Formwork Support and Grouting Technology for the Upper Part of Infilled Wall

Abstract

The present invention relates to a formwork support and grouting process for the upper part of a infilled wall, which includes a formwork with a C-shaped cross-section, and a number of through holes are provided on the C-shaped formwork; the process includes: using the C-shaped formwork to support the formwork on both sides of the infilled wall, and the convex surface of the C-shaped formwork faces the grouting space. Insert a sleeve one into some of the through holes, insert a threaded tie rod into the sleeve one and fix it with a knob; insert a grouting pipe into the remaining through holes for grouting; after grouting, use a sleeve two to push out the grouting pipe; insert a threaded tie rod into the sleeve two and tighten it with a knob; remove the formwork after the slurry has solidified to the designed strength. The advantages are as follows. When using the C-shaped formwork to support the formwork, on the one hand, the convex part of the C-shaped formwork can enter the grouting space, making it more closely combined with the upper beam and slab and the lower infilled wall. After being tightened by the tie bolts, the occurrence of formwork displacement and slurry leakage can be effectively avoided. On the other hand, after using the C-shaped formwork to support the formwork and grouting, the two sides of the solidified pouring structure have a unified arc, which is convenient for later decoration wiring.

Description

Technical Field

[0001] The present invention relates to the field of construction engineering construction, and particularly relates to a formwork support and grouting process for the upper part of a infilled wall. Background Art

[0002] In a building system with a frame structure, the masonry wall is called an infilled wall. When closing the upper part between the infilled wall and the upper beam and slab, generally, inclined bricks are used for masonry or grouting. Compared with the method of using inclined bricks for masonry, grouting can fill smaller gaps, better ensure the strength and stability of the infilled wall, and also shorten the construction time.

[0003] The grouting process requires formwork support on both sides of the infilled wall. Since the formwork is located between the top of the infilled wall and the bottom of the beam, traditional wooden formwork support is relatively troublesome, and there are problems such as easy formwork displacement and slurry leakage after grouting.

[0004] Based on this, this case is hereby proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a formwork support and grouting process for the upper part of an infilled wall to solve the problems existing in the background art.

[0006] To achieve the above purpose, the technical solution of the present invention is as follows:

[0007] A formwork support and grouting process for the upper part of an infilled wall includes a formwork with a C-shaped cross-section. A number of through holes are opened in the middle of the C-shaped formwork along its length direction;

[0008] The formwork support and grouting process includes the following steps:

[0009] S1. Use the C-shaped formwork to support the formwork on both sides of the infilled wall, and the convex surface of the C-shaped formwork faces the grouting space at the upper part of the infilled wall. Insert a first sleeve into some of the through holes, insert a threaded tie rod into the first sleeve, and screw knobs at both ends of the threaded tie rod. Fix the two sides of the C-shaped formwork by tightening the knobs;

[0010] S2. Insert a grouting pipe into the remaining through holes, and grout into the grouting space between the two sides of the C-shaped formwork through the grouting pipe;

[0011] S3. After grouting, connect a connector to the open end of the grouting pipe. The end of the connector away from the grouting pipe is connected to a second sleeve. The grouting pipe and the second sleeve are on the same straight line, and the connector can pass through the through hole on the C-shaped formwork. Then, use the second sleeve to push out the grouting pipe and the connector;

[0012] S4. Insert a threaded tie rod into the second sleeve, and screw knobs at both ends of the threaded tie rod, and tighten the knobs;

[0013] S5. Demold after the slurry solidifies to the designed strength.

[0014] Further, the C-shaped formwork is made by cutting a PVC pipe in half.

[0015] Further, the first sleeve and the grouting pipe are arranged at intervals.

[0016] Further, the distance between two adjacent through holes on the C-shaped formwork is 1 meter.

[0017] Further, a rubber pad is filled between the knob and the C-shaped formwork.

[0018] Further, when grouting in the grouting pipe, the grouting pipe can be rotated.

[0019] Further, the connecting piece includes a plug shaft. A ring stop is provided in the middle of the plug shaft. One end of the plug shaft is used to insert into the grouting pipe, and the other end is used to insert into the second sleeve. The outer diameter of the ring stop is larger than the inner diameters of the grouting pipe and the second sleeve, and smaller than the diameter of the through hole on the C-shaped formwork.

