A formwork reinforcement structure and construction method for a wall in-situ casting area

Abstract

An embodiment of the present invention provides a formwork reinforcement structure for a wall casting area, comprising: a wall structure including a casting area; a formwork, which is connected to the wall structure to enclose the facade of the casting area; a first reinforcement tooling for reinforcing the connection between the formwork and the wall structure, the first reinforcement tooling including an internal thread nut and a quick thread assembly, the internal thread nut is located inside the wall structure, being an embedded internal wall thread nut (MK1) when located in the inner leaf wall and an embedded outer leaf board thread nut (MK2) when located in the outer leaf board; the quick thread assembly is connected to one end of the internal thread nut close to the formwork to realize the fixation of the formwork and the wall structure; the internal thread nut has a hollow structure inside, and there are protrusions on the inner side of at least one end of the hollow structure for connecting with the quick thread assembly. An embodiment of the present invention also provides a construction method for formwork reinforcement in a wall casting area.

Description

Technical Field

[0001] The invention relates to a wall construction formwork reinforcement technology, in particular to a wall cast-in-place area formwork reinforcement structure and a construction method. Background Art

[0002] When assembling the prefabricated wall, two pieces of the wall need to be butted together. After the two pieces of the wall are butted together, there is still a certain gap between them. This gap is the cast-in-place area of ​​the wall. The facade of the cast-in-place area is usually open, and it is necessary to support the formwork, fix the formwork to the prefabricated walls on both sides, close the cast-in-place area, and then pour concrete from the top into the cast-in-place area to achieve the connection of adjacent prefabricated walls.

[0003] At present, there are two main ways to fix the formwork. One is to embed an inner thread in the inner wall of the prefabricated wall as a fixed connection structure with the formwork, which is used to screw in the screw rod. The other is to set a through hole in the prefabricated wall and fix the formwork and the wall with tension bolts. The disadvantages of using embedded inner threads include: 1. It is easy for foreign objects, concrete, etc. to enter, which will cause the reinforcement to be loose and damage the expanded formwork; 2. If the inner thread is tilted during embedding, it is difficult to screw in the screw rod due to the angle problem during installation. 3. When installing the screw rod, a PVC pipe must be put on. When applying the plaster, the PVC pipe ensures the isolation of the screw rod and the concrete. When removing, the PVC pipe is left in the concrete to remove the screw rod. If the plaster enters, it cannot be removed and can only be cut; 4. Cement pads need to be added when supporting the formwork. The problems with using through holes are: 1. It needs to be blocked later, and it is easy to get water if the blocking is not strict; 2. It is impossible to add decorative surfaces.

[0004] Therefore, it is necessary to provide a new type of wall cast-in-place area formwork reinforcement structure to solve the various problems caused by the existing reinforcement structure. Summary of the invention

[0005] The purpose of the present invention is to provide a wall cast-in-place area template reinforcement structure and construction method, which does not require pre-embedded internal threads to avoid problems such as blockage and mold expansion, and does not require subsequent sealing of holes to prevent problems such as water seepage caused by loose sealing.

[0006] To solve the above problems, in a first aspect, an embodiment of the present invention provides a wall cast-in-place area formwork reinforcement structure, comprising:

[0007] Wall structures including cast-in-place areas;

[0008] A formwork connected to the wall structure to close the facade of the cast-in-place area;

[0009] A first reinforcement tool is used for reinforcing the connection between the template and the wall structure. The first reinforcement tool comprises an inner nut and a fast screw assembly. The inner nut is located in the wall structure. When located in the inner leaf wall, it is a pre-embedded inner wall nut (MK1), and when located in the outer leaf plate, it is a pre-embedded outer leaf plate nut (MK2). The fast screw assembly is connected to one end of the inner nut close to the template to achieve fixation of the template and the wall structure.

[0010] The inner nut has a hollow structure inside, and a protrusion is provided on the inner side of at least one end of the hollow structure for connecting with the fast wire assembly.

[0011] Furthermore, the template is a metal template; the inner nut is located in the inner leaf wall of the wall structure.

[0012] Furthermore, a rib structure is provided on the outer side of the template, and the fast-thread component passes through the rib structure and is then connected and fixed to the inner nut; the rib structure includes transverse ribs and / or vertical ribs.

