Metal gates. Manufacturing of welded gates Kiev. General specifications Weight of swing metal garage doors

METAL DOORS

General specifications

INTERSTATE SCIENTIFIC AND TECHNICAL COMMISSION
BY STANDARDIZATION, TECHNICAL REGULATION
AND CERTIFICATIONS IN CONSTRUCTION

(MNTKS)

M osqua

Foreword

The Eurasian Council for Standardization, Metrology and Certification (EASC) is a regional association of national standardization bodies of states belonging to the Commonwealth of Independent States. In the future, it is possible for national standardization bodies of other states to join the EASC.

The EASC has an Interstate Scientific and Technical Commission for Standardization, Technical Regulation and Certification in the Field of Construction (MNTKS), which has been granted the right to adopt interstate standards in the field of construction.

The goals, basic principles and basic procedure for carrying out work on interstate standardization are established by GOST 1.0-92 “Interstate standardization system. Basic Provisions "and MSN 1.01-01-96" System of Interstate Regulatory Documents in Construction. Basic Provisions ".

Information about the standard

1 DEVELOPED by JSC TsNIIPromzdaniy and by LLC DoorHan "With the participation of the Center for Certification of Window and Door Technology

2 INTRODUCED by Gosstroy of Russia

3 ADOPTED by the Interstate Scientific and Technical Commission for Standardization, Technical Regulation and Certification in Construction (ISTC) on May 14, 2003

4 INTRODUCED FOR THE FIRST TIME

5 PUT INTO EFFECT from March 1, 2004 as a state standard of the Russian Federation by the decree of the Gosstroy of Russia dated June 20, 2003 No. 78

Information on the entry into force (termination) of this standard and changes to it on the territory of the above states is published in the indexes of national (state) standards published in these states.

Information about changes to this standard is published in the index (catalog) Interstate standards ", and the text of the changes is published in the information indexes" Interstate standards ". In case of revision or cancellation of this standard, the corresponding information will be published in the information index "Interstate standards".

INTERSTATE STANDARD

dateintroduction 2004-03-01

1 area of ​​use

This standard applies to metal gates (gate systems) installed in the wall openings of buildings and structures for various purposes, including garages. It is allowed to extend the requirements of the standard to gate structures used in fencing systems in open areas.

The standard does not apply to lift and sluice gates, special-purpose gates in terms of additional requirements for fire safety, burglary protection, etc., as well as automatic gate drive mechanisms.

The scope of application of specific brands of products is established depending on the operating conditions in accordance with the current building codes and regulations, taking into account the requirements of this standard.

Requirements for the design of safety devices and for the safe operation of the doors are established in the regulatory and technical documentation for specific types of products.

The standard can be applied for certification purposes.

2 Normative references

5.3 Characteristics

5.3.1 The main operational characteristics of the doors are given in the table.

5.3.7 The appearance of the products (color, gloss, surface quality) must correspond to the reference samples approved by the head of the manufacturer.

Surface defects visible to the naked eye from a distance of 1.5 m under illumination of at least 300 lux are not allowed.

The front surfaces of the sandwich panels and aluminum profile elements of the canvases must be protected with a self-adhesive film, removed after the installation of the product.

5.4 Requirements for materials and components

5.4.1 Materials and components used for the manufacture of products must comply with the requirements of standards, specifications, technical certificates approved in the prescribed manner.

5.4.2 Materials and components used for the manufacture of doors must be resistant to climatic influences.

5.4.3 Rubber elastomers and seals installed around the perimeter of the door and between panel elements must be resistant to climatic and atmospheric influences and meet the requirements of GOST 30778.

5.4.4 Drums, hinges, brackets, torsion springs, cables, rollers and other parts must have certificates or other documents confirming the safety of their use at design operational loads.

5.4.5 Aluminum profile elements used for the production of door leaves must comply with the requirements of GOST 22233.

5.4.6 Steel parts of structures should have grades that ensure the strength characteristics of structural elements, welded, bolted and other joints, depending on the nature and conditions of their work.

5.4.7 Wooden glued panels of filling must meet the requirements of GOST 30972, profile molded wooden parts - GOST 8242.

5.4.8 For glazing of door leaves, tempered glass is used in accordance with GOST 30698, laminated glass in accordance with GOST 30826, double-glazed windows in accordance with GOST 24866, as well as glass from polymeric materials in accordance with ND.

