A cast-in-place foam concrete filled wall and its construction method

Abstract

The present application relates to a cast-in-place foamed concrete filling wall and a construction method thereof, which includes a bottom plate placed on the upper surface of a floor slab. Both ends of the bottom plate are abutted against existing walls. Demountable formworks are fixedly arranged on both sides of the upper surface of the bottom plate in the length direction. A plurality of positioning components for restricting the horizontal displacement of the demountable formworks are fixedly arranged on the bottom plate. A plurality of embedded columns are fixedly arranged on the floor slab. The top ends of the embedded columns penetrate through the bottom plate and extend upward. A first fixing component for fixing the bottom plate and the existing wall to each other is arranged between the bottom plate and the existing wall. A second fixing component for fixing the bottom plate and the embedded columns to each other is arranged between the bottom plate and the embedded columns. A foamed concrete layer is filled between the two demountable formworks. The present application has the effect of improving the stability of the cast-in-place foamed concrete filling wall.

Description

Technical Field

[0001] This application relates to the technical field of construction engineering, and particularly relates to a cast-in-place foamed concrete infill wall and a construction method thereof. Background Art

[0002] In construction engineering, the use of foamed concrete in cast-in-place walls is a major technological breakthrough, fundamentally solving the problems of building insulation, sound insulation, light weight, environmental protection, safety, and industrial production. It is an important direction for building energy conservation. Most foamed concrete infill walls are installed on floors, and both ends of the infill wall are connected to existing walls.

[0003] The existing Chinese patent with the publication number CN101858115A discloses a cast-in-place foamed concrete composite wall panel, which is composed of a space steel wire grid and non-removable cement composite formwork to form a space network structure, and thermal insulation materials are embedded and filled in the middle of the network structure; the non-removable cement composite formwork is located on both sides of the thermal insulation materials, and wire mesh sheets and inclined inserted wires are used to connect between the two non-removable formworks on both sides to form a space steel wire grid, forming an integral filling and load-bearing wall panel.

[0004] Regarding the above related technologies, the inventor believes that there are defects in the poor stability of the infill wall. Summary of the Invention

[0005] In order to improve the defect of poor stability of the infill wall, this application provides a cast-in-place foamed concrete infill wall and a construction method thereof.

[0006] In a first aspect, this application provides a cast-in-place foamed concrete infill wall, adopting the following technical solution:

[0007] A cast-in-place foamed concrete infill wall includes a bottom plate placed on the upper surface of the floor slab. Both ends of the bottom plate are abutted against the existing wall. On both sides of the bottom plate in the length direction of the upper surface, non-removable formworks are fixedly arranged. A number of positioning components for restricting the horizontal displacement of the non-removable formworks are fixedly arranged on the bottom plate. A number of embedded columns are fixedly arranged on the floor slab. The top ends of the embedded columns penetrate through the bottom plate and extend upward. A first fixing component for fixing the bottom plate and the existing wall to each other is arranged between the bottom plate and the existing wall. A second fixing component for fixing the bottom plate and the embedded columns to each other is arranged between the bottom plate and the embedded columns. A foamed concrete layer is filled between the two non-removable formworks.

[0008] By adopting the above technical solutions, first install the bottom plate on the floor slab, which can enable the foam concrete to be fixedly bonded to the upper surface of the bottom, reducing the probability of low bonding efficiency of the foam concrete caused by the low cleanliness of the upper surface of the floor slab. Then, use the first fixing component to fix the bottom plate to the existing wall. After the formwork without removal is installed on the bottom plate, the stability between the formwork without removal and the existing wall can be enhanced. Then, use the second fixing component to fix the bottom plate to the embedded column, making the connection between the bottom plate and the floor slab more firm, and further making the bottom of the cast-in-place foam concrete filling wall more stable. After the two formworks without removal are installed, pour the foam concrete into the formwork without removal, so that the foam concrete is fixedly bonded to the existing wall, the bottom plate and the embedded column respectively, greatly improving the stability of the filling wall and extending the service life of the cast-in-place foam concrete filling wall.