[0013] Furthermore, the inner nut is located in the cast-in-place area of ​​the wall structure, and the inner sides of both ends of the hollow structure of the inner nut have protrusions; the first reinforcement tool also includes a first embedded part pre-embedded in the outer blade plate and the insulation layer of the wall structure, and the end of the first embedded part has an external thread and extends from the insulation layer, thereby connecting to one end of the inner nut, and the other end of the inner nut is connected to the quick-thread assembly.

[0014] Furthermore, the first embedded part includes a sheet-shaped body located inside the outer blade plate and a screw rod connected to the sheet-shaped body and passing through the outer blade plate and the thermal insulation layer in sequence.

[0015] Furthermore, a rib structure is provided on the outer side of the template, and the fast-thread component passes through the rib structure and is then connected and fixed to the inner nut; the rib structure includes transverse ribs and / or vertical ribs.

[0016] Furthermore, the inner nut is located in the inner leaf wall of the wall structure, and reinforcing steel bars are passed through the inner nut; the fast-thread assembly passes through the template and is connected to the inner nut.

[0017] Furthermore, the cast-in-place area is a corner cast-in-place area; a second reinforcement tool is provided in the corner cast-in-place area; the second reinforcement tool includes a second embedded part, an insulation anchor and a connecting part for connecting the second embedded part and the insulation anchor; the second embedded part is located in the inner leaf wall of the wall structure and the end thereof extends from the inner leaf wall; the insulation anchor is located in the outer leaf wall and the insulation layer of the wall structure turned from the inner leaf wall at the corner, and the end of the insulation anchor extends from the insulation layer.

[0018] Further, the connecting member is connected to the end of the second embedded member and the end of the thermal insulation tie member through a hook structure.

[0019] Further, the end of the thermal insulation tie member is in a folded-back shape, and one end of the connecting member is a hook for catching the folded-back shape.

[0020] Further, the connecting member has an adjusting mechanism for adjusting its length.

[0021] Further, the length adjusting mechanism includes a strip-shaped frame; a first adjusting screw is inserted through one end of the strip-shaped frame, and a second adjusting screw is inserted through the other end. The first adjusting screw is used to connect to the second embedded member; the second adjusting screw is used to connect to the thermal insulation tie member.

[0022] Further, the wall structure includes a pcf board, a shear wall board, and / or an external hanging board made of a steel structure.

[0023] In a second aspect, an embodiment of the present invention provides a construction method for formwork reinforcement in a wall casting area, including:

[0024] Docking two adjacent walls, erecting formwork to form a casting area of the wall structure;

[0025] Connecting the formwork and the wall structure through a first reinforcement tool; the first reinforcement tool includes an internal thread nut and a quick thread assembly. The internal thread nut is located inside the wall structure. When it is located in the inner leaf wall, it is a pre-embedded inner wall thread nut (MK1), and when it is located in the outer leaf board, it is a pre-embedded outer leaf board thread nut (MK2); the quick thread assembly is connected to one end of the internal thread nut close to the formwork to fix the formwork and the wall structure;

[0026] The internal thread nut has a hollow structure, and there are protrusions on the inner side of at least one end of the hollow structure for connecting with the quick thread assembly.

[0027] Compared with the prior art, the present invention has the following beneficial effects: The method of setting internal threads in the wall is cancelled, and an internal thread nut is adopted. The protrusion on the inner side of the internal thread nut has a higher tolerance in connection compared with the internal thread. Therefore, even if a little dust enters the internal thread nut, it does not affect the connection stability. In addition, the internal thread nut does not need to be sleeved with a PVC pipe. Therefore, as a whole, compared with the prior art, the fastening structure does not need to rely on pre-embedded internal threads and does not leave any holes. Therefore, during construction, it is not only fast, has a high tolerance rate, but also does not cause problems such as inability to firmly connect, formwork bulging, and water seepage caused by internal thread blockage and improper hole plugging. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the formwork reinforcement structure in the wall casting area provided by Embodiment 1 of the present invention;

[0029] Figure 2 For Figure 1 Partial enlarged top view of the first reinforcement tooling part (the inner leaf wall and formwork part are in perspective structure)

[0030] Figure 3 For Figure 1 Partial enlarged top view of the second reinforcement tooling part (the outer leaf wall and insulation layer part are in perspective structure)

