Composite plate and aluminum mold combined construction method

Abstract

The invention relates to the field of laminated slab construction, in particular to a first laminated slab and aluminum mold combined construction method. The method comprises the following steps that S1, a mounting groove is formed in the upper working face of the internal corner of the aluminum alloy formwork; and S2, manufacturing an elastic leakage-proof strip. And S3, the leakage-proof strip is placed in the mounting groove. And S4, an anti-skid groove is machined in the upper working face of the aluminum alloy formwork. And S5, the aluminum alloy formwork system is installed and positioned, and beam steel bar binding is completed. And S6, the prefabricated laminated slab is hoisted to the mounting position of the upper working face of the aluminum alloy formwork. And S7, concrete is poured, and component gaps are filled through compression deformation of the leakage-proof strips. And S8, concrete curing and form removal are conducted, and construction of the current-layer structure is completed. The problem of slurry leakage caused by insufficient component matching precision in the traditional process is effectively solved; compression deformation generated by the leakage-proof strips during concrete pouring can fill gaps of components in a self-adaptive mode, repeated construction of temporary plugging materials is avoided through the integrated design of the leakage-proof strips and the aluminum formwork, and the formwork turnover efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the field of composite slab construction, and specifically to a construction method for combining aluminum formwork with composite slabs. Background Art

[0002] Under the background of the rapid development of building industrialization, prefabricated building technology is continuously evolving towards the direction of high efficiency, energy conservation, and environmental protection. As a typical representative of the combination of precast components and cast-in-place concrete, composite slabs, through the collaborative application with the aluminum alloy formwork system, have significantly improved construction efficiency and reduced material consumption. This combined structure gives full play to the dual advantages of high prefabrication precision in the factory and good integrity in on-site pouring, and has become one of the mainstream construction techniques for modern building floors.

[0003] However, in engineering practice, the combined construction of composite slabs and aluminum formwork still faces several technical difficulties. First is the problem of component matching accuracy. Due to the interaction between the dimensional deviations during the prefabrication of composite slabs and the cumulative errors during the installation of aluminum formwork, gaps of 3 - 5 mm are easily formed at the internal corner joints, resulting in slurry leakage during concrete pouring. Secondly, the surface friction coefficient of aluminum alloy formwork is only 0.15 - 0.25, significantly lower than 0.4 - 0.6 of traditional wooden formwork, posing a safety hazard of construction personnel slipping during the hoisting and positioning stage of composite slabs. In addition, in existing technologies, temporary sealing materials are mostly used for anti-leakage measures, and there is a contradiction between their durability and the requirements of formwork turnover, often requiring repeated construction to increase costs. The existence of these problems restricts the further improvement of the quality and safety levels of prefabricated buildings. Summary of the Invention

[0004] The present invention aims to solve the above problems, and thus provides a construction method for combining aluminum formwork with composite slabs to avoid slurry leakage.

[0005] The technical solution adopted by the present invention to solve the above problems is as follows: A construction method for combining aluminum formwork with composite slabs, comprising the following steps: S1: Fabricate installation grooves on the upper working surface at the internal corners of the aluminum alloy formwork. The installation grooves are processed longitudinally along the length of the formwork, and through holes are spacedly arranged in the installation grooves.

[0006] S2: Fabricate a leak-proof strip with elasticity. The height of the leak-proof strip is higher than the depth of the installation groove, and connectors are fixed at the bottom of the leak-proof strip.

[0007] S3: Place the leak-proof strip in the installation groove and fix it to the through holes through the connectors.

[0008] S4: Process anti-slip grooves on the upper working surface of the aluminum alloy formwork.

[0009] S5: Install and position the aluminum alloy formwork system and complete the binding of beam steel bars.

[0010] S6: Hoist the precast composite slab to the installation position on the upper working surface of the aluminum alloy formwork.

[0011] S7: Pour the concrete and use the compression deformation of the leak-proof strip to fill the gaps between components.

[0012] S8: Cure the concrete and remove the formwork to complete the construction of the current floor structure. After removing the formwork, the leak-proof strip is recycled as a whole with the aluminum formwork.

[0013] The present invention adopting the above technical solution, compared with the prior art, its prominent features are: Through the technical solution of setting installation grooves at the internal corners of the aluminum alloy formwork and configuring elastic leak-proof strips, the problem of mortar leakage caused by insufficient matching accuracy of components in the traditional process is effectively overcome; the compression deformation generated by the leak-proof strip during concrete pouring can adaptively fill the gaps between components, and its integrated design with the aluminum formwork avoids the repeated construction of temporary sealing materials and improves the formwork turnover efficiency. The anti-slip groove structure added to the upper working surface of the aluminum alloy formwork improves the operation safety of construction workers and solves the potential risk of slipping caused by insufficient friction coefficient on the surface of the aluminum formwork. This method realizes the organic combination of leak-proof measures and the formwork system, and reduces the comprehensive cost while ensuring the construction quality.