5.4.9 Glazing elements are installed on elastomeric gaskets in accordance with GOST 30778, while touching the edges of the glasses to the metal surfaces of structures is not allowed.

5.5 Requirements for locking devices and hinges

5.5.1 In the manufacture of products, locking devices and hinges, specially designed for use in gate structures, are used.

5.5.2 The type, location and method of fastening of locking devices and hinges are established in the working documentation based on the size and weight of the opening elements of the product, as well as the operating conditions of the products, taking into account the requirements established in the technical documentation.

5.5.3 Locking devices must ensure reliable locking of the opening elements of the products. Opening and closing should be easy, smooth, without jamming.

5.5.4 The design and fastening of locking devices and hinges should ensure the impossibility of opening or dismantling products from the outside.

5.5.5 Locking devices, locks, hinges and fasteners must meet the requirements of GOST 538 and have a protective and decorative (or protective) coating in accordance with GOST 9.303.

5.5.6 Locks used to close the gate must comply with GOST 5089.

5.5.7 Panels of sectional doors are connected on one-piece hinges, which are fixed with self-tapping screws or bolted connections.

5.5.8 The force of manual opening and closing, the strength of fastening the handles to the canvas must meet the requirements of the table.

5.6 Factory readiness level and completeness

5.6.1 The complete set of products during their delivery to the consumer must comply with the requirements established in the order (agreement) and agreed with the consumer.

5.6.2 Cloths of products must have installed sealing gaskets and have a protective film on the front surfaces.

5.6.3 In case of delivery of products of incomplete factory readiness, responsibility for the quality of finished products installed by third-party organizations is established in the supply agreement.

5.6.4 The delivery set should include a specification of parts, assemblies and shipping elements of the set, a quality document (passport), as well as instructions for operating the products. The delivery of collapsible products is accompanied by instructions for their assembly.

5.6.5 Locks, locking devices, translucent elements and other component parts included in the product must be accompanied by technical documentation for these products, if provided for by the terms of the contract.

5.6.6 At the request of the consumer, the manufacturer provides him with standard instructions for the installation of products.

5.7 Marking

Each product is marked with waterproof paint or a label (label) indicating the name (trademark) of the enterprise, symbol, date of its manufacture and (or) order number, sign (stamp) confirming the acceptance of products by technical control. The product is usually marked on one side of the web. Marking must be weatherproof and prominently displayed.

Responsible units and products of door systems may have their own markings, as defined in the technical documentation of the manufacturer.

6 Acceptance rules

6.1 Products must be accepted by the technical control of the manufacturer for compliance with the requirements of this standard, as well as the conditions specified in the contract for the manufacture and supply of products. Confirmation of the acceptance of products by the technical control of the manufacturer is their marking, as well as the execution of documents on the acceptance (quality) of products.

Products are accepted in lots or by the piece. When accepting products at the manufacturing enterprise, the number of products manufactured within one shift and issued with one quality document is taken as a batch. The batch size can be taken as the number of products of one design, manufactured according to one order.

6.2 The requirements for product quality established in this standard are confirmed by:

incoming inspection of materials and components;

operational production control;

acceptance control of finished products;

control acceptance tests of a batch of products, carried out by the quality service of the manufacturer;

periodic testing of products in independent testing centers;

qualification and certification tests.

6.3 The procedure for conducting incoming control and operational production control at workplaces is established in the technological documentation.

9.1 Requirements for the installation of products are established in the working design documentation for construction objects, as well as in the standard installation instructions approved by the head of the manufacturer.

9.2 Installation of products should be carried out by specialized construction firms or assembly teams beforeacceptance - the manufacturer of the gate in accordance with the installation instructions for specific types of doors, approved by the head of the manufacturer. The completion of installation work must be confirmed by an acceptance certificate, which includes the warranty obligations of the manufacturer of the work.

9.3 Typical installation instructions for doors should include: drawings (diagrams) of typical installation assemblies;

list of materials and parts used (including fasteners);

the sequence and content of technological operations for the installation of the gate (including construction work);

safety rules during installation and construction work.