[0031] Figure 4 Structural schematic diagram of the second reinforcement tooling in the embodiment of the present invention;

[0032] Figure 5 Structural schematic diagram of the second reinforcement tooling in another embodiment of the present invention;

[0033] Figure 6 Overall structural schematic diagram of the formwork reinforcement structure in the casting area of the wall provided in Embodiment 2 of the present invention;

[0034] Figure 7 Enlarged structural schematic diagram of the formwork reinforcement structure in the casting area of the wall provided in Embodiment 2 of the present invention;

[0035] Figure 8 For Figure 6 Top view structural schematic diagram (the outer leaf wall and insulation layer part are in perspective structure);

[0036] Figure 9 Structural schematic diagram of the first type of first reinforcement tooling in Embodiment 2;

[0037] Figure 10 Structural schematic diagram of the second type of first reinforcement tooling in Embodiment 2;

[0038] Figure 11 Structural schematic diagram of another second type of first reinforcement tooling in Embodiment 2;

[0039] Figure 12 Overall structural schematic diagram of the formwork reinforcement structure in the casting area of the wall provided in Embodiment 3 of the present invention;

[0040] Figure 13 For Figure 12 Top view structural schematic diagram at the internal thread nut point (the inner leaf wall is in perspective structure);

[0041] Figure 14 Structural schematic diagram of the internal thread nut provided in the embodiment of the present invention;

[0042] Figure 15 Structural schematic diagram of the thermal insulation tie in one embodiment;

[0043] Figure 16Schematic diagram of the thermal insulation tie member in another embodiment;

[0044] Figure 17 Schematic diagram of the thermal insulation tie member in another embodiment;

[0045] Figure 18 Schematic diagram of another second reinforcement tooling in the embodiment of the present invention;

[0046] In the figure:

[0047] 1 - Wall structure; 101 - Cast-in-place area; 102 - Shear wall; 103 - PCF board; 102a, 103a - Inner leaf wall; 102b, 103b - Thermal insulation layer; 102c, 103c - Outer leaf wall;

[0048] 2 - Formwork;

[0049] 3 - First reinforcement tooling; 301 - Internal thread nut; 3011 - Protrusion; 302 - Gasket; 303 - Nut; 304 - Lead screw; 305 - First embedded part; 3051 - Iron sheet; 3052 - Lead screw; 306 - Transverse steel bar;

[0050] 4 - Second reinforcement tooling; 401 - Connecting piece; 402 - Second embedded part; 403 - Thermal insulation tie member; 4011 - First adjustment screw; 4012 - Second adjustment screw; 4013 - Strip-shaped frame;

[0051] 51 - Longitudinal rib; 52 - Transverse rib. Detailed implementation manners

[0052] The principles and spirit of the present invention will be described below with reference to several exemplary embodiments shown in the drawings. It should be understood that the description of these embodiments is only for enabling those skilled in the art to better understand and then implement the present invention, rather than limiting the scope of the present invention in any way.

[0053] The embodiment of the present invention provides a reinforcement structure for the formwork of the wall cast-in-place area. In the following embodiments, the cast-in-place area at the corner of the wall is taken as an example for illustration. The wall can be a PCF board, a shear wall or an external hanging board of a steel structure. The PCF board only has an outer leaf wall and a thermal insulation layer. The shear wall includes an outer leaf wall, a thermal insulation layer and an inner leaf wall.

[0054] Such as Figure 1 、 6, 12. A formwork reinforcement structure for a wall cast-in-place area provided by an embodiment of the present invention includes a wall structure 1, a formwork 2, and a first reinforcement tool 3. The wall structure includes two adjacent walls and a cast-in-place area 101 formed at the connection or the inner side of these two walls. Taking the corner connection structure of a PCF board and a shear wall as an example, the transition area between the shear wall 102 and the PCF board 103 is the cast-in-place area, and the inner side of the PCF board is also the cast-in-place area. The cast-in-place area on the inner side of the PCF board is used to form the inner leaf wall. Therefore, the cast-in-place area referred to in the embodiment of the present invention can be either the "narrow sense cast-in-place area" generated when adjacent walls are spliced, or the "broad sense cast-in-place area" including the area used to pour the inner leaf wall.

