Ultra-high performance concrete non-dismantling vertical wallboard and construction method thereof

Abstract

The invention relates to an ultra-high performance concrete non-dismantling vertical wallboard and a construction method thereof. The wallboard comprises a non-dismantling formwork, a corner fixing piece used for fixing the non-dismantling formwork from the bottom, a horizontal reinforcing piece used for fixing the non-dismantling formwork from the horizontal direction, a vertical reinforcing piece used for fixing the non-dismantling formwork from the vertical direction, an inclined supporting piece used for fixing the face facing the formwork from the inclined direction, and a reinforcing connecting piece. The non-dismantling formworks are arranged along the side lines of the wall column formworks, a wall column pouring area is defined by the non-dismantling formworks, the corner fixing pieces are arranged on the peripheries of the non-dismantling formworks along the non-dismantling formworks, the vertical reinforcing pieces can be vertically connected to the corner fixing pieces and the reinforcing connecting pieces in an inserted mode, and the horizontal reinforcing pieces can be horizontally connected to the adjacent reinforcing connecting pieces in an inserted mode. Standardized components such as square steel pipes and connecting pieces are adopted in the reinforcing system, all the components can be flexibly replaced according to construction requirements, the components can be dismounted without damage and repeatedly used after concrete pouring is completed, and material loss is greatly reduced.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to an ultra-high performance concrete non-removable vertical wall panel and its construction method. Background Technology

[0002] In China, the main types of formwork selected for shear walls in building construction projects are wooden formwork, aluminum alloy formwork, or precast shear walls. Analyzing from the perspectives of cost, installation difficulty, and environmental impact, wooden formwork presents significant challenges in terms of turnover and material waste; aluminum alloy formwork is more prominent in terms of cost and site adaptability; and precast shear walls have specific requirements regarding cost and the selection of lifting equipment. Summary of the Invention

[0003] To address the aforementioned issues, this invention provides an ultra-high performance concrete non-removable vertical wall panel and its construction method. This invention uses the non-removable wall panel as a carrier. This type of wall panel has the characteristics of high strength, good toughness, and no need for formwork removal. It can participate in structural stress calculations, act as a protective layer for wall column reinforcement, and reduce the amount of cast-in-place concrete used.

[0004] The specific technical solution is as follows: The first aspect of the present invention is to provide an ultra-high performance concrete non-removable vertical wall panel, comprising: a non-removable template, corner fasteners for fixing the non-removable template from the bottom, horizontal reinforcement for fixing the non-removable template horizontally, vertical reinforcement for fixing the non-removable template vertically, and oblique support members and reinforcing connectors for fixing the template from an oblique direction. The non-removable template is arranged along the edge line of the wall column template, and the non-removable templates enclose a wall column casting area. The corner fasteners are arranged along the periphery of the non-removable template. The vertical reinforcement members can be vertically inserted into the corner fasteners and reinforcing connectors. The horizontal reinforcement members can be horizontally inserted into adjacent reinforcing connectors. The fixed end of the oblique support member is installed on the vertical reinforcement member, and the adjustable end of the oblique support member is installed on the cast floor slab.

[0005] Furthermore, the formwork that does not need to be removed is formed by pouring UHPC high-performance concrete.

[0006] Furthermore, the corner fastener includes a fixed angle steel made of angle steel and a bottom insertion pipe installed on the fixed angle steel. The two bent parts of the fixed angle steel are fixed to the non-removable template and the floor slab respectively, and the vertical reinforcement can be vertically inserted into the bottom insertion pipe.

[0007] Furthermore, the bottom insertion tube is made of square tubing.

[0008] Furthermore, the reinforcing connectors include a vertical insertion tube and horizontal insertion tubes installed on opposite sides of the vertical insertion tube.

[0009] Furthermore, the vertical insertion pipe is made of square tubing.

[0010] Furthermore, the horizontal connector is U-shaped with its opening facing upwards.

[0011] Furthermore, both the horizontal and vertical reinforcement components are made of square tubing.

