Technical inspection of external networks. Technical inspection of engineering systems. Reinforcement of metal beams

Inspection of the technical condition of engineering equipment systems is carried out during a comprehensive examination of the technical condition of buildings and structures.

Inspection of engineering equipment and its elements consists in determining the actual technical condition of systems, identifying defects, damage and malfunctions, quantifying physical and moral wear and tear, establishing deviations from the project.

Technical condition assessment engineering systems buildings and structures are carried out taking into account the average standard service life of elements and engineering devices determined.

The physical wear of engineering equipment systems is determined in accordance with. At the same time, if in the process of reconstruction or operation some elements of the system were replaced with new ones, then the physical wear is specified by calculation and is determined by the formula

where is the physical wear of an element or system, %;

Physical wear of a section of an element or system, %, determined by ;

Dimensions (area or length) of the damaged area, miles m;

Dimensions of the entire structure, miles m;

The number of damaged areas.

The physical wear of the system is determined as the sum of the weighted average wear of the elements.

The obsolescence of engineering equipment systems is determined by the discrepancy between its performance and modern regulatory requirements or the absence of any engineering equipment without the presence of a replacement for its functional purpose. Obsolescence is quantified by the method of determining the cost of depreciation as a percentage of the replacement cost of the building.

Indicators of the obsolescence of residential buildings in the absence of certain types of engineering equipment, without the presence of a functional replacement for it, are given in Appendix K.

In a detailed examination of heating systems, hot and cold water supply, an assessment of the corrosion state of pipelines and heating devices is carried out. The corrosive state is evaluated by the depth of the maximum corrosion damage to the metal wall and by the average value of the pipe section narrowing by corrosion-scale deposits in comparison with a new pipe.

In this case, samples are taken from the elements of the system (risers, connections to heaters, heaters). The samples determine the maximum depth of corrosion damage and the value of the narrowing of the "living" section. When taking and transporting sample cuts, it is necessary to ensure the complete safety of corrosion deposits in pipes (samples). Passports are compiled for the cut out samples, which, together with the samples, are sent for laboratory examinations.

The number of risers from which samples are taken must be at least three. When examining a system with monolithic risers, samples for analysis are taken at the points of their connection to the mains in the basement.

The number of connections from which samples are taken must be at least three, coming from risers in different sections and to different heaters.

The permissible value of the maximum relative depth of corrosion damage to pipes should be taken equal to 50% of the wall thickness of the new pipe.

The permissible value of the narrowing of pipelines by corrosion-scale deposits should be taken in accordance with the hydraulic calculation for pipes that were in operation (the absolute roughness value is 0.75 mm).

Under these conditions, the allowable narrowing will be:

For pipes with 15 mm - 20%;

For pipes with 20 mm - 15%;

For pipes with 25 mm - 12%;

For pipes with 32 mm - 10%;

For pipes with 40 mm - 8%;

For pipes with 50 mm - 6%.

Permissible narrowing of the "living" section of convectors, subject to an acceptable decrease in heat transfer from the heater, should be considered 10%.

The relative depth of corrosion damage to the pipe metal, %, is estimated by the formula

where is the wall thickness of a new pipe according to GOST 3262 of the same diameter and type (light, ordinary, reinforced);

The minimum remaining wall thickness of the pipe after operation in the system by a specific date.

The narrowing of the free section of the pipe, %, by the products of scale-corrosion deposits is estimated by the formula

where is the average inner diameter of the pipe with deposits;

The inner diameter of the new pipe, taken according to GOST 3262 in accordance with its outer diameter.

The permissible value of the narrowing of pipelines by corrosion-scale deposits is taken with a decrease in the "living" section of the pipe by no more than 30%, as a result of which the value of the minimum free head for sanitary appliances is provided.

5.4.1 Inspection of the technical condition of hot water supply systems

5.4.1.1 When inspecting the technical condition of hot water supply systems, the following work is guided and carried out:

Describe the system (system type, piping layout);

They examine circulation pumps, instrumentation, shut-off and control valves at the entrance to a building or structure;

Examine pipelines (in the basement, rooms, in the attic) and establish defects (fistulas in metal, drip leaks in places of threaded connections of pipelines and tie-ins stop valves, traces of repairs of pipelines and mains, non-heating of heated towel rails, corrosion damage to pipelines and heated towel rails, violation of the thermal insulation of main pipelines and risers), examine the condition of the fastening and supports of pipelines;

Carry out instrumental measurements:

1) water temperature in the supply line and in the return pipeline (in the heating point of the building);

2) the temperature of the water supplied to the water intake (at the outlet of the water heaters of stage II or at the entrance to the building);

3) the temperature of the circulating water (at the lower bases of the circulating risers);

4) the temperature of the drained water from the water taps (in the control rooms and risers of the rooms, the most remote from heating point);

5) temperature of the surface of heated towel rails (in the control rooms and risers of the rooms most remote from the heating point);

6) free pressure at water taps (in the premises of the upper floor, the risers most remote from the heating point);

7) slopes for laying main pipelines and connections (in the basement and representative rooms).