[0055] The formwork 2 is connected to the wall structure 1 to enclose the elevation of the cast-in-place area 101. The material of the formwork 2 can be metal, wood, or other materials. When using a metal formwork, the strength is higher and it is more stable. Therefore, the fixing points between the formwork and the wall structure can be only on the side edge of the formwork.

[0056] The first reinforcement tool 3 is used for the reinforced connection between the formwork 2 and the wall structure 1. The first reinforcement tool 3 includes an internal thread nut 301 and a quick thread assembly. The internal thread nut 301 is located inside the wall structure. When it is located in the inner leaf wall, the internal thread nut 301 is called the embedded inner wall thread nut, which can be abbreviated as MK1. When it is located in the outer leaf board, the internal thread nut 301 is called the embedded outer leaf board thread nut, abbreviated as MK2. The quick thread assembly is connected to one end of the internal thread nut 301 close to the formwork 2 to realize the fixation of the formwork and the wall structure. As Figure 14 shown, the internal thread nut 301 has a hollow structure inside, and there is a protrusion 3011 on the inner side of at least one end of the hollow structure for connecting with the quick thread assembly. The internal thread nut 301 is generally strip-shaped, with a hollow structure inside, and there is a protrusion 3011 on the inner side of the end. For example, when the internal thread nut is made of metal, several depressions can be made by knocking on the outer surface of the internal thread nut 301, and relatively, protrusions 3011 are formed on the inner side of the internal thread nut. This manufacturing method is very simple compared with the manufacturing of internal threads, and the processing cost is also lower. At the same time, the protrusion 3011 is relatively thick compared with the thread of the internal thread, and the shape accuracy is relatively low. Therefore, when connecting with the external thread of the quick thread assembly, the requirement for connection accuracy is not high. Even if a little dust enters the hollow structure, it does not affect the effective connection. Therefore, the error tolerance during connection is higher. However, the thread in the internal thread is very precise, and if a little dust enters, the thread will be filled and the connection cannot be achieved.

[0057] According to the situation of the wall structure and the corner structure, the internal thread nut 301 can be located at multiple positions, for example, it can be located in the inner leaf wall, in the outer leaf wall and the insulation board, and in the cast-in-place area.

[0058] When the in-situ casting area is a corner in-situ casting area, a second reinforcement tooling 4 is provided in the corner in-situ casting area; the second reinforcement tooling 4 includes a second embedded part 402, a thermal insulation tie member 403, and a connecting member 401 for connecting the second embedded part 402 and the thermal insulation tie member 403; the second embedded part 402 is located in the inner leaf walls 102a, 103a of the wall structure and the end part extends out from the inner leaf walls 102a, 103a; the thermal insulation tie member 403 is located in the outer leaf walls 102c, 103c and the thermal insulation layers 102b, 103b of the wall structure that turns from the inner leaf walls 102a, 103a at the corner, and the end part of the thermal insulation tie member 403 extends out from the thermal insulation layers 102b, 103b. The function of the second reinforcement tooling 4 is to hold the outer leaf board and the thermal insulation layer at the corner during concrete pouring to prevent them from expanding and moving outwards. In the cross wall, the second reinforcement tooling 4 is also arranged in a cross manner.

[0059] As Figure 4 shown, the connecting member 401 is connected to the end parts of the second embedded part 402 and the thermal insulation tie member 403 through a hook structure. The hook connection method is fast and convenient, improving the construction efficiency. For example, the second embedded part 402 can be a steel bar, and the end of the steel bar is a circular ring. As Figures 15 - 17 shown, the end part of the thermal insulation tie member 403 can be a U-shaped part or a V-shaped part (that is, a curved or pointed folded part at the end), and two steel bars extending from the closed ends of the U-shaped part and the V-shaped part are sequentially inserted into the thermal insulation layers 102b, 103b and the outer leaf walls 102c, 103c, and the part located in the outer leaf walls 102c, 103c is horizontally bent and then vertically bent to enhance the bonding force with the wall. Both ends of the connecting member 401 are hooks, which are respectively used to connect the end part of the thermal insulation tie member 403 and the end part of the second embedded part 403. In addition, the thermal insulation tie member 403 can also be as Figure 5 shown.

