following beneficial effects: This structure does not use cement support strips or other materials to support the formwork, so there will be no problem of displacement of the supporting formwork materials during construction. The spacing between the two side formworks is accurate, and the thickness of the wall after forming is consistent; and the spacing between the formworks on both sides can be freely adjusted to adapt to the casting of walls of different thicknesses.

[0006] Further, the preferred embodiment adopted by the present invention is: The gasket comprises a locking nut and a pressing disc. A polystyrene extruded foam board is arranged outside the locking nut and the polystyrene extruded foam board is placed between the pressing disc and the side template.

[0007] The pressing disc is arranged at one end of the locking nut and is an integral structure with the locking nut.

[0008] The surface of the pressing disc is also provided with a plurality of steel bars at intervals in the circumferential direction.

[0009] The present invention also relates to a construction method of a wall formwork support structure, and the specific method steps are as follows: S1. Determine the distance between the two spacers according to the thickness of the wall; S2. Soak the gasket with release agent before construction; S3. Tie up wall reinforcement at the construction site; S4. After the wall reinforcement is tied, first screw the inner nuts into the two ends of the tension screw respectively and adjust the position of each inner nut; S5. Screw a washer into one end of the tension screw to make it fit tightly against the inner nut; S6. The other end of the tension screw rod passes through the already tied steel bars, and then screws the washer into the end so that the washer fits tightly against the inner nut of the end; S7. Install the side formwork at both ends of the tension screw respectively. After the side formwork is installed, screw in the outer nuts at both ends of the tension screw respectively to fix the side formwork; S8. Pour concrete. When the concrete reaches the required strength, unscrew the outer nuts and remove the two side formworks. S9. Remove the polystyrene extruded foam board on the gasket to expose the locking nut, then use a wrench and the locking nut to unscrew the gasket and clean the groove formed by the gasket on the wall surface; S10. Break the tension screws and smooth the groove with waterproof mortar or ordinary mortar. Finally, apply three-color waterproof coating at the location and the construction is completed.

[0010] This method uses a recessed treatment on the connection position between the wall and the tension screw to prevent sharp objects from existing on the wall surface, thus avoiding damage to the waterproof membrane. The recessed area is filled and smoothed to form a protective layer on both ends of the tension screw to avoid exposed reinforcement and to avoid gaps near the tension screw due to vibration during concrete pouring, thereby eliminating the risk of water leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 is a schematic diagram of the structure of the gasket; Figure 3 Schematic diagram of the distribution of steel bars; Explanation of the reference numerals: 1. side formwork; 2. tension screw; 3. inner nut; 4. gasket; 41. locking nut; 42. pressing disc; 43. steel bar; 44. polystyrene extruded foam board; 5. outer nut. DETAILED DESCRIPTION

[0012] The present invention is further described below in conjunction with specific embodiments, the purpose of which is only to provide a better understanding of the content of the present invention. Therefore, the examples given do not limit the protection scope of the present invention.

[0013] like Figure 1 As shown, a wall formwork support structure is composed of a tension screw 2, two side formworks 1 and a gasket 4. The spacing between the two side formworks 1 is determined according to the thickness of the wall. Bolt holes are opened on the two formworks from top to bottom corresponding to the positions of the tension screws 2. The tension screws 2 pass through the two side formworks 1 at one time through the bolt holes.

[0014] like Figure 2 , Figure 3 As shown, gaskets 4 are respectively provided on the inner sides of the two side formworks 1. The thickness of the gaskets 4 is consistent with the thickness of the wall steel bar protective layer. The gaskets 4 are composed of a locking nut 41 and a clamping disc 42. The clamping disc 42 is placed on the inner side of the locking nut 41, and a coaxial through hole is provided at the center of the clamping disc 42 corresponding to the center hole of the locking nut 41. The tension screw 2 passes through the gasket 4 and is threadedly connected with the locking nut 41.

[0015] In this embodiment, a polystyrene extruded foam board 44 is arranged on the outer side of the pressing disc 42 around the outer edge of the locking nut 41 , and the polystyrene extruded foam board 44 is placed between the pressing disc 42 and the inner surface of the side template 1 .

[0016] In the present embodiment, in order to improve the supporting strength of the clamping disc 42, a plurality of steel bars 43 are evenly arranged on the outer edge surface of the clamping disc 42 around its axis. The steel bars 43 can be embedded in the outer edge surface of the clamping disc 42, or can be an integrated structure with the clamping disc 42. In the present embodiment, the number of steel bars 43 is 6.

[0017] An inner nut 3 is installed on the inner side of each gasket 4, and the inner nut 3 is threadedly connected to the tension screw 2; an outer nut 5 is installed on the outer side of each side formwork 1, and each outer nut 5 is also threadedly connected to the tension screw 2; the inner nut 3 has a tightening effect on the gasket 4, and the outer nut 5 has a tightening effect on the side formwork 1.

[0018] Based on the above support structure, when performing formwork support, the specific construction method steps are as follows: S1. Determine the distance between the two gaskets 4 and the specific position of each inner nut 3 according to the thickness of the wall.

[0019] S2 and gasket 4 are processed in the factory as a whole. Gasket 4 is soaked in a release agent before construction to facilitate later removal.

