A form supporting device for a side wall construction joint and a construction method

Abstract

The application provides a formwork support device and a construction method for a side wall construction joint, which comprises a profiled comb plate, profiled strips on both sides of the profiled comb plate are controlled to stretch and contract through adjusting assemblies, a plurality of profiled comb plates are connected in parallel and slidingly in a comb plate box body, when one profiled comb plate touches a steel bar to form a blank area on the corresponding side of the profiled comb plate, the profiled comb plates on the adjacent sides of the profiled comb plate adjust the corresponding profiled strips to stretch out to block the blank area through the adjusting assemblies, and a fixer is fixed on the end of the profiled comb plate after passing through the steel bar and is fixed on the steel bar through a hinge rod. The application can adapt to most construction joint structures, avoid the situation that a remaining gap leads to slurry leakage, reduces the integrity of the main body and the stability of the main structure, and the device can accelerate the construction process, improve the bonding strength of the concrete and improve the construction efficiency.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a formwork support device and construction method for side wall construction joints. Background Technology

[0002] In recent years, with the rapid development of my country's housing construction industry, the quality of concrete pouring has become a key focus of quality control. According to the national standard, Article 2.0.10 of the Code for Construction of Concrete Structures defines a construction joint as a concrete strip of a certain width, pre-reserved in beams, slabs (including foundation slabs), walls, and other structures to accommodate changes in ambient temperature, concrete shrinkage, and uneven structural settlement, which is poured after a certain period of time. Investigations have revealed that construction joints are prone to water leakage, and the erection of wooden formwork is difficult, affecting subsequent wet joint and foundation slab construction. Construction joints are designed to prevent harmful cracks that may occur in cast-in-place reinforced concrete structures due to uneven shrinkage or settlement. Therefore, it is necessary to improve the quality of the formwork support to ensure the construction of construction joints. However, since construction joint formwork is usually custom-made using wooden formwork, the wooden formwork is prone to deformation over long-term use, and there are discrepancies in the spacing of the reinforcing bars. This makes the formwork support process difficult, requiring workers to cut the wooden formwork according to the reinforcing bar spacing and then erect and fix each wooden formwork individually.

[0003] In traditional construction methods, wooden comb-shaped supports are used to secure the formwork at the construction joints of side walls. These supports are inserted into the reinforcing steel bars of the foundation slab to control the pouring quality at the side wall construction joints. The wooden comb-shaped supports are primarily used to stop grout leakage and prevent steel bar displacement during concrete pouring. However, due to the large number of wooden comb-shaped supports, limited installation space, long construction time, and high labor intensity, the formwork support quality at the side wall construction joints often fails to meet standards, leading to potential water leakage problems. This affects subsequent wet joint and foundation slab construction, directly impacting the overall construction quality. Construction workers are forced to work at high intensity, high frequency, and low efficiency, increasing the difficulty of later construction phases. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a formwork support device and construction method for side wall construction joints.

[0005] The specific technical solution is as follows:

[0006] A formwork support device for construction joints in side walls, comprising:

[0007] A shaping comb plate, wherein the shaping strips on both sides of the shaping comb plate are controlled to extend and retract by an adjustment component;

[0008] The comb plate box body contains multiple shaped comb plates that are slidably connected side-by-side. When one of the shaped comb plates touches a reinforcing bar, creating a blank area on its corresponding side, the shaped comb plates on adjacent sides of that plate are adjusted by an adjustment component to extend their corresponding shaping strips and seal the blank area.

[0009] The fastener is fixedly sleeved at the end of the shaped comb plate after passing through the reinforcing bar, and is fixed to the reinforcing bar by a hinge rod.

[0010] Optionally, the shaping comb plate includes a comb plate sandwich shaping device and an upper comb plate shaping device and a lower comb plate shaping device respectively fixed on both sides of the comb plate sandwich shaping device. The upper comb plate shaping device and the lower comb plate shaping device are symmetrically arranged about the center of the comb plate sandwich shaping device, and both the upper comb plate shaping device and the lower comb plate shaping device include a strip-shaped shell, and a plurality of shaping strips are inserted in the width direction of the strip-shaped shell.

[0011] Optionally, the adjustment assembly includes a fixed rod, a pull rod, a base, a connecting rod, and an adjusting screw; the pull rod is rotatably connected to the strip-shaped housing and the fixed rod respectively via hinges, and the connecting rod is hinged to one end of the pull rod; the base is installed at one end of the fixed rod, the adjusting screw passes through the base and is threadedly connected to the base, and the other end of the connecting rod is hinged to the end of the adjusting screw; each of the shaping strips is connected to the fixed rod via a compression spring; rotating the adjusting screw can cause the strip-shaped housing to drive the shaping device to extend out of the comb plate interlayer shaping device.