[0060] The connecting member 401 has an adjusting mechanism for adjusting its length. The length adjusting mechanism includes a strip-shaped frame 4013; one end of the strip-shaped frame 4013 is penetrated with a first adjusting screw 4011, and the other end is penetrated with a second adjusting screw 4012. The first adjusting screw 4011 is used to connect with the second embedded part 402; the second adjusting screw 4012 is used to connect with the thermal insulation tie member 403, so that the connecting member 401 can be applicable to different wall distances and different widths of the in-situ casting area, being more flexible. In some other embodiments, as Figure 18 shown, the end part of the thermal insulation tie member 403 is V-shaped, and this structure makes the end part of the thermal insulation tie member 403 and the size of the second adjusting screw 4012 more fitting, and it is not easy to deform when tying the wall structure.

[0061] The following introduces the applicable methods of the first reinforcement tooling and the second reinforcement tooling respectively with three embodiments, of course, not limited to this.

[0062] Embodiment 1

[0063] As Figures 1 - 4 shown, in this embodiment, one side with the inner leaf wall 102a is the shear wall 102, that is, it completely includes the inner leaf wall 102a, the outer leaf wall 102c and the insulation board 102b. The wall connected to the shear wall 102 is the pcf board 103, which only includes the outer leaf wall 103c and the insulation layer 103b, and the inner leaf wall 103a is cast-in-place. An L-shaped corner cast-in-place area is formed between the walls.

[0064] The erected formwork 2 encloses the cast-in-place area 101. The formwork 2 is made of metal, and the internal thread nut 301 is located in the inner leaf wall 103a. Since it is an L corner, the formwork is also L-shaped. There are rib structures on the outer side of the formwork 2. The rib structures include multiple horizontally arranged transverse ribs 51 arranged in parallel, and longitudinal ribs 52 arranged longitudinally and located on the transverse ribs. In this embodiment, the transverse rib 51 is in the shape of a channel steel with an opening downward, and the longitudinal rib 52 is in the shape of two channel steels arranged back to back. There is a gap between the two channel steels for the screw part of the quick wire assembly to pass through, and the gasket part of the quick wire assembly is closely attached to the surfaces of the two channel steels and fixed by nuts. The two transverse ribs at the corner are also connected by inclined ribs, further strengthening the stability of the formwork.

[0065] As mentioned above, the quick wire assembly is composed of a gasket 302, a nut 303, and a screw rod 304. The screw rod 304 passes through the longitudinal rib 52, straddles the transverse rib 51, and then passes through the formwork 2, and then is connected to the internal thread nut 301. The end of the internal thread nut 301 extends to the surface of the inner leaf wall 103a for docking with the quick wire assembly.

[0066] In this embodiment, a metal formwork is used, so the fixing points can be only in the inner leaf wall part, which is more rapid during the reinforcement operation.

[0067] The second reinforcement tooling includes a second embedded part 402, a thermal insulation tie 403, and a connecting piece 401 for connecting the second embedded part 402 and the thermal insulation tie 403. Two second reinforcement toolings are arranged in a skew perpendicular manner. In the first second reinforcement tooling, the second embedded part 402 is located in the inner leaf wall 103a of the pcf board and the end extends out from the inner leaf wall 103a; the thermal insulation tie 403 is located in the outer leaf wall 102c and the insulation layer 102b of the shear wall 102, and the end of the thermal insulation tie 403 extends out from the insulation layer 102b. In the second reinforcement tooling, the second embedded part 402 is located in the inner leaf wall 102a of the shear wall 102, and the thermal insulation tie 403 is located in the outer leaf wall 103c and the insulation layer 103b of the pcf board opposite to the side of the inner leaf wall 102a of the shear wall. Two second reinforcement toolings arranged in a skew perpendicular manner form a group, and multiple groups are arranged from top to bottom in the cast-in-place area 101.

[0068] In this embodiment, the second embedded part 402 is a component with a steel bar at one end and a circular ring at the other end. The circular ring part protrudes from the inner leaf wall as an end part and serves as a connection end. The thermal insulation tie 403 is a steel bar component generally in a U shape, with the folded end being arc-shaped, that is, a standard U shape, or being pointed. The end located in the outer leaf panel is vertically bent and then horizontally bent, so as to strengthen the force in all directions and enhance the tie strength of the L corner.