[0009] Optionally, the first fixing component includes a fixing plate and fixing bolts. The bottom end of the fixing plate is fixedly connected to the positions at both ends of the upper surface of the bottom plate in the length direction. The fixing bolts penetrate through the fixing plate and are threadedly connected to the existing wall.

[0010] By adopting the above technical solutions, first weld the bottom end of the fixing plate to the upper surface of the bottom plate, and then penetrate the fixing bolts through the fixing plate and threadedly tighten them in the existing wall, making the reinforcement effect between the bottom plate and the existing wall better.

[0011] Optionally, a support plate is fixedly connected to the side wall of the fixing plate close to the existing wall, and there is a distance between the fixing plate and the existing wall.

[0012] By adopting the above technical solutions, after the fixing bolts fix the fixing plate, the support plate is squeezed between the fixing plate and the existing wall. When pouring the foam concrete, the foam concrete can flow into the space between the fixing plate and the existing wall, enabling the bottom plate, the fixing plate, the support plate and the existing wall to be fixedly bonded, and improving the firmness between the bottom plate and the existing wall.

[0013] Optionally, the positioning component includes a positioning strip plate and positioning insertion plates. The positioning strip plate is fixed on the upper surface of the bottom plate, and the positioning insertion plates are respectively fixed at both ends of the upper surface of the positioning strip plate. Positioning grooves for inserting the positioning insertion plates are formed on the lower surface of the formwork without removal.

[0014] By adopting the above technical solutions, first weld the positioning strip plate with the positioning insertion plates on the upper surface of the bottom plate. When installing the formwork without removal, insert the positioning insertion plates into the positioning grooves, which can limit the displacement of the formwork without removal in the horizontal direction, reducing the probability of the formwork without removal being skewed and shaken, and thus improving the stability of the formwork without removal.

[0015] Optionally, the embedded column penetrates through the positioning strip board. Each group of positioning insertion boards is respectively located on both sides of an embedded column. A plurality of lengthened bolts are provided on the non-removable formwork. One end of the lengthened bolt sequentially penetrates through the outer wall of the non-removable formwork, the non-removable formwork and the positioning insertion board, and is then threadedly connected into the embedded column. The two ends of the lengthened bolts in the same embedded column abut against each other tightly.

[0016] By adopting the above technical solution, after the non-removable formwork is installed on the bottom plate, the lengthened bolts are sequentially penetrated through the non-removable formwork and the positioning insertion board and then threadedly tightened in the embedded column to limit the non-removable formwork and the bottom plate in the vertical direction. Every two lengthened bolts abut against each other tightly, and finally the stability of the non-removable formwork is greatly improved.

[0017] Optionally, connection holes are formed in the upper surfaces of the embedded columns, and the ends of the lengthened bolts are exposed to the outside through the connection holes.

[0018] By adopting the above technical solution, when pouring foamed concrete, the foamed concrete can flow into the connection holes, thereby fixedly bonding the two lengthened bolts and the embedded column, and further improving the stability of the cast-in-place foamed concrete filling wall.

[0019] Optionally, the second fixing assembly includes an extension plate, a force-bearing ring plate and a plurality of pressing bolts. The force-bearing ring plate is fixedly sleeved on the circumferential side wall of the embedded column. The lower surface of the force-bearing ring plate fits with the upper surface of the positioning strip board. The extension plate is sleeved on the embedded column, and the lower surface of the extension plate fits with the upper surface of the force-bearing ring plate. The pressing bolts sequentially penetrate through the extension plate, the force-bearing ring plate and the positioning strip board from top to bottom and are then threadedly tightened in the bottom plate.

[0020] By adopting the above technical solution, first sleeve the force-bearing ring plate on the embedded column and weld it. Then pass the extension plate through the embedded column and place it on the upper surface of the force-bearing ring plate. Threadedly connect the pressing bolts sequentially through the extension plate, the force-bearing ring plate and the positioning strip board in the bottom plate, so that the extension plate presses on the force-bearing ring plate, the force-bearing ring plate presses on the positioning strip board, and the positioning strip board presses on the bottom plate, improving the stability between the bottom plate and the embedded column.

