A precast wall installation formwork and its construction method

Abstract

This invention provides a precast wall installation formwork and its construction method, belonging to the field of building construction. The technical solution includes a formwork mold plate and installation components that cooperate with the formwork mold plate. The formwork mold plate includes a panel with a frame at its edge, reinforcing steel ribs on the inner side of the frame, a level bubble at the center of the panel, and several through-holes on the panel corresponding to the positions of the precast wall reinforcement bars. The advantages of this invention are: simple structure, convenient installation, and effective solutions to the problems of high labor consumption, poor construction quality, and difficulty in effectively preventing grouting pressure from damaging the surrounding mortar during grouting, resulting in poor grouting quality.

Description

Technical Field

[0001] This invention relates to the field of building construction, and in particular to a precast wall installation formwork and its construction method. Background Technology

[0002] The current precast wall construction process involves hoisting the wall onto the poured floor slab, using shims to control the elevation of the wall (if the floor slab is uneven). After the wall panel is installed, the gap (3-5cm) between the wall panel and the floor slab needs to be sealed with grout (sealing process). Alternatively, grout can be used to separate the grouting ports before the precast wall is installed (compartmental process). After the sealing or compartmentalization process is completed, grouting is performed at the grouting ports. The current grouting process requires workers to bend over and squat for long periods of time, which is physically demanding. At the same time, it is difficult to control the quality during the operation. Later, grout leakage often occurs, and the grout cannot be filled completely. After grouting, the grout needs to be removed, resulting in waste. Summary of the Invention

[0003] The purpose of this invention is to provide a precast wall installation formwork and its construction method that is simple in structure, easy to install, and effectively solves the problems of high labor consumption, poor construction quality, and difficulty in effectively preventing the grouting pressure from damaging the mortar of the precast wall base during the enclosure construction, resulting in poor grouting quality.

[0004] This invention is achieved through the following measures:

[0005] A precast wall installation formwork, characterized in that it includes a formwork mold plate and an installation assembly that cooperates with the formwork mold plate;

[0006] The hanging mold plate includes a panel, a frame is provided at the edge of the panel, reinforcing steel ribs are provided on the inner side of the frame, and a level bubble is provided at the center of the panel;

[0007] The panel has several through mounting holes corresponding to the positions of the precast wall reinforcement bars;

[0008] The installation assembly includes a plurality of threaded cylinders disposed on the panel and communicating with each of the mounting holes. An installation sleeve is disposed around the threaded cylinder. The precast wall reinforcement passes through the installation sleeve and the threaded cylinder. A through-hole limiting threaded hole is opened on the side wall of the installation sleeve. A limiting bolt is disposed in the limiting threaded hole. The end of the limiting bolt passes through the limiting threaded hole and abuts against the precast wall reinforcement.

[0009] The number of mounting holes is determined based on the number of precast wall reinforcement bars.

[0010] The back of the suspended formwork plate (the side that does not contact the concrete) is provided with reinforcing steel ribs. The reinforcing steel ribs are used to enhance the rigidity of the suspended formwork plate and reduce deformation.

[0011] The invention also has the following specific features:

[0012] The outer wall of the threaded cylinder and the inner wall of the mounting sleeve are provided with matching threads.

[0013] An adjustable horizontal steel bar is provided below the panel, and the adjustable horizontal steel bar is tied or welded to the reserved steel bar of the precast wall.

[0014] The construction method includes the following steps:

[0015] S1. During construction, first install the adjusting horizontal steel bars according to the predetermined position, then pass the precast wall steel bars through the corresponding mounting holes and the threaded cylinder on the panel, and place the hanging formwork plate on the adjusting horizontal steel bars;

[0016] S2. Insert the installation sleeve through the precast wall reinforcement and install it on the threaded cylinder. Finely adjust the level of the hanging mold plate using a bubble level. Tighten the limit bolts to fix the hanging mold plate.

[0017] S3. After pouring the concrete for the slab, remove the formwork plate. The formwork plate forms a groove on the floor slab surface. Pour pre-laid grout into the groove. After installing the precast wall in the designated position, the pre-laid grout will be squeezed out from the bottom of the precast wall to seal the gap between the groove and the precast wall. Then proceed to the next step of the precast wall construction.

[0018] The beneficial effects of this invention are: simple structure and convenient installation, effectively solving the problems of high labor consumption, poor construction quality, and difficulty in effectively preventing the grouting pressure from damaging the surrounding mortar during the enclosure construction, resulting in poor grouting quality. Attached Figure Description

[0019] Figure 1 This is a structural diagram of the present invention in use.

[0020] Figure 2 This is a schematic diagram of the structure of the lifting mold plate in this invention.

[0021] Figure 3 This is a schematic diagram of the structure of the lifting mold plate in this invention.

[0022] The attached figures are labeled as follows: 1. Precast wall; 2. Hanging formwork plate; 201. Panel; 202. Frame; 203. Mounting hole; 204. Reinforcing steel rib; 205. Level bubble; 3. Precast wall reinforcement; 4. Adjusting horizontal reinforcement; 5. Threaded cylinder; 6. Mounting sleeve; 601. Limiting threaded hole; 7. Limiting bolt. Detailed Implementation

[0023] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to describe the solution.

