Metal formwork. Large-panel steel wall formwork. Formwork material

Metal formwork is an ideal solution for both low-rise and high-rise construction!

Depending on the material of manufacture, it is customary to distinguish several types of formwork. Each of them has its own advantages, but the most popular is collapsible metal formwork (inventory). It ensures maximum quality of concrete casting and allows you to reduce the construction budget. Below we will dwell on this in more detail.

Specifications

— Low moisture absorption. Unlike wood, metal does not absorb moisture, this allows the concrete to harden at an optimal speed, acquiring maximum strength and uniformity.

— No roughness on the working surface. Metal formwork panels have a perfectly smooth contact surface. This feature guarantees high quality concrete casting and eliminates the need for subsequent grinding.

— High strength. Special high-strength locks are used to connect all structural elements. They ensure the structure's resistance to the most severe operating loads.

— Quick assembly and dismantling. Installation of metal formwork and its subsequent disassembly is so simple that even novice builders can cope with this task. A prerequisite is high-quality lubrication of all contact surfaces with a separating lubricant. This will prevent concrete from sticking and make the dismantling process as quick and simple as possible.

- Cost-effective in the long term. Although the price of metal formwork is high, if it is used repeatedly, it pays for itself very quickly and allows you to reduce the budget for construction work. If you follow basic rules of care and maintenance, this type of formwork can easily withstand several hundred work cycles. It is not afraid of corrosion processes, temperature changes and deformations.

Perhaps the only drawback is that the installation of metal formwork in most cases is carried out using special lifting equipment. This is due to the high mass of the shields. Of course, there are options for formwork made from light aluminum alloys, but they are not suitable for commercial use.

Installation of metal formwork

Metal formwork includes the following structural elements:

• A set of panels, after installation of which the required shape is formed for pouring concrete.
• A set of fasteners that ensure reliable fixation of all formwork elements.
• Various auxiliary elements for solving highly specialized problems.

Inventory metal formwork there are several types:

• Typically used for casting large-scale concrete structures with simple geometric shapes. It gained the greatest popularity in the construction of foundations and long monolithic walls.

Large panel inventory metal formwork

• This type of formwork was developed for creating small concrete products with complex shapes.

Small panel inventory metal formwork

• Used for shaped concrete casting. Often used in the manufacturing process of various small architectural forms.

Prefabricated metal formwork: installation

Although inventory metal formwork is a fairly simple product, it definitely requires proper installation. First of all, craftsmen should select the optimal type of formwork system, taking into account all the technical features of the future concrete structure. In general terms, the installation procedure is as follows:

• preparation of the construction site;
• delivery of all components to the site;
• temporary fastening of structural formwork elements;
• alignment of the formwork system in vertical and horizontal planes;
• rigid fixation of panels and auxiliary elements using the included fasteners;
• laying reinforcing elements into the prepared form.

If all installation rules are followed and the performers have some experience, you can create an ideal form for pouring concrete without gaps at the joints. This will prevent concrete leakage and will allow us to produce a monolithic concrete product of the highest quality.

Metal formwork for foundation

It is distinguished by its large shield size and can easily withstand the enormous pressure of the concrete mixture. Can be made from either steel or aluminum. Installation requires the use of specialized construction equipment. Metal prefabricated formwork for foundations is common in both low-rise and high-rise construction.

Formwork for walls

It is practically no different from foundation formwork, with the only difference being that increased demands are placed on the quality of execution of its structural elements. With its help, you can quickly fill straight and shaped vertical structures of great height.

Column formwork

Collapsible metal formwork for columns is used in the process of casting products over 3 meters high. With its help you can create columns of square, cylindrical, oval and other complex shapes. Depending on the design and quality of service, such systems can easily withstand from 10 to 300 operating cycles!

Floor formwork

The dimensions of metal floor formwork are adjusted individually for each object. It allows you to cast rectangular, cantilever and round floors. If all installation rules are followed, this formwork system makes it possible to create structures with a high-quality front surface that does not require further finishing. Depending on its design, floor formwork can be:

• frame;
• on telescopic stands;
• on volumetric racks.

