A method for quickly installing and reinforcing the top of a concrete retaining wall or foundation with a beveled steel form

Abstract

The application provides a kind of concrete retaining wall or base with bevel steel formwork top opening quick installation reinforcing method, which is according to the design size of the retaining wall to be constructed and the vertical formwork top opening control size, uses steel bar to make limiting and reinforcing component, then installs two side steel formwork according to the construction size, and then inserts the bent hooks of the steel bars at both ends of the limiting and reinforcing component into the bolt holes of the flange plates on the top surfaces of the two side steel formworks for anchoring, and the short steel bars on the limiting and reinforcing component are tightly clamped to the inner top points of the steel formwork on the slope surface to limit the inward movement or tilting of the steel formwork on the slope surface, and the steel bars are distributed, installed and fixed along the top opening of the steel formwork to solve the problems of traditional method, such as many and complicated formwork reinforcing and supporting components, slow installation and reinforcement speed, poor concrete appearance quality, material waste, large labor amount, low construction efficiency and high cost. It belongs to the field of building construction.

Description

Technical Field

[0001] This invention relates to a method for rapid installation and reinforcement of the top opening of a sloping steel formwork for a concrete retaining wall or base, belonging to the field of building construction. Background Technology

[0002] Concrete retaining walls or guardrail bases (hereinafter referred to as retaining walls) are often designed with a sloping cross-section. During formwork installation, the positioning requirements for the sloping formwork are high, and specialized support and reinforcement designs are necessary. When installing the retaining wall side formwork (steel formwork), it is positioned according to the design dimensions and reinforced with tie rods. Since tie rod reinforcement only restricts the outward movement of the formwork on both sides, it cannot restrict inward movement or tilting. Therefore, additional measures are needed to limit the inward movement or tilting of the side formwork. Traditionally, anchoring steel bars are added to the bottom of the concrete inside the formwork, and diagonal bracing is used within the concrete to be poured to reinforce the inner side of the formwork, thus limiting inward movement or tilting and forming a stable structure. However, this would cause the steel pipes or thick steel bars supporting the inside of the formwork to be buried in the newly poured retaining wall concrete and unable to be removed, resulting in material waste. The steel bars or steel pipe components inside the formwork would also create appearance defects on the concrete surface. In addition, the increased internal support of the formwork would increase the workload, reduce construction progress efficiency, and increase costs. Summary of the Invention

[0003] To accelerate the positioning, installation, and reinforcement of retaining wall formwork while ensuring safety and quality, shorten the formwork support and reinforcement time, reduce material waste, and lower construction costs, this invention provides a method for rapid installation and reinforcement of the top opening of a concrete retaining wall or base with inclined steel formwork. This method addresses the problems of traditional formwork reinforcement and support components being numerous and complex, slow installation and reinforcement speed, and poor concrete appearance quality, which lead to material waste, high labor intensity, low construction efficiency, and high costs.

[0004] To achieve the above objectives, a rapid installation and reinforcement method for concrete retaining walls or bases with sloping steel formwork at the top opening is proposed, as detailed below:

[0005] 1) Based on the design dimensions of the retaining wall to be constructed and the control dimensions of the top opening of the formwork, use steel bars with a diameter greater than or equal to 16mm to make limiting and reinforcing components. Both ends of the limiting and reinforcing components have steel bar hooks. Short steel bars are also welded and fixed on the limiting and reinforcing components on the inner side of the steel bar hooks corresponding to the steel formwork on the slope.

[0006] 2) Based on the design dimensions of the outer contour of the retaining wall to be constructed, lay out the control line of the formwork on the foundation, install the vertical steel formwork along the control line, and, as needed, set up temporary diagonal braces on the outside to stabilize the vertical steel formwork.

[0007] 3) Based on the installation line of the steel formwork on the slope, install the steel formwork on the foundation along the line of the slope.

[0008] 4) Install limiting and reinforcing components at the top of the steel formwork on the slope surface, and anchor the steel bar hook at one end of the limiting and reinforcing components into the bolt holes of the flange on the top surface of the formwork.

[0009] 5) Insert the reinforcing bar hook at the other end of the limiting and reinforcing member into the bolt hole on the top surface of the vertical steel formwork for anchoring, so that the short reinforcing bar is clamped and fixed to the inner apex of the inclined steel formwork.