[0014] As a preference, a further technical solution of the present invention is: Further, the leak-proof strip is of the same length as the installation groove, and the width of the leak-proof strip when reset is smaller than the width of the installation groove. This structural feature enables the leak-proof strip to completely cover the internal corner joint area, which is beneficial to forming a continuous sealing interface. The design that the reset width of the leak-proof strip is smaller than the groove reserves space for its compression deformation and avoids interference problems during the installation process.

[0015] Further, the leak-proof strip is a cavity structure that can generate elastic deformation during concrete pouring. Adopting a cavity structure that can elastically deform can generate adaptive deformation under the concrete pouring pressure, which helps to evenly disperse the contact stress. The cavity structure also improves the material's resilience performance, which is beneficial for multiple turnovers.

[0016] Further, the connecting piece is a plastic bolt corresponding to the number of through holes. The leak-proof strip is placed in the installation groove, and the plastic bolt penetrates the through hole and is locked and fixed by a plastic nut. The cooperation and fixing method of the plastic bolt and the nut not only ensure the installation stability of the leak-proof strip but also avoid damage to the surface of the aluminum formwork by metal parts. This connection form is convenient for disassembly, maintenance, and meets the requirements of formwork turnover. Further, several groups of anti-slip grooves are arranged in parallel on the upper working surface of the aluminum alloy formwork, and the anti-slip grooves are inclined along the length of the formwork. The parallel inclined groove groups can increase the contact area between the sole and the formwork surface, and the inclined direction helps to disperse the advancing direction force of the construction workers. This texture design improves the anti-slip effect while maintaining the flatness of the aluminum formwork surface. Brief Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the overall assembly structure of the embodiment of the present invention; Figure 2 It is a schematic diagram of the elevation structure of the embodiment of the present invention; Figure 3 It is a schematic diagram of the connection structure between the installation groove and the leak-proof strip of the embodiment of the present invention; Figure 4 It is a schematic diagram of the leak-proof strip structure of the embodiment of the present invention; Figure 5 It is a schematic diagram of the structure of the precast laminated slab compressing the leak-proof strip of the embodiment of the present invention; The markings in the figure are: aluminum alloy formwork 1, installation groove 2, leak-proof strip 3, plastic bolt 4, precast laminated slab 5. Detailed Embodiment

[0018] The present invention will be further described below in conjunction with embodiments. The purpose is only to better understand the content of the present invention. Therefore, the examples given do not limit the protection scope of the present invention.

[0019] A construction method for combining aluminum formwork of a laminated slab includes the following steps: S1: Fabricate an installation groove 2 on the upper working surface at the inner corner of the aluminum alloy formwork 1. The installation groove 2 is processed longitudinally along the length of the formwork. Through holes are spacedly arranged in the installation groove 2. The width of the installation groove 2 is 50 mm, and the depth of the installation groove 2 is 3 mm.

[0020] S2: Fabricate an elastic leak-proof strip 3. The height of the leak-proof strip 3 is higher than the depth of the installation groove 2, and a connecting piece is fixed at the bottom of the leak-proof strip 3. The leak-proof strip 3 is rectangular, with a width of 40 mm and a thickness of 5 mm.

[0021] S3: Place the leak-proof strip 3 in the installation groove 2 and fix it to the through hole through the connecting piece.

[0022] S4: Process an anti-slip groove on the upper working surface of the aluminum alloy formwork 1. The anti-slip groove is 30 mm wide and 5 mm deep, and the clear distance between two anti-slip grooves is 30 mm.

[0023] S5: Install and position the aluminum alloy formwork 1 system and complete the binding of beam steel bars.

[0024] S6: Hoist the precast laminated slab 5 to the installation position on the upper working surface of the aluminum alloy formwork 1.

[0025] S7: Pour concrete and use the compression deformation of the leak-proof strip 3 to fill the gaps between components.

[0026] S8: Cure the concrete, remove the formwork, complete the construction of the current layer structure, and after removing the formwork, the leak-proof strip 3 is recycled as a whole with the aluminum formwork.

