Post-construction hole formwork reinforcing structure and construction method thereof

Abstract

The application discloses a post-pouring hole formwork reinforcing structure for building construction and a construction method thereof, and belongs to the technical field of building construction. The post-pouring hole formwork reinforcing structure comprises an empty form tube, which is vertically arranged in a post-pouring hole of a floor slab, and the middle part of the empty form tube is outwardly protruded to form a water-stop form box, the inner cavity of the water-stop form box is communicated with the inner cavity of the empty form tube to form a first pouring space, the bottom of the floor slab is attached with a formwork, the second pouring space is formed between the formwork and the inner wall of the post-pouring hole and the empty form tube, and the formwork is provided with a perforation. A suspender is movably arranged in the empty form tube and the perforation, the lower end of the suspender is detachably provided with a supporting piece, and the supporting piece is supported on the formwork. A counter-force piece is detachably arranged on the upper end of the suspender, and two supporting rods of the upper aperture of the post-pouring hole are supported on the counter-force piece. After the concrete poured in the second pouring space is solidified and the suspender is removed, the concrete is poured in the first pouring space to form a water-stop form module. The application solves the problem that the existing floor slab has a high risk of leakage after the line hole is sealed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building construction, in particular to a building construction post-poured hole formwork reinforcing structure and a construction method thereof. BACKGROUND

[0002] In building construction, line holes are often reserved on the floor. The line holes are blocked by hanging formwork in the later stage. When using hanging formwork support, the later stage screw hole blocking is not tight enough, and the risk of floor leakage is high.

[0003] In addition, when using a separate support frame to support, the floor height is large, and the support range of the frame needs to be increased, occupying the remaining construction area, and the process insertion is prone to lag. SUMMARY

[0004] In order to overcome the defects of the prior art, the present application provides a building construction post-poured hole formwork reinforcing structure and a construction method thereof, to solve the problem of high leakage risk after the line hole of the existing floor is blocked.

[0005] In order to achieve the above-mentioned purpose, a building construction post-poured hole formwork reinforcing structure is provided, comprising:

[0006] An empty formwork pipe is vertically arranged in the post-poured hole of the floor, the height of the empty formwork pipe is adapted to the thickness of the floor, the middle part of the empty formwork pipe is outwardly convex to form a water stop form box, the inner cavity of the water stop form box is communicated with the inner cavity of the empty formwork pipe to form a first pouring space, the bottom of the floor is attached to a formwork arranged below the post-poured hole, a second pouring space is formed between the formwork, the empty formwork pipe and the inner wall of the post-poured hole, and the formwork is provided with a perforation aligned with the lower pipe opening of the empty formwork pipe;

[0007] A hanging rod is movably arranged in the empty formwork pipe and the perforation, and a support is detachably mounted at the lower end of the hanging rod and supported on the formwork.

[0008] A counter-force member is arranged at the upper opening of the post-poured hole, two supporting rods are arranged on the opposite sides of the upper end of the hanging rod, the counter-force member is detachably mounted on the upper end of the hanging rod, the two supporting rods are supported on the counter-force member, and after the concrete in the second pouring space is solidified and the hanging rod is removed, the concrete in the first pouring space is poured to form a water stop module.

[0009] Further, the water stop form box comprises a bottom plate, a top plate and a side plate, the top plate and the bottom plate are annular and have a shape and size adapted to each other, the inner edges of the top plate and the bottom plate are connected to the empty formwork pipe, and the side plate is connected to the outer edges of the top plate and the bottom plate.

[0010] Further, the top plate and the bottom plate are elliptical ring shapes.

[0011] Further, inner sides of intersections of upper portions of the side plates and the top plate and intersections of lower portions of the side plates and the bottom plate are respectively provided with water-swelling sealing strips.

[0012] Further, upper and lower ends of the suspender are respectively formed with external threads, the counter-force member and the support member are respectively provided with threaded holes, the counter-force member is screwed to the upper end of the suspender, and the support member is screwed to the lower end of the suspender.

[0013] Further, the concrete poured in the first pouring space is foamed concrete.