[0069] The main body of the connecting piece 401 is a strip-shaped frame 4013. Both ends of the strip-shaped frame 4013 are provided with openings and have internal threads, and the first adjusting screw 4011 and the second adjusting screw 4012 are respectively inserted. The ends of the second adjusting screw 4012 and the first adjusting screw 4011 are both hooks, which are respectively used for connecting with the fold of the thermal insulation tie 403 and the circular ring of the second embedded part 402.

[0070] Embodiment 2

[0071] As Figures 6 - 11 shown, in this embodiment, the side with the inner leaf wall 102a is a shear wall, that is, it completely includes the inner leaf wall 102a, the outer leaf wall 102c and the thermal insulation board 102b. The wall connected to the shear wall is a pcf board, which only includes the outer leaf wall 103c and the thermal insulation layer 103b, and the inner leaf wall has not been cast in place yet. An L-shaped corner cast-in-place area is formed between the walls.

[0072] The formwork 2 can be made of wood or other materials. On the back of the formwork 2, there are multiple groups of horizontally arranged transverse ribs 51 in a cylindrical shape or other similar shapes. The inner side of the transverse ribs 51 is a longitudinal rib 52. In this embodiment, the longitudinal rib 52 is multiple wooden squares arranged vertically.

[0073] In this embodiment, the first reinforcement tooling includes two categories. The first category is used to reinforce the formwork, the thermal insulation layer and the outer leaf wall. The second category is used to reinforce the formwork and the inner leaf wall of the shear wall. The following will be introduced separately.

[0074] The first type of the first reinforcement tooling 3 includes a quick wire assembly, an internal thread nut 301, and a first embedded part 305, which are sequentially arranged from the outside of the formwork to the outer leaf panel.

[0075] The structure of the quick wire assembly is the same as that in the previous embodiment and will not be repeated. The structure of the internal thread nut 301 is the same as the above-mentioned one. The special feature is that both ends of the internal thread nut are open, and there are protrusions on the inner sides. One end is used to connect the quick wire assembly, and the other end is used to connect the first embedded part 305. The internal thread nut 301 is located in the cast-in-place area 101, and it can be either in the cast-in-place area close to the shear wall 102 or in the cast-in-place area close to the pcf board 103. The first embedded part 305 is located in the outer leaf walls 102c, 103c and the thermal insulation layers 102b, 103b, and it can be either the outer leaf wall and the thermal insulation layer of the pcf board or the outer leaf panel and the thermal insulation layer of the shear wall.

[0076] The first embedded part 305 includes a circular iron sheet 3051 and a lead screw 3052 integrated with the iron sheet. The iron sheet 3051 is located in the outer leaf walls 102c and 103c, has a large contact area with the concrete, and plays a role in tying and reinforcing. The lead screw 3052 passes through the insulation layers 102b and 103b from the outer leaf walls 102c and 103c and extends from the surfaces of the insulation layers 102b and 103b for connecting the female internal thread. The first embedded part 305 replaces the traditional female internal thread, so there is no need to worry about dust entering the first embedded part. As mentioned before, the structure of the female internal thread 301 is such that even if some dust enters, it will not affect the connection.

[0077] The second type of first reinforcement tooling is located at the connection between the formwork 2 and the edge of the inner leaf wall 102a of the shear wall. The first reinforcement tooling includes a quick screw assembly, a female internal thread 301, and a transverse steel bar 306. Among them, the structure of the quick screw assembly is the same as that of the previous embodiment. The female internal thread 301 is located inside the inner leaf wall 102a, one end is connected to the quick screw assembly passing through the formwork 2, and the other end passes through a transverse steel bar 306 for increasing the tying force of the female internal thread 301 in the inner leaf wall.

[0078] In this embodiment, the second reinforcement tooling is also adopted, and its structure is similar to that in Embodiment 1. It's just that the second reinforcement tooling only needs to connect the inner leaf wall of the shear wall and the outer leaf board and the insulation layer of the PCF board, which will not be repeated here.

[0079] Embodiment 3

[0080] As Figures 12 - 13 shown, this embodiment is basically the same as Embodiment 2, except that the inner leaf wall 103a on the inner side of the PCF board has been formed. The first reinforcement tooling 3 adopted by this inner leaf wall is the second type of first reinforcement tooling in Embodiment 2, and the second reinforcement tooling 4 is also arranged in a cross shape like in Embodiment 1.

