Reinforced concrete support sv 105 dimensions. Racks reinforced concrete St. Key characteristics of racks for power transmission line supports

Power transmission line poles made of reinforced concrete have significant advantages over other building materials (there are also wooden and metal poles). Reinforced concrete is not subject to destruction under aggressive environmental influences and does not harm the environment; reinforced concrete products are suitable for installation even near clean groundwater sources. High strength and resistance to the environment (climatic conditions, precipitation and chemicals in the air) make it possible to expose racks to SV 105-5 for poles of 10 kV transmission lines for non-aggressive and aggressive environments of long-term operation (50-70 years), while the construction of poles does not require constant inspection. The design and materials of the supports make it possible to operate them in an environment with an aggressive degree of impact in climatic zones, where the ambient temperature drops to -55 ° C, seismicity reaches 9 points, and wind and ice loads correspond to VII and V regions according to SNiP2.01.07-85.

Currently, energy construction is actively using power transmission towers throughout Russia, as they are the most resistant to extremely low atmospheric temperatures and aggressive environmental influences. Unlike a wooden lighting pole, reinforced concrete products do not rot in a humid climate and can be installed both in the city and along highways, railways, in mountainous or wetlands and forests. Compared to metal products, racks SV 105-5 for poles of 10 kV transmission lines for non-aggressive and aggressive environments do not require regular technical inspection, they do not need to be periodically painted or galvanized to prevent corrosion or oxidation - concrete is pre-treated during molding with anti-corrosion and water-repellent additives .

In the production of power transmission towers, we use the latest production technologies to ensure the high quality of reinforced concrete products and maintain the performance of products for many years. Our rack products SV 105-5 for poles of 10 kV transmission lines for non-aggressive and aggressive environments comply with all standards and requirements of GOST.

Structurally, power transmission towers are an elongated rectilinear figure - a rack. Embedded parts for clamps, traverses and fasteners for fixing wires are provided in the body of the structure. The lower part of the support, if necessary, also has embedded parts for fastening to the foundation and other structures that serve to increase the stability and bearing capacity of the supports (slabs, crossbars).

Installation of rack products SV 105-5 for poles of 10 kV transmission lines for non-aggressive and aggressive environments begins with laying out the details of the pole along the route for its further assembly. Assembled on the ground, the structure of the power transmission line support is lifted to the design position with the help of a crane and installed in a cylindrical pit with filling the voids with a sand-gravel mixture. In soils with low bearing capacity, the fastening strength is achieved by fixing the supports with crossbars and installing them on special base plates. For fixing guy wires in the ground, anchor plates or other foundation structures are installed at the design distance from the support in accordance with the project.

Energy construction assumes that the products of the SV 105-5 rack for 10kV transmission line supports for non-aggressive and aggressive environments are made only from high-strength heavy concrete with a compressive strength class of B30. Portland cement is used as a raw material for this, which has increased strength, frost resistance, corrosion resistance and low water permeability. Granite crushed stone, which is introduced into the composition of concrete, gives products additional stability and resistance to low temperatures and high humidity. The frame made of high-strength steel compensates for the fragility of concrete and increases the elasticity of the structure. In order for the supports to be resistant to external influences, they are compacted by vibration, due to which air cavities are removed, and the concrete mixture spreads evenly over the entire cross section.

The concrete of the pillars of the power transmission line supports is reinforced with prestressed reinforcement to give greater strength to the products. Reinforcement in the form of three-dimensional frames is carried out from bar steel of classes A-III, At-I, At-V and At-VI. All parts of the SV 105-5 rack products for 10kV power transmission line supports for non-aggressive and aggressive reinforcement environments and embedded parts are pre-treated with anti-corrosion treatment and coated with polymer coatings.

Like any load-bearing structures, SV 105-5 racks for 10kV transmission line supports for non-aggressive and aggressive environments are subjected to strict product quality checks. Power transmission line supports should not have cracks, except for shrinkage cracks, the width of which should not exceed 0.2 mm. Sinks should be no wider than 20 mm in width, chips - no more than 20 mm in depth. Maximum deviations of the geometric parameters of reinforced concrete supports should be no more than ± 60-80 mm in length, section - ± 6 mm. Deviations from the plane of the rack should be no more than 15 mm in any direction. Reinforcement exposure is strictly prohibited. The thickness of the protective layer of concrete to the reinforcement should not be less than the design by 3 mm.

support post SV 105-5 IV A vibrated overhead line 10 kV improved

Base racks - reinforced concrete rods of round or rectangular section, designed for poles of power lines of overhead lines of 10 different types. Standards for the production of racks and requirements for the quality of the product fixed GOST 23613-79. Today, there is a need for hardy racks that could better than others resist the aggressive environment and the difficult Russian climate. This is how the power transmission line project 00.10 appeared, in which scientists designed more stable and safe racks with increased requirements for materials. As before, reinforced concrete racks (pillars) are produced according to TU 5863-007-00113557-94. Reinforced with spiral and rod reinforcement, endurance is provided by improved B-30 concrete with additives that enhance moisture resistance and frost resistance.