[0012] Furthermore, the inclined support is an adjustable brace. The fixed end of the adjustable brace is installed on the vertical reinforcement, and the adjustable end of the inclined support is installed on the poured floor slab.

[0013] A second aspect of the present invention is to provide a method for constructing ultra-high performance concrete vertical wall panels that do not require demolition, comprising: Complete the floor layout, wall and column reinforcement binding, water and electricity pre-embedding, and other work; Determine the installation position of the non-removable formwork according to the wall and column formwork edge line, and fix the corner fasteners along the formwork edge line; Align the bottom edge of the template with the template edge line and erect the template. Securely connect the formwork to the corner fasteners, and then install cement support blocks between the formwork sections. Install vertical reinforcement components and reinforcing connectors upwards as needed, and then install horizontal reinforcement components between adjacent reinforcing connectors; Install diagonal supports to reinforce the system using corner fasteners, vertical reinforcements, reinforcing connectors, horizontal reinforcements, and diagonal supports. After the concrete is poured, remove the corner fasteners, vertical reinforcements, reinforcing connectors, horizontal reinforcements, and diagonal supports.

[0014] The beneficial effects of the above scheme are: 1) In this invention, high-performance concrete wall panels are used as non-removable formwork. The wall panel thickness is only 10~12mm, which is much thinner than traditional non-removable formwork and prefabricated vertical components. Moreover, the wall panel has a compressive strength of 107MPa and a flexural strength of 17MPa. While ensuring high strength and rigidity, it does not rely on lifting machinery and does not occupy the operation time of lifting equipment. Installation can be completed manually, breaking through the technical bottleneck of existing non-removable formwork that is "thick and relies on lifting equipment". 2) The reinforcement system in this invention uses standardized components such as square steel pipes and connectors. All components can be flexibly replaced according to construction needs. Only one reinforcement system is needed for normal construction of building projects. After the concrete is poured, it can be dismantled without damage and reused repeatedly, which greatly reduces material waste and solves the problems of low turnover efficiency of traditional wooden formwork and high cost of aluminum formwork. 3) The entire process of this invention adopts a purely mechanical connection, without involving complex processes such as welding. The operation process is simple and easy to understand, and no professional high-tech workers are required to get started. This reduces the technical threshold for construction, while also reducing the quality risks caused by complex procedures and improving construction efficiency and safety. 4) This invention is tailored to the characteristics of ultra-thin, non-removable wall panels with a thickness of 10-12mm. It adopts a customized installation and reinforcement method, which achieves millimeter-level precision control through components such as positioning angle steel and adjustable diagonal braces. The quality indicators are "visible and obtainable", which effectively solves the pain points of traditional wooden and steel molds, such as "complex reinforcement process and difficulty in controlling quality indicators such as structural dimensions and verticality". It also effectively solves the problems of complex reinforcement and difficulty in controlling quality indicators of traditional wooden and steel molds. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of the non-removable vertical wall panel provided in an embodiment of the present invention; Figure 2 This is a structural schematic diagram of the corner fixing member provided in an embodiment of the present invention; Figure 3 This is a structural schematic diagram of the reinforcing connector provided in an embodiment of the present invention.

[0016] In the attached diagram: 10, non-removable template; 20, corner fastener; 21, fixed angle steel; 22, bottom insertion pipe; 30, horizontal reinforcement; 40, vertical reinforcement; 50, diagonal support; 60, reinforcing connector; 61, vertical insertion pipe; 62, horizontal insertion pipe. Detailed Implementation

[0017] 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.

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0019] 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.