Permanent metal formwork

In some cases, professionals use a permanent formwork system. Its essence lies in the fact that after pouring concrete it is not dismantled, but remains as a supporting element. This type of formwork can serve as waterproofing, insulation or a decorative external covering. It is easy to install and does not require heavy lifting mechanisms.

Advantages and application of metal formwork in monolithic construction

The scope of application is practically unlimited. With its help, you can cast foundations, erect walls, ceilings, columns, build bridges and tunnels. The main advantage is the possibility of repeated use. A metal formwork system can significantly reduce construction costs. Due to the high speed of installation and dismantling, the construction time of buildings is significantly reduced. If you have the necessary components, metal formwork allows you to create an airtight form for pouring shaped concrete products.

Rent of metal formwork

Once again, the use of metal formwork systems is justified and economically feasible for large-scale or commercial construction. Their cost is quite high, but it pays for itself many times over in several work cycles. For one-time use, the best option would be to rent metal formwork.

Offers to rent absolutely any type of formwork at reasonable prices. We independently deliver all the necessary components and calculate the formwork configuration, taking into account all the technical nuances of the future structure. Next, our craftsmen independently carry out assembly and dismantling.

Any rented metal formwork complies with GOST and is in impeccable technical condition. Discounts are provided for regular customers. Contact us!

Metal formwork is an effective design for arranging the foundation and walls of buildings. Thanks to its use, the appearance of defects at the joints is eliminated. This is almost impossible to avoid when installing wooden formwork.

The main design element is shields. For their fastening, slopes, racks and struts are used. The deck is the main part of the structure. It comes into contact with the concrete surface. The type of building being erected and the design load are the main factors affecting the strength of the formwork.

Formwork is divided into:

• removable;
• non-removable.

The removable structure is removed after pouring and hardening the concrete solution. This formwork can be used several times. Its inner surface, which comes into contact with the concrete, should be as smooth as possible. Scope of application - construction of several monolithic structures with different configurations.

Permanent formwork is constructed in combination with thermal insulation material. In most cases, this design is a hollow block with grooves that connect adjacent elements. The main area of ​​use of non-removable products is the construction of walls.

To produce metal formwork for foundations, materials such as steel or aluminum are used. The steel structure is more resistant to mechanical stress. But it is susceptible to corrosion. The aluminum frame is lightweight and will last much longer. But his device is more expensive.

Design characteristics

To create metal formwork, sheets 1-2 mm thick are used. Despite the high cost, the use of this material has its advantages. These include:

• foundation installation of any configuration;
• additional waterproofing;
• versatility;
• creating a completely smooth surface;
• ideal for monolithic and strip foundations (due to reinforcement welded to the formwork);
• simplicity of cladding (with a significant elevation of the base of the house above the ground);
• maximum rigidity;
• ease of installation work.

Steel formwork has the following technical characteristics:

• shield height - 0.6-3 m;
• their width is 0.25-1.2 m;
• frame turnover - up to 300 cycles, deck - up to 80 cycles;
• deflection - no more than 1/400 of the span;
• concrete pressure - 75-80 kPa.

The frame of the panels is a closed contour, for the manufacture of which 2 types of profiles are used: rectangular (for stiffeners) and edge (located along the perimeter of the panels). To create the deck, plywood is used, which is up to 2 cm thick.

Preparatory work

When laying the foundation, it is necessary to take into account the freezing depth of the soil. For this reason, steel formwork must be laid to a depth of at least 0.7-0.8 m.

To carry out the work efficiently, you will need the following materials and tools:

• ready-made shields;
• wooden pegs;
• dye;
• hammer;
• brush;
• spanners;
• screwdriver;
• pliers;
• mounting grip;
• struts;
• leveling beams;
• building level;
• plumb line;
• roulette;
• wire;
• special locks (extended and wedge);
• brackets;
• kingpin;
• coupling screws;
• plastic tubes and cones;
• nuts and washers;
• traffic jams.

At the preliminary stage, surface marking is carried out. The correct location of the foundation axes is checked using a tensioned wire. And formworks are made using plumb lines that are lowered from a wire.