Racks are designed to evenly distribute the mass of stretched wires; in the line network, they can be located at a distance of 100 to 250 meters from each other. Modified racks are produced according to the recommendations of the project LEP 00.10, released in 2001.

The racks have pins for the grounding device, which makes them more profitable and safer for repairs. It is difficult to say how many racks are produced annually, because electrical systems and networks are growing at a solid pace. Progress also does not stand still, therefore vibrated racks SV 105.5 IV A are produced with strained and non-tensioned fittings. All racks have grounding rods, which also provide increased safety in the event of a short circuit. In the catalog "Complex-S" you will find reinforced poles and vibrated racks at reasonable prices, we also have delivery of reinforced concrete products throughout Russia and neighboring countries.

Modified racks, tested at the Research Institute of Concrete and Reinforced Concrete, are characterized by increased climatic resistance and resistance to aggressive environments. Today, many manufacturers have completely switched to the production of more profitable and practical stable racks of power lines. Racks with a bending moment of 3.5-5.0 tf/m are made with various reinforcement options with steels A-III, A-V, A-IV, At-VK, At-IV. In the catalog of the Complex-S company you can find and buy traditional and modified racks in any quantity. Here you can quickly find out the current prices and price lists for CB racks and accessories.

Together with racks, depending on various operating conditions, they are used cylindrical anchor AC-1 and base anchor plates P. Anchor plates-thrust plates are used to support racks in conditions of soft soils and increased load on the supports. These poles/posts/poles can be used as street lighting poles. Vibration mounts are compulsorily certified and tested, as these are products with a long service life, the reliability of which must be guaranteed.

The production of energy racks is carried out only from heavy concrete, prepared taking into account the special characteristics of the operation. A long period of operation implies a dense structure of the material. Among the advantages of "energetic" concrete are low permeability (W6-W8), high frost resistance F200, resistance to aggressive soil environments and cracking. The concrete rack successfully passes tests for strength, rigidity, resistance to cracking. Working drawings and design schemes for overhead line racks according to GOST23613-79 pinned Power line 00.10 and TU 5863-007-00113557-94 . Reinforcement of racks is carried out with prestressed reinforcing bars welded into spatial frames. The high class of steel gives the rack a huge margin of safety - there are various reinforcing "fillings" in the assortment: A-III, A-V, A-IV, At-VK, At-IV.

Racks vibrated reinforced concrete are designed for supports of intermediate and anchor-angle type (including undercut and transitional supports of power transmission lines) for suspension of two to nine wires of 10 kV overhead lines or up to four wires of wire broadcasting. Operation of the rack in I-V wind regions and in regions I-IV on ice (when dancing wires I-III). Racks with a large bending moment are designed for anchor-angle and double-circuit supports of 10 kV overhead lines. Recall that modified racks with prestressed and pretensioned reinforcement are on sale, which can vary significantly in price.

Reinforced concrete supports of the SV 105-5 IV A rack are buried in the ground to a depth of 2 to 3 meters, so the bottom edge of the rack is processed very carefully. Reinforced concrete rack price depends on the consumption of steel and concrete, as well as on additional protection with anti-corrosion compounds. Prestressed support posts Power lines 00.10 for reliable power supply must be accompanied by technical quality certificates. Vibrated reinforced concrete racks are supplied in various configurations, both as part of various types of supports, and separately.

All overhead line supports and racks CB 105.5 IV A are made using high-quality and environmentally friendly materials that comply with international and domestic standards. Reinforced concrete pylons for power transmission lines undergo multi-stage quality control. Special concrete, protected from corrosion, and even more so from electrocorrosion (to improve resistance, standard series for reinforced concrete racks and power transmission line supports are constantly updated). The weight of the rack with ground rods is 1175 kg.

Product marking

TU 5863-007-00113557-94 defines the conventions of racks in decreasing order: indication of the type of rack (CB) rack for overhead power lines, length in dm, and the calculated bending moment, reduced by 100 (tf / m). The risks and markings on the support are applied above the three-meter mark of the cut of the foundation.

Racks intended for operation in conditions of exposure to aggressive environments must meet additional requirements established by the design documentation in accordance with SNiP 2.03.11-85 and specified in the order for the manufacture of racks.

Racks are intended for use:

1. at an estimated outdoor temperature of up to minus 40 degrees Celsius.
2. In regions I-V, according to the velocity pressure of the wind and in regions I-IV, according to ice.
3. Racks SV 105-5 IV A are mounted on sites with normal construction conditions and seismicity up to 7 points inclusive.

