Installation of technological overpasses

Company Synthesis TMK. offers services for the installation and dismantling of technological overpasses.

 

TECHNOLOGICAL ESTACADS

Technological overpasses and even more so just flyovers are very often understood not at all what they are. In fact, any semantic connections with car traffic are not justified and are not considered here. In the broad sense of the word technological overpass is a long engineering structure, spans and supports of which serve as the basis for laying engineering communications and conveyors in an above-ground way. Such a flyover is built in the event that the surface is already occupied by something and this obstacle can be bypassed only by an above-ground method, by air, in the case of bypassing roads, driveways or connecting two or more production buildings with conveyors. Often, technological overpasses are performed in a closed version, to protect against atmospheric precipitation.

As a rule, technological overpasses are used in enterprises of machine-building, oil refining, gas, chemical, metallurgical and energy industries for transportation of products, products through pipelines or conveyor belts. At the vast majority of other industrial enterprises, technological overpasses have been laid communications connecting workshops and buildings.

Technological overpasses are single-tiered and multi-tiered, support, suspended, or support-suspended. According to the type of columns on which they are based, they are divided into steel and reinforced concrete. Sometimes the fastening of span beams is performed to the bearing structures of industrial buildings, depending on the design solution. The choice of the type of design of the technological overpass depends solely on the production need, length and design loads on it.

 

Preparatory stage of work

Before the start of work on the installation of technological overpasses, company specialists Synthesis TMK. study drawings of industrial facilities on which work is to be carried out, passports of conveyors and equipment issued by the manufacturer, as well as technical specifications and instructions. Geodetic, geological surveys and survey of building structures are carried out. In addition, even before the start of installation, schemes for connecting to the engineering networks of the enterprise are studied, the project is carried out and the RRP is developed for the installation of the overpass.

You can proceed directly to the installation of technological overpasses only after the customer signs a full set of documents, the main of which is the act of transferring the construction site and the agreed RPR.

 

FUNDAMENTS OF TECHNOLOGICAL ESTACAD COLONS

Columns and supports of technological overpasses can have a monolithic reinforced concrete foundation columnar or glass type, as well as a pile foundation with a roastwerk. In some cases, it is allowed to install support on compacted soil. The design of overpass foundations is also within the competence of the company’s specialists. Synthesis TMK.

 

Installation of TECHNOLOGICAL ESTACADS

The enlarged technology of overpass installation includes the following stages: mobilization at the construction site; manufacture of load-bearing structures of the overpass and pipelines; supply of materials and products; installation work; testing of technological overpass, pipelines, conveyor lines; delivery of equipment to operation services. However, the apparent simplicity hides a large number of professional features of the installation of overpasses.

For example, when installing the overpass, an input quality control of the products and materials used is mandatory. The installation itself begins only after the installation and fixing of support structures and suspensions in accordance with the project documentation. All products before delivery to the facility must be checked for completeness and compliance with the project. Assembly units and nodes of technological overpasses during installation are laid on at least 2 supports. Any installation should be carried out taking into account thermal extensions of elongations arising in pipelines. Compensatory measures are provided to avoid undesirable consequences.

When installing long-span overpasses, additional measures may be required for the organization of temporary travel, the transfer of communications, as well as the construction of technological passages.

Pipelines are attached exclusively to the equipment fixed in the design position, and without distortions and additional tension. If necessary, anti-corrosion treatment of highways is carried out, as well as their insulation and thermal insulation.

 

Equipment and equipment for installation

The quality and speed of installation of technological overpasses is determined both by the professionalism of the performer of works and by his technical equipment.

Of course, the main role in this matter is played by cranes. The choice of equipment for the installation of a technological overpass is determined by a number of factors relating to the mass, dimensions of the columns and structures, their design location, features of the construction site.

When choosing a crane, such an important point as the possibility of lifting and installing the maximum possible number of columns and overpasses from one parking lot is taken into account. Taking into account all the above, most often for the installation of technological overpasses, especially with reinforced concrete columns, heavy self-propelled tracked cranes with a large arrow departure are used.

 

Why are we?

Specialists of the company Synthesis TMK. have extensive experience in the installation and dismantling of technological overpasses and their design at industrial enterprises, in a short time, without stopping production.

Order a service for the manufacture and installation of a technological overpass.

Contacting our company, you get a guaranteed high quality of work at reasonable prices and insure against subsequent problems with engineering communications caused by negligent attitude to the design of project and executive documentation, lack of geodetic and laboratory control, as well as lack of control over the actions of the contractor.

All of the above can lead to a violation of the geometry of overpasses, pipeline breakthroughs, and in some cases, the complete inability to operate such a overpass.

 

Normative documents

GOST 3.015-16.94 “Mono-tiered overpasses for technological pipelines”.

GOST 3.015-16.94 “Columns of prefabricated reinforced concrete”.

GOST 3.015-16.94 Travers and inserts precast concrete. Working drawings”.

GOST 3.016.1-11 “Transpasses reinforced concrete combined for technological pipelines and cables”.

GOST 3.016.1-11 “Nodes for laying technological pipelines”. Design materials.”

GOST 3.016.1-11 Nodes of cable laying. Design materials.”

GOST 3.015.1-17.94 “Foundations on a natural and pile basis for the construction of overpasses and detached supports for technological pipelines”.

GOST 3.015-1/92 “Unified free-standing supports for technological pipelines”.

GOST 3.015-5/86 “Pills and pile-columns clogged reinforced concrete for pile supports and foundations for technological pipelines”. Working drawings”.

GOST 3.015-5/86 “Pile foundations for stand-alone supports”. Working drawings”.

GOST 3.015-8/84 Materials for the design of foundations for reinforced concrete columns of rectangular section and steel supports.

SNIP 3.05.05-84 “Technological equipment and technological pipelines”.

SNIP 3.04.03-85 “Protection of construction structures and structures from corrosion”.

SP 48.13330.2011 “Organization of construction”. Updated version (SNIP 12-01-2004).

SP 126.13330.2012 “Geodetic works in construction”. Updated edition of SNIP 3.01.03-84.

SP 70.13330.2012 “Carrying and enclosing structures”. Updated edition of SNIP 3.03.01-87.

Manual on the design of detached supports and overpasses for technological pipelines (to SNIP 2.09.03-85).