[0010] 6) Install tie rods to reinforce the steel formwork, and install the limiting and reinforcing components 1 in a denser arrangement along the longitudinal direction as needed;

[0011] 7) Check and adjust the dimensions of the steel formwork to ensure that the internal dimensions of the steel formwork cavity meet the design dimensions of the concrete to be poured, and seal the gaps at the bottom plate, joints, and tie rods of the formwork to prevent grout leakage;

[0012] 8) After inspection and acceptance, pour concrete, compact it, and cure it.

[0013] 9) Once the concrete strength reaches the demolding condition, remove the limiting reinforcement components, loosen and remove the tie rods, then remove the steel formwork on both sides. After cleaning up the removed components and formwork, store them for use in the next stage of recycling construction. Cover the concrete components with geotextile and sprinkle water for moisture retention and curing.

[0014] In the aforementioned method, the limiting and reinforcing member is made of HRB400 steel bars with a diameter greater than or equal to 16mm.

[0015] In the aforementioned method, the limiting and reinforcing components are installed and fixed at longitudinal intervals of 50cm to 100cm along the top opening of the steel template.

[0016] Compared with existing technologies, this invention is easy to install, accurately positioned, reliably limited and reinforced, and clearly defined in terms of force. It greatly improves the construction efficiency of template positioning, installation, and reinforcement support, reduces the need for internal support design, and the component can be reused repeatedly, saving material and labor costs. It avoids the processes of cutting, grinding, and plastering internal support steel pipes or thick steel bars, and avoids the impact of exposed internal support steel pipes, backfill holes, and exposed steel bars on the appearance quality of concrete. It is suitable for widespread application and has strong practicality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention;

[0018] Figure 2 This is a cross-sectional view of the present invention in use;

[0019] In the attached drawings, 1 represents a limiting and reinforcing component, 11 represents a reinforcing bar hook, 12 represents a short reinforcing bar, 2 represents a steel formwork, 3 represents a connecting flange, 31 represents a bolt hole, 4 represents a tie rod, 5 represents a steel pipe, and 6 represents concrete to be poured. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention.

[0021] Example

[0022] Reference Figure 1 and Figure 2 This embodiment provides a method for rapid installation and reinforcement of the top opening of a concrete retaining wall or base with a sloping steel formwork, as detailed below:

[0023] 1) Based on the design dimensions of the retaining wall to be constructed and the control dimensions of the top opening of the formwork, use HRB400 steel bars with a diameter greater than or equal to 16mm to make a limiting and reinforcing component 1.

[0024] The limiting and reinforcing member 1 has steel bar hooks 11 at both ends. The length of the limiting and reinforcing member 1 is determined according to the actual size of the top opening of the steel template 2. Short steel bars 12 are also welded and fixed on the limiting and reinforcing member 1 on the inner side of the steel bar hooks 11 corresponding to the steel template 2 on the slope. The steel bar hooks 11 at both ends of the limiting and reinforcing member 1 are respectively used to insert into the bolt holes 31 of the connecting flanges 3 on the top surface of the steel templates 2 on both sides for anchoring. The short steel bars 12 are used to clamp tightly against the inner apex of the steel template 2 on the slope to restrict the steel template 2 on the slope from moving inward or tilting. The limiting and reinforcing members 1 are installed and fixed at longitudinal intervals of 50cm to 100cm along the top opening of the steel template 2.

[0025] 2) Based on the design dimensions of the outer contour of the retaining wall to be constructed, lay out the control line of the formwork on the foundation, install the vertical steel formwork 2 along the control line, and, depending on the situation, support the vertical steel formwork 2 with temporary diagonal bracing on the outside.

[0026] 3) Install the steel formwork 2 of the slope surface along the edge line on the foundation according to the edge line of the steel formwork 2 of the slope surface;

[0027] 4) Install the limiting and reinforcing component 1 at the top of the steel formwork 2 on the slope surface, and insert the steel bar hook 11 at one end of the limiting and reinforcing component 1 into the bolt hole of the flange on the top surface of the formwork for anchoring.

[0028] 5) Insert the reinforcing bar hook 11 at the other end of the limiting and reinforcing member 1 into the bolt hole 31 on the top surface of the vertical steel template 2 and anchor it so that the short reinforcing bar 12 is clamped and fixed to the inner apex of the inclined steel template 2.