Before the aluminum formwork is installed, beacons must be installed. They are wooden stakes that are driven flush with the base. Marks are made on the lighthouses with paint, which should be used as a guide when installing shields and supporting elements.

The following requirements apply to the installation site:

• it must be cleared of debris and dirt;
• the surface is leveled by cutting off the protruding bumps;
• installation of panels is carried out without adding soil;
• supporting elements of the structure are installed only on a fixed base (without seasonal soil movements).

The part of the formwork that will come into contact with the concrete surface is coated with a special lubricant. This improves the adhesive properties of the coating and ensures reliable protection of the formwork from environmental influences (corrosion, frost).

Stages of installation work

You can assemble the structure yourself. But aluminum formwork for rent is also a good option. Installation can be carried out using either individual panels or pre-assembled panels (but no more than 5-6 panels measuring 3x1.2 m).

The elements are connected using coupling screws (with washers and nuts), which are threaded into conical holes in the shield frames. It is recommended to place the tightening screws in a plastic tube. This ensures their reliable protection from the influence of concrete. The length of the plastic tube must correspond to the thickness of the wall being built.

When installing wall formwork with one tier using panels 1.2-2.5 m high, 2 height screws are sufficient. If the structure is erected from 2 tiers with panels over 2.5 m high, then there should be 3 tension screws on each side. Unused holes are closed with plugs or plastic cones.

Adjacent panels are connected using locks. Their number depends on the height of the elements and the proximity of the joint to the outer corner. When the outer shield is attached, pins are used instead of locks. Horizontal parts are fixed using tightening screws.

To connect the additional elements with the main panels, 2 wedge locks are installed. When installing a structure that is too high (over 2.5 m), the connection to the main panels occurs using wedge locks and leveling beams with pins. Their number depends on the width of the additional panel.

Often, when constructing wall formwork, the panels are connected by additional inserts. If the size of the additional insert is less than 0.2 m, then universal locks are used to secure them. When installing inserts longer than 0.2 m, locks and leveling beams must be used. The use of additional inserts guarantees maximum tensile strength of the structure.

First, the installation of external panels is carried out, for fixing which struts are used. After which the internal panels are attached. Slinging of the structure is done using a mounting grip. Each panel is lifted by 2 points.

The quality of installation work is evidenced by:

• correct fastening of embedded elements;
• tight joints of formwork parts with a concrete surface and additional elements;
• reliable fixation of struts and brackets;
• coincidence along the axes of the horizontal and vertical parts of the formwork.

As for the installation of a metal structure, differences in surface heights of no more than 2 mm are allowed.

The concept of “formwork” implies an auxiliary building structure intended for the construction of important elements of the structure. Metal formwork is used, as a rule, in the construction of reinforced concrete buildings with high performance characteristics. The purpose of the formwork is to ensure reliable waterproofing of the foundation, protecting the concrete layer of the walls from abrasion and premature destruction.

Technological characteristics of formwork

Along with the arrangement of the foundation and supports of the building, in some cases formwork is used to install the load-bearing elements of the above-ground part of the structure: columns, ceilings and walls. The defining property of any formwork is its easy dismantling without damaging the hardened layer of concrete and free movement from rack to rack when using floating technologies.

To prevent the concrete mixture from sticking and hardening on formwork sheets, experts recommend using special fastening and fixing devices in combination with special lubricants.

General features of installation of formwork systems

Modern manufacturers produce a huge number of types of metal formwork systems, differing from each other in fastening devices and installation features. The second name for such technologies is inventory formwork.

Metal formwork is assembled from individual panels

The optimal type should be selected depending on the purpose and structural characteristics of the elements being built: foundation, wall, ceiling, etc. As a rule, the formwork kit includes the following elements:

• a row of shields;
• fastening devices;
• holding and additional devices.

The finished kit should allow the construction of the structure within the prescribed time frame.

For each formwork set, the manufacturer issues a technical passport reflecting the purpose of the set, the main properties and specifics of the components. The relevance of purchasing such sets increases significantly with the reusable use of formwork in large-scale construction.

