CN114922321A - Ribbed non-dismantling formwork for concrete building and construction method thereof - Google Patents

Abstract

The ribbed non-dismantling formwork for concrete building includes one panel with longitudinal and transverse lining ribs in criss-cross arrangement on one side, and the panel is installed to the side of concrete pouring cavity in the wall and with the longitudinal and transverse lining ribs facing the concrete pouring cavity. During construction, the panel replaces the built-in back ridge and is anchored on the inner side of the concrete pouring cavity of the wall body. Through the structure and the construction method thereof, the invention provides the ribbed non-dismantling formwork for the concrete building and the construction method thereof, wherein the ribbed non-dismantling formwork is simple in structure, good in effect, convenient to use and high in efficiency.

Description

Ribbed non-dismantling formwork for concrete building and construction method thereof

Technical Field

The invention relates to the technical field of concrete construction engineering, in particular to a ribbed disassembly-free formwork for a concrete building and a construction method thereof.

Background

Concrete buildings are the most common building form in China and consist of basic members such as concrete columns, beams, plates, walls and the like. The form is a basic device for restricting the shape of a concrete member and is generally made of steel plates, aluminum alloy plates, plastic plates and wood plates. The non-dismantling formwork is a new formwork structure form which is popular in recent years, is generally made of inorganic materials and is compatible with concrete. After the member is formed, the template is not removed and is permanently combined with the member. The application of the non-dismantling template greatly saves labor force, improves production efficiency and reduces construction cost.

The concrete member is composed of concrete and a reinforcing steel bar system, and the reinforcing steel bar has the characteristics of high strength and easy corrosion, and needs to be protected by concrete with a certain thickness, which is generally called as the thickness of a reinforcing steel bar protective layer. According to the requirements of the design specifications of China, the thicknesses of the protective layers of different regions and different components are different, such as: walls, panels are typically 15mm, beams and columns are 25 mm, etc. After the thickness of the steel bar protective layer is determined, the steel bar protective layer is generally realized by the protective layer cushion blocks, namely, the steel bar and the template are supported by the cushion blocks, and the steel bar protective layer is naturally formed after concrete pouring is finished.

The existing non-dismantling template is of a flat plate structure, namely: a thin plate with smooth two sides.

Technical drawbacks of the flat plate structure:

1. the rigidity is small: the flat plate structure has small rigidity, and the stability and the deformation of the template can be ensured only by needing more back ridge supports;

2. poor adhesion force: the inner surface of the template bonded with the concrete is smooth, the bonding force is poor, and the template is easy to crack, so that engineering accidents are caused;

3. the cushion block of the member steel bar protective layer is difficult to treat: the component steel bar protection layer is solved by independent cushion blocks, namely: before the installation of the disassembly-free template, a protective layer cushion block needs to be bound at a specified position on a steel bar so as to meet the thickness requirement of the steel bar protective layer of a component, the cushion block is bound temporarily, the cushion block is easy to move away and fall off, the template is not easy to find after being closed, and the phenomenon of template depression is often caused.

4. The installation procedure is complex: the method is mainly characterized in that the process of processing the thickness of the steel bar protective layer of the component is complex, a plurality of cushion blocks are arranged, and the manufacturing cost is high; the cushion blocks are few and easy to deform; after the plate is sealed, the cushion block is found to move away and fall off, and the template and the cushion block are required to be detached again for secondary adjustment.

Disclosure of Invention

The invention aims to solve the problems of small rigidity, poor adhesive force and complex use of the existing flat plate structure, and provides a ribbed non-dismantling formwork for a concrete building and a construction method thereof, wherein the ribbed non-dismantling formwork is simple in structure, convenient and flexible.

In order to achieve the purpose, the invention provides the following technical scheme:

the ribbed non-dismantling formwork for concrete building includes one panel with longitudinal and transverse lining ribs in criss-cross arrangement on one side, and the panel is installed to the side of concrete pouring cavity in the wall and with the longitudinal and transverse lining ribs facing the concrete pouring cavity. The structure has high strength and convenient construction.