[0021] Optionally, a plurality of pouring holes are formed in the upper surface of the bottom plate. The pouring holes are distributed at intervals from the embedded columns. The two ends in the length direction of the extension plate respectively extend above the pouring holes and continue to extend downward until they fit with the inner walls of the two adjacent pouring holes.

[0022] By adopting the above technical solution, when pouring foamed concrete, the foamed concrete can be directly fixedly bonded with the upper surface of the floor slab through the pouring holes, and fixedly bonding with the inner walls of the pouring holes can increase the fixed bonding area with the bottom plate in a changed direction. The two ends of the extension plate extend into the pouring holes. On the one hand, it can make the extension plate itself more stable relative to the embedded column. On the other hand, it can make the bonding of the foamed concrete to the extension plate more firm.

[0023] Optionally, among the two formwork without demolition, a number of reinforcing sleeves are fixedly connected to the inner wall of one formwork without demolition, and a number of reinforcing bolts are inserted outside the other formwork without demolition. The end of the reinforcing bolt passes through the formwork without demolition and is screwed tightly into the reinforcing sleeve. There is a distance between the end of the reinforcing bolt located inside the reinforcing sleeve and the inner wall of the formwork without demolition. A number of strengthening holes are provided on the circumferential outer wall of the reinforcing sleeve.

[0024] By adopting the above technical solution, after the formwork without demolition and the bottom plate are installed, the reinforcing bolt is passed through one formwork without demolition and screwed tightly into the reinforcing sleeve, making the two formworks without demolition more firm, enhancing the bonding stability between the formwork without demolition and the foamed concrete layer. When pouring the foamed concrete, the foamed concrete can fill the inside of the reinforcing sleeve through the strengthening holes, making the connection between the reinforcing bolt and the reinforcing sleeve more firm.

[0025] In a second aspect, the present application provides a construction method for a cast-in-place foamed concrete filled wall, adopting the following technical solution:

[0026] A construction method for a cast-in-place foamed concrete filled wall includes the following steps:

[0027] S1. First, clean the upper surface of the floor slab, the opposite side walls of the existing wall, and the outer wall of the embedded column to ensure the bonding effect of the foamed concrete;

[0028] S2. Place the bottom plate with a number of pouring holes on the floor slab, and make all the embedded columns penetrate the bottom plate. The end face in the length direction of the bottom plate abuts against the side wall of the existing wall, and first fix the bottom plate to the existing wall through the first fixing component;

[0029] S3. Fix the positioning component on the upper surface of the bottom plate, then fix the bottom plate to the embedded column through the second fixing component, and at the same time, the pressing bolt presses the positioning strip against the bottom plate;

[0030] S4. Install the formwork without demolition on the bottom plate, insert the positioning plug into the positioning groove, and then sequentially pass the lengthening bolt through the formwork without demolition and the positioning plug and thread it onto the embedded column;

[0031] S5. Pass the reinforcing bolt through the formwork without demolition and screw it tightly into the reinforcing sleeve;

[0032] S6. Pour foamed concrete between the two formworks without demolition to form a foamed concrete layer, cure it, and finally lay a decorative layer on the outer walls of the two formworks without demolition.

[0033] By adopting the above technical solution, when installing the bottom plate on the floor slab, the embedded column can preliminarily limit the bottom plate, facilitating the subsequent installation of the first fixing component and the second fixing component. First, fix the bottom plate to the existing wall through the first fixing component to make both ends of the bottom plate firmer. Then, fix the bottom plate to the embedded column through the second fixing component to make the connection between the bottom plate and the floor slab firmer, greatly improving the stability of the bottom of the cast-in-place foam concrete filled wall. Then, tighten the reinforcement bolt in the reinforcement sleeve to improve the stability of the middle and upper parts of the cast-in-place foam concrete filled wall. After the foam concrete is poured, the firmness between the two formwork without removal and the foam concrete layer is greatly improved, and the stability between the cast-in-place foam concrete filled wall and the floor slab and the existing wall is enhanced.