5.4.1.2 Based on the results of the survey, the degree of conformity is established.

5.4.2 Inspection of the technical condition of heating systems

5.4.2.1 When examining the technical condition of heating systems, the following work is guided and carried out:

Describe the system (system type - centralized, local, one-pipe, two-pipe; wiring diagram for the supply and return lines, etc.);

Define types and brands heating appliances;

Examine the most critical elements of the system (pumps, main valves, instrumentation, automatic devices);

Examine pipelines, heating devices, shut-off and control valves (in the basement, rooms, stairwells, attic);

Establish deviations in the system from the project;

The following damages, malfunctions and defects are detected:

a) corrosion damage and fistulas of main pipelines, risers, piping, heating appliances,

b) corrosion damage to monolithic pipelines,

c) traces of repairs (clamps, patches, welding, replacement of individual sections, counter slopes of distributing pipelines, drip leaks at the points of tie-in valves, dismantling and breakdown of heating devices in stairwells, in vestibules, failure of the heating system staircases, vestibules, destruction or absence of thermal insulation in certain sections of pipelines;

The following instrumental measurements are carried out:

1) outside air temperature (in the area of ​​the building),

2) water temperature in the supply pipeline of the heating network (at the heat supply unit or heat point before the mixing device or water heater or after the inlet valve),

3) water temperature in the return pipeline of the heating line (at the heat input unit or heat point before the inlet valve),

4) water temperature in the supply pipeline of the heating system (at the heat input unit or heat point after the mixing device, if any, or after the water heater with an independent heating system),

5) water temperature in the return pipeline of the heating system (at the heat input unit or heat point),

6) surface temperatures of heating risers at the upper and lower bases (on all risers),

7) surface temperatures of heating devices (in representative rooms),

8) surface temperatures of supply and return connections to heating devices (in representative premises),

9) air temperature in heated premises (in representative premises),

10) slopes of distributing pipelines,

11) pressure in the system: in the supply and return pipelines of the heating network (at the heat input unit or heat point), in the supply and return pipelines of the heating system.

5.4.2.2 Based on the results of the survey, the degree of conformity is established.

5.4.3 Inspection of the technical condition of cold water supply systems

5.4.3.1 When inspecting the technical condition of cold water supply systems, the following work is guided and carried out:

Describe the system (dead-end, ring), which includes: entrance to the building, water metering unit, distribution network, risers, connections to sanitary appliances; water folding, mixing and shut-off and control valves;

Inspect water inlets into the building and identify damage (faults of socket and welded joints of cast iron and steel pipelines under the action of bending forces due to uneven settlement);

They examine the adjacent territory (lawn) and blind areas in the input zone (presence of sediment, dips, uncompacted soil);

Examine the water meter unit and instrumentation; check the caliber and grid of the water meter (in case of violations of the flow of water to the water points of the premises of the upper floors);

Inspect pumping installations;

Examine pipelines, shut-off valves and taps, water meters and identify damage in the basement and rooms (leaks in pipelines at the points of tie-in taps and shut-off valves, damage to pipelines, traces of pipeline repairs, corrosion damage to pipelines, disruption of shut-off valves and flush cisterns);

The following instrumental measurements are carried out in the system:

1) pressure in the supply pipeline (at the input unit),

2) free pressure at water taps (in the premises of the upper floor, the most remote from the input in the risers).

5.4.3.2 Based on the results of the survey, the degree of conformity is established.

5.4.4 Inspection of the technical condition of sewerage systems

5.4.4.1 When inspecting the technical condition of sewerage systems, the following work is guided and carried out:

They examine pipelines and sanitary fixtures in the premises and basement and identify defects (damage to pipelines, breakdown of socket and butt joints, drip leaks at the points of connection of sanitary fixtures, traces of repairs and replacement of individual sections of pipelines);

Check the compliance of the routing of pipelines laid in the basement with the design solution;

Instrumentally measure the slopes of the horizontal sections of pipelines in the basement in accordance with, the slope of the horizontal sections and outlets must be at least 0.02, and the outlet sections from the risers - at least 0.05;

Carry out the calculation (in case of constant flooding of the basement sewage) the diameter of the outlet of the pipeline, depending on the number of sanitary appliances falling on it in accordance with;

Examine the ventilation risers of the sewer network, given that the protruding part of the risers is led through the roof or prefabricated ventilation shaft to a height:

The diameter of the protruding part of the sewer riser must correspond to the diameter of the waste part of the sewer riser; the release of ventilation sewer risers into the volume of a cold attic is not allowed.

