Construction device and construction method for small joints of cast-in-place slabs at superimposed floor slabs

Abstract

The present invention discloses a small joint construction device for cast-in-place slabs at a composite floor and a construction method thereof, comprising a construction support mechanism installed below a small groove in the composite floor, the construction support mechanism comprising a module support plate tightly attached to the composite floor and a support device installed on the module support plate, the support device comprising a pressure-bearing bracket and a resistance support mechanism; the resistance support mechanism comprises a wooden square vertically resisting on the module support plate and a top support resisting below the wooden square; the pressure-bearing bracket comprises at least two rows of longitudinal support rods, an auxiliary connecting rod is horizontally connected between the longitudinal support rods in the same row, an auxiliary stabilizing rod is connected between two longitudinal support rods at corresponding positions between two adjacent rows, and a pad is installed at the bottom of each longitudinal support rod; the bottom of the top support is coaxially fixedly installed on the top of the longitudinal support rod. The advantage of the present invention is that the composite floor can be tightly combined and spliced ​​to avoid cracks in the building structure.

Description

Technical Field

[0001] The invention relates to the field of building construction, in particular to a small joint construction device for cast-in-place slab strips at a superimposed floor slab and a construction method thereof. Background Art

[0002] Due to structural design requirements, small joints will be generated in the cast-in-place slab strips when composite floor slabs are used for construction. The conventional method of crack control is to stick adhesive strips on the small joints between the composite floor slab and the formwork before pouring concrete in the cast-in-place section. However, this often wastes materials, complicates the process, increases the labor burden of workers, takes a long time, and is prone to leakage. This patent fully considers the splicing characteristics of composite floor slabs and formworks, and effectively avoids leakage in small joints of cast-in-place slabs through the node groove design and the constant pressure effect of wooden squares, improves construction efficiency, eliminates the occurrence of loose sealing and leakage, and improves the quality of floor slab forming. Summary of the invention

[0003] Purpose of the invention: The purpose of the present invention is to provide a small joint construction device and a construction method for cast-in-place slabs at composite floors in view of the deficiencies in the prior art.

[0004] Technical solution: The invention discloses a construction device for small joints of cast-in-place slabs at a composite floor, comprising a construction support mechanism installed below a small groove in the composite floor, the construction support mechanism comprising a module support plate close to the composite floor and a support device installed on the module support plate, the support device comprising a pressure support and a resistance support mechanism;

[0005] The abutment support mechanism includes a wooden block vertically abutting against the module support plate and a top support abutting against the bottom of the wooden block;

[0006] The pressure-bearing support comprises a plurality of longitudinal support rods, which are arranged in at least two rows, and the longitudinal support rods in the same row are horizontally connected with auxiliary connecting rods, and the two longitudinal support rods at corresponding positions between two adjacent rows are connected with auxiliary stabilizing rods, and the bottom of each longitudinal support rod is equipped with a foot;

[0007] The bottom of the top support is coaxially fixedly mounted on the top end of the longitudinal support rod.

[0008] Preferably, the two smallest faces of the wooden square respectively contact the bottom surface of the module support plate and the top surface of the top support.

[0009] Preferably, the two smallest faces of the wooden square are in interference fit with the bottom face of the module support plate and the top face of the top support respectively.

[0010] Preferably, the auxiliary connecting rod and the auxiliary stabilizing rod are both steel pipes.

[0011] Preferably, the foot pads include weighted foot pads.

[0012] Preferably, the upper section and the lower section of the longitudinal support rod are respectively connected to a group of auxiliary connecting rods and auxiliary stabilizing rods.

[0013] The construction method of the cast-in-place plate with small joint construction device at the assembly of the composite floor slab comprises the following steps:

[0014] (1) Survey and map the location of small joints on the cast-in-place slabs at the composite floor to determine the scope of action that requires the construction support structure to provide resistance support;

[0015] (2) Arrange appropriate longitudinal support rods according to the determined scope of the construction support mechanism to provide the interference support, and install pads at the bottom of the longitudinal support rods to make them stand stably;

[0016] (3) Install auxiliary connecting rods and auxiliary stabilizer rods on the upright longitudinal support rods;

[0017] (4) Coaxially embed the bottom end of the top support into the top end of the longitudinal support rod;

[0018] (5) Install the module pallet tightly on the lower surface of the composite floor slab, and insert the wooden plank between the module pallet and the top of the top support so that it interferes with the bottom surface of the module pallet and the top surface of the top support to achieve the effect of lifting and supporting.