[0034] In summary, the present application includes at least one of the following beneficial technical effects:

[0035] 1. Fix the bottom plate to the existing wall through the first fixing component, and then fix the bottom plate to the embedded column through the second fixing component, making the bottom of the cast-in-place foam concrete filled wall more stable. The foam concrete is fixedly bonded to the existing wall, the bottom plate and the embedded column respectively, greatly improving the stability of the filled wall and extending the service life of the cast-in-place foam concrete filled wall;

[0036] 2. After the formwork without removal is installed on the bottom plate, sequentially pass the lengthened bolt through the formwork without removal and the positioning insertion plate and then thread-tighten it in the embedded column to limit the formwork without removal and the bottom plate in the vertical direction. Every two lengthened bolts are tightly abutted against each other, ultimately greatly improving the stability of the formwork without removal;

[0037] 3. Pass the reinforcement bolt through one of the formworks without removal and then thread-tighten it in the reinforcement sleeve to make the two formworks without removal more firm, enhancing the bonding stability between the formwork without removal and the foam concrete layer. The foam concrete can fill the inside of the reinforcement sleeve through the strengthening holes, making the connection between the reinforcement bolt and the reinforcement sleeve more firm. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 is a schematic structural diagram of an embodiment of the present application;

[0039] Figure 2 is a cross-sectional view after hiding the foam concrete layer in an embodiment of the present application;

[0040] Figure 3 is Figure 2 a partial enlarged schematic diagram of part A in

[0041] Figure 4 is a partial cross-sectional view for showing the positioning component;

[0042] Figure 5It is a partial cross-sectional view showing the second fixing component;

[0043] Figure 6 It is a partial cross-sectional view showing the reinforcement sleeve and the reinforcement bolt.

[0044] Description of reference numerals: 1, bottom plate; 11, pouring hole; 12, decorative plate; 2, formwork without removal; 22, extended bolt; 3, foamed concrete layer; 4, floor slab; 41, embedded column; 42, connection hole; 5, existing wall; 6, positioning component; 61, positioning strip plate; 62, positioning plug plate; 7, first fixing component; 71, fixing plate; 711, support plate; 72, fixing bolt; 8, second fixing component; 81, extension plate; 82, force-bearing ring plate; 83, pressing bolt; 9, reinforcement sleeve; 91, reinforcement bolt; 92, strengthening hole. Detailed implementation manners

[0045] The following further describes the present application in detail with reference to the Figures 1-6 accompanying drawings.

[0046] An embodiment of the present application discloses a cast-in-place foamed concrete filled wall.

[0047] Referring to Figure 1 and Figure 2 , the cast-in-place foamed concrete filled wall includes a bottom plate 1 horizontally placed on the upper surface of the floor slab 4. The two ends of the bottom plate 1 are abutted against the bottoms of the side walls of two existing walls 5. A plurality of vertically arranged embedded columns 41 are fixedly arranged in the floor slab 4. The top ends of the embedded columns 41 penetrate through the bottom plate 1 and extend upward. A plurality of pouring holes 11 spaced from the embedded columns 41 are formed in the upper surface of the bottom plate 1. Vertically arranged formworks without removal 2 are installed on both sides of the upper surface of the bottom plate 1 in the length direction. A first fixing component 7 is arranged between the bottom plate 1 and the existing wall 5. A second fixing component 8 is arranged between the bottom plate 1 and the embedded column 41. A foamed concrete layer 3 is poured between the two formworks without removal 2. Decorative plates 12 are fixedly laid on the outer walls of the two formworks without removal 2. The outer wall of the decorative plate 12 is flush with the side wall of the existing wall 5. The lower surface of the decorative plate 12 is fixed on the upper surface of the floor slab 4. The decorative plate 12 covers the bottom plate 1. First, the bottom plate 1 is passed through the embedded column 41 and placed on the floor slab 4. Then, the bottom plate 1 is fixed to the existing wall 5 through the first fixing component 7, and the bottom plate 1 is fixed to the embedded column 41 through the second fixing component 8. Finally, the formwork without removal 2 is installed on the bottom plate 1, and foamed concrete is poured into the formwork without removal 2 to form a foamed concrete layer 3, which ultimately greatly improves the stability of the cast-in-place foamed concrete filled wall.