9.5 The sag of the curtain of sliding and swing gates and wickets should be no more than 1/250 of the width of the opening.

10 Manufacturer's Warranties

10.1 The manufacturer guarantees the compliance of products with the requirements of this standard, provided that the consumer observes the rules of transportation, storage, installation, operation, as well as the scope established in the regulatory and design documentation.

10.2 The warranty period for the gate is stipulated in the supply contract and the product passport.

(reference)

Examples of designs of various types of gates

1 - load-bearing elements of the frame of the opening; 2 - panel board; 3- the ledge strip with a sealing gasket; 4 - lock; 5 - handle; 6 - gate valve; 7 - loop; 8 - metal profile of the frame (frame) of the canvas; 9 - filling the canvas (sandwich panel)

Figure A.1 - An example of the design of a swing gate with a heat-insulated panel board

1 - panel board; 2 - elements of the frame of the opening; 3 - a pen; 4 - locking device; 5 - lower support beam; 6 - drive unit; 7 - power (bearing) frame; 8 - roller supports

Figure A.2 - An example of the design of a sliding gate with a lower support beam

1 - elements of the framing of the wall opening; 2- guide profiles; 3 - gate safety devices; 4 - rotary balancing system; 5 - locking devices; 6 - door leaf; 7 - seal

Figure A.3. - An example of the design of an overhead gate

1 - door leaf; 2 - web balancing system; 3 - sealant; 4 - elements of the frame of the opening; 5 - drive; 6 - guide profiles; 7 - gate valve; 8 - handle; 9 - locking device

Figure A.4 - An example of the design of an overhead sectional door

Figure A.5 - Schemes of options for lifting overhead sectional doors

1 - door leaf; 2 - guide profiles; 3 - web balancing system; 4- drive; 5- valve; 6 - seals; 7- handle

Figure A.6 - An example of a vertical overhead door construction

1 - gate leaf leaves; 2 - elements of the frame of the opening; 3 - guide profiles; 4 - roller displacement device; 5 - loops; 6 - locking devices and a lock; 7 - handles; 8 - sealant

Figure A.7 - An example of the design of a folding gate

1 - door leaf; 2 - guide profile; 3 - web winding device; 4 - drive, 5 - seal; 6 - protective box

Figure A.8 - An example of the design of rolling shutter gates

TV Vlasova, Center for Certification of Window and Door Technology;

DN Shvedov, Center for Certification of Window and Door Technology;

BN Kiyashko, TsPKTB Gosstroy of Russia;

V.E. Ivashkevich, JSC VNIIDMASH;

Mogutov V.A., NIISF RAASN;

SI Tikhomirnov, NIUPTs "MIO";

Savic B. C ., FSUE TsNS Gosstroy of Russia;

V.G. Milkov, Federal State Unitary Enterprise FCS;

Shvedov N.V., Gosstroy of Russia.

Key words: sliding gates, swing gates, sliding gates, spring, drum, safety

Fire Safety Certificate:
SSPB.RU.UP001.B06599

The enterprise ___ manufactures smoke-proof fireproof metal gates:
VMP 02/60 with fire resistance EI-60, TU 5284-005-51740842-2005

Fireproof swing gates are designed to block the spread of fire through building openings, as well as to create conditions for the safe evacuation of people and protect the paths along which extinguishing is carried out in buildings and structures for various purposes. The design and characteristics of the gates comply with the fire safety requirements established in SNiP 21-01-97 *.

Constructive scheme:

Fire gate characteristics

Gate design: The gates are made of a steel box and hinged leaves made of metal panels, three-layer, wall panels with three-layer mineral wool insulation (hereinafter referred to as PMTS), fixed along the perimeter in a metal profile. In one of the gate leaves there is a wicket (in terms of design, the wicket is identical to the door of the metal fire-prevention dummy series DMP-G 01/60). The gate can be made with a threshold, or without it, with a wicket, or without it (at the request of the Customer). To seal the gaps in the event of a fire between the gate leaves and the frame, as well as between the frame and the wicket leaf, a thermally expanding elastic material and a rubber seal are used.

Equipment:

Gates complete set: hinges, levers (for opening gate leaves), lock and handle, cylinder mechanism, door closers (for both leaves); anchor bolts and decorative caps for them. Instead of a closer, it is possible to install an automatic drive (at the request of the Customer).