[0019] Compared with the prior art, the present invention has the following beneficial effects: (1) wooden planks are arranged under the module support plate, so that the module support plate is closely attached to the joints of the composite floor slab, thereby preventing the small joints of the cast-in-place slab of the composite floor slab from leaking mortar and exploding the mold;

[0020] (2) Wooden supports are set up under the module pallet. The wooden supports can effectively bear the weight of the module pallet and the load generated during the pouring of concrete. With the reinforcement of the wooden supports, the module pallet can be flexibly bent and tightly connected to the joints of the composite floor slab to prevent leakage;

[0021] (3) The timber beams, top supports, longitudinal support rods, auxiliary connecting rods, auxiliary stabilizing rods and pads form a solid structural system, so that the prefabricated composite panels and formwork remain tightly combined under various loads without deformation or tilting. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the joint of the post-cast strip of the small joint construction device of the cast-in-place slab strip at the composite floor slab in the present invention;

[0023] Figure 2 It is a front view of a small joint construction device for cast-in-place slabs at a composite floor slab in the present invention;

[0024] Figure 3It is a side view of the small joint construction device of the cast-in-place slab at the composite floor in the present invention.

[0025] In the figure: composite floor slab-1, small groove-2, module support plate-3, wooden square-4, top support-5, longitudinal support rod-6, auxiliary connecting rod-7, auxiliary stabilizing rod-8, pad-9. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 understood as a limitation on the present invention.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] The technical solution of the present invention is described in detail with specific embodiments below. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0030] Embodiment 1: A construction device for a small joint of a cast-in-place plate with a composite floor, comprising a construction support mechanism installed below a small groove 2 in a composite floor 1, the construction support mechanism comprising a module support plate 3 close to the composite floor 1 and a support device installed on the module support plate 3, the support device comprising a pressure support and a resistance support mechanism;

[0031] The abutting support mechanism includes a wooden block 4 abutting vertically on the module support plate 3 and a top support 5 abutting below the wooden block 4;

[0032] The pressure-bearing support comprises a plurality of longitudinal support rods 6, which are arranged in at least two rows, and an auxiliary connecting rod 7 is horizontally connected between the longitudinal support rods 6 in the same row, and an auxiliary stabilizing rod 8 is connected between two longitudinal support rods 6 at corresponding positions between two adjacent rows, and a foot 9 is installed at the bottom of each longitudinal support rod 6;

[0033] The bottom of the top support 5 is coaxially fixedly mounted on the top end of the longitudinal support rod 6 .

[0034] The beneficial effects of the present invention are as follows:

[0035] (1) A wooden plank 4 is supported under the module support plate 3 so that the module support plate 3 is in close contact with the joint of the composite floor slab 1, thereby preventing the small joints of the cast-in-place slab of the composite floor slab 1 from leaking mortar and exploding;

[0036] (2) A wooden support 4 is set up under the module support plate 3 to effectively bear the weight of the module support plate 3 and the load generated during the pouring of concrete. Under the reinforcement of the wooden support 4, the module support plate 3 can be flexibly bent and tightly connected to the joint of the composite floor slab 1 to prevent the occurrence of slurry leakage;

[0037] (3) The wooden planks 4, the top supports 5, the longitudinal support rods 6, the auxiliary connecting rods 7, the auxiliary stabilizing rods 8 and the pads 9 form a solid structural system, so that the prefabricated composite panels and the formwork remain tightly combined under various loads without deformation or tilting.

[0038] The two smallest faces of the wood square 4 respectively contact the bottom surface of the module support plate 3 and the top surface of the top support 5, and the two smallest faces of the wood square 4 respectively contact the bottom surface of the module support plate 3 and the top surface of the top support 5. A small groove 2 is opened at the bottom of the composite floor 1, and the wood square 4 is supported at the small groove 2. The wood square 4 is in interference contact with the bottom surface of the module support plate 3, so that the template and the composite board joint are closely attached, so that the small joints of the cast-in-place plate of the composite floor 1 are not easy to leak mortar and explode.

[0039] The auxiliary connecting rod 7 and the auxiliary stabilizing rod 8 are both steel pipes, and the steel pipes here are particularly selected to be round pipes, which can obtain the best structural strength. Here, the auxiliary connecting rod 7, the auxiliary stabilizing rod 8 and the longitudinal support rod 6 are connected by fasteners.

[0040] The feet 9 include counterweight feet 9, which in turn ensure the stability of the supporting device.