[0024] See Figure 1-3 A precast wall installation formwork includes a formwork mold plate 2 and an installation assembly that cooperates with the formwork mold plate 2;

[0025] The hanging mold plate 2 includes a panel 201, a frame 202 is provided at the edge of the panel 201, a reinforcing steel rib 204 is provided on the inner side of the frame 202, and a level bubble 205 is provided at the center of the panel 201.

[0026] Several through mounting holes 203 are provided on the panel 201 corresponding to the positions of the reinforcing bars 3 of the precast wall 1;

[0027] The mounting assembly includes several threaded cylinders 5 disposed on the panel 201 and connected to the mounting holes 203 one by one. The threaded cylinders 5 are surrounded by mounting sleeves 6. The precast wall steel bars 3 pass through the mounting sleeves 6 and the threaded cylinders 5. The side wall of the mounting sleeves 6 is provided with a through limiting threaded hole 601. A limiting bolt 7 is provided in the limiting threaded hole 601. The end of the limiting bolt 7 passes through the limiting threaded hole 601 and abuts against the steel bars 3 of the precast wall 1.

[0028] The number of mounting holes 203 is determined based on the number of precast wall steel reinforcement 3 positions;

[0029] The back of the hanging formwork plate 2 (the side that does not contact the concrete) is provided with a formwork reinforcing steel rib 204. The reinforcing steel rib 204 is used to enhance the rigidity of the hanging formwork plate 2 and reduce deformation.

[0030] The outer wall of the threaded cylinder 5 and the inner wall of the mounting sleeve 6 are provided with matching threads.

[0031] An adjusting horizontal steel bar 4 is provided below the panel 201. The adjusting horizontal steel bar 4 is tied or welded to the reserved steel bar 3 of the precast wall 1.

[0032] The construction method includes the following steps:

[0033] S1. During construction, first install the adjusting horizontal steel bar 4 according to the predetermined position, then pass the precast wall steel bar 3 through the corresponding mounting hole 203 and threaded cylinder 5 on the panel 201, and place the hanging formwork plate 2 on the adjusting horizontal steel bar 4.

[0034] S2. Insert the installation sleeve 6 through the precast wall steel bar 3 and install it on the threaded cylinder 5. Finely adjust the level of the hanging mold plate 2 using a bubble level. Tighten the limit bolt 7 to fix the hanging mold plate 2.

[0035] S3. After pouring the concrete for the slab surface, remove the formwork plate 2. The formwork plate 2 forms a groove on the floor slab surface. Pour the pre-laid grout into the groove. After installing the precast wall 1 in the designated position, the pre-laid grout will be squeezed out from the bottom of the precast wall 1 to seal the gap between the groove and the precast wall 1. Then proceed with the next step of the construction of the precast wall 1.

[0036] The technical features of this invention not described can be implemented by or using existing technology, and will not be repeated here. Of course, the above description is not a limitation of this invention, and this invention is not limited to the examples above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this invention should also be within the protection scope of this invention.

Claims

1. A precast wall installation hoisting form, characterized in that, Includes a lifting mold plate and mounting components that mate with the lifting mold plate; The hanging mold plate includes a panel, a frame is provided at the edge of the panel, reinforcing steel ribs are provided on the inner side of the frame, and a level bubble is provided at the center of the panel; The panel has several through mounting holes corresponding to the positions of the precast wall reinforcement bars; The installation assembly includes a plurality of threaded cylinders disposed on the panel and communicating with each of the mounting holes. An installation sleeve is disposed around the threaded cylinder. The precast wall reinforcement passes through the installation sleeve and the threaded cylinder. A through-hole limiting threaded hole is opened on the side wall of the installation sleeve. A limiting bolt is disposed in the limiting threaded hole. The end of the limiting bolt passes through the limiting threaded hole and abuts against the precast wall reinforcement. The formwork plate forms a formwork groove on the floor slab surface.

2. The precast wall installation formwork according to claim 1, characterized in that, The outer wall of the threaded cylinder and the inner wall of the mounting sleeve are provided with matching threads.

3. The precast wall installation formwork according to claim 2, characterized in that, An adjustable horizontal steel bar is provided below the panel, and the adjustable horizontal steel bar is tied or welded to the reserved steel bar of the precast wall.

4. The construction method for installing suspended formwork for precast walls according to claim 3, characterized in that, The construction method includes the following steps: S1. During construction, first install the adjusting horizontal steel bars according to the predetermined position, then pass the precast wall steel bars through the corresponding mounting holes and the threaded cylinder on the panel, and place the hanging formwork plate on the adjusting horizontal steel bars; S2. Insert the installation sleeve through the precast wall reinforcement and install it on the threaded cylinder. Finely adjust the level of the hanging mold plate using a bubble level. Tighten the limit bolts to fix the hanging mold plate. S3. After pouring the concrete for the slab, remove the formwork plate. The formwork plate forms a groove on the floor slab surface. Pour pre-laid grout into the groove. After installing the precast wall in the designated position, the pre-laid grout will be squeezed out from the bottom of the precast wall to seal the gap between the groove and the precast wall. Then proceed to the next step of the precast wall construction.

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