[0020] The advantages of the present invention are as follows:

[0021] 1. Using the C-shaped formwork for formwork support, on the one hand, the convex part of the C-shaped formwork can enter the grouting space, making it more closely combined with the upper beam slab and the lower infilled wall. After being fastened by the tie bolts, the occurrence of formwork displacement and grout leakage can be effectively avoided. On the other hand, after grouting with the C-shaped formwork for formwork support, the two sides of the coagulated pouring structure have a unified radian, which is convenient for later decoration wiring;

[0022] 2. The C-shaped formwork can be made by cutting a PVC pipe in half, with low cost and convenient drilling. Different diameters of PVC pipes can be used, and the C-shaped concave structure can adapt to grouting spaces of different heights. At the same time, due to the smooth inner and outer walls of the PVC pipe, after construction, the coagulated pouring structure is smooth and beautiful;

[0023] 3. After the grouting pipe completes the grouting task, it can be replaced by the sleeve, which can ensure grouting and at the same time ensure the tie strength of the two formworks during curing;

[0024] 4. During the grouting process, the grouting pipe can be rotated to ensure uniform grouting without leaving voids. Description of the Drawings

[0025] Figure 1 It is an assembly schematic diagram of the C-shaped formwork and the threaded tie rod in the embodiment;

[0026] Figure 2 It is Figure 1 The enlarged schematic diagram of part A;

[0027] Figure 3 It is an assembly schematic diagram of the C-shaped formwork and the grouting pipe in the embodiment;

[0028] Figure 4 It isFigure 3 Schematic enlarged view of part B in

[0029] Figure 5 Schematic diagram of the cooperation of the C-type template, grouting pipe, connector and casing in the embodiment;

[0030] Figure 6 is Figure 5 Schematic enlarged view of part C in

[0031] Figure 7 Schematic diagram of the cooperation of the grouting pipe, connector and casing in the embodiment

[0032] Figure 8 Schematic process diagram of the upper formwork grouting process for the infill wall;

[0033] Label description

[0034] 1 - C-type template; 2 - first casing; 3 - second casing; 4 - grouting space; 5 - grouting pipe; 6 - threaded tie rod; 7 - knob; 8 - rubber pad; 9 - connector, 901 - insertion shaft, 902 - ring stop; 10 - infill wall; 11 - concrete structural beam and slab. Specific implementation manner

[0035] The following further describes the present invention in detail with reference to the embodiments. It should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. in the text is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0036] This embodiment provides an upper formwork grouting device for an infill wall, as Figure 1 shown, including C-type templates 1 symmetrically arranged on both sides of the grouting space 4 above the infill wall 10 and having a C-shaped cross-section. A plurality of through holes are formed in the middle of the C-type template 1 along its length direction, and the convex part of the C-type template 1 faces the grouting space. As Figure 2 shown, a first casing 2 is inserted into a part of the through holes of the C-type template 1 (the outer diameter of the first casing is smaller than the diameter of the through hole, inserted from one C-type template 1 and passed out from the other C-type template 1). A threaded tie rod 6 is inserted into the first casing 2, and knobs 7 are screwed onto both ends of the threaded tie rod 6. The two C-type templates 1 are fixed by tightening the knobs 7; as Figure 3 and Figure 4As shown, grouting pipes 5 are inserted into the remaining through holes (the outer diameter of the grouting pipes is smaller than the diameter of the through holes, inserted through one of the C-shaped templates 1 and exiting from the other C-shaped template 1), and grouting is carried out into the grouting space 4 between the two C-shaped templates 1 through the grouting pipes 5. The grouting pipes 5 in this embodiment are as Figure 4 shown, which are hollow pipes with one end closed and one end open, and there are several slurry outlet holes on the pipe wall. To ensure the tying strength of the two C-shaped templates 1 after grouting, this embodiment also includes a connecting piece 9 and a sleeve two 3 (the sleeve one and the sleeve two have the same structure, and here only for distinguishing the two kinds of sleeves before and after, so digital markings are used), as Figure 7 shown, the connecting piece 9 includes a plug shaft 901, and a ring stop 902 is provided in the middle of the plug shaft 901. One end of the plug shaft 901 is used to insert into the grouting pipe 5, and the other end is used to insert into the sleeve two 3. The outer diameter of the ring stop 902 is equal to the outer diameters of the grouting pipe 5 and the sleeve two 3, so that the connecting piece 9 can pass through the through hole.

[0037] The formwork grouting process of the above-mentioned formwork grouting device for the upper part of the infill wall is as Figure 8 shown, and includes the following steps:

[0038] S1. As Figure 1 and Figure 2 shown, formwork is supported on both sides of the infill wall 10 with C-shaped templates 1, and the convex surfaces of the C-shaped templates 1 face the upper grouting space 4 of the infill wall 10. Sleeve one 2 is inserted into some of the through holes, a threaded tie rod 6 is inserted into the sleeve one 2, and knobs 7 are screwed onto both ends of the threaded tie rod 6. The two C-shaped templates 1 are fixed by tightening the knobs 7;