[0081] A construction method for formwork reinforcement in the cast-in-place area of a wall body includes:

[0082] Step 1: Dock two adjacent wall bodies, set up formwork, and form a cast-in-place area of the wall body structure;

[0083] Step 2: Connect the formwork and the wall body structure through the first reinforcement tooling; the first reinforcement tooling includes a female internal thread and a quick screw assembly. The female internal thread is located inside the wall body structure, and the quick screw assembly is connected to one end of the female internal thread close to the formwork to fix the formwork and the wall body structure;

[0084] The female internal thread has a hollow structure, and there are protrusions on the inner side of at least one end of the hollow structure for connecting with the quick screw assembly.

[0085] Step 3: Use the second reinforcement tooling to tie the cast-in-place corner area. The second reinforcement tooling includes a second embedded part, a thermal insulation tie, and a connecting piece for connecting the second embedded part and the thermal insulation tie; the second embedded part is located in the inner leaf wall of the wall structure and its end extends out from the inner leaf wall; the thermal insulation tie is located in the outer leaf wall and the thermal insulation layer of the wall structure that turns from the inner leaf wall at the corner, and the end of the thermal insulation tie extends out from the thermal insulation layer.

[0086] Among them, for the structure of the cast-in-place area, the fast wire assembly, the inner wire nut, the position and structure of the first reinforcement tooling and the second reinforcement tooling, please refer to the descriptions in the above embodiments and will not be repeated here.

[0087] In this article, specific examples are used to elaborate on the inventive concept in detail. The descriptions of the above embodiments are only used to help understand the core idea of the present invention. It should be pointed out that for those of ordinary skill in the art of this technology, any obvious modifications, equivalent replacements or other improvements made without departing from the inventive concept should be included in the protection scope of the present invention.

Claims

1. A formwork reinforcement structure for a wall in-situ casting area, characterized in that: It includes: A wall structure including the in-situ casting area; Formwork, which is connected to the wall structure to enclose the vertical surface of the in-situ casting area; The first reinforcement tooling for reinforcing the connection between the formwork and the wall structure. The first reinforcement tooling includes an internal thread nut and a quick thread assembly. The internal thread nut is located inside the wall structure. When it is located in the inner leaf wall, it is a pre-embedded inner wall thread nut (MK1), and when it is located in the outer leaf panel, it is a pre-embedded outer leaf panel thread nut (MK2); the quick thread assembly is connected to one end of the internal thread nut close to the formwork to fix the formwork to the wall structure; The internal thread nut has a hollow structure, and there are protrusions on the inner side of at least one end of the hollow structure for connecting with the quick thread assembly; The in-situ casting area is a corner in-situ casting area; a second reinforcement tooling is provided in the corner in-situ casting area; the second reinforcement tooling includes a second embedded part, a thermal insulation tie piece, and a connecting piece for connecting the second embedded part and the thermal insulation tie piece; the second embedded part is located in the inner leaf wall of the wall structure and its end extends out from the inner leaf wall; The thermal insulation tie piece is located in the outer leaf wall and the thermal insulation layer of the wall structure that turns from the inner leaf wall at the corner, and the end of the thermal insulation tie piece extends out from the thermal insulation layer; The connecting piece is connected to the ends of the second embedded part and the thermal insulation tie piece through a hook structure; the second embedded part is a component with a steel bar at one end and a circular ring at the other end. The circular ring part extends out from the inner leaf wall as the end and serves as the connecting end; The end of the thermal insulation tie piece is in a pointed folded shape. Two steel bars extending from the closed end of the folded shape are successively inserted into the thermal insulation layer and the outer leaf wall, and the part located in the outer leaf wall is horizontally bent and then vertically bent to enhance the bonding force with the wall; The connecting piece has an adjusting mechanism for adjusting its length; The adjusting mechanism includes a strip-shaped frame; a first adjusting screw is inserted through one end of the strip-shaped frame, and a second adjusting screw is inserted through the other end. The first adjusting screw is used to connect to the second embedded part; the second adjusting screw is used to connect to the thermal insulation tie piece; the ends of the second adjusting screw and the first adjusting screw are both hooks, respectively used to connect to the fold of the thermal insulation tie piece and the circular ring of the second embedded part.

2. The formwork reinforcement structure for a wall in-situ casting area according to claim 1, characterized in that The formwork is a metal formwork; the internal thread nut is located in the inner leaf wall of the wall structure.