To store formwork devices during regular installation and dismantling, it would be useful to prepare a special platform located at an equidistant location from the elements being erected.

The installation procedure of the formwork system includes the following operations:

• capturing and moving the formwork panel to the installation site;
• temporary fixation of a composite element;
• alignment of surface horizontals and verticals;
• final fastening using fasteners and holding auxiliary devices.

Accordingly, the dismantling procedure involves performing the reverse sequence of actions. If formwork kits are used frequently cyclically, it is recommended to carry out an external inspection, cleaning of working surfaces from adhering dirt, partial repairs and lubrication before installation.

Advantages of metal formwork

Metal formwork is highly durable and easy to dismantle

Metal formwork for the foundation is characterized by the following defining advantages:

• the ability to produce a perfectly flat wall surface;
• ease of operation (short dismantling time and quick assembly of metal formwork are due, respectively, to pre-lubrication of sheets and production of components in the factory);
• required rigidity (under the influence of relatively high pressure, metal panels do not bend, maintaining the ideal shape of the part of the structure being equipped);
• high turnover or reusability (the service life of metal sheets is limited only by such a property as metal fatigue, but its manifestation is possible only after a significant period of time of regular use of such material).

If you need to use formwork sheets one-time, it is recommended to use the rental services of metal products. In this case, the maximum quality of the constructed foundation surfaces will be achieved without significant cash injections.

Like any building material, metal has a significant drawback - it is the most expensive raw material. Despite this, recently the popularity of using metal formwork has been constantly increasing due to the fact that the presented disadvantage is more than compensated by the advantages of this material.

Types of formwork structures

Transom formwork consists of panels, ties and struts

Currently, types of foundation formwork containing metal products are widely used in large-scale construction. The most common of them are the following types:

• beam-transom;
• large-shield;
• small-shield;
• formwork-cladding.

The question of choosing the optimal type of formwork system largely depends on taking into account the technologies and rules for installing structures, as well as the technical and financial capabilities of the developer.

Beam-transom view

Transom formwork is often used for pouring columns

In most cases, the presented type of formwork is used in the manufacture of monolithic or prefabricated monolithic structures. With its help, floor slabs, load-bearing walls, column elements and foundations are formed.

The use of beam-transom technology is due to the possibility of creating an ideal concrete surface both in the straight direction and in a certain shape, with the required curvature.

At the same time, the increased strength of the formwork structures makes it possible to equip columns of various sections and areas, which makes the presented technology indispensable in the construction of structures replete with a variety of architectural elements.

The advantages of the studied species include:

• moderate lightness of construction;
• ease of wall installation and the ability to combine components;
• high dismantling speed;
• possibility of repeated use without intermediate cleaning procedures;
• Possibility of use in combination with other formwork technologies.

Large panel type

The formwork system for the foundation of the presented type includes a collapsible and non-demountable profile made of aluminum and steel. Laminated pressed wood (plywood) with a sheet thickness of up to 18 mm was chosen as the material for the formwork panels.

Large panel formwork is used for the construction of walls and ceilings

The finished structure is assembled from wooden panels, connected at any angle to each other using hinged elements. Permissible load – 8,000 kg/sq.m. The connection and alignment of the formwork sheets is carried out using wedge-shaped locks. The mentioned fastening elements are fixed in a special groove located on the inside of the boards, along the future walls. Subsequently, the collected number of shields is reinforced and tightened with a special pin and a set of nuts.

The shape of the panel elements allows for interchangeability, as well as the possibility of installation in both vertical and horizontal positions, which provides wide functionality for such a formwork system.

Among the advantages of large-panel formwork, the following should be highlighted:

• technological flexibility;
• moderate installation speed;
• ease of arrangement of floors and sanitary facilities.

Disadvantages of the presented type:

• the difficulty of uniform placement of the concrete composition;
• a significant amount of manipulation of special equipment.

Large panel formwork finds its application in the construction of massive housing structures and civil buildings.