[0014] The application provides a construction method of a post-pouring hole template reinforcing structure, comprising the following steps:

[0015] The template is attached to the bottom of the floor to block the lower aperture of the post-pouring hole;

[0016] The suspender is vertically arranged in the post-pouring hole, so that the lower end of the suspender is arranged in the perforation of the template;

[0017] The support member is installed at the lower end of the suspender, so that the support member supports the template;

[0018] The hollow mold pipe is sleeved on the suspender, so that the hollow mold pipe is vertically arranged in the post-pouring hole;

[0019] Two supporting rods are placed at the upper aperture of the post-pouring hole, and the two supporting rods are arranged at opposite sides of the upper end of the suspender;

[0020] The counter-force member is installed at the upper end of the suspender, so that the two supporting rods support the counter-force member;

[0021] The concrete is poured in a second pouring space formed between the template, the hollow mold pipe and the inner wall of the post-pouring hole;

[0022] After the concrete poured in the second pouring space is solidified, the suspender is removed;

[0023] The concrete is poured in a first pouring space formed by the inner cavity of the sealing mold box and the inner cavity of the hollow mold pipe to solidify the sealing mold block.

[0024] The building construction post-pouring hole formwork reinforcing structure of the present application can reduce the risk of post-pouring hole leakage of the floor. Specifically, the middle part of the hollow form tube forms a water stop form box, and the water stop form box and the hollow form tube are poured with concrete to form a water stop module, and the water seepage path is extended on both sides of the hollow form tube, thereby reducing the risk of leakage of the post-pouring hole of the floor. The building construction post-pouring hole formwork reinforcing structure of the present application reduces the secondary steel pipe formwork, and does not need to use a support member for support when the floor height is large. It is green, environmentally friendly, saves materials, low-carbon, saves labor, and has strong economic benefits. BRIEF DESCRIPTION OF DRAWINGS

[0025] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments made with reference to the accompanying drawings:

[0026] Figure 1 FIG. 1 is a structural schematic diagram of a building construction post-pouring hole formwork reinforcing structure according to an embodiment of the present application.

[0027] Figure 2 FIG. 2 is a structural schematic diagram of the lower part of the building construction post-pouring hole formwork reinforcing structure according to an embodiment of the present application.

[0028] Figure 3 FIG. 3 is a sectional view of the building construction post-pouring hole formwork reinforcing structure according to an embodiment of the present application.

[0029] Figure 4 FIG. 4 is an assembly state schematic diagram of the hollow form tube and the suspender according to an embodiment of the present application.

[0030] Figure 5 FIG. 5 is a state schematic diagram of the post-pouring hole of the floor after pouring and plugging according to an embodiment of the present application. DETAILED DESCRIPTION

[0031] The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related application, and not to limit the application. In addition, it should be noted that only the parts related to the application are shown in the drawings for ease of description.

[0032] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0033] REFERENCE Figures 1 to 5 As shown in the drawings, the present application provides a building construction post-pouring hole formwork reinforcing structure, which comprises: a hollow form tube 1, a suspender 2, and a counter-force member 3.

[0034] In this embodiment, the hollow mold tube is a cast iron pipe. The hollow mold tube 1 is vertically installed in the post-cast hole 40 of the floor slab 4. The height of the hollow mold tube 1 is adapted to the thickness of the floor slab 4.

[0035] The middle part of the hollow mold tube 1 protrudes outward to form a water-stop mold box 11. The water-stop mold box and the hollow mold tube are integrally cast. The inner cavity of the water-stop mold box 11 is connected to the inner cavity of the hollow mold tube 1 to form the first casting space.

[0036] See Figure 1 and Figure 2 As shown, a template 5 is attached to the bottom of the floor slab 4, positioned below the post-pouring hole 40. A second pouring space is formed between the template 5, the empty formwork pipe 1, and the inner wall of the post-pouring hole 40. The template 5 has a through hole aligned with the lower opening of the empty formwork pipe 1.

[0037] The hanger rod 2 is movably inserted into the hollow formwork tube 1 and the perforation. A support member 21 is detachably installed at the lower end of the hanger rod 2. The support member 21 supports the formwork 5.

[0038] In a preferred embodiment, the outer diameter of the hanger is adapted to the inner diameter of the hollow mold tube. The hollow mold tube and the waterstop mold box are integrally cast to form a vertical pipe with a bulge in the middle.