[0020] like Figures 1 to 3As shown, the non-removable vertical wall panel provided in the embodiment of the present invention includes a non-removable template 10, corner fixing members 20 for fixing the non-removable template 10 from the bottom, horizontal reinforcement members 30 for fixing the non-removable template 10 from the horizontal direction, vertical reinforcement members 40 for fixing the non-removable template 10 from the vertical direction, and inclined support members 50 and reinforcing connectors 60 for fixing the template from the oblique direction. The non-removable template 10 is set along the edge line of the wall column template, and the non-removable templates 10 enclose the wall column casting area. The corner fixing members 20 are set along the periphery of the non-removable template 10. The vertical reinforcement members 40 can be vertically inserted into the corner fixing members 20 and the reinforcing connectors 60. The horizontal reinforcement members 30 can be horizontally inserted into the adjacent reinforcing connectors 60. The fixed end of the inclined support member 50 is installed on the vertical reinforcement member 40, and the adjusting end of the inclined support member 50 is installed on the cast floor slab.

[0021] In this invention, the formwork 10 is formed by casting UHPC high-performance concrete. This type of wall panel has the characteristics of high strength, good toughness, and no need for formwork removal. When used, it can participate in structural stress calculation as a carrier and act as a protective layer for wall column reinforcement, reducing the amount of cast-in-place concrete. The formwork 10 in this invention is only 10~12mm thick, much thinner than traditional formwork and prefabricated vertical components. Moreover, the wall panel has a compressive strength of 107MPa and a flexural strength of 17MPa. While ensuring high strength and rigidity, it does not rely on lifting machinery and does not occupy the operation time of lifting equipment. Installation can be completed manually, breaking through the technical bottleneck of existing formwork that is "thick and dependent on lifting equipment".

[0022] As a specific example, such as Figure 1 , Figure 2 As shown, the corner fixing member 20 of this invention includes a fixing angle steel 21 made of angle steel and a bottom insertion pipe 22 installed on the fixing angle steel 21. The two mutually perpendicular bent parts of the fixing angle steel 21 are respectively fixed to the non-removable template 10 and the floor slab, thereby fixing the non-removable template 10 from the bottom. In this invention, the vertical reinforcement member 40 can be vertically inserted into the bottom insertion pipe 22, thereby reinforcing the non-removable template 10 in the vertical direction.

[0023] As a specific example, such as Figure 1 , Figure 3 As shown, the reinforcing connector 60 in this invention includes a vertical insertion tube 61 and horizontal insertion tubes 62 installed opposite to each other on both sides of the vertical insertion tube 61; under the above structure, the vertical reinforcing member 40 can be vertically inserted into the vertical insertion tube 61, thereby reinforcing the non-removable template 10 in the vertical direction; to facilitate the reinforcement of the non-removable template 10 in the horizontal direction, such as Figure 3As shown, the horizontal insertion pipe 62 in this invention is U-shaped with its opening facing upwards, which makes it convenient for construction personnel to directly insert both ends of the horizontal reinforcement member 30 into the 62 of the adjacent reinforcement connector 60.

[0024] As a specific example, such as Figure 1 As shown, in this invention, the inclined support 50 is a commercially available adjustable brace. The fixed end of the adjustable brace is installed on the vertical reinforcement 40, and the adjustable end of the inclined support 50 is installed on the poured floor slab.

[0025] In order to effectively reduce costs and maximize the use of existing structures, the bottom insertion tube 22, the vertical insertion tube 61, the horizontal reinforcement 30 and the vertical reinforcement 40 can all be made of square tubes. The above-mentioned related structures made of square tubes can also form a limiting structure between each other to avoid twisting between structures, so as to form a stable reinforcement system for the non-removable template 10.

[0026] The construction method of the above-mentioned ultra-high performance concrete non-removable vertical wall panel in this invention includes: Complete the floor layout, wall and column reinforcement binding, water and electricity pre-embedding, and other work; Determine the installation position of the non-removable template 10 according to the wall column template edge line, and use screws to fix the corner fastener 20 along the template edge line; Align the bottom edge of the non-removable formwork 10 with the formwork edge line using manual labor or lifting equipment, and erect the formwork. Securely connect the non-removable formwork 10 to the corner fasteners 20 using screws, and then install cement supports between the non-removable formwork 10 to ensure the cross-sectional dimensions of the shear wall / column. As needed, vertical reinforcement members 40 and reinforcement connectors 60 are inserted and installed sequentially upwards, and then horizontal reinforcement members 30 are installed between adjacent reinforcement connectors 60. Install the diagonal support 50 to reinforce the system using the corner fastener 20, vertical reinforcement 40, reinforcing connector 60, horizontal reinforcement 30 and diagonal support 50. After the concrete is poured, remove the corner fastener 20, vertical reinforcement 40, reinforcing connector 60, horizontal reinforcement 30, and diagonal support 50.