Small panel type

A distinctive feature of this technology in comparison with the large-panel type is the dimensions of the components. The main advantage of a small-panel temporary structure is the ability to create any small architectural form for pouring concrete.

Moderate lightness and small sizes of the components make it possible to carry out installation with your own hands without the use of special equipment in both the vertical and horizontal directions, which significantly saves the budget and allows you to build elements of almost any shape.

Watch a video of how small-panel type formwork systems are installed.

Just like in previous types, all components are manufactured in the factory, which ensures high quality connecting seams. In this regard, the presented inventory formwork finds its application in private construction, especially when constructing a foundation.

Conclusion

Inventory formwork is one of the effective types of formwork systems, which allows you to build the necessary structural element: a foundation or a wall, with high quality and in the shortest possible time. During installation of the presented type, it is necessary to focus on the accuracy of the assembly. When starting concreting, special attention should be paid to checking the reliability of the locks and contacts of the coupling devices.

Competently following the instructions, suggested advice and the requirements of regulatory documents will guarantee the reliable functioning of the structure being built.

The product is delivered to order. The price depends on the specific quantity, size and components. Submit your request for a full quote

Steel panels for the construction of straight monolithic walls are universal, mounted in both horizontal and vertical positions. Quickly and conveniently connected with locks. Panels or simply panels are transported using a construction assembly grip using slings. The opposite wall panels are secured using screw ties with nuts.

The shields have a height of 3.0m
Width from 0.20m to 1.2m

For monolithic construction, the following materials are used for removable formwork:

1. Steel;
2. Wood;
3. Plywood;
4. Aluminum;

Steel formwork

It looks like even, smooth panels; they are bolted to the frame. Such formwork reduces the construction period and does not allow concrete to pass through at the junction of elements.

Design parameters:

• Powder-coated steel is used to construct the structure. The deck is made of steel sheet with a thickness of at least 2 mm.
• A 12 cm steel profile is intended for the construction of walls with a thickness of no more than 70 cm and columns with a cross-section of no more than 100 cm. The panels can be placed in any order for various building configurations.

1. Height – from 60 cm, but not more than 330 cm;
2. Width from 25 cm, but not more than 240 cm;
3. The pressure exerted on the formwork by concrete is 78.4 kPa;
4. Weight of 1 m2 of shield 52 kg;
5. Profile frame width – 12 cm;
6. Permissible deflection – 1/400;
7. The operational period of the deck is no less than 80 cycles, the main frame is no less than 500 cycles;

Advantages

• Resistance to temperature changes and humidity;
• High quality of the resulting structure;
• High strength, rigidity and reliability;
• Durability (withstands more than 1000 cycles);
• Good adhesion to the concrete surface;
• Can be used at any time of the year;

Shield options. Shields can also be made to individual sizes:

Accessories for wall formwork
Name	Height, m	Width, m
Linear boards
Linear shield 0.40
Linear shield 0.45
Linear shield 0.50
Linear shield 0.55
Linear shield 0.60
Linear shield 0.65
Linear shield 0.70
Linear shield 0.75
Linear shield 0.80
Linear shield 0.85
Linear shield 0.90
Linear shield 1.00
Linear shield 1.10
Linear shield 1.20
External corner panels
Corner shield 0.40
Corner shield 0.50
Corner shield 0.60
Internal corner panels
Corner shield 0.30*0.50
Corner shield 0.30*0.30
Corner shield 0.40*0.40
Hinged shield
Hinged shield 0.10*0.10
Hinged shield 0.30*0.30
Hinged shield 0.50*0.50

Steel panel formwork - buy at a good price in Moscow. All wall formwork is of high quality and has a manufacturer's warranty. Steel panel formwork - order online on the Industrialist website

Terms and cost of delivery

information about delivery

Pickup.

Products are shipped by pickup from a warehouse in Krasnodar, Rostov-on-Don, Perm, Pyatigorsk, Simferopol, Grozny or Moscow, at the client’s choice.

The company's warehouses are conveniently located in close proximity to federal highways, so you don't have to waste time in city traffic jams. The presence of lifting and transport equipment and a team of qualified personnel guarantees minimal loading time. Delivery throughout the city and region.