[0041] The upper section and the lower section of the longitudinal support rod 6 are respectively connected to a group of auxiliary connecting rods 7 and auxiliary stabilizing rods 8.

[0042] The construction method of assembling a cast-in-place composite floor with a small joint construction device comprises the following steps:

[0043] (1) Survey and map the location of the small joint on the cast-in-place slab of the composite floor slab to determine the scope of action that requires the construction support structure to provide resistance support;

[0044] (2) Arrange appropriate longitudinal support rods 6 according to the determined range of the interference support provided by the construction support mechanism, and install footrests 9 at the bottom of the longitudinal support rods 6 to make them stand stably;

[0045] (3) Install the auxiliary connecting rod 7 and the auxiliary stabilizing rod 8 on the upright longitudinal support rod 6;

[0046] (4) coaxially embed the bottom end of the top support 5 into the top end of the longitudinal support rod 6;

[0047] (5) Install the module support plate 3 closely on the lower surface of the composite floor slab 1, and insert the wooden plank 4 between the module support plate 3 and the top of the top support 5 so that it interferes with the bottom surface of the module support plate 3 and the top surface of the top support 5 to achieve a lifting and supporting effect.

[0048] Relying on cost benchmark accounting and mechanical property testing after construction completion, the technical effects of this technical solution compared to the existing structure and construction technology are as follows: the crack resistance and seepage resistance are significantly improved, the probability of leakage at small joints is reduced from 11.7% to 2.12%, the floor slab is not easy to crack, and the risk of bursting slurry and mold explosion is avoided. The construction measures for secondary plastering are reduced, 7.5% of the cost is saved, and the molding quality is improved.

[0049] In the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first feature is in direct contact with the second feature, or the first feature and the second feature are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0050] Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples without contradicting each other.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A construction device for small joints of cast-in-place plates at a composite floor, comprising a construction support mechanism installed below a small groove in the composite floor, characterized in that: A small groove is opened at the bottom of the composite floor slab, and the construction support mechanism includes a module support plate close to the composite floor slab and a support device installed on the module support plate, and the support device includes a pressure support bracket and a resistance support mechanism; The abutment support mechanism comprises a wooden block vertically abutting against the module support plate and a top support abutting against the bottom of the wooden block, and the wooden block is supported by the small groove portion; The pressure-bearing support comprises a plurality of longitudinal support rods, which are arranged in at least two rows, and the longitudinal support rods in the same row are horizontally connected with auxiliary connecting rods, and the two longitudinal support rods at corresponding positions between two adjacent rows are connected with auxiliary stabilizing rods, and the bottom of each longitudinal support rod is equipped with a foot; The bottom of the top support is coaxially fixedly mounted on the top end of the longitudinal support rod.

2. The small joint construction device for cast-in-place slab strips at the composite floor according to claim 1 is characterized in that: The two smallest surfaces of the wooden square respectively contact the bottom surface of the module support plate and the top surface of the top support.

3. The small joint construction device for cast-in-place slabs at the composite floor according to claim 2 is characterized in that: The two smallest surfaces of the wooden square are respectively in interference with the bottom surface of the module support plate and the top surface of the top support.

4. The small joint construction device for cast-in-place slab strips at the composite floor according to claim 1 is characterized in that: The auxiliary connecting rod and the auxiliary stabilizing rod are both steel pipes.

5. The small joint construction device for cast-in-place slab strips at the composite floor according to claim 1 is characterized in that: The feet include weighted feet.

6. The small joint construction device for cast-in-place slab strips at the composite floor according to claim 1 is characterized in that: The upper section and the lower section of the longitudinal support rod are respectively connected with a group of auxiliary connecting rods and auxiliary stabilizing rods.

7. A construction method for assembling the small joint construction device for cast-in-place slab strips at a composite floor according to claim 1, characterized in that: The following steps are involved: (1) Survey and map the location of small joints on the cast-in-place slabs at the composite floor to determine the scope of action that requires the construction support structure to provide resistance support; (2) Arrange appropriate longitudinal support rods according to the determined scope of the construction support mechanism to provide the interference support, and install pads at the bottom of the longitudinal support rods to make them stand stably; (3) Install auxiliary connecting rods and auxiliary stabilizer rods on the upright longitudinal support rods; (4) Coaxially embed the bottom end of the top support into the top end of the longitudinal support rod; (5) Install the module pallet tightly on the lower surface of the composite floor slab, and insert the wooden plank between the module pallet and the top of the top support so that it interferes with the bottom surface of the module pallet and the top surface of the top support to achieve the effect of lifting and supporting.

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