[0048] As Figure 3As shown, the first fixing component 7 includes a fixing plate 71 and fixing bolts 72. There are two fixing plates 71 in total. The bottom ends of the fixing plates 71 are respectively fixedly connected to the upper surface of the bottom plate 1 near both ends. At the top of the side wall of the fixing plate 71 facing the existing wall 5, a support plate 711 is fixedly connected. There is a distance between the fixing plate 71 and the existing wall 5. The fixing bolts 72 pass through the fixing plate 71 and are screwed tightly into the existing wall 5. When pouring the foamed concrete, the foamed concrete flows into the gap between the fixing plate 71 and the existing wall 5, bonding and fixing the fixing plate 71, the support plate 711, the fixing bolts 72, the bottom plate 1 and the existing wall 5, improving the stability of the cast-in-place foamed concrete filling wall.

[0049] As Figure 4 shown, a positioning component 6 is provided between the bottom plate 1 and the formwork without removal 2. The positioning component 6 is used to limit the displacement of the formwork without removal 2 in the horizontal direction. The positioning component 6 includes a positioning strip plate 61 horizontally fixed on the upper surface of the bottom plate 1, and positioning plug plates 62 fixedly connected to both ends of the upper surface of the positioning strip plate 61. A plurality of positioning grooves for the positioning plug plates 62 to insert are opened on the lower surface of the formwork without removal 2. The embedded column 41 penetrates through the positioning strip plate 61. After the formwork without removal 2 is vertically installed on the bottom plate 1, the positioning plug plates 62 are inserted into the positioning grooves, which plays a preliminary fixing effect on the formwork without removal 2 and provides a guarantee for subsequent further fixing.

[0050] As Figure 4 shown, a plurality of lengthening bolts 22 are symmetrically provided on the outer walls of the two formworks without removal 2. The ends of the lengthening bolts 22 sequentially penetrate through the formwork without removal 2 and the positioning plug plates 62 and are screwed tightly into the embedded column 41. The ends of the symmetrically arranged lengthening bolts 22 are tightened inside the embedded column 41. A connecting hole 42 is opened on the top wall of the embedded column 41. The ends of the lengthening bolts 22 are exposed to the outside through the connecting hole 42. The lengthening bolts 22 can fix the formwork without removal 2 in the vertical direction, further improving the stability of the formwork without removal 2. When pouring the foamed concrete, the foamed concrete flows into the connecting hole 42 to fix the ends of the two lengthening bolts 22 and the embedded column 41, further improving the stability of the cast-in-place foamed concrete filling wall.

[0051] As Figure 5As shown in the figure, the second fixing component 8 includes an extension plate 81, a force-bearing ring plate 82, and a plurality of pressing bolts 83. The extension plate 81 is respectively sleeved on the embedded column 41. The force-bearing ring plate 82 is fixedly sleeved on the circumferential side wall of the embedded column 41. The lower surface of the force-bearing ring plate 82 is attached to the upper surface of the positioning strip plate 61. The lower surface of the extension plate 81 is attached to the upper surface of the force-bearing ring plate 82. The pressing bolts 83 sequentially penetrate the extension plate 81, the force-bearing ring plate 82, and the positioning strip plate 61 from top to bottom and are tightened in the bottom plate 1. The two ends of the extension plate 81 in the length direction extend above two adjacent pouring holes 11 and continue to extend downward until they are attached to the inner walls of the two pouring holes 11 close to each other. The extension plate 81 is pressed on the force-bearing ring plate 82, the force-bearing ring plate 82 is pressed on the positioning strip plate 61, and the positioning strip plate 61 is pressed on the bottom plate 1, making the connection between the bottom plate 1 and the embedded column 41 more firm, and making the connection between the positioning strip plate 61, the bottom plate 1, and the embedded column 41 more firm. The two ends of the extension plate 81 extend into the pouring holes 11. On the one hand, it can make the extension plate 81 itself more stable relative to the embedded column 41. On the other hand, it can make the bonding between the foam concrete and the extension plate 81 more firm.