3. The formwork reinforcement structure for a wall in-situ casting area according to claim 2, characterized in that A rib structure is further provided on the outer side of the formwork, and the quick thread assembly passes through the rib structure and then is connected and fixed to the internal thread nut; the rib structure includes transverse ribs and / or vertical ribs.

4. The formwork reinforcement structure for a wall in-situ casting area according to claim 1, characterized in that The female internal thread is located in the cast-in-place area of the wall structure. Both inner sides of the hollow structure of the female internal thread have protrusions. The first reinforcement tooling further includes a first embedded part buried in the outer leaf panel and the thermal insulation layer of the wall structure. The end of the first embedded part has an external thread and extends out from the thermal insulation layer so as to be connected to one end of the female internal thread, and the other end of the female internal thread is connected to the quick thread assembly.

5. The formwork reinforcement structure for the wall cast-in-place area according to claim 4, wherein, the first embedded part includes a sheet-like body located inside the outer leaf panel and a lead screw connected to the sheet-like body and sequentially passing through the outer leaf panel and the thermal insulation layer.

6. The formwork reinforcement structure for the wall cast-in-place area according to claim 4, wherein, a rib structure is further provided on the outer side of the formwork. The quick thread assembly passes through the rib structure and then is connected and fixed to the female internal thread. The rib structure includes transverse ribs and / or vertical ribs.

7. The formwork reinforcement structure for the wall cast-in-place area according to claim 1, wherein, the female internal thread is located in the inner leaf wall of the wall structure, and a reinforcing bar is penetrated through the female internal thread. The quick thread assembly passes through the formwork and is connected to the female internal thread.

8. The formwork reinforcement structure for the wall cast-in-place area according to claim 1, wherein, the wall structure includes a PCF board, a shear wall board and / or an external hanging board made of steel structure.

9. A construction method for formwork reinforcement in the wall cast-in-place area, wherein, it includes: butting two adjacent walls, erecting formwork to form a cast-in-place area of the wall structure; connecting the formwork and the wall structure through the first reinforcement tooling. The first reinforcement tooling includes a female internal thread and a quick thread assembly. The female internal thread is located inside the wall structure. When it is located in the inner leaf wall, it is a pre-embedded inner wall female thread (MK1), and when it is located in the outer leaf panel, it is a pre-embedded outer leaf panel female thread (MK2). The quick thread assembly is connected to one end of the female internal thread close to the formwork to realize the fixation of the formwork and the wall structure; the female internal thread has a hollow structure, and at least one inner side of the hollow structure has a protrusion for connecting with the quick thread assembly; the cast-in-place area is a corner cast-in-place area. A second reinforcement tooling is provided in the corner cast-in-place area. The second reinforcement tooling includes a second embedded part, a thermal insulation tie piece and a connecting piece for connecting the second embedded part and the thermal insulation tie piece. The second embedded part is located in the inner leaf wall of the wall structure and its end extends out from the inner leaf wall; the thermal insulation tie piece is located in the outer leaf panel and the thermal insulation layer of the wall structure that turns from the inner leaf wall at the corner, and the end of the thermal insulation tie piece extends out from the thermal insulation layer; the connecting piece is connected to the end of the second embedded part and the end of the thermal insulation tie piece through a hook structure. The second embedded part is a component with a steel bar at one end and a circular ring at the other end. The circular ring part extends out from the inner leaf wall as the end and serves as the connecting end; the end of the thermal insulation tie piece is in a pointed folded-back shape. Two steel bars extending from the closed end of the folded-back shape are sequentially penetrated into the thermal insulation layer and the outer leaf panel, and the part located in the outer leaf panel is horizontally bent and then vertically bent to enhance the bonding force with the wall; the connecting piece has an adjusting mechanism for adjusting its length; The adjusting mechanism includes a strip-shaped frame; one end of the strip-shaped frame is penetrated with a first adjusting screw, and the other end is penetrated with a second adjusting screw. The first adjusting screw is used to connect with a second embedded part; the second adjusting screw is used to connect with a thermal insulation tie member; The ends of the second adjusting screw and the first adjusting screw are both hooks, which are respectively used to connect with the folded-back part of the thermal insulation tie member and the ring of the second embedded part.

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