Wicket complete set(identical to the DMP-G 01/60 configuration): self-closing hinges - spring-loaded and structural (apart from their direct functional purpose - opening / closing doors, they also act as a door closer), a Nemof lock and handle, a cylinder mechanism, a door closer (on request Customer); anchor bolts and decorative caps for them.

Coating, appearance:

The gates are painted with polymer powder paint; basic colors are light gray shagreen (Ral 7032), or in PMTS color (Ral 9002). On the outer surface of the Gate there is a metal nameplate with a fire safety sign, fire resistance rating (EI), serial number and date of issue, information about the manufacturer.

Gate weight

Mounting in the prepared building opening (license of the State Administration of the State Fire Service of the Ministry of Emergency Situations of Russia No. 2/21813) of swing gates - 10% of the cost (see section ""). It is possible to manufacture gates for non-standard openings.

To place an order for a fire gate, you need to fill in.

Double-leaf armored doors Triton

The Triton company brings to your attention such door designs that, for one reason or another, are not suitable for standard doorways - these are double armored doors. On this page you will find a description and see examples of double-wing armored doors. Such doors differ from standard entrance doors in that the entire weight of the door structure is distributed between the two parts of the doors. Thus, we reduce the load on the door hinges, which increases the service life. There are two options for installing double doors: when both doors are opened and when one is opened.

According to the manufacturing technology, such a door does not differ from the standard one. The thickness of the sheet is also 2 millimeters, which is welded onto a metal frame. Due to this weight distribution, double-leaf armored doors become more resistant to mechanical and forceful influences. Like conventional entrance doors, double doors are equipped with horizontal or vertical stiffeners. For greater protection of the premises, the double doors are equipped with several locks of different types.

Double armored doors can fit into any interior due to the fact that they use the same materials for finishing as for finishing single-leaf doors.

Read more about double doors on our website.

Double-leaf steel fireproof doors with a window

Doors comply with paragraphs. 2.14, 4.28 DBN V.1.1-7-2002, have a fire resistance limit of EI60 / EI72 (1.0 / 1.2 hours for signs of loss of integrity and thermal insulation capacity). They are certified (in accordance with DSTU BV.1.1-4-98 "Building structures. Fire test methods")

These doors can be made in standard and special fire-retardant versions and have the following design:

Rectangular door frame made of 1.5 thick galvanized steel

Door leaf 54 mm thick is made of 0.8 mm metal sheet and filled with Rockwool refractory slab (density 150 kg / m3 for single-leaf doors)

Blade weight 27 kg / sq.m

Door cover made of PVС, RAL 7035 gray.

D.I.N. adjustable hinges with automatic closing spring (integrated closer closer)

Flame Retardant Plastic Push Door Handle with Steel Bar

Cylinder lock complete with Euro cylinder

Features and design of do-it-yourself swing gates

At any suburban or summer cottage there are gates and fences. Today there are a large number of them, they are of different types.

Swing gate design

The simplest option is swing gates, which are quite simple to make without much effort. For work, you will need materials and tools familiar to many.

Swing gates can be single-leaf or double-leaf, and also consist of a frame and a corner.

The design of swing gates is quite convenient and they can be mounted on an area where there is a lot of space for opening one or two leaves.

If the situation is the opposite, then it is better not to give preference to the swing option, but to choose lifting or retractable structures.

Modern gate options

Today, several models and varieties of gates are used at once, among which are:

As for the design of the gate, it is of four types:

There are also simple panel, sectional and lattice types of gates. There is a mechanical manual and automatic opening process. In this case, it does not affect the design, but only makes it possible to make operation more comfortable.

In the case of automatic controls, hydraulic, electrical and pneumatic drives are used. They can be divided into five types: chain, drum and ceiling types, drives for sliding structures and hidden.

Materials and tools for construction

To make a single-leaf or double-leaf swing gates, you will need not only to exert your strength, but also to have the necessary materials and tools available.

First of all, you need a grinder with grinding or cutting discs. With its help, you can cut the corrugated board, of which the frame will consist. You will need pipes and a compressor to paint the structure.

You can take an ordinary brush or roller, but it will be inconvenient to carry out the painting process, it will also take much more time.