[0052] As Figure 6 shown, among the two non-removable formworks 2, a plurality of horizontally arranged reinforcing sleeves 9 are fixedly connected to the inner wall of one of the non-removable formworks 2. The reinforcing sleeves 9 are respectively located in the upper middle part of the non-removable formwork 2 and there are multiple of them. A plurality of reinforcing bolts 91 are provided on the other non-removable formwork 2. The reinforcing bolts 91 horizontally penetrate the non-removable formwork 2 and are threadedly tightened in the reinforcing sleeves 9. There is a distance between the end of the reinforcing bolt 91 located inside the reinforcing sleeve 9 and the inner wall of the non-removable formwork 2. A plurality of strengthening holes 92 are opened at the top of the circumferential outer wall of the reinforcing sleeve 9. One of the strengthening holes 92 communicates with the position inside the reinforcing sleeve 9 where there is no reinforcing bolt 91. The reinforcing bolts 91 and the reinforcing sleeves 9 can press the upper middle part of the non-removable formwork 2 against each other. On the premise that the non-removable formwork 2 remains vertical, the bonding and fixing effect between the non-removable formwork 2 and the foam concrete layer 3 is strengthened, thereby improving the stability of the cast-in-place foam concrete filling wall.

[0053] The implementation principle of a cast-in-place foam concrete filled wall in an embodiment of this application is as follows: First, place the bottom plate 1 on the floor slab 4 after passing through the embedded column 41. First, weld the bottom end of the fixing plate 71 to the upper surface of the bottom plate 1, then pass the fixing bolt 72 through the fixing plate 71 and thread it tightly into the existing wall 5. Weld the positioning strip plate 61 with the positioning insert plate 62 to the upper surface of the bottom plate 1. Slip the stress ring plate 82 onto the embedded column 41 and weld it. Then pass the extension plate 81 through the embedded column 41 and place it on the upper surface of the stress ring plate 82. Pass the pressing bolt 83 through the extension plate 81, the stress ring plate 82, and the positioning strip plate 61 in sequence and thread it into the bottom plate 1, so that the extension plate 81 presses on the stress ring plate 82, the stress ring plate 82 presses on the positioning strip plate 61, and the positioning strip plate 61 presses on the bottom plate 1. Install the formwork without removal 2 on the bottom plate 1, so that the positioning insert plate 62 is inserted into the positioning groove. Pass the lengthening bolt 22 through the formwork without removal 2 and the positioning insert plate 62 in sequence and thread it tightly into the embedded column 41. Pass the reinforcing bolt 91 through the formwork without removal 2 and thread it into the reinforcing sleeve 9. Pour foam concrete between the two formworks without removal 2 to form a foam concrete layer 3. Before the foam concrete starts to set, further tighten the reinforcing bolt 91 in the reinforcing sleeve 9 to strengthen the bonding and fixing effect between the formwork without removal 2 and the foam concrete layer 3, and ultimately greatly improve the stability of the cast-in-place foam concrete filled wall.

[0054] An embodiment of this application also discloses a construction method for a cast-in-place foam concrete filled wall.

[0055] It includes the following steps:

[0056] S1. First, clean the upper surface of the floor slab 4, the opposite side walls of the existing wall 5, and the outer wall of the embedded column 41 to ensure the bonding effect of the foam concrete;

[0057] S2. Place the bottom plate 1 with a number of pouring holes 11 on the floor slab 4, and make all the embedded columns 41 pass through the bottom plate 1. The end surface in the length direction of the bottom plate 1 abuts against the side wall of the existing wall 5. Pass the fixing bolt 72 through the fixing plate 71 and thread it tightly onto the existing wall 5 to fix the bottom plate 1 to the existing wall 5;

[0058] S3. Fix the positioning assembly 6 on the upper surface of the bottom plate 1, then weld the stress ring plate 82 to the outer side wall of the embedded column 41. Pass the pressing bolt 83 through the extension plate 81 and the stress ring plate 82 in sequence and thread it tightly onto the bottom plate 1 to fix the bottom plate 1 to the embedded column 41. At the same time, the pressing bolt 83 presses the positioning strip plate 61 onto the bottom plate 1;