[0027] Furthermore, the leak-proof strip 3 is the same length as the installation groove 2. When the leak-proof strip 3 is reset, its width is less than the width of the installation groove 2. This structural feature enables the leak-proof strip 3 to completely cover the corner joint area, facilitating the formation of a continuous sealing interface. The design that the width of the leak-proof strip 3 in its natural state is less than that of the groove reserves space for its compressive deformation and avoids interference problems during the installation process.

[0028] Furthermore, the leak-proof strip 3 is a cavity structure that can undergo elastic deformation during concrete pouring. By adopting a cavity structure that can undergo elastic deformation, it can produce adaptive deformation under the pressure of concrete pouring, which helps to evenly disperse the contact stress. The cavity structure also enhances the material's resilience performance, which is beneficial for repeated use.

[0029] Furthermore, the connecting piece is a plastic bolt 4 corresponding to the number of through holes. The leak-proof strip 3 is placed in the installation groove 2, and the plastic bolt 4 passes through the through hole and is locked and fixed by a plastic nut. The cooperation and fixing method of the plastic bolt 4 and the nut not only ensure the installation stability of the leak-proof strip 3 but also avoid damage to the surface of the aluminum formwork caused by metal parts. This connection form is convenient for disassembly, installation, and maintenance, meeting the requirements of the formwork's repeated use. Further, several groups of anti-slip grooves are arranged in parallel on the upper working surface of the aluminum alloy formwork 1, and the anti-slip grooves are inclined along the length of the formwork. The parallel and inclined groove groups can increase the contact area between the sole and the formwork surface, and the inclined direction helps to disperse the walking direction force of the construction workers. This texture design improves the anti-slip effect while maintaining the flatness of the aluminum formwork surface.

[0030] Through the technical solution of arranging the installation groove 2 at the corner of the aluminum alloy formwork 1 and configuring the elastic leak-proof strip 3, the problem of slurry leakage caused by insufficient matching accuracy of components in the traditional process is effectively overcome; the compressive deformation generated by the leak-proof strip 3 during concrete pouring can adaptively fill the gaps between components, and its integrated design with the aluminum formwork avoids the repeated construction of temporary sealing materials, improving the formwork turnover efficiency; the anti-slip groove structure added to the upper working surface of the aluminum alloy formwork 1 improves the operation safety of construction workers and solves the potential safety hazard of slipping caused by insufficient friction coefficient on the surface of the aluminum formwork. This method realizes the organic combination of leak-proof measures and the formwork system, reducing the comprehensive cost while ensuring the construction quality.

[0031] The above description is only a preferred and feasible embodiment of the present invention, and it does not limit the scope of the rights of the present invention accordingly. All equivalent changes made by using the content of the specification and drawings of the present invention are included within the scope of the rights of the present invention.

Claims

1. A construction method combining aluminum formwork for laminated slabs, characterized in that: It includes the following steps: S1: Make an installation groove on the upper working surface at the internal corner of the aluminum alloy formwork. The installation groove is machined longitudinally along the length of the formwork, and through holes are spacedly arranged in the installation groove; S2: Make a leak-proof strip with elasticity. The height of the leak-proof strip is higher than the depth of the installation groove, and a connecting piece is fixed at the bottom of the leak-proof strip; S3: Place the leak-proof strip in the installation groove and fix it to the through holes through the connecting piece; S4: Machine anti-slip grooves on the upper working surface of the aluminum alloy formwork; S5: Install and position the aluminum alloy formwork system and complete the binding of beam steel bars; S6: Hoist the precast composite slab to the installation position on the upper working surface of the aluminum alloy formwork; S7: Pour concrete and use the compression deformation of the leak-proof strip to fill the gap between components; S8: Cure the concrete, remove the formwork, complete the construction of the current floor structure, and after removing the formwork, the leak-proof strip is used for overall turnover with the aluminum formwork.

2. The construction method of the combined aluminum formwork for the laminated slab according to claim 1, wherein: The leak-proof strip is the same length as the installation groove, and the width of the leak-proof strip when reset is smaller than the width of the installation groove.

3. The construction method of combining aluminum formwork for laminated slabs according to claim 1 is characterized in that: The leak-proof strip is a cavity structure that can produce elastic deformation during concrete pouring.

4. The construction method of combining aluminum formwork for laminated slabs according to claim 1, characterized in that: The connecting piece is a plastic bolt corresponding to the number of through holes. The leak-proof strip is placed in the installation groove, and the plastic bolt passes through the through hole and is locked and fixed by a plastic nut.

5. The construction method of combining aluminum formwork for laminated slabs according to claim 1, characterized in that: Several groups of anti-slip grooves are arranged in parallel on the upper working surface of the aluminum alloy formwork, and the anti-slip grooves are inclined along the length of the formwork.

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