[0039] Continue reading Figure 1 and Figure 2 As shown, two support rods 31 are placed at the upper opening of the post-cast hole 40. The two support rods 31 are located on opposite sides of the upper end of the hanger 2. The reaction member 3 is detachably installed at the upper end of the hanger 2. The two support rods 31 are supported by the reaction member 3.

[0040] For sealing the post-cast holes, the process involves two pours: first, concrete is poured into the second pouring space, and then concrete is poured into the first pouring space. After the concrete 6 poured in the second pouring space has solidified and the hanger 2 has been removed, concrete is poured into the first pouring space to solidify and form the water-stop module 7.

[0041] In a preferred embodiment, the water-stop mold box 11 includes a base plate 111, a top plate 112, and a side plate 113. The top plate 112 and the base plate 111 are annular. The shape and size of the top plate 112 are adapted to the shape and size of the base plate 111. The inner edges of the top plate 112 and the base plate 111 are connected to the hollow mold tube 1. The side plate 113 is connected to the outer edges of the top plate 112 and the base plate 111.

[0042] In this embodiment, the top plate 112 and the bottom plate 111 are elliptical rings. The overall shape of the waterstop mold box is elliptical.

[0043] A water-swellable waterstop strip 114 is provided on the inner side of the junction between the upper part of the side plate 113 and the top plate 112. A water-swellable waterstop strip 114 is also provided on the inner side of the junction between the lower part of the side plate 113 and the bottom plate 111.

[0044] As a preferred embodiment, the upper end and the lower end of the suspender 2 are formed with external threads respectively. The counter-force member 3 and the support member 21 are respectively provided with threaded holes. The counter-force member 3 is screwed to the upper end of the suspender 2. The support member 21 is screwed to the lower end of the suspender 2.

[0045] In the embodiment, the concrete cast in the first casting space is foamed concrete.

[0046] The application provides a construction method of a post-pouring hole formwork reinforcing structure in building construction, which comprises the following steps:

[0047] S1, the formwork 5 is attached to the bottom of the floor 4 to block the lower aperture of the post-pouring hole 40.

[0048] S2, the suspender 2 is vertically arranged in the post-pouring hole 40, so that the lower end of the suspender 2 is arranged in the perforation of the formwork 5.

[0049] S3, the support member 21 is installed at the lower end of the suspender 2, so that the support member 21 supports the formwork 5.

[0050] S4, the hollow form tube 1 is sleeved on the suspender 2, so that the hollow form tube 1 is vertically arranged in the post-pouring hole 40.

[0051] S5, two supporting rods 31 are placed at the upper aperture of the post-pouring hole 40, and the two supporting rods 31 are arranged on the opposite sides of the upper end of the suspender 2.

[0052] S6, the counter-force member 3 is installed at the upper end of the suspender 2, so that the two supporting rods 31 support the counter-force member 3.

[0053] S7, the concrete 6 is cast in the second casting space formed between the formwork 5 and the inner wall of the hollow form tube 1 and the post-pouring hole 40.

[0054] S8, after the concrete 6 cast in the second casting space is solidified, the suspender 2 is removed.

[0055] S9, the concrete is cast in the first casting space formed in communication between the inner cavity of the water-stop form box 11 and the inner cavity of the hollow form tube 1 to solidify the water-stop form box 11 to form the water-stop form box 7.

[0056] The post-pouring hole formwork reinforcing structure in building construction can reduce the risk of leakage of the post-pouring hole of the floor in the later period. Specifically, the water-stop form box is formed in the middle of the hollow form tube, the concrete is cast in the water-stop form box and the hollow form tube to form the water-stop form box, and the water leakage paths are respectively extended on the inner side and the outer side of the hollow form tube, so that the risk of leakage of the post-pouring hole of the floor is reduced.

[0057] The post-pouring hole formwork reinforcing structure in building construction is simple to manufacture and flexible and convenient to operate.

[0058] The building construction post-cast hole formwork reinforcing structure of the present application is convenient to install and simple to disassemble, and can avoid the problem of affecting process interpenetration caused by separate formwork support bodies.