[0027] 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 demountable vertical wall panel of ultra-high performance concrete, characterised in that, The application relates to a removable formwork, corner fixing members for fixing the formwork from the bottom, horizontal reinforcing members for fixing the formwork from the horizontal direction, vertical reinforcing members for fixing the formwork from the vertical direction, diagonal supporting members for fixing the formwork from the diagonal direction and reinforcing connecting members, wherein the formwork is arranged along the wall column formwork edge line, the wall column pouring area is formed by combining the formwork, the corner fixing members are arranged on the periphery of the formwork, the vertical reinforcing members can be vertically inserted into the corner fixing members and the reinforcing connecting members, the horizontal reinforcing members can be horizontally inserted into adjacent reinforcing connecting members, the fixing end of the diagonal supporting member is arranged on the vertical reinforcing member, and the adjusting end of the diagonal supporting member is arranged on the completed floor slab. The formwork is formed by pouring UHPC high-performance concrete.

2. The ultra-high performance concrete demountable vertical wall panel of claim 1, wherein, The corner fixing member comprises a fixed angle steel made of angle steel and a bottom insertion pipe arranged on the fixed angle steel, two bent parts of the fixed angle steel are fixed on the formwork and the floor slab respectively, and the vertical reinforcing member can be vertically inserted into the bottom insertion pipe.

3. The ultra-high performance concrete demountable vertical wall panel of claim 1, wherein, The bottom insertion pipe is made of a square tube.

4. The ultra-high performance concrete demountable vertical wall panel of claim 3, wherein, The reinforcing connecting member comprises a vertical insertion pipe and horizontal insertion pipes arranged on both sides of the vertical insertion pipe.

5. The ultra-high performance concrete demountable vertical wall panel of claim 1, wherein, The vertical insertion pipe is made of a square tube.

6. The ultra-high performance concrete demountable vertical wall panel of claim 5, wherein, The horizontal insertion pipe is in the shape of "U", and the opening of the horizontal insertion pipe faces upward.

7. The ultra-high performance concrete demountable vertical wall panel of claim 5, wherein, The horizontal reinforcing member and the vertical reinforcing member are both made of square tubes.

8. The ultra-high performance concrete demountable vertical wall panel of claim 1, wherein, The diagonal supporting member is an adjustable diagonal support, the fixing end of the diagonal supporting member is arranged on the vertical reinforcing member, and the adjusting end of the diagonal supporting member is arranged on the completed floor slab.

9. The ultra-high performance concrete demountable vertical wall panel of claim 1, wherein, The application also discloses a method for using the formwork.

10. A construction method of a super high performance concrete demountable vertical wall panel, characterized in that, The method comprises the following steps: completing floor line marking, wall column steel binding, water and electricity pre-burying and other work; determining the installation position of the formwork according to the wall column formwork edge line, and fixing and installing the corner fixing member along the formwork edge line; aligning the bottom opening of the formwork with the formwork edge line, and erecting the formwork; connecting the formwork with the corner fixing member firmly, and then installing cement supporting blocks between the formworks; installing the vertical reinforcing member and the reinforcing connecting member upward according to the requirement, and then installing the horizontal reinforcing member between adjacent reinforcing connecting members; installing the diagonal supporting member, so as to utilize the corner fixing member, the vertical reinforcing member, the reinforcing connecting member, the horizontal reinforcing member and the diagonal supporting member reinforcing system; and removing the corner fixing member, the vertical reinforcing member, the reinforcing connecting member, the horizontal reinforcing member and the diagonal supporting member after the concrete pouring is completed. ​ ​ ​ ​ ​ ​ ​

Images