5.4.4.2 Based on the results of the survey, the degree of conformity is established.

5.4.5 Inspection of the technical condition of ventilation systems

5.4.5.1 When examining the technical condition of ventilation systems, the following works are guided and carried out:

Describe the constructive solution of the ventilation system (exhaust natural duct without an organized air supply, mechanical duct supply and exhaust, smoke exhaust system with mechanical stimulation);

Examine the technical condition of the system elements and identify the following defects and malfunctions:

1) leakage of air ducts, branch pipes at the points of connection to ventilation units (in rooms),

2) violation of the integrity (downsizing, dismantling) of ventilation units (indoors),

3) non-compliance of the section of the ventilation openings of the air ducts and air distributors with the design solution (in the premises),

4) leakage, violation of the integrity and thermal insulation of ventilation ducts and shafts (cold attic),

5) violation of the integrity of the heads of ventilation units (diffusers), leakage of a warm attic, which is a prefabricated ventilation chamber,

6) mechanical damage to ventilation shafts and deflectors on the roof,

7) damage to the automation devices of the smoke exhaust system,

8) damage to the mechanics of the supply and exhaust system (ventilation units, fans, valves, dampers);

Carry out instrumental measurements of air exhaust volumes (in all rooms);

Check ventilation and smoke channels for permeability.

5.4.5.2 Based on the results of the survey, the degree of conformity is established.

5.4.6 Inspection of the technical condition of waste disposal systems

5.4.6.1 When inspecting the technical condition of the garbage disposal systems, they are guided by, conduct an inspection of the shaft, loading valves, gates, fire dampers of the cleaning device, garbage collection chambers with equipment, deflectors and identify the following defects and malfunctions:

1) violation of the integrity and tightness of the butt joints of the trunk;

2) looseness of the trunk;

3) leakage of loading valves;

4) absence or breakage of metal parts of loading valves;

5) breakdown of the bunker with gates;

6) disorder or absence of eyeliner cold and hot water in the garbage collection chamber;

7) destruction of the cladding and waterproofing of the floor in the garbage chamber;

8) violation of the tightness of the porch and the lock of the door of the garbage chamber;

9) leaks in the junction of the ventilation duct with the barrel;

10) absence or destruction of insulation of the ventilation duct in a cold attic.

5.4.6.2 Based on the results of the survey, the degree of conformity is established.

5.4.7 Inspection of the technical condition of gas supply systems

5.4.7.1 The gas supply system includes engineering devices for transporting gas to the place of combustion, as well as for the most efficient and safe use of it. The gas is burned in gas burners, the designs of which depend on the purpose of the gas appliance ( gas stove, water heater, stove, etc.). The products of combustion of internal gas supply devices are removed by ventilation.

5.4.7.2 To assess the technical condition of the gas supply system, they are guided by,, GOST 21.609, GOST 21.610 and carry out the following work:

Describe the structural scheme of the gas input to the building (external input, basement input, laying the input through the technical basement, including from the looped intra-quarter network);

Study technical documentation for gas pipelines and gas equipment, which includes:

1) a situational plan of home ownership with a diagram of gas distribution and disconnecting devices (the plans for these communications are stored in specialized gas services),

2) lists of gas appliances indicating the premises where they are installed, the number and type of installations,

3) acts on the condition of gas ducts,

4) acts on the overhaul of equipment,

5) passports of technical devices,

6) acts of acceptance of gas pipelines and gas equipment into operation,

7) acts of acceptance tests and inspections carried out during the operation of gas pipelines and gas equipment,

8) acts, reports on the work performed during the overhauls and reconstruction of gas pipelines and gas equipment,

9) a set of design drawings indicating the main technical solutions and all changes made during the performance of work and notes on the coordination of these changes with the organization that developed the project of gas pipelines and gas equipment,

10) acts of investigation of accidents and violations of technological processes affecting the safety of gas pipelines and gas equipment;

The survey establishes compliance with the project of the existing gas supply system (laying of gas pipelines, installation of gas appliances, apparatus and other gas-using equipment);

Examine the technical condition of pipelines and equipment and identify defects and malfunctions:

1) gas leaks and loose connections of pipeline sections,

2) the presence of deformations in the pipelines that occurred during the settlement of the building,

3) the absence of sleeves in places where pipelines pass through ceilings and walls (sleeves must provide free, independent of building structures linear displacements caused by temperature deformations of the gas pipeline),

4) breakdown of gas stoves, water heaters, etc.;

Check the operation of the ventilation system and gas ducts;

Examine the technical condition of the chimneys (gas ducts) for the presence of patency, density, isolation, the presence of normal draft. The main reasons for the violation of the normal operation of chimneys are:

1) blockages of chimneys with construction debris, mortar, bricks from the collapse of pipe heads,

2) blockage with snow or ice plugs due to cooling of the walls of the head during severe frosts,

3) local narrowing of the chimney,

4) the location of the head chimney in the area of ​​wind support,

5) leaky chimneys.