[0059] The building construction post-cast hole formwork reinforcing structure of the present application is simple in component materials and design principle, low in manufacturing cost and not easy to be damaged.

[0060] The building construction post-cast hole formwork reinforcing structure of the present application reduces secondary steel pipe formwork support, and does not need to use separate support members for support when the floor height is large, is green and environmentally friendly, saves materials and labor, and has strong economic benefits.

[0061] The above description is merely preferred embodiments of the present application and a description of the technical principles used by the present application. It should be understood by those skilled in the art that the scope of the application involved in the present application is not limited to the technical solutions formed by the specific combinations of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or equivalent features without departing from the inventive concept. For example, the above features can be replaced with technical features disclosed in the present application (but not limited to) having similar functions to form technical solutions.

Claims

1. A reinforcement structure for formwork of post-construction holes in buildings, characterized in that, include: A hollow formwork tube is vertically installed in the post-cast hole of the floor slab. The height of the hollow formwork tube is adapted to the thickness of the floor slab. The middle part of the hollow formwork tube protrudes outward to form a water-stop formwork box. The inner cavity of the water-stop formwork box is connected to the inner cavity of the hollow formwork tube to form a first casting space. A template is attached to the bottom of the floor slab and set below the post-cast hole. A second casting space is formed between the template, the hollow formwork tube, and the inner wall of the post-cast hole. The template has a through hole aligned with the lower opening of the hollow formwork tube. A hanger rod is movably inserted into the hollow mold tube and the through hole, and a support member is detachably installed at the lower end of the hanger rod, the support member supporting the template; The reaction component has two support rods placed on the upper opening of the post-cast hole. The two support rods are located on opposite sides of the upper end of the hanger. The reaction component is detachably installed on the upper end of the hanger. The two support rods are supported by the reaction component. After the concrete poured in the second casting space has solidified and the hanger has been removed, concrete is poured in the first casting space to solidify and form a water-stop module. The water-stop mold box includes a bottom plate, a top plate, and side plates. The top plate and the bottom plate are annular and their shapes and sizes are compatible. The inner edges of the top plate and the bottom plate are connected to the hollow mold tube, and the side plates are connected to the outer edges of the top plate and the bottom plate.

2. The reinforcement structure for post-construction casting hole formwork as described in claim 1, characterized in that, The top plate and the bottom plate are elliptical rings.

3. The reinforcement structure for post-construction casting hole formwork as described in claim 1, characterized in that, Water-swellable sealing strips are respectively provided on the inner side of the junction between the upper part of the side plate and the top plate, and on the inner side of the junction between the lower part of the side plate and the bottom plate.

4. The reinforcement structure for post-construction casting hole formwork as described in claim 1, characterized in that, The upper and lower ends of the boom are respectively formed with external threads, and the reaction member and the support member are respectively provided with threaded holes. The reaction member is screwed into the upper end of the boom, and the support member is screwed into the lower end of the boom.

5. The reinforcement structure for post-construction casting hole formwork as described in claim 1, characterized in that, The concrete poured in the first pouring space is foamed concrete.

6. A construction method for a post-construction formwork reinforcement structure for holes in buildings, as described in any one of claims 1 to 5, characterized in that, Includes the following steps: The template is attached to the bottom of the floor slab to seal the lower opening of the post-pouring hole; The hanger is vertically installed in the post-cast hole, so that the lower end of the hanger passes through the perforation of the template; A support member is installed at the lower end of the suspension rod, so that the support member supports the template; The hollow mold tube is fitted onto the hanging rod, so that the hollow mold tube is vertically placed in the post-cast hole; Two support rods are placed at the upper opening of the post-cast hole, and the two support rods are located on opposite sides of the upper end of the hanger. A reaction member is installed at the upper end of the boom, so that the two support rods are supported by the reaction member; Concrete is poured into the second pouring space formed between the template, the empty mold tube, and the inner wall of the post-pour hole; After the concrete poured in the second pouring space has solidified, the lifting rod is removed; Concrete is poured into the first pouring space formed by the connection between the inner cavity of the water-stop mold box and the inner cavity of the empty mold tube to solidify and form a water-stop module.

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