[0012] Optionally, the strip-shaped housing has multiple sliding grooves along its width direction for sliding multiple shaping strips.

[0013] Optionally, the adjusting screw is provided with a dust cover on its outer side.

[0014] Optionally, the hinge is fixed to the pull rod by a rotating screw.

[0015] Optionally, the two adjacent comb plate boxes are snapped together.

[0016] A construction method for a formwork support device at a construction joint of a side wall includes the following steps:

[0017] S1. First, the formwork support device for the side wall construction joint can be installed in advance to the designated position, and the forming comb plate that touches the reinforcing bar below can be moved upward.

[0018] S2. The formwork support device for side wall construction joints is assembled by connecting the comb board box body through the box body connecting groove according to the required length.

[0019] S3. Adjust the components to extend the shaping comb plate forward and backward to reach the sealing distance;

[0020] S4. Before pouring concrete at the construction joint of the side wall, a release agent should be applied to the shaped comb board;

[0021] S5. When the pouring is completed, wait until the concrete is about to cure before testing and accepting it. After the acceptance is qualified, the formwork support device used at the construction joint of the side wall is removed and cleaned so that it can be used for construction at the construction joint of the next side wall.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] This invention utilizes a movable, left-right shaping plate technology, with the fixing device installed at the end of the comb plate for simple and quick installation, achieving the functions of supporting formwork to stop grout leakage. By using an adjustable, telescopic sealing strip technology, it solves the problem of blind spots in the shaping plate sealing, significantly increasing the sealing area of ​​the device. The use of adjusting screws and hinged connecting rods solves the power problem of the lateral sealing shaping strips during use, improving construction efficiency. The use of connecting groove technology solves the problem of varying heights of sidewall construction joints during construction, improving the device's versatility. This device, using several equally spaced, movable, left-right shaping comb plates for simple and quick installation, can adapt to most construction joint structures, avoiding gaps that could lead to grout leakage, reduced integrity of the main structure, and compromised structural stability. Furthermore, this device accelerates the construction process, improves concrete bonding strength, increases construction efficiency, and avoids the environmental pollution caused by sawdust generated during the production of wooden comb plates. It has a wide range of applications and can replace most formwork support methods at construction joints in building construction. Attached Figure Description

[0024] Figure 1 This is a front view structural diagram of the shaped comb plate in the formwork support device for side wall construction joints provided in an embodiment of the present invention;

[0025] Figure 2 This is a rear view structural schematic diagram of the shaped comb plate in the formwork support device for side wall construction joints provided in an embodiment of the present invention;

[0026] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0027] Figure 4 for Figure 2 Schematic diagram of the cross-sectional structure at point BB;

[0028] Figure 5 This is a schematic diagram of the upper comb plate forming device (lower comb plate forming device) in the formwork support device for side wall construction joints provided in an embodiment of the present invention;

[0029] Figure 6 This is a schematic diagram of the protruding shaping strip in the upper shaping device (lower shaping device) of the comb plate in the formwork support device for side wall construction joints provided in an embodiment of the present invention;

[0030] Figure 7 This is a schematic diagram of the compression spring in the formwork support device for side wall construction joints provided in an embodiment of the present invention;

[0031] Figure 8 This is a schematic diagram of the structure of the formwork support device for side wall construction joints provided in an embodiment of the present invention, showing the adjustment screw during working conditions.

[0032] Figure 9 This is a schematic diagram of the overall connection of the formwork support device for side wall construction joints provided in an embodiment of the present invention;

[0033] Figure 10 This is a top view of the structure of the formwork support device for side wall construction joints provided in an embodiment of the present invention, showing the connection between the fixing device and the reinforcing bar.

[0034] In the diagram: 1. Shaped comb plate; 10. Shaped strip; 11. Comb plate sandwich shaped cutter; 12. Upper comb plate shaped cutter; 13. Lower comb plate shaped cutter; 14. Strip-shaped housing; 140. Slide groove; 2. Adjustment assembly; 21. Fixing rod; 211. Compression spring; 22. Pull rod; 221. Hinge; 222. Rotating screw; 23. Base; 24. Connecting rod; 25. Adjusting screw; 251. Dust cover; 3. Comb plate box body; 31. Box body connecting groove; 4. Fixer; 41. Hinge rod; 42. Hinge connector; 43. Ring buckle. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0037] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the scope of the invention.