5.4.8 Inspection of the technical condition of drains

5.4.8.1 When inspecting drainage devices, the following work is guided and carried out:

Describe the constructive drainage system (external organized drain, unorganized external drain, internal drain);

Examine the technical condition of the drainage devices and identify the following malfunctions and damage:

1) corrosion, fistulas, holes and destruction of metal gutters, overhangs and downpipes,

2) violation of the interfaces of individual elements of downpipes,

3) the absence of separate elements of drainpipes and fasteners to the outer walls,

4) clogging of drainpipes,

5) violation of waterproofing in places where the water intake funnels of the internal drain are connected to the roof,

6) violation of the tightness of the butt joints along the riser of the internal drain,

7) clogging and icing of water intake funnels of the internal drain and open outlets,

8) violation of the thermal insulation of the risers of the internal drain in the cold attic,

9) condensation moistening of the thermal insulation of the risers of the internal drain in a cold attic,

10) the absence of protective gratings and caps in the funnels of the internal drain.

5.4.8.2 In the event of the formation of condensate and frost on overhangs and drainage devices, the attic is inspected and the following causes of violations of the temperature and humidity regime are established:

Destruction of the walls of ventilation ducts and ventilation shafts;

Destruction or lack of thermal insulation of engineering communications pipelines;

Insufficient thickness of the attic floor insulation (determined by calculation);

Release into the volume of the attic sewer or basement exhaust channels;

Lack of tightness of the porches of attic entrance doors and hatches.

5.4.8.3 Based on the survey, compliance with the requirements for the drainage system is established in accordance with.

1. We conduct a survey of engineering systems in the following scope:

• Inspection of hot water systems - description DHW systems, inspection of pipelines and circulation pumps, description of hot water preparation technology and used water heaters, instrumental measurements - temperature measurements, determination of the thickness of corrosion deposits. Development of drawings with the application of pipelines and wiring of the hot water supply system on floor plans, indicating the diameters and linking to existing structures.
• Inspection of heating and heat supply systems - inspection of the heat input and central heating, description of the heating system and the layout of the supply and return lines, inspection of heating devices, taking temperature measurements, determining the thickness of the narrowing of the living section of pipelines, drawing the heating system on floor plans.
• Inspection of cold water supply systems - inspection of the water supply to the building, inspection of the metering station cold water and instrumentation, description of the water supply system, determination of the thickness of corrosion deposits in pipelines, drawing the cold water supply system on plans with the designation of diameters.
• Inspection of sewerage systems - inspection of pipelines and sanitary appliances, inspection of ventilation risers and revisions, determination of the slope of horizontal pipelines, drawing sewer risers and appliances on floor plans.
• Inspection of ventilation systems - type identification ventilation system, inspection of ventilation ducts and ventilation equipment, determination of air exchange in the examined premises of the building, identification of defects and comparison with regulatory requirements.
• Inspection of waste disposal systems - examination of waste collection chambers, establishing the integrity and tightness of the shaft, establishing compliance with the requirements of the design and normative documentation.
• Inspection of gas supply systems - description of the structural diagram of the gas supply system, study of documentation for gas pipelines and equipment, determination of the compliance of the gas pipeline system with design documentation.
• Examination of the technical condition of drains - a description of the drainage system, reveals unacceptable damage - blockages, tightness of joints, the presence of gratings and caps, the presence of an electric heating cable.
• Survey electrical networks and means of communication - description of the input distribution device, examination electrical cabinets on the floors, inspection lighting fixtures, inspection of low-voltage systems, application electrical panels and wiring of power supply to building plans.

• Inspection of engineering equipment - the actual condition of the used equipment for various purposes is determined. Physical and moral wear and tear is determined in accordance with the identified defects and malfunctions.

2. The composition of the technical report on the inspection of engineering systems and networks

1. Explanatory note - description of the surveyed engineering systems

2. Inspection of heating and heat supply systems of the building

• description of heating and heat supply systems
• drawing heating systems on floor plans
• instrumental examination of heating and heat supply systems, defects, conclusions and recommendations

3. Inspection of building ventilation systems

• description of ventilation systems
• drawing ventilation systems on floor plans
• instrumental examination of ventilation systems, defects, conclusions and recommendations

4. Inspection of water supply and fire extinguishing systems of the building

• description of water supply and fire extinguishing systems
• drawing water supply and fire extinguishing systems on floor plans
• instrumental examination of water supply and fire extinguishing systems, defects, conclusions and recommendations

5. Inspection of the building's drainage systems

• description of drainage systems
• drawing drainage systems on floor plans
• instrumental examination of drainage systems, defects, conclusions and recommendations

6. Inspection of building electrical systems

• description of power supply systems
• drawing power supply systems on floor plans
• instrumental inspection of power supply systems, defects, conclusions and recommendations

7. Results of calculations of existing loads on the building, analysis of input nodes for the possibility of increasing loads, identification of places for possible connections of new networks

8. Conclusions based on the results of the inspection of engineering systems of the building

10. Executive schemes - plans with applied engineering systems

For directors and other high-ranking representatives of the population of the third planet from the sun

Upon completion, the customer will be issued a certificate and conclusion. As well as confirmation of the work performed.