Installation of swing gates

Welding machines and suitable electrodes are required. It is better to give preference to an inverter device, which in this case is perfect for installation. You will need a drill with attachments and tools that allow you to make accurate measurements.

Do not forget that you need to set marks, so immediately take a building level, tape measure, goniometer and a simple pencil. An emery plaster and a riveting machine with steel rivets should be present in the arsenal. During the use of corrugated board, it is fastened to the structure with steel fasteners, because aluminum is not always able to withstand various atmospheric loads.

Among the materials, a profile pipe will be required, from which the frame will be created. It is better to take a pipe with dimensions 60x40x2 or 40x20x2.

Such parameters will allow the finished structure to be more durable, as well as ensure its reliability and stability. For covering the structure, corrugated board is used. The ideal option would be a wall one with a colored polymer coating or a galvanized profiled sheet.

You will paint the frame of the swing gate; the paint can be of any shade that you prefer. Pay attention to anti-corrosion properties and resistance to atmospheric irritants.

Choosing the hinges for the gate. look at the total weight and area of ​​the structure to the corner. For each sash, the optimal number of hinges is considered to be from two to four.

In most cases, a drive is used if the gate will have a large area. The type should be chosen in accordance with your preferences and the finances that you will be willing to allocate for the purchase.

How to carry out a simple installation?

When installing a swing gate with your own hands, you should pay attention to several points at once:

1. the material from which the fencing is made (it is better that the fence was made of brick or corrugated board)
2. is there a need to strengthen the pillars
3. what are the conditions on the site (side of opening the gate, is it possible to mount a wicket and the planned number of leaves).

After you decide on these nuances, you need to make drawings of the future structure from profiled metal. Usually there are two sashes in the structure, their total width reaches no more than four meters, and the height is two.

Gate scheme

Each sash is a metal tube frame, which is equipped with a vertical and transverse post. From the street, the gate is covered with a profiled sheet, with the painted side inward. If the gate is single-leaf, then the whole process remains the same.

Please note that if at the time of purchase the metal was covered with oil, then the substance must be completely removed from the surface using a piece of clean rags soaked in gasoline. The metal is cut according to the completed drawings, in total you should have eight pipe segments that have a wide section for the frame and corner.

If necessary, the profiled sheet can be cut on a horizontal flat surface. For such purposes, metal scissors are ideal.

Do not use a grinder, because it can harm the top and galvanized layer.

The element is best fastened with rivets, but you can also choose self-tapping screws for metal. In the last turn, the selected drive is installed, with which the gate will be closed and opened.

If during fastening you accidentally damaged the protective layer of paint, then you will need to treat these areas with a special anti-corrosion compound.

Metal gates. Manufacturing of welded gates Kiev

The gate, in combination with the wicket, creates the first opinion about the owner, delights our eyes, escorts and greets, and also has a protective function. Metal fences, gates and wickets are made of corrugated board, welded.

A metal gate will be the best option for fencing your site. They deserve special attention: they do not corrode, are strong, durable, do not require special care, and at the same time have an excellent strict look.

Welded gates are also a type of metal gates. Such gates have their own advantages over wrought iron gates. How can this be explained? First of all, it is low cost, reliability, short lead times, the ability to give the gate its individual originality, decorating with decorative elements. Using simple automated technologies, high quality materials for the manufacture of welded gates, we will always get a good result. That is why welded type metal gates are in high demand.

Welded metal gates can be combined with other metal structures that add beauty and comfort to your site.

Sources: dveri-triton.com.ua, npt-a.com.ua, svoivorota.ru, creativmetal.com.ua

The fencing of the site should be planned taking into account traffic. Swing gates, complemented by a wicket for a more comfortable entrance without a car, will perfectly cope with this task. In most cases, metal structures are installed, since they last much longer than wood.

Peculiarities

Installing a wicket or an additional exit is a practical solution, since it is very uncomfortable to open heavy doors every time when moving around the territory.

A purchase or a self-made option involves the calculation of some factors that swing gates must comply with:

• The gate is a kind of protection of a private area from penetration. They must be strong, tough and tamper-resistant.
• The structure should not be heavy. The large size increases the load on the bearing support in windy conditions. An unreliable foundation will provoke breakage of the hinges. Also, the weight prevents free passage - it is not easy to move the massive sash every time.
• Standard metal swing gates are not aesthetically pleasing. Their main priority is protection, but not a decorative component. Decorating and giving them a unique style is possible thanks to the forged elements in tandem with a harmonious color.