[0038] The formwork support device for side wall construction joints provided in this invention refers to... Figures 1-10 ,include:

[0039] The shaping comb plate 1 and the shaping strips 10 on both sides of the shaping comb plate 1 are controlled to extend and retract by the corresponding shaping strips 10 through the adjusting component 2;

[0040] The comb plate box body 3 contains multiple shaped comb plates 1 arranged side-by-side and slidably connected within it. When a shaped comb plate 1 touches a reinforcing bar, creating a blank area on its side, the shaped comb plates 1 on adjacent sides of that plate are adjusted by the adjusting assembly 2 to extend their corresponding shaping strips 10 to block the blank area.

[0041] Fixture 4 is fixedly sleeved at the end of the shaped comb plate 1 after passing through the reinforcing bar, and is fixed to the reinforcing bar by hinge rod 221.

[0042] In this embodiment, the formwork support device for the side wall construction joint consists of several equally spaced, movable comb plates 1, with adjacent comb plate boxes 3 interlocked. The length of the device can be adjusted according to the actual working conditions at the construction site, improving its versatility. During construction, the formwork support device for the side wall construction joint can be pre-installed at the designated location. The comb plates 1 that touch the reinforcing bars on the side move horizontally in the opposite direction. The blank area on the side of the comb plate 1 is sealed by the corresponding shaping strips 10 adjusted by the adjacent comb plates 1 on both sides through the adjustment component 2. In addition, the device is fixed by the fixing device 4, which is fixed to the end of the comb plate 1 after passing through the reinforcing bars, effectively preventing displacement. Therefore, the device can be adjusted up and down according to the position of the reinforcing bars on site to achieve the effect of stopping grout and preventing grout leakage. This solves the problem of sealing the formwork between the reinforcing bars at the side wall construction joint on the construction site, improves the sealing quality of the side wall construction joint, lays a good foundation for the subsequent waterproofing construction, and greatly improves the construction efficiency.

[0043] Reference Figures 1-4 The shaping comb plate 1 includes a comb plate sandwich shaping device 11 and an upper comb plate shaping device 12 and a lower comb plate shaping device 13 respectively fixed on both sides of the comb plate sandwich shaping device 11. The upper comb plate shaping device 12 and the lower comb plate shaping device 13 are symmetrically arranged about the center of the comb plate sandwich shaping device 11. Both the upper comb plate shaping device 12 and the lower comb plate shaping device 13 include a strip-shaped shell 14, and a number of shaping strips 10 are inserted in the width direction of the strip-shaped shell 14.

[0044] Reference Figures 5-7The adjusting assembly 2 includes a fixed rod 21, a pull rod 22, a base 23, a connecting rod 24, and an adjusting screw 25. The pull rod 22 is rotatably connected to the strip-shaped housing 14 and the fixed rod 21 via hinges 221, and the hinges 221 are fixed to the pull rod 22 by rotating screws 222. The connecting rod 24 is hinged to one end of the pull rod 22. The base 23 is installed at one end of the fixed rod 21, and the adjusting screw 25 passes through the base 23 and is threadedly connected to the base 23. The other end of the connecting rod 24 is connected to the adjusting screw 25. The ends are hinged together; each shaping strip 10 is connected to the fixed rod 21 by a compression spring 211, and a shaping strip 10 is also inserted below the comb plate sandwich shaping device 11 by a compression spring 211; rotating the adjusting screw 25 can cause the strip housing 14 to drive the shaping device to extend out of the comb plate sandwich shaping device 11, thereby sealing the blank area. By using the adjusting screw 25 and the hinge 221 rod technology, the power problem of the lateral sealing shaping strip 10 during use is solved, and the construction efficiency is improved.

[0045] Multiple grooves 140 are provided inside the strip-shaped housing 14 along the width direction for multiple shaping strips 10 to slide.

[0046] The adjusting screw 25 is covered with a dust cover 251 to protect the adjusting screw 25, so that the device can be disassembled through the adjusting screw 25 after subsequent construction is completed for future use.

[0047] Reference Figures 8-10 The construction method for the formwork support device at the construction joint of the side wall provided by the present invention includes the following steps:

[0048] S1. First, the formwork support device for the side wall construction joint can be installed in advance to the designated position, and the shaped comb plate 1 that touches the steel bar on the side can be moved horizontally.

