RU147740U1 - FIXED WALL FORMWORK - Google Patents

Abstract

Non-removable wall formwork containing a vertical diaphragm, external and internal formwork panels, characterized in that the vertical diaphragm is made in the form of a spatial truss of light steel thin-walled structures of the C-shaped profile, holes are made in the elements of the spatial truss to accommodate additional supporting reinforcement, and the external and inner formwork panels are made of universal modular elements, each of which is made in cross section in the form of an open trapezoid, small base Contents which is a base-shelf, and the larger base of the trapezoid open-formed flanged, with the external and internal formwork panels are symmetrical with respect to each other, for which purpose modular elements small bases, shelves placed towards each other, and the large bases - outwardly.

Description

The utility model relates to the field of construction, namely to the erection of the walls of a building using fixed formwork, and can be used in the design and construction of reinforced concrete monolithic walls of low-rise buildings, cottages and other buildings.

Known fixed formwork according to the patent of the Russian Federation No. 116528, class. E04B 2/86, 2012, containing two opposed plates, one external and one internal, fastened by at least two jumpers and forming a space for filling with a fluid material capable of hardening, the external plate is made of polystyrene foam, and the inner plate is made of glass-magnesium sheet and connected to the outer plate with plastic jumpers.

However, this formwork is a construction suitable to a greater extent for the construction of light, or lightweight walls, not bearing and internal.

Known formwork for the construction of monolithic walls of low-rise buildings according to the author's certificate of the USSR No. 1673716, class. E04G 9/02, adopted by the applicant for the prototype. It includes external and internal formwork panels, vertical diaphragms. In order to expand technological capabilities through the use of low-quality concrete and production waste, after installing external formwork panels, vertical diaphragms from materials of low thermal conductivity are attached to them, to which internal formwork panels are connected. Vertical diaphragms are fixed evenly along the walls being erected.

When concreting a wall using the said formwork, although it is used in the construction of reinforced concrete monolithic walls of low-rise buildings, there is an increased consumption of concrete mix.

The technical task of the proposed utility model is to increase the productivity of the work, reduce the complexity, reduce the consumption of concrete mix while maintaining a given load-bearing capacity during the construction of monolithic walls.

The problem is solved in that in the proposed solution, the vertical diaphragm is made in the form of a spatial truss from light steel thin-walled structures of a C-shaped profile, holes are made in the elements of the spatial truss to accommodate additional supporting reinforcement, and the outer and inner formwork panels are made of universal modular elements, each of which is made in cross section in the form of an open trapezoid, the small base of which is a base-shelf, and a larger base s trapezium formed unclosed flare, wherein the outer and inner formwork panels are symmetrical with respect to each other, for which purpose small bases modular elements, shelves placed towards each other, and the large bases - outwardly.

The technical result from the use of the proposed utility model is that when erecting a monolithic wall, the consumption of concrete mixture is reduced while maintaining the given bearing capacity of the monolithic wall, the formwork work is reduced, the material consumption and the cost of the building and structure are reduced.

In FIG. 1 - layout of the vertical diaphragm and formwork panels during the construction of walls, side view;

in FIG. 2 - a fragment of the erected monolithic wall, top view;

in FIG. 3 - a universal modular element, from the required number of which they perform the assembly of external and internal formwork panels;

in FIG. 4 - vertical diaphragm made in the form of a spatial truss;

in FIG. 5 is a view A in FIG. four.

Until now, for the construction of foundations, grillages, ceilings and coatings, as well as walls, removable and fixed formwork made of reinforced concrete, reinforced cement and glass-cement slabs, fiber concrete, expanded polystyrene (see the Guidelines for the construction of formwork and the production of formwork. - M. Stroyizdat , 1983, pp. 153-171, Fig. 86, “a”).

However, such elements of fixed formwork have a sufficiently large mass and lifting mechanisms are required for their installation.

Industrial formwork systems are known, but they are not universal enough in application and are mainly used with lifting mechanisms (see. Anpilov S.M. Technology for the erection of buildings and structures from reinforced concrete. Textbook. - M .; Publishing House of the Association of Building Universities, p. 36-258, pp. 151-159, Fig. 2.2.36-2.2.40. ISBN 978-5-93093-590-5)

The use of modular elements of fixed formwork allows the production of building structures with various planning solutions.

The manufacture of modular elements of fixed wall formwork does not require a significant material and technical base. The light weight of the elements makes it possible to install them without lifting mechanisms. Installation of ready-made modules allows you to reduce the time during installation of formwork and reduce the cost of work.

For the construction of monolithic walls in the proposed solution, an external formwork panel 1 and an internal formwork panel 2 are used, between which a vertical diaphragm 3 is installed in the design position and fastened to it with the formwork panels 1 and 2. And to ensure the stability of the formwork panels 1 and 2 during concrete laying mixes use temporary vertical racks 4 and 5.

The vertical diaphragm 3 is made by the national team in the form of a spatial truss from light steel thin-walled structures of a C-shaped profile. In the elements of the vertical diaphragm 3, that is, in the spatial truss, holes 6 are made to accommodate additional supporting reinforcement 7. This design is much lighter than the known reinforcing cage, but also strong and reliable, and also provides the given bearing capacity of the erected monolithic wall and formwork.

The vertical diaphragm 3 includes struts 8 and 9, which are interconnected by braces 10. In braces 10, holes 6 are also made to accommodate additional reinforcement 7, or ropes.

The outer 1 and inner 2 formwork panels are made of universal modular elements 11. Each universal modular element 11 is made of galvanized or stainless steel by cold stamping or rolling. It has a cross section in the form of an open trapezoid. The small base of the open trapezoid is a base-shelf 12, and the larger base is made open with flanges 13.

A monolithic wall is erected using a fixed wall formwork as follows.

First, vertical diaphragms 3 are mounted on the base and fixed to the base in the design position. Then, the outer formwork panel 1 and the inner formwork panel 2 are attached to them alternately. Moreover, the outer and inner formwork panels 1 and 2 are assembled symmetrical with respect to each other, for which purpose the universal modular elements 11 are placed towards each other by small base-shelves 12 and large bases - out.

On the side of the outer formwork panel 1 and on the side of the inner formwork panel 2, temporary vertical racks are installed, respectively 4 and 5, to give greater stability to the formwork panels 1 and 2 during the laying of concrete mixture 14. After that, the concrete mixture is laid in the formed molding cavity 14. A after hardening of concrete, temporary vertical posts 4 and 5 are dismantled. A monolithic wall is erected.

Using the proposed technical solution, it was possible to create a fixed wall formwork for the erection of a monolithic wall, which reduces the consumption of concrete mixture while maintaining its specified bearing capacity, reduces the weight of the building, increases the bearing capacity of the wall structure, reduces the complexity of formwork, reduces the material consumption and cost of the building and the structure, and also providing improved tightness and waterproofing properties of the constructed wall.

Claims (1)

Non-removable wall formwork containing a vertical diaphragm, external and internal formwork panels, characterized in that the vertical diaphragm is made in the form of a spatial truss of light steel thin-walled structures of the C-shaped profile, holes are made in the elements of the spatial truss to accommodate additional supporting reinforcement, and the external and inner formwork panels are made of universal modular elements, each of which is made in cross section in the form of an open trapezoid, small base Contents which is a base-shelf, and the larger base of the trapezoid open-formed flanged, with the external and internal formwork panels are symmetrical with respect to each other, for which purpose modular elements small bases, shelves placed towards each other, and the large bases - outwardly.

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