In addition, the gate must comply with international standards. These parameters must be observed for safety reasons. The main provisions are described in GOST 31174-2003. The fence must have a supporting structure of adequate size and weight, which is able to withstand changes in weather conditions.

The installation of a gate system implies the presence of preparatory steps. Before installation, you should clear the space for swing gates, as well as pre-build the supporting structures. It is necessary to take into account the terrain, as parts of the gate can cling to hills when moving. Rises and protrusions should be aligned beforehand.

photos

Advantages and disadvantages

Despite the fact that the construction market is replete with an abundance of various materials, metal still holds a leading position in terms of long-term operation, being durable and reliable.

Metal structures have significant advantages:

• Easy operation. Strong hinges fix the structures in one position, allowing you to freely open and close the sashes.
• Easy installation. It is possible to carry out the installation with your own hands, having experience with a welding machine. If you follow the instructions carefully, even a layman will quickly complete the installation.
• Free choice. The wide range of materials contributes to the creation of a unique design in a modern style, the formation of which will not hit the wallet.

• Special protection. The polymer coating prevents the development of corrosion under various climatic conditions.
• Shield against thieves. Thanks to the locking device on the inside and the complete absence of fastening, it is almost impossible to open the metal gate.

However, any design has disadvantages along with advantages. Swinging metal gates require installation in free space due to the wide opening radius. In addition, for unobstructed plowing, it is required to clear the winter snowdrifts every time.

The design has a rather heavy weight, which in the future will affect the appearance - distortions and lowering are possible.

But this problem is easily resolved by pre-installing stronger reinforced concrete or brickwork supports.

Constructions

Swing gate designs are divided into two main types: single-leaf and double-leaf. However, in most cases, site owners prefer to combine both types and install a wicket. Thanks to the space saving, installation takes place mainly in garages. Installation at the entrance as the main exit of the entire fence involves the use of various forged decorations or the creation of an individual sash design.

Metal gates with wicket installation next to - a current choice. Manufacturing is made from corrugated board, steel or metal. The last element is the most popular for creating a structure, among which there are:

• Forged gates combine an object of protection and decoration at the same time. Creative forging, which does not have a supporting structure, is used primarily as a decoration of the territory. The more expensive, fully walled gates are reinforced with a strong foundation of brick pillars.
• Aluminum gates are lightweight, therefore they are widely used in urban environments as a fence element that does not warp or fall for a long time due to excessive pressure. The aluminum is protected by an internal diagonal cable tie that can provide protection for 10 years.
• Profiled sheet is a kind of structure made of metal pipes. The modern design and the ability of the metal profile to be made by hand helped to gain great popularity for this type of gate.

The gate can be coated with any paint that will serve as additional protection against temperature extremes. Correctly selected color will add variety to the outdoor interior.

Experts recommend using insulated metal structures. At the same time, swing gates are not difficult to operate. They consist of two metal plates, between which a thermal insulating material is installed. As this element, simple polystyrene, mineral wool, and basalt insulation are used. When buying, you should choose a heat insulator that does not burn.

Thus, the gate will become fire resistant.

Dimensions (edit)

During the installation and further operation of metal gates, their size is of great importance. The size also has a significant effect on the weight of the structure, which is why there is a need for additional reinforcements.

In most cases, the height of swing gates does not exceed 3 m in private territory, and for industrial institutions, sashes are used that are twice the classical parameters. Due to the increase in size, the mass of the valves increases proportionally.

To install massive elements, appropriate conditions are required:

• Each width calculation is made on an individual basis.
• Before installation, take into account the availability of free space.
• Accounting for the entry of a particular mode of transport is also important. To do this, measure the parameters of the car in width, and then add a margin in order to calculate the free passage. The size of cars does not exceed 2 m, which allows you to take a spare distance on each side of half a meter, therefore, for installation, a width of 3 m is required.

Installation of large metal doors is impractical without urgent need. The large area creates additional load on the support under strong wind pressure, which requires strengthening the supporting structure both to eliminate windage and to take into account the heavy weight.