[0049] S2, a formwork support device for side wall construction joints, is assembled between adjacent comb board boxes 3 through box body connecting grooves 31 according to the required length;

[0050] S3. Fix the end of the multiple sets of forming comb plates 1 after passing through the steel bars with the fixing device 4, and install the hinge rod 41 on both the fixing device 4 and the comb plate box 3. Then fix it to the upper steel bar through the hinge rod 41, hinge connector 42 and ring buckle 43. Then fix the construction joint forming comb plate 1 to the lower steel bar by the fixing device 4 and the ring buckle 43.

[0051] S4. Adjust the component 2 to make the shaping comb plate 1 extend forward and backward to the shaping strip 10 until the sealing distance is reached. After the sealing distance is reached, lock the adjusting screw 25 and close the dust cover 251 of the adjusting screw 25.

[0052] S5. Before pouring at the construction joint of the side wall, a release agent should be applied to the shaped comb board 1;

[0053] S6. When the pouring is completed, wait until the concrete is about to cure before testing and accepting it. After the acceptance is qualified, the formwork support device used at the construction joint of the side wall is dismantled and cleaned for use in the next construction.

[0054] The above description is merely a preferred embodiment of the present invention and does not limit the implementation and protection scope of the present invention. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present invention should be included within the protection scope of the present invention.

Claims

1. A formwork support device for construction joints in side walls, characterized in that, include A shaping comb plate, wherein the shaping strips on both sides of the shaping comb plate are controlled to extend and retract by an adjustment component; the shaping comb plate includes a comb plate interlayer shaping device and an upper and lower shaping device of the comb plate respectively fixed on both sides of the comb plate interlayer shaping device. The upper and lower shaping devices of the comb plate are symmetrically arranged about the center of the comb plate interlayer shaping device, and both the upper and lower shaping devices of the comb plate include a strip-shaped shell, wherein a plurality of shaping strips are inserted in the width direction of the strip-shaped shell; The comb plate box body contains multiple shaping comb plates that are slidably connected side-by-side. When a shaping comb plate touches a reinforcing bar, creating a blank area on its corresponding side, the shaping comb plates on adjacent sides of that plate are adjusted by an adjustment assembly to extend their corresponding shaping strips and seal the blank area. The adjustment assembly includes a fixed rod, a pull rod, a base, a connecting rod, and an adjusting screw. The pull rod is rotatably connected to the strip-shaped housing and the fixed rod via hinges, and the connecting rod is hinged to one end of the pull rod. The base is installed at one end of the fixed rod, and the adjusting screw passes through the base and is threadedly connected to it. The other end of the connecting rod is hinged to the end of the adjusting screw. Each shaping strip is connected to the fixed rod via a compression spring. Rotating the adjusting screw causes the strip-shaped housing to extend the shaping device outside the comb plate interlayer shaping device. The fastener is fixedly sleeved at the end of the shaped comb plate after passing through the reinforcing bar, and is fixed to the reinforcing bar by a hinge rod.

2. The formwork support device for side wall construction joints according to claim 1, characterized in that, The strip-shaped shell has multiple sliding grooves along its width for sliding multiple shaping strips.

3. The formwork support device for side wall construction joints according to claim 1, characterized in that, The adjusting screw is covered with a dust cover.

4. The formwork support device for side wall construction joints according to claim 1, characterized in that, The hinge is fixed to the pull rod by a rotating screw.

5. The formwork support device for side wall construction joints according to claim 1, characterized in that, The two adjacent comb plate boxes are interlocked.

6. The construction method for the formwork support device at the construction joint of the side wall according to any one of claims 1-5, characterized in that, Includes the following steps: S1. First, install the formwork support device for the side wall construction joint to the designated position in advance, and move the shaped comb plate that touches the steel bar on the side horizontally. S2. The formwork support device used at the construction joint of the side wall assembles the adjacent comb board boxes together through the box body connecting groove according to the required length. S3. Fix the ends of the multiple sets of shaped comb plates that have passed through the steel bars with fixing devices, and then fix the fixing devices to the corresponding steel bars through the hinge rods. S4. Adjust the components to extend the shaping comb plate forward and backward to reach the sealing distance; S5. Before pouring concrete at the construction joint of the side wall, a release agent should be applied to the shaped comb board. S6. When the pouring is completed, wait until the concrete is about to cure before testing and accepting it. After the acceptance is qualified, the formwork support device used at the construction joint of the side wall is dismantled and cleaned for use in the next construction.

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