Transport and storage

All before mounting manipulations with the racks are carried out in a horizontal position, the racks are transported, protecting them from displacement and impacts on the sides of the vehicle). Under each horizontal row they are laid on wooden spacers. Reinforced concrete racks are stored on special platforms (horizontal, with a hard surface and a drain) in stacks 1.6-1.8 m high with wooden spacers installed between rows. Our specialists will help to deliver vibrated racks (poles of power lines). Prices for CB racks depend on the consumption of reinforcing steel. In our catalog, you can always find the current cost of poles according to the project TU 5863-007-00113557-94.

Product quality control

All reinforced concrete products that work in bending or experiencing vertical loads must be very carefully checked at the acceptance control procedure. No manufacturer's warranty will save if the racks have cracks more than 0.2 mm wide, reinforcement is exposed, extensive traces of corrosion, concrete chips and sinks in large numbers with a depth of more than 0.5 cm.

The thickness of the protective layer of the rack CB 105.5 IV A of the reinforcement must correspond to the design. All embedded products of the racks must be in place and comply with the working drawings. Drawings and diagrams are provided by the power transmission line project 00.10. In addition, accompanying documents are subject to control, which should indicate: the number of racks, the brand of concrete for strength, frost resistance, water resistance, the presence of embedded products, the class of reinforcement.

A power line pole is a reinforced concrete structure for securely holding wires of power lines laid by air (alternatively, laying in trenches, blocks, channels, tunnels, collectors, etc. is used). This version of the supports is very common and is widely used in our country and not only. Racks of power transmission lines are used in the process of construction and installation of overhead power lines, the voltage in which does not exceed 10 kW. For lines of increased power (over 10 kW), racks made of centrifuged concrete of increased strength are used.

A rack for power transmission line supports can be known to ordinary consumers as a pole, support, etc.

Marking of racks for power transmission line supports

• SV - vibrated stand for power transmission line supports;
• 90, 95, 110, etc. (the first two-digit or three-digit number) - the length of the support in decimeters (dm);
• 3.6; 4; 5 (fractional or single digit) - calculated bending moment;
• one; 2; 3 - indices indicating the design load;
• The letter designation (a, av, ag, etc.) - determines the method of manufacturing the rack;
• I; II; III; IV - class of fittings used.
  

Classification of power transmission towers

There are several ways to classify racks for power transmission line supports. The first depends on the way the wires are suspended. This may include:

• intermediate supports in which the wires are held by special clamps;
• anchor posts in which the wires are not held, but supported, i.e. they serve to ensure the correct tension of the wires.

Intermediate supports, in turn, are also divided into two subspecies: for straight sections of power lines and for installation at the corners of power lines.

Structurally, supports can be classified as follows:

• tower (single-column or multi-column);
• portal;
• cable-stayed.

Depending on the order of fixing on the foundation, the following options are possible:

• free-standing;
• attached to braces.

Taking into account the method of conjugation of individual elements:

• welded;
• bolted.

The company "Industry of Concrete Products" produces reinforced concrete racks for power transmission line supports. They are made of concrete, additionally reinforced with metal. Separately, for power lines under voltage from 10 kW, centrifuged concrete is used.

Features of the installation of supports

In addition to the power line support, for installation it will be necessary to ensure the presence of a horizontal longitudinal load to balance and maintain balance. This makes it possible to ensure the stability of the support during strong winds or mechanical impact on it. At the ends of power lines, end supports are installed. They differ from the usual ones in that wires extend from them, which are connected directly to substations.

Key characteristics of racks for power transmission line supports

All racks for power transmission towers are adapted for use in open spaces at air temperatures up to -65 degrees Celsius. They cope with exposure to high temperatures, are resistant to corrosion, active chemicals. The main disadvantage of this type of reinforced concrete products is their significant weight, which mainly affects the ease of transportation and installation.

It is possible to buy racks of supports in the Concrete Concrete Industry Industry company in any batches - wholesale and retail. The necessary products are both in stock and can be made to order.

All shipped products meet the requirements of regulatory documents and are accompanied by quality certificates for each batch.

Support SV 105-5 SV 105-5

• water permeability - W6,
• frost resistance - F200.

SV 105-5

• in a gaseous environment

SV 105-5 SV 105-5

As a frame for supports SV 105-5 serves:

• reinforcing ropes;

SV 105-5 at least half a metre.

support post SV 105-5

The product is delivered under the order

Availability and price of goods

check with company manager

Volume in m.cub.

Manufacturer

Reinforced concrete plant

Price: 10 050 8 480 rubles.