The weight of a metal structure depends not only on its size, but also on the material during manufacture.

The calculation is performed according to the following algorithm:

• The frame consists mainly of shaped tubes. Each unit has dimensions of 35 x 15 mm with a wall width of 2 mm. A profile pipe of a meter length has a weight of 2 kg. Provided that the height and width of the metal flaps are 3 meters each, the total perimeter of both will be 12 m.Each flap will require an amplifier in the form of 1.5 m cross beams.It follows that installation will require a profile pipe 15 m long with with a total weight of 30 kg.
• The cladding consists of a metal plate with a thickness of about 2 mm, which means that its weight will vary within 75 kg.

Thus, the weight of a metal gate is approximately 100-105 kg. Decorative elements, locking devices are capable of weighing the structure up to 25 kg.

When buying a wide gate, it is necessary to install an upper tie in order to create additional support.

Many metal gates do not require special maintenance, since the manufacturer pre-applies a polymer coating that protects the structure when climatic conditions change. The only part that requires periodic maintenance is the hinges. They need to be lubricated.

Forged decorative fences are often problem areas. The application of anti-corrosion paint is difficult due to the crimped elements. However, the problem is easily solved thanks to aerosol application methods.

From time to time, forged structures require cleaning and additional painting. Dust and dirt are easily rinsed out thanks to the water jet from the garden hose.

To paint faded openwork decoration elements soldered to a metal frame, the latter should be covered with thick paper.

Examples of projects

If you look at a few examples in practice, you can make sure that all projects are implemented within two main groups:

• Swing gates are the dominant part of the entire fencing of the territory. At the same time, additional decorations are used in the form of decorative forged elements and massive load-bearing structures.

• The second option involves the covert design of metal gates. In such conditions, they practically do not differ from the entire fence of the site. It is more popular because it does not distract attention from the garden landscape or street area.

A classic example of a successful project is a tall stone fence that fulfills its original function of protecting against intruders. In the middle of the massive walls, a wrought-iron construction of metal gates, equipped with alarms and automatics, winds. The most common cladding for a graceful entrance is brickwork pillars.

Very often the customer is interested in the question of the ratio of the size of the gate leaf and the pillar on which it is attached. Let's try to understand this issue using the example of a gate made of corrugated board.

Frame material

The frame of the gate leaf is made of a profile metal pipe with a section of 40 × 20 or 40 × 25 with a wall thickness of one and a half to two millimeters. Let's calculate the mass of the frame for the sash. To do this, you need to know the weight of one meter of the profile pipe, from which the fabric of the future structure will be made. So, 1 meter of 40 × 20 × 1.5 pipe weighs 1.4 kilograms, and one meter of 40 × 20 × 2 pipe weighs 1.7 kg. For ease of calculation, we will give examples of common gate designs.

Sketches for calculating length and mass

Sheathing material

In our case, the material for cladding will be corrugated board for fences marked C20 with a thickness of 0.5 mm. A square meter of such material has a mass of about 5 kilograms. For swing gates 4 meters wide (the most common size is from 3 to 4 m) with a fence height of 2 meters - 4 sheets are needed, two for each leaf, i.e. a maximum of 20 kilograms is obtained.

So, the mass of one gate leaf is about 40 kg. This is the weight the average person can handle. The welded seam with which the gate is attached by means of a hinge to the post is able to withstand a load much more than that created by the indicated mass. Therefore, two loops for each half are sufficient.

Pole material

The pillars must be used with a wall thickness not less than the wall thickness of the pipe from which the door frame is made. Of course, the larger the section and wall thickness, the more durable the post will be - but in every case, for well-known cost considerations, the criterion is the "golden mean". Therefore, a sufficient solution for swing gates made of corrugated board will be a pillar 60 × 60 × 2 or 80 × 80 × 3.

Securing the pillars

It is important how and how the pillars will be fixed in the ground. In principle, there are two different installation methods: with pillar concreting and without concreting. The former is more expensive and in most cases preferable, although there is a threat of concrete pushing out. Before making a decision, we advise you to refer to the experience of your neighbors - this is the most reliable way to predict the behavior of the soil for your area. The second installation method is cheaper. It also has one more advantage - repairs, if necessary, are much faster and easier.

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