Having its own rolling stock, the Industrialist company is ready, by prior agreement, to provide preferential delivery of its products within the Russian Federation, as well as free delivery upon agreement with the manager.

Delivery to the transport company terminal:

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BORA - FORMWORK OF THE EUROPEAN LEVEL

• Profile made of low alloy steel S355MC produced by VOESTALPINE (Austria).
• The corners of the shields are reinforced with cast elements.
• Guaranteed 600 concreting cycles.
• Corresponds to class I according to GOST R 52085-2003
• The maximum permissible pressure of laid concrete is 90 kN/m2.
• The maximum deflection of the shields is no more than 1/400 of the span.
• Pouring concrete structures up to 3.6 m high without speed limitation.
• Symmetrical boards 3.0 m, including linear boards 2.4 m wide.
• Plywood deck with plastic coating (optional).
• Convenient and quick installation.
• High quality assembly and painting.

TECHNICAL SOLUTIONS

High-quality Austrian VOESTALPINE profile made of high-strength micro-alloy steel S355MC according to DIN EN 10149-2-95. The strength of this steel is 40% higher compared to Steel 20.

Shields 2.4m wide

• This design has better technical characteristics in relation to other elements (in particular, deflections are less compared to other elements).
• Optimal dimensions for transportation, a width of 2.4 m fits normally in vehicles.
• Fewer components used per 1 sq.m of formwork area.
• During installation, there is no need to install plugs in the holes, because Ties pass through all the holes.
• The panels are very advantageously positioned in any direction, which allows you to have 2 heights and widths of the formwork.

All BORA formwork panels are made with a quality that exceeds the requirements for class 1 formwork according to GOST R 52085-2003 "Formwork. General technical conditions."

​An angle of 30 degrees under the lock is most optimal for leveling, mating and ensuring tightness. The profile has a side to protect the edge of the plywood; the space between the side and the plywood is filled with sealant. The presence of a conical bushing allows you to install the screed at an angle of 5 degrees in any direction. This significantly reduces installation time and improves ease of assembly, directly reducing your costs.

Features of the design of formwork panels

Shield design Calculation diagram

The frame is welded using a robotic complex, which guarantees particularly high quality and strength.

The 3m high panels are absolutely symmetrical, which eliminates errors when installing formwork and increases the convenience and speed of formwork assembly.

Comfortable handles make the work of formwork installers easier and provide the necessary safety.

We are convinced that it is possible to create high-class formwork only from high-quality materials, using modern production technologies and innovative design solutions. BORA is the ideal geometry of elements, manufacturability and durability.

Calculation of formwork panels is carried out in accordance with GOST R52085-2003.

Deflection diagram Stress diagram

We have designed a reliable system that meets the needs of modern construction. With changes in the materials used for monolithic construction (for example, when using self-compacting concrete), the load on the formwork structures increases. The ability to use high-strength materials allows you to achieve the best results.

A rectangular distributed load of 90 kN/m2 was taken as the design load. Calculations and tests of the system showed that all technical indicators correspond to acceptable values.

The formwork can withstand pouring concrete up to 3.6 m high without speed limitation.

The frame design is reinforced with cast corners. The recess is designed to conveniently push the panels into the mounting level using a steel crowbar.

Formwork components

Optionally, it is possible to manufacture a deck of panels from plywood with a plastic coating with a thickness of 1.6 mm. A plastic-coated deck is more mechanically resistant ical damage and has a service life 2.5-3 times longer than a deck made of laminated plywood.

Cast locks for connecting BORA formwork panels are manufactured by ARI Ltd. on European quality equipment.

• The KRAMOS cast wedge lock ensures smooth connection of panel boards.
• ​The leveling wedge lock of the formwork ensures better mating of the panels and allows you to install up to 100 mm between the panels.

​

• The extended KRAMOS lock provides connection between panels and extensions up to 250mm.

The quality of the interfaces of all surfaces of the formwork panels determines the production of an excellent concrete surface, as well as a reduction in the cost of additional components, for example, the number of struts used to level the panels.