Preferably, the positions of the lining longitudinal ribs and the lining transverse ribs correspond to the positions of member steel bars in the concrete pouring cavity of the wall body, and the lining longitudinal ribs and the lining transverse ribs are tightly attached to the member steel bars. The lining longitudinal ribs and the lining transverse ribs replace the cushion blocks of the steel bar protection layer.

Preferably, the inner side surface of the wall concrete pouring cavity is attached to the anchoring panel, and the outer side surface of the wall concrete pouring cavity is provided with an external back edge. A panel is used instead of a built-in back ridge.

Preferably, the panel, the lining longitudinal rib and the lining transverse rib are of an integrated structure. Ensures the strength of the whole panel

Preferably, the height of the lining longitudinal rib is the same as that of the lining transverse rib, and is equal to the thickness of the concrete construction steel bar protection layer. The heights of the inner lining longitudinal ribs and the inner lining transverse ribs are set according to the thickness of a concrete construction steel bar protection layer.

Preferably, the panel and the lining longitudinal rib are made of cement fiber boards, and the lining transverse rib is compatible with concrete.

The method for constructing by using the ribbed non-dismantling formwork for the concrete building comprises the following steps:

1) binding the concrete member reinforcing steel bars;

2) selecting to lay non-dismantling formworks with different rib heights according to different types of components;

3) cutting a non-dismantling template: determining the size of each face template according to the size and the shape of the component;

4) laying a dismantling-free template: laying according to a designed back ridge form;

4.1), a built-in back ridge: fixing the disassembly-free template in a straight anchor mode;

4.2), external dorsal bar: perforating, sleeving and fastening, and adopting a traditional process;

5) and pouring concrete: the traditional process;

6) and concrete curing: the traditional process;

7) the outer back edge is removed, and the process of the built-in back edge does not need to be removed;

8) and appearance finishing: sealing holes and plastering;

9) and finishing.

The beneficial effects of the invention are:

1. the panel thickness of the non-dismantling template is reduced, and the manufacturing cost is reduced;

3. the lining longitudinal ribs and the lining transverse ribs are additionally arranged, so that the rigidity of the template is increased, and the use amount of the back ridges is reduced;

3. the lining longitudinal ribs and the lining transverse ribs directly replace the reinforcing steel bar protective layer cushion blocks, so that the manufacturing cost is reduced, and the engineering quality is ensured;

4. the anchoring force of the non-demolition mould and the concrete is enhanced: the longitudinal ribs and the transverse ribs are crossed to form grooves, so that the engaging force with concrete is better;

5. the concrete members of different types adopt the disassembly-free templates with different rib heights to directly lay the ribbed templates, thereby greatly improving the construction efficiency.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

fig. 2 is a cross-sectional view of fig. 1.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

A ribbed non-dismantling formwork for concrete buildings and a construction method thereof comprise a panel 1, wherein the inner surface and the outer surface of the panel 1 are in contact with concrete, and the outer surface is a finish coat of the formwork. The inner surface of the panel 1 is provided with lining longitudinal ribs 2 and lining transverse ribs 3 in a criss-cross manner, and the panel 1, the lining longitudinal ribs 2 and the lining transverse ribs 3 are of an integrated structure and are prepared from materials compatible with concrete, such as cement fiber boards and the like.

The inner face laminating of panel 1 is installed in wall body concrete placement chamber side, and panel 1's inside lining longitudinal rib 2 and inside lining transverse rib 3 adopt the fixed panel 1 of straight anchor mode towards the concrete placement chamber. The positions of the lining longitudinal ribs 2 and the lining transverse ribs 3 correspond to the positions of component steel bars in a wall concrete pouring cavity, and the lining longitudinal ribs 2 and the lining transverse ribs 3 are tightly attached to the component steel bars. The lining longitudinal ribs and the lining transverse ribs replace the cushion blocks of the steel bar protection layer.