Examination Cost Calculator engineering networks

1. Sample for design and survey - KP, TK, ESTIMATE technical examination of engineering systems up to 1500 m2
2. Sample for design and survey - KP, TK, ESTIMATE technical examination of structures up to 1500 m2

Inspection of engineering networks of treatment facilities

Inspection of treatment facilities- begins with the preparation of technical specifications. The chief engineer visits the facilities or CEO appointing specialists responsible for the specific production of works. At the end, a detailed plan will be drawn up, including the results of the research, a list of equipment with recommendations for use and, of course, details of the upgrade.

Inspection of water supply systems

Inspection of water supply systems- a set of measures aimed at clarifying the actual and obsolescence of the engineering water supply system. Includes a detailed visual inspection by specialists, control using narrow-profile equipment and design work. Upon completion, a study report is drawn up, which details the results, recommendations, best practices modernization and maintenance.

Inspection of electrical networks

Inspection of electrical networks- usually initiated by the company on the fact of excess electricity costs or on the onset of an emergency. Networks, electrical installations, input devices are examined directly. Based on the issued conclusion, actions are taken to improve, repair, and dismantle systems.

Inspection of engineering networks of ventilation ducts

Inspection of ventilation ducts- this includes checking the design documentation and working calculations to assess the feasibility of the installation. Control of the system, air channels and nodes. Finally, recommendations are made as needed efficient use, repair or upgrade.

Examination of the ventilation system

Examination of the ventilation system– comes down to measuring parameters (air flow rate, transparency, amount of suspended particles, humidity) and comparing the obtained data with those calculated for a particular system. In case of a significant discrepancy, the system is examined for incorrect operation of nodes and components.

Ventilation inspection report

Ventilation inspection report– includes the data shown by the calculation when designing the system and the practical parameters of the operating system. With a significant discrepancy between the parameters, measures are indicated to equalize them.

Exhaust ventilation in production

Exhaust ventilation in production– extremely necessary for pumping the required amount of clean oxygen-saturated air into the room, removal outside the working area harmful to health human products of production. Most best option of all possible systems ventilation in most types of production.

Validity of engineering surveys- defined by law as 2-3 years. The results with a period of more than 3 years are included in the history of engineering surveys, they are necessary for the conclusion during the re-reconnaissance study.

Obtaining GPZU, SPOZU in Moscow

Obtaining GPZU, SPOZU in Moscow- perhaps in the committee for urban planning and architecture in the city of Moscow, or in the Moscow Committee for Architecture.

First of all, you need to collect a package of confirmed papers. The term of rendering services from the moment of submission of documents to issuance: 30 days.

What is GPZU, SPOZU

What is GPZU, SPOZU- a set of documents properly executed by the responsible person, Scheme of the planning organization of the land plot or in the form of an abbreviation. Describes in detail the special purpose of a particular territory, characteristics and possibilities for construction.

Samostroy

Samostroy- a structure erected without proper permits and approvals. In places not intended for that.

How to legalize unauthorized construction

How to legalize unauthorized construction- you should start by calling a commission from the local authorities of the municipality. Which will issue the necessary confirmations. Directly the decree on the legalization of the building will be obtained in the arbitration court.

Legalization of unauthorized construction

Legalization of unauthorized construction- we apply the latest research and achievements in both technical and legal terms, so that you get the opportunity to solve the problem with minimal effort.

Temporary structure, definition

Temporary structure, definition- Recognized structures and structures that can be moved without causing disproportionate damage. An integral structure, not connected with the ground and utilities, which does not have a rigid foundation, which is not possible to release without destroying the structure.

List of documents for putting the object into operation

List of documents for putting the object into operation- this includes: a statement from the developer and investor on the issuance of documents for putting the object into operation, confirmation of acceptance, a document confirming the parameters of the erected object in accordance with the current regulations. Papers confirming the compliance of the erected building with the technically approved project.

Procedure for registering a land plot

Procedure for registering a land plot– statements describing the purpose of acquiring rights to the site, supporting document indicating perpetual use or lifetime ownership and justifying the reason. An extract from the household book, an act on the receipt of land, is issued by the local government. One document confirming the owner of the land. Confirmation of payment of the state duty and a passport of a citizen of the Russian Federation.