[0059] S4. Install the formwork without removal 2 on the bottom plate 1, so that the positioning insert plate 62 is inserted into the positioning groove. Then pass the lengthening bolt 22 through the formwork without removal 2 and the positioning insert plate 62 in sequence and thread it onto the embedded column 41;

[0060] S5. Pass the reinforcement bolt 91 through the formwork without demolition 2 and then thread-tighten it in the reinforcement sleeve 9.

[0061] S6. Pour foamed concrete between the two formworks without demolition 2 to form a foamed concrete layer 3, cure it, and finally lay a decorative layer on the outer walls of the two formworks without demolition 2.

[0062] The implementation principle of the construction method of a cast-in-place foamed concrete filling wall in an embodiment of this application is as follows: First, clean the upper surface of the floor slab 4 and the side walls opposite to the existing wall 5. Place the bottom plate 1 on the upper surface of the floor slab 4 through the embedded column 41, fix the bottom plate 1 to the existing wall 5 through the first fixing component 7, pass the positioning component 6 through the embedded column 41 and then fix it on the upper surface of the bottom plate 1, fix the bottom plate 1 to the embedded column 41 through the second fixing component 8, install the formwork without demolition 2 on the bottom plate 1 so that the positioning plug 62 is inserted into the positioning groove, pass the extended bolt 22 through the formwork without demolition 2 and the positioning plug 62 in sequence and then thread-tighten it in the embedded column 41, pass the reinforcement bolt 91 through the formwork without demolition 2 and then thread-connect it in the reinforcement sleeve 9, pour foamed concrete between the two formworks without demolition 2 to form a foamed concrete layer 3, and before the foamed concrete starts to set, further tighten the reinforcement bolt 91 in the reinforcement sleeve 9 to enhance the bonding and fixing effect between the formwork without demolition 2 and the foamed concrete layer 3, ultimately greatly improving the stability of the cast-in-place foamed concrete filling wall.

[0063] The embodiments of this specific implementation manner are all preferred embodiments of this application, and do not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A cast-in-place foam concrete infilled wall, characterized in that: It includes a bottom plate (1) placed on the upper surface of the floor slab (4). Both ends of the bottom plate (1) are in contact with the existing wall (5). Demountable formworks (2) are fixedly arranged on both sides of the upper surface of the bottom plate (1) in the length direction. A number of positioning components (6) for restricting the horizontal displacement of the demountable formworks (2) are fixedly arranged on the bottom plate (1). A number of embedded columns (41) are fixedly arranged on the floor slab (4). The top ends of the embedded columns (41) penetrate through the bottom plate (1) and extend upward. A first fixing component (7) for fixing the bottom plate (1) and the existing wall (5) to each other is arranged between the bottom plate (1) and the existing wall (5). A second fixing component (8) for fixing the bottom plate (1) and the embedded columns (41) to each other is arranged between the bottom plate (1) and the embedded columns (41). A foam concrete layer (3) is filled between the two demountable formworks (2); The positioning component (6) includes a positioning strip plate (61) and a positioning insertion plate (62). The positioning strip plate (61) is fixed on the upper surface of the bottom plate (1). The positioning insertion plates (62) are respectively fixed at both ends of the upper surface of the positioning strip plate (61). Positioning grooves for inserting the positioning insertion plates (62) are formed on the lower surface of the demountable formwork (2); The embedded column (41) penetrates through the positioning strip plate (61). Each group of positioning insertion plates (62) is respectively located on both sides of an embedded column (41). A number of lengthened bolts (22) are arranged on the demountable formwork (2). One end of the lengthened bolt (22) sequentially penetrates through the outer wall of the demountable formwork (2), the demountable formwork (2) and the positioning insertion plate (62) from the outside of the demountable formwork (2) and is threadedly connected in the embedded column (41). The ends of the two lengthened bolts (22) in the same embedded column (41) are in mutual abutment; Connection holes (42) are formed on the upper surfaces of the embedded columns (41). The ends of the lengthened bolts (22) are exposed to the outside through the connection holes (42); The second fixing component (8) includes an extension plate (81), a force-bearing ring plate (82) and a number of pressing bolts (83). The force-bearing ring plate (82) is fixedly sleeved on the circumferential side wall of the embedded column (41). The lower surface of the force-bearing ring plate (82) is in fit with the upper surface of the positioning strip plate (61). The extension plate (81) is sleeved on the embedded column (41), and the lower surface of the extension plate (81) is in fit with the upper surface of the force-bearing ring plate (82). The pressing bolts (83) sequentially penetrate through the extension plate (81), the force-bearing ring plate (82) and the positioning strip plate (61) from top to bottom and are threadedly tightened in the bottom plate (1); A number of pouring holes (11) are formed on the upper surface of the bottom plate (1). The pouring holes (11) and the embedded columns (41) are distributed at intervals. Both ends of the extension plate (81) in the length direction respectively extend above the pouring holes (11) and continue to extend downward until they are in fit with the inner walls of the two mutually adjacent pouring holes (11).