The height of the lining longitudinal ribs 2 is equal to that of the concrete construction steel bar protection layer, and the height of the lining longitudinal ribs 2 is equal to that of the lining transverse ribs 3. Such as: the thickness of the reinforcing steel bar protective layer of a concrete wall and a concrete slab in a general area is 15mm, and the height of the form-removal-free lining rib is 15 mm. The rib widths, the rib intervals and the thicknesses of the panels 1 of the lining longitudinal ribs 2 and the lining transverse ribs 3 are determined according to the material of the template and the design specification requirements.

The method for constructing by using the ribbed non-dismantling formwork for the concrete building comprises the following steps:

1) binding the concrete member reinforcing steel bars;

2) selecting to lay non-dismantling formworks with different rib heights according to different types of components;

3) cutting the non-dismantling template: determining the size of each panel template according to the size and the shape of the component;

4) laying a dismantling-free template: laying according to a designed back ridge form;

4.1), a built-in back ridge: fixing the disassembly-free template in a straight anchor mode;

4.2), external dorsal bar: perforating, sleeving and fastening, and adopting a traditional process;

5) and pouring concrete: the traditional process;

6) and concrete curing: the traditional process;

7) the outer back edge is removed, and the process of the built-in back edge does not need to be removed;

8) and appearance finishing: sealing holes and plastering;

9) and finishing.

Claims (7)

1. The utility model provides a template is exempted from to tear open in ribbed for concrete building which characterized in that: including panel (1), the one side vertically and horizontally staggered of panel (1) is equipped with inside lining longitudinal rib (2) and inside lining horizontal rib (3), panel (1) laminating install in wall body concrete pouring chamber side, inside lining longitudinal rib (2) and inside lining horizontal rib (3) of panel (1) are towards concrete pouring chamber.

2. The disassembly-free ribbed formwork for concrete buildings according to claim 1, characterized in that: the positions of the lining longitudinal ribs (2) and the lining transverse ribs (3) correspond to the positions of member steel bars in a wall concrete pouring cavity, and the lining longitudinal ribs (2) and the lining transverse ribs (3) are tightly attached to the member steel bars.

3. The disassembly-free ribbed formwork for concrete buildings according to claim 1, characterized in that: the inner side surface of the wall concrete pouring cavity is attached to the anchoring panel (1), and the outer side surface of the wall concrete pouring cavity is provided with an external back edge.

4. The disassembly-free formwork with the rib for the concrete building as claimed in claim 1, wherein: the panel (1), the lining longitudinal rib (2) and the lining transverse rib (3) are of an integrated structure.

5. The disassembly-free ribbed formwork for concrete buildings according to claim 1, characterized in that: the heights of the lining longitudinal ribs (2) and the lining transverse ribs (3) are the same and equal to the thickness of the concrete construction steel bar protective layer.

6. The disassembly-free ribbed formwork for concrete buildings according to claim 1, characterized in that: the panel (1), the lining longitudinal rib (2) and the lining transverse rib (3) are cement fiber boards.

7. The method for constructing the ribbed non-dismantling formwork for the concrete building, which is characterized by comprising the following steps of:

1) binding the concrete member reinforcing steel bars;

2) selecting to lay non-dismantling formworks with different rib heights according to different types of components;

3) cutting the non-dismantling template: determining the size of each panel template according to the size and the shape of the component;

4) laying a dismantling-free template: laying according to a designed back ridge form;

4.1), a built-in back ridge: fixing the disassembly-free template in a straight anchor mode;

4.2), external dorsal bar: perforating, sleeving and fastening, and adopting a traditional process;

5) and pouring concrete: the traditional process;

6) and concrete curing: the traditional process;

7) the outer back edge is removed, and the process of the built-in back edge does not need to be removed;

8) and appearance finishing: sealing holes and plastering;

9) and finishing.

Images