The composition of the redevelopment project

The composition of the redevelopment project- includes: a diagram of the device of partitions, reinforcement of openings. Systems of water supply, sewerage and heating.

Plan before work starts. Measures to ensure industrial and fire safety. Project manager confirmation.

The cost of the renovation project

The cost of the renovation project- includes the cost of drawing up a design, draft and working draft.
Author's supervision.
A significant proportion is the preparation of the necessary documents.
Refurbishment project- pursues the goal of ensuring complete structural safety of engineering systems, operational characteristics and structure structures. Project design standards are regulated in accordance with GOST 21.101-97 and GOST 21.501-93.
Development of a redevelopment project- begins with the provision of documents from the Bureau of Technical Inventory and a sketch of redevelopment.

Mezzanine

Mezzanine- in world practice, an additional room built into the main body of the building, in Russian architecture - a shelf in the upper part of the room used to store a home scrub.

Sample act of inspection of the object

Sample act of inspection of the object- filled in by members of the commission that examined the property and makes a conclusion. Fixing the data in the survey report.

The act of inspection of the property- a document confirming the readiness of the property for operation. Compiled for newly erected and renovated buildings. Compiled by an authorized commission of administrative authorities. It has the task of improving the overall picture of construction.
The act of inspection of buildings and structures sample- a document confirming the inspection of the structure by a group of persons. For the next inspection of the building, only competent persons should be involved, who are obliged to assess all identified deficiencies in the building.
Building Inspection Certificate Sample– cannot be used as a supporting document. Applicable for familiarization with the formal rules for filling out reports.
The act of inspection of building structures- confirms the control and examination of the condition of the structures of the building and structures. In the case of a defect that cannot be eliminated without dismantling the structures, a separate act of eliminating the defect is drawn up.

Control of building structures

Control of building structures- It is carried out upon the erection of a building or structure. In the future, scheduled or unscheduled, it takes place in the presence of a competent commission with the registration of results. And entering the data into the current documentation for further analysis.

Expert opinion sample document- used for the initial drawing up of the conclusion. Can be used as a secondary confirmation, not suitable as a final expert opinion.

Examination of buildings and structures

Examination of buildings and structures- aims to determine the residual resource and technical condition of buildings and structures. An assessment of how much the erected building meets the requirements and how much it meets the industrial safety requirement.

Act technical inspection - carried out in order to confirm the technical inspection of the building. In order to safely operate the building, a commission of authorized members is needed to confirm the readiness of the building for operation.
Building inspection report sample– can be downloaded from our website. It is used as a draft version of the document submitted to the competent authorities for greater accuracy and error reduction.
The act of inspection of buildings and structures- captures the state of the object at the present moment. It details the defects. All changes are recorded in writing, after which the document is certified by the parties of the customer and interested third-party organizations. Does not display the overall set of technical condition.
The act of inspection of the construction site- is compiled at the time of a scheduled or unscheduled inspection of the construction site to identify technical details and compliance of technological operations with the terms of reference.
Act of defecation form- is necessary only in cases of finding a significant defect in the structure of the building and structure. The form can be downloaded from the website of the local authority "Rostekhnadzor".
Fault detection act- a document certifying that the building and structure cannot be used for its intended purpose. Has severe defects, needs serious repairs. Compiled by an authorized commission of specialists.
Opening in the bearing wall cost - the price consists of the complexity of the technical implementation. In particular, the material of the wall, brick, monolithic concrete Or a panel house. Based on the material, choose the tool. Depending on the chosen tool and the classification of specialists, the final figure is added up.

Opening reinforcement project

Opening reinforcement project- is developed by design organizations - members of the SRO or the authors of the building project. According to housing legislation, openings in load-bearing walls have a significant impact on safety. Therefore, they must be properly drawn up at the Moszhilinspektsii.

Gain metal beams

Reinforcement of metal beams- It can be local or general. Local reinforcement due to welding of additional stiffeners. General - the creation of the lower belt of sprengels, the removal of the reference voltage.

Concrete expertise

Concrete expertise- reconciliation of the actual quality of the product with the characteristics shown in the project documentation.

The highest quality strength measurement is carried out using concrete cores taken from the finished building.
Determination of concrete strength- it is possible to determine by the method of destructive control, indirect non-destructive and direct non-destructive. Ultrasonic testing. Regardless of the method or equipment, the measurement error is never less than 30%.
Concrete testing laboratory- concrete composition is complex, and therefore, an analysis of each component is necessary for evaluation. The laboratory selects the required composition of concrete, depending on the technical specifications, as well as the composition of gravel, cement, sand. Determination of properties of vibrations and reinforcing bars.

Methods for quality control of welded joints

Methods for quality control of welded joints– Distinguish destructive methods of control. The model of the welded product is subjected to mechanical tests. And unbrakable control: visual, pneumatic and hydraulic tests. Magnetographic and X-ray control.
Ultrasonic control.