[0029] 6) Install tie rods 4 to reinforce the steel formwork, and install the limiting and reinforcing components 1 in a denser longitudinal direction as needed;

[0030] 7) Check and adjust the dimensions of steel formwork 2 to ensure that the inner cavity of steel formwork 2 meets the design dimensions of the concrete 6 to be poured, and seal the gaps at the bottom plate, joints, and tie rods of the formwork to prevent grout leakage;

[0031] 8) After inspection and acceptance, pour concrete, compact it, and cure it.

[0032] 9) Once the concrete strength reaches the demolding conditions (generally after 12 hours for non-load-bearing side formwork), remove the limiting reinforcement component 1, loosen and remove the tie rod 4, then remove the steel formwork 2 on both sides. After cleaning up the removed components and formwork, store them for use in the next stage of recycling construction. Cover the concrete components with geotextile and sprinkle water for moisture retention and curing.

[0033] This installation method is simple to install, accurate in positioning, reliable in limiting and reinforcing, and clear in force, which greatly improves the construction efficiency of formwork positioning, installation and reinforcement support, reduces the design of internal support for formwork, and the component can be reused repeatedly, saving material and labor costs. It avoids the cutting, grinding and plastering of internal support steel pipes or thick steel bars, and avoids the exposure of internal support steel pipes and backfill holes, exposed steel bars and other factors that affect the appearance quality of concrete.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for rapid installation and reinforcement of the top opening of a concrete retaining wall or base with inclined steel formwork, characterized in that, Specifically as follows: 1) Based on the design dimensions of the retaining wall to be constructed and the control dimensions of the top opening of the formwork, a limiting reinforcement component (1) is made with steel bars with a diameter greater than or equal to 16mm. The two ends of the limiting reinforcement component (1) have steel bar hooks (11). Short steel bars (12) are also welded and fixed on the limiting reinforcement component (1) inside the steel bar hooks (11) corresponding to the steel formwork (2) on the slope. 2) Based on the design dimensions of the outer contour of the retaining wall to be constructed, lay out the control line of the formwork on the foundation, install the vertical steel formwork (2) along the control line, and, depending on the situation, support the vertical steel formwork (2) with temporary diagonal bracing on the outside. 3) Install the edge line according to the steel formwork (2) of the slope surface, and install the steel formwork (2) of the slope surface along the edge line on the foundation; 4) Install a limiting and reinforcing component (1) at the top of the steel formwork (2) on the slope surface, and insert the steel bar hook (11) at one end of the limiting and reinforcing component (1) into the bolt hole of the flange on the top surface of the formwork for anchoring. 5) Insert the reinforcing bar hook (11) at the other end of the limiting reinforcement member (1) into the bolt hole (31) on the top surface of the vertical steel template (2) and anchor it so that the short reinforcing bar (12) is clamped and fixed to the inner apex of the inclined steel template (2); 6) Install tie rods (4) to reinforce the steel formwork, and limit and reinforce the components (1) to be installed longitudinally as needed; 7) Check and adjust the size of the steel formwork (2) so that the inner cavity size of the steel formwork (2) meets the design size of the concrete (6) to be poured, and seal the gaps at the bottom plate, joints and tie rods of the formwork to prevent grout leakage; 8) After inspection and acceptance, pour concrete, compact it, and cure it. 9) Once the concrete strength reaches the demolding condition, remove the limiting reinforcement components (1), loosen and remove the tie rods (4), then remove the steel formwork on both sides (2). After cleaning the removed components and formwork, store them for the next stage of recycling construction. Cover the concrete components with geotextile and sprinkle water for moisturizing and curing.

2. The method for rapid installation and reinforcement of the top opening of a concrete retaining wall or base with inclined steel formwork as described in claim 1, characterized in that: The limiting and reinforcing member (1) is made of HRB400 steel bars with a diameter greater than or equal to 16mm.

3. The method for rapid installation and reinforcement of the top opening of a concrete retaining wall or base with inclined steel formwork as described in claim 1, characterized in that: The limiting and reinforcing components (1) are installed and fixed at longitudinal intervals of 50cm to 100cm along the top opening of the steel template (2).

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