[0020] S3. Tie up the wall reinforcements at the construction site according to the wall design requirements.

[0021] S4. After the wall reinforcement is tied, first screw the inner nuts 3 into the two ends of the tension screw rod 2 respectively, and adjust the position of each inner nut 3.

[0022] S5. Screw the washer 4 into one end of the tension screw 2 so that it fits tightly against the inner nut 3, so that the washer 4 cannot move left and right along the screw.

[0023] S6. The other end of the tension screw rod 2 passes through the wall to which the steel bars have been tied, and then the gasket 4 is screwed into the end so that the gasket 4 is in close contact with the inner nut 3 of the end.

[0024] S7. Install the side formwork 1 at both ends of the tension screw 2 respectively. After the side formwork 1 is installed, screw the outer nuts 5 at both ends of the tension screw 2 respectively to fix the side formwork 1 respectively.

[0025] S8, pouring concrete. After the concrete has been cured for a certain period of time and has reached sufficient strength, unscrew the outer nut 5 and then remove the two side formworks 1.

[0026] S9. Remove part of the polystyrene extruded foam board 44 on the gasket 4 to expose the locking nut 41, then use a wrench and the locking nut 41 to unscrew the gasket 4, clean the groove formed by the gasket 4 on the wall surface, and when the gasket 4 moves outward, the pressing disc 42 brings out the polystyrene extruded foam board 44 in the groove.

[0027] S10, break the tension screw 2, and smooth the groove with a higher grade waterproof mortar or ordinary mortar, and finally apply three-color waterproof coating at this position, and the construction is completed.

[0028] The present invention does not use cement support strips or other materials to support the formwork, so there will be no displacement of the material supporting the formwork during construction, and the accuracy of the spacing between the two side formworks can be ensured, and the thickness of the wall after concrete pouring is consistent; the support structure can freely adjust the spacing between the formworks on both sides according to walls of different thicknesses, and has a wide range of uses.

[0029] The present invention adopts a recessed treatment for the connection position between the wall and the tension screw, so that there are no sharp objects on the wall surface, thereby preventing the waterproof membrane from being damaged, and the recessed position is filled and smoothed to form a protective layer for the end of the tension screw, thereby preventing the reinforcement from being exposed and preventing the formation of gaps near the tension screw due to the vibration process during the concrete pouring process, thereby eliminating the hidden danger of water leakage; and the removed gasket in the device (except the part other than the polystyrene extruded foam board) can be recycled and reused.

[0030] The above description is only the preferred embodiment of the present invention, and does not limit the scope of rights of the present invention. All equivalent changes made by using the contents of the present invention specification and its drawings are included in the scope of rights of the present invention.

Claims

1. A wall formwork support structure, comprising a tension screw and two side formworks, characterized in that: It also includes a gasket. The two side templates are spaced apart according to the thickness of the wall. Bolt through holes are opened on the two side templates respectively corresponding to the positions of the tension screws. The tension screws pass through the two side templates in sequence. Gaskets are respectively arranged on the inner sides of the two side templates. The gaskets are threadedly connected to the tension screws, and the outer sides of the gaskets are tightened against the inner surfaces of the side templates. An inner nut and an outer nut are respectively arranged on both sides of each side template. The gasket is placed between the inner nut and the side template. The inner nut and the outer nut lock the side template and the gasket.

2. The wall formwork support structure according to claim 1, characterized in that: The gasket comprises a locking nut and a pressing disc. A polystyrene extruded foam board is arranged outside the locking nut and the polystyrene extruded foam board is placed between the pressing disc and the side template.

3. The wall formwork support structure according to claim 2, characterized in that: The pressing disc is arranged at one end of the locking nut and is an integral structure with the locking nut.

4. The wall formwork support structure according to claim 2, characterized in that: The surface of the pressing disc is also provided with a plurality of steel bars at intervals in the circumferential direction.

5. A construction method for a wall formwork support structure, characterized in that: Applied to the wall formwork support structure according to any one of claims 1 to 4, the specific method steps are as follows: S1. Determine the distance between the two spacers according to the thickness of the wall; S2. Soak the gasket with release agent before construction; S3. Tie up wall reinforcement at the construction site; S4. After the wall reinforcement is tied, first screw the inner nuts into the two ends of the tension screw respectively and adjust the position of each inner nut; S5. Screw a washer into one end of the tension screw to make it fit tightly against the inner nut; S6. The other end of the tension screw rod passes through the already tied steel bars, and then screws the washer into the end so that the washer fits tightly against the inner nut of the end; S7. Install the side formwork at both ends of the tension screw respectively. After the side formwork is installed, screw in the outer nuts at both ends of the tension screw respectively to fix the side formwork; S8. Pour concrete. When the concrete reaches the required strength, unscrew the outer nuts and remove the two side formworks. S9. Remove the polystyrene extruded foam board on the gasket to expose the locking nut, then use a wrench and the locking nut to unscrew the gasket and clean the groove formed by the gasket on the wall surface; S10. Break the tension screws and smooth the groove with waterproof mortar or ordinary mortar. Finally, apply three-color waterproof coating at the location and the construction is completed.

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