Flaw detection laboratory- a set of tools and methods aimed at the production of flaw detection testing by all available methods: destructive and non-destructive testing, ultrasound examinations, visual control, etc.. Engaged in the development of methods for detecting defects and creating practical devices based on their principles.
Checking the quality of welds- there are several types of welds, depending on the purpose, the quality also varies. Accordingly, control methods.
Weld test- carried out after cooling, may vary depending on the purpose of the connection. Distinguish control visual, ultrasonic and x-ray.
Weld control- visual, ultrasonic or x-ray method for examining the result of welding work. To check the quality of the connection.

Design of buildings and structures

Design of buildings and structures– is carried out on the basis of the terms of reference, geological conditions and regulatory acts and laws.

Project documents undergo multiple checks through authorities and regulatory authorities and are approved only after general agreement.
Building project- a graphically and mathematically modeled and documented building model used to create an estimate and more detailed study of operations during the construction of a building.
Construction design - development of the most optimal technological process in accordance with economic models, given technical conditions and its geological capabilities.
Building facade design- settlement and graphic works, as well as a general and sectional plan of the facade of the building, taking into account the specific site and the specifics of its operation and construction.
Building design price- design cost, a complex set of key costs (work of specialists, costs of work, etc.)
Building design cost- the total cost of creating a project with the participation of technical specialists, developing solutions. As well as overhead, legal and other expenses.
Sample projects– we finalize, refine and process standard projects for your tasks, technical solutions and wishes. Sample project usually the basis of all private projects is used to reduce the same type of work.
Project shopping center - compiled taking into account supply chains, human flows, urban communications. Closely integrated with the housing economy and infrastructure facilities.
Project working documentation, working draft - a set of transitions, operations and plans from different angles for the production of specific technical actions(masonry, finishing, facade plan, sectional plan).
What is project documentation- a set of graphic and calculation materials that make up the apotheosis of preliminary work in preparation for the construction of a building and structure.
Design of industrial facilities- similar to other types of design, but taking into account the financial and budget analysis, calculations of product sales. Designing with the implementation of all possible measures for the successful implementation of the project.
Production design- in accordance with the requirements of regulatory and technical acts. Taking into account the use of production equipment and materials. The basis is a project developed specifically for you, taking into account the preferences and recommendations of the customer. No generic solutions.

measurements

measurements- a set of actions aimed at accurately measuring the dimensions of the room (width, height, volume, area). Necessary for repair, cost estimation installation work. When installing communications, cosmetic repairs and other actions.

Measurement of premises- the primary procedure is integral to the examination, repair, redevelopment. Other technical or legal actions in relation to the premises.
Room measurements cost- this includes the cost of remuneration to specialists, overhead costs and depreciation of equipment. Also, the price varies greatly depending on the size.

In the case when a real estate object is acquired, as well as during its reconstruction, a conclusion on the technical condition of the building and communications, drawn up based on the results of the work, during which an inspection of engineering networks and building structures was carried out, becomes one of the main documents that allow assessing the possibility of stable operation of the object real estate in the new conditions.

Are surveys really necessary?

Any building requires a periodic survey of communications, both external and internal. The need for such work is caused by the deterioration of networks, and if the maintenance services do not constantly monitor their condition, then an emergency situation may occur, leading to material damage. Equally important is a comprehensive survey of structures and networks at the stage of assessing the cost of the purchased object. If external communications and internal networks are in good condition and fit for use as intended by the new owner, then the value of the property has one value. If after the purchase it is necessary to shift or repair networks, reconstruct the life support systems of the building, then these costs should be taken into account when determining the final cost of the purchase. For more than a year now, the conclusions made by Expertsystem based on the results of surveys have made it possible to determine the optimal cost of the object for both parties.

In the case of a building reconstruction, a survey of building structures and networks is mandatory. The conclusion about this work is one of the main documents in the list of initial data for design. In addition, the results of the work during which the survey of engineering systems and building structures was carried out, drawn up in the form of a report, become a document on the basis of which the examination bodies evaluate the correctness of the decisions laid down in the project, on their compliance with the requirements of current standards and issue a conclusion on the suitability of the documentation to implementation. And the conclusion of the examination, in turn, is necessary to obtain a permit for the construction and reconstruction of a property. It should be noted here that the reports on technical surveys performed by the Expertsystem company are always accepted by the examination bodies without comments.