[0039] S2. As Figure 3 and Figure 4 shown, grouting pipes 5 are inserted into the remaining through holes, and grouting is carried out into the grouting space 4 between the two C-shaped templates 1 through the grouting pipes 5. During the grouting process, the grouting pipes 5 can be rotated to ensure uniform grouting without leaving gaps;

[0040] S3. As Figure 5 , Figure 6 and Figure 7 shown, after grouting, a connecting piece 9 is connected to the open end of the grouting pipe 5, and the end of the connecting piece 9 far from the grouting pipe 5 is connected to the sleeve two 3. The grouting pipe 5 and the sleeve two 3 are on the same straight line. Then, the grouting pipe 5 and the connecting piece 9 are pushed out by using the sleeve two 3, and the sleeve two 3 remains between the two C-shaped templates;

[0041] S4. Insert a threaded tie rod 6 into the sleeve two 3, and screw knobs 7 onto both ends of the threaded tie rod 6, and tighten the knobs 7. The sleeve two 3 replaces the grouting pipe 5 to ensure grouting and also ensure the tying strength of the two templates during curing;

[0042] S5. Demold after the slurry has solidified to the designed strength.

[0043] Use one C-shaped formwork 1 for formwork erection. On the one hand, the convex part of the C-shaped formwork 1 can enter the grouting space 4, making its combination with the upper beam and slab and the lower infilled wall 10 closer. After being fastened by tie bolts, the occurrence of formwork displacement and slurry leakage can be effectively avoided. On the other hand, after grouting with the C-shaped formwork 1 for formwork erection, the two sides of the solidified pouring structure have a unified radian, which is convenient for later decoration wiring. Preferably, the C-shaped formwork 1 is formed by cutting a PVC pipe in half. It has low cost and is convenient for drilling. Different diameters of PVC pipes can be used, and the C-shaped structure can be used to adapt to grouting spaces of different heights. At the same time, due to the smooth inner and outer walls of the PVC pipe, after construction, the solidified pouring structure is smooth and beautiful.

[0044] Furthermore, in the above process, the first casing 2 and the grouting pipe 5 are arranged at intervals, and the distance between two adjacent through holes on the C-shaped formwork 1 is 1 meter.

[0045] To ensure the locking strength of the knob 7, a rubber pad 8 is filled between the knob 7 and the C-shaped formwork 1 in this embodiment.

[0046] The above embodiments are only used to explain the concept of the present invention, rather than limiting the protection scope of the rights of the present invention. Any non-substantial modification of the present invention using this concept shall fall within the protection scope of the present invention.

Claims

1. A formwork support and grouting process for the upper part of a infilled wall, characterized in that, It includes a template with a C-shaped cross-section, and a number of through holes are provided in the middle of the C-shaped template along its length direction; The formwork grouting process includes the following steps: S1. Use C-shaped templates to formwork on both sides of the infill wall, and the convex surface of the C-shaped template faces the upper grouting space of the infill wall. Insert sleeve one into some of the through holes, insert a threaded tie rod into the sleeve one, and screw knobs at both ends of the threaded tie rod. Fix the C-shaped templates on both sides by tightening the knobs; S2. Insert grouting pipes into the remaining through holes, and grout into the grouting space between the C-shaped templates on both sides through the grouting pipes; S3. After grouting, connect a connector to the open end of the grouting pipe. One end of the connector away from the grouting pipe is connected to sleeve two. The grouting pipe and sleeve two are on the same straight line, and the connector can pass through the through hole on the C-shaped template. Then use sleeve two to push out the grouting pipe and the connector; S4. Insert a threaded tie rod into sleeve two, and screw knobs at both ends of the threaded tie rod and tighten the knobs; S5. Remove the formwork after the slurry has solidified to the designed strength.

2. The upper formwork support and grouting process for the infilled wall according to claim 1, characterized in that, The C-shaped template is formed by cutting a PVC pipe in half.

3. The filling wall upper formwork grouting process according to claim 1, characterized in that The sleeve one and the grouting pipe are arranged at intervals.

4. The grouting process for upper formwork support of a filled wall according to claim 3, characterized in that, The distance between two adjacent through holes on the C-shaped template is 1 meter.

5. A formwork support and grouting process for the upper part of a infilled wall as claimed in claim 1, characterized in that, A rubber pad is filled between the knob and the C-shaped template.

6. The grouting process for upper formwork support of a filled wall according to claim 1, wherein, When grouting in the grouting pipe, the grouting pipe can be rotated.

7. A formwork support and grouting process for the upper part of a infilled wall according to claim 1, characterized in that, The connector includes a plug shaft. A ring stop is provided in the middle of the plug shaft. One end of the plug shaft is used to insert into the grouting pipe, and the other end is used to insert into sleeve two. The outer diameter of the ring stop is larger than the inner diameters of the grouting pipe and sleeve two, and smaller than the diameter of the through hole on the C-shaped template.

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