Rack vibrated reinforced concrete SV 105 - 5

Support SV 105-5 with wire reinforcement, with reverse taper at the bottom designed for installation in pits, prestressed (0.38 and 6 to 10 kV). supports SV 105-5are made of durable, heavy concrete in accordance with GOST 26633 and the requirements of TU 5863-003-00113557-94:

• compressive strength class - B30,
• water permeability - W6,
• frost resistance - F200.

To support several wires of overhead power lines and wire broadcasting, anchor-angle and other types of reinforced concrete racks are used, including SV 105-5 that can be used:

• in a gaseous environment
• in areas where seismic activity can reach up to 9 points on the Richter scale,
• at low temperatures (-550 C);
• in an aggressive environment.

Depending on the installation site, power line supports SV 105-5 can be made from various materials that are added to the composition of reinforced concrete. This method helps to prevent the appearance of cracks at sub-zero temperatures in cold areas. For earthquake-prone regions, they increase the strength of the supports by increasing the wall thickness of the rack itself SV 105-5. Strong, reliable and fairly easy to manufacture, reinforced concrete easily resists corrosion and harmful chemical elements that are contained in the air.

As a frame for supports SV 105-5 serves:

• rod thermomechanically hardened steel of a periodic profile;
• rod hot-rolled steel of a periodic profile;
• high-strength reinforcing wire;
• reinforcing ropes;
• rod, hardened by drawing, steel of a periodic profile.

The connection along the rods is carried out by welding. In the longitudinal and in the cross section, no more than one connection of the reinforcement. Distances between connections on rods along the length of the rack SV 105-5 at least half a metre.

support post SV 105-5 5 are produced in batches in accordance with the requirements of the current standard. All batches include reinforced concrete racks belonging to the same brand. Products are manufactured using one specific technology and the same raw materials.

Our experts will advise you and help you choose reinforced concrete racks depending on the location and climatic conditions.

Reinforced concrete lighting pole SV 105-5 used to illuminate any area, whether it be a roadway or a pedestrian zone. It is a pole that is used to fix lamp equipment and provide lighting for a certain area. Highway or trunk poles are very important for trail lighting. They are also installed in megacities for the improvement and quality of life of city residents.

Reinforced concrete power line poles (power line poles) are used for the construction of lines carrying a voltage of 35 kV. Such supports must withstand temperatures up to minus sixty-five degrees. These are the main structural elements that hold reins stretched over long distances.

Lighting poles 105-5 can hold two to nine wires taut. One of the main advantages of reinforced concrete lighting poles is their resistance to corrosion and chemically active reagents. The average life of a lighting stand is fifty years. Like all reinforced concrete products, supports are manufactured in accordance with GOST. For reinforcement, prestressed steel rods are used. The grade of concrete should be B30 to create maximum strength and durability. Frost resistance has a certain coefficient, for screw racks it is F150. All outdoor lighting poles are manufactured according to working drawings in accordance with the requirements of technical specifications. Reinforced concrete products must be of good quality, as they are designed for operation for a long time. At a certain distance from the ground, the wires encircle thousands of kilometers of settlements. Reinforced concrete racks SV 105 are divided into corner supports and intermediate ones. These supports are used for the construction of communication lines and lighting poles. Such material is practically not affected by climatic factors. That is, the poles can fully perform their functions of lighting settlements or maintaining power lines for a long time. It would seem that the products are extremely simple, but the technology of their manufacture is constantly being improved and strict adherence to this technology is mandatory. These concrete parts are universal.

The installation of reinforced concrete racks SV 105.5 is not carried out manually, but with the help of special equipment. The process is complicated from the point of view that the passage of heavy equipment must be ensured in any case, even through the forest belt and swampy terrain. Proper installation of racks (reinforced concrete supports) will guarantee high-quality and uninterrupted operation of power lines.

The most famous representative of reinforced concrete lighting poles in the city is a lamppost. In any metropolis and peripheral town, this uncomplicated concrete structure is sure to be found. Although reinforced concrete poles have been increasingly replaced with iron poles on central and pedestrian streets, they are more aesthetically pleasing and more convenient in terms of installation method, although they are not as durable and more susceptible to environmental damage, corrosion and airborne chemicals. Aluminum or steel is galvanized, which somewhat extends the life of the product. But many builders still prefer traditional reinforced concrete supports. It is these supports that are mainly offered by manufacturers. Reinforced concrete poles are equipped with brackets. They are still used to illuminate park areas, playgrounds, suburban areas, parking lots, enterprise areas, private sectors of houses, and so on. These reinforced concrete products have received such wide distribution due to their invariable qualities.

Concrete supports sv-150.5, unlike metal ones, are not subject to corrosion and are resistant to low and high temperatures. In addition, this material is more vibration-resistant than metal poles. It does not need painting and coating with special protective substances. In addition, reinforced concrete lighting poles do not need grounding. An important factor in their popularity is their relatively low cost.