Inspection of engineering networks is the key to the operability of building life support systems

To assess the condition of the property, a technical examination of the engineering networks of the building and building structures is carried out, which is stipulated when the customer draws up the assignment for work and is taken into account by the contractor when developing the survey program. When determining the operability of engineering networks of a building, Expertsystem performs the following work:

• visual and instrumental inspection of pipelines for water and heat supply, sewerage, steam and gas pipelines that provide the property with these types of energy resources. Examination of external networks is carried out from the point of insertion into the main networks specified in the act of dividing the boundaries between the energy supplier and the owner of the property, to the point where the network enters the building;
• inspection of the water supply system, when the compliance of the pipe diameters with the executive documentation, the presence and condition of the valves, the safety of the structures of the wells are checked. When examining internal networks of cold water supply, the state of piping, the performance of shut-off valves, and the presence of flow meters are recorded. The technical report must indicate the presence, location and serviceability of fire hydrants, as well as the completeness of fire hydrants inside the building and the operability of the fire water supply;
• sewer inspection, during which the condition of inspection, control and overflow wells, trays is determined, the diameter and material of pipes are fixed, the presence or absence of counterslopes between wells is checked. Internal sewerage checked to determine the degree of sealing of pipe joints and the safety of wastewater receivers;
• inspection of ventilation and air conditioning systems, which determines the degree of wear and contamination of air ducts, the reliability of ventilation equipment, the reliability of thermal insulation of air intake points supply ventilation, the safety of louvered grilles and deflectors. The safety and operability of the fire smoke exhaust system is checked;
• inspection of electrical networks, when the operability of the power supply line of the facility is checked from transformer substations, where cables are connected (if there are two or more inputs) to the input distribution devices inside the building, the characteristics of the cable are recorded. Inside the building, the brands of wires and cables, the brands and serviceability of power shields and lighting shields, and the safety of terminal devices are determined. The presence or absence of a ground loop is also noted.

A full survey of engineering systems is a rather labor-intensive work and requires highly qualified performers. But the results and recommendations obtained will make it possible to specifically determine the amount of costs necessary to bring the engineering networks of the property to a state that guarantees safe operation buildings and the absence of claims from supervisory authorities. Exactly this kind of work is offered by the company "Expertsystem", which employs high-level specialists who use modern instruments and software during examinations.

Inspection of building structures - checking the reliability of the building

Simultaneously with the determination of the state of engineering networks, a survey of the structures of the building or structure is carried out, based on the results of which a conclusion is made about the state of individual structural elements, and recommendations are issued on ways to eliminate the identified deviations from the normative indicators. Depending on the scope of work provided for by the task, the following is performed:

• survey of the foundations with the determination of the depth of their laying, the dimensions of the sole, and, if necessary, the pits are opened, and the condition of the foundation soils is checked. Most often, simultaneously with the foundations, a basement survey is carried out, when the safety of the walls, the tightness of the entry points of engineering communications into the building, the design and safety of the floors are fixed;
• examination of columns, crossbars, beams, floor slabs, during which their actual dimensions are measured, if necessary, the reinforcement of structures and the strength of concrete are determined by non-destructive methods, on the basis of which a conclusion is made about the possibility of transferring additional load to the frame elements (during the reconstruction of the building) and the suitability of the elements frame for further use. Measurements of the support values ​​of structural elements are also made in order to finally give recommendations for their increase;
• mandatory instrumental examination of the metal structures of the building frame. During these works, the absence of damage to the elements is checked, deflections are measured, and the state of anti-corrosion protection is determined. The supporting units of the structures are examined, while the presence, number and diameter of bolts, nuts and washers or the length and leg of welds are recorded. Based on the results of the stage of work, when the inspection of metal structures was carried out, the report proposes measures to correct the identified shortcomings, including the necessary reinforcement sketches. The results of visual and instrumental surveys are taken into account when developing design solutions for carriers steel structures reconstructed buildings;
• inspection of the walls, when the thickness and material of the fence are checked, if necessary, samples are taken to determine the thermal characteristics of the structures and their compliance with energy saving requirements. The quality of the panel joints and the condition of the sealing materials are checked.
• inspection of the roof of civil buildings with attics, during which the condition of roof structures and places of their support, integrity and availability of fastening elements roofing materials with a pitched roof, the safety of gutters and pipes, the quality of the thermal insulation of the attic floor. With a flat or low-slope coating, the roof inspection consists in assessing the condition of the rolled carpet, as well as determining the physical and mechanical characteristics of the existing insulation. This stage also serves as the basis for the development of measures to improve the energy efficiency of the building.

Who can be trusted to conduct surveys

A comprehensive survey of engineering systems and building structures is a very complex and responsible work, when an error can lead to quite serious consequences. Therefore, enterprises providing services of this profile must have a permit. self-regulatory organization, confirming the availability of qualified personnel, as well as the necessary material base. There is such a tolerance and the company "Expertsystem".

The Expertsystem company has been performing inspections of buildings and structures in Moscow and the Moscow Region for several years, and each time the reports made by the company's specialists received positive reviews from the expert bodies, and the assessment of the condition of the property became the basis for determining the fair price for the building or structure.