2. The cast-in-place foam concrete infilled wall according to claim 1, characterized in that: The first fixing component (7) includes a fixing plate (71) and a fixing bolt (72). The bottom end of the fixing plate (71) is fixedly connected to the positions at both ends of the upper surface of the bottom plate (1) in the length direction. The fixing bolt (72) penetrates through the fixing plate (71) and is threadedly connected in the existing wall (5).

3. The cast-in-place foam concrete infilled wall according to claim 2, characterized in that: A support plate (711) is fixedly connected to the side wall of the fixed plate (71) close to the existing wall (5), and a distance is left between the fixed plate (71) and the existing wall (5).

4. The cast-in-place foam concrete infilled wall according to claim 1, characterized in that: Among the two non-removable formworks (2), a plurality of reinforcing screw sleeves (9) are fixedly connected to the inner wall of one non-removable formwork (2), and a plurality of reinforcing bolts (91) are inserted outside the other non-removable formwork (2). The end of the reinforcing bolt (91) penetrates through the non-removable formwork (2) and is screwed tightly into the reinforcing screw sleeve (9). A distance is left between the end of the reinforcing bolt (91) located inside the reinforcing screw sleeve (9) and the inner wall of the non-removable formwork (2). A plurality of strengthening holes (92) are formed in the circumferential outer side wall of the reinforcing screw sleeve (9).

5. A construction method of a cast-in-place foam concrete infilled wall, characterized in that: A cast-in-place foam concrete filling wall applicable to the above-mentioned claim 4 includes the following steps: S1. First, clean the upper surface of the floor slab (4), the opposite side walls of the existing wall (5), and the outer wall of the embedded column (41) to ensure the bonding effect of the foam concrete; S2. Place the bottom plate (1) with a plurality of pouring holes (11) on the floor slab (4), and make all the embedded columns (41) penetrate through the bottom plate (1). The end surface in the length direction of the bottom plate (1) abuts against the side wall of the existing wall (5), and the bottom plate (1) is first fixed to the existing wall (5) through the first fixing component (7); S3. Fix the positioning component (6) on the upper surface of the bottom plate (1), and then fix the bottom plate (1) to the embedded column (41) through the second fixing component (8). At the same time, the pressing bolt (83) presses the positioning strip plate (61) against the bottom plate (1); S4. Install the non-removable formwork (2) on the bottom plate (1) so that the positioning plug board (62) is inserted into the positioning groove, and then sequentially penetrate the extension bolt (22) through the non-removable formwork (2) and the positioning plug board (62) and thread-connect it to the embedded column (41); S5. Penetrate the reinforcing bolt (91) through the non-removable formwork (2) and thread it tightly into the reinforcing screw sleeve (9); S6. Pour foam concrete between the two non-removable formworks (2) to form a foam concrete layer (3), cure it, and finally lay a decorative layer on the outer walls of the two non-removable formworks (2).

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