According to the survey results building structures a report is drawn up on the technical condition of the structures of the building (structure).
In accordance with GOST 31937-2011 "Buildings and structures. Rules for the inspection and monitoring of the technical condition" there are 4 categories of the technical condition of building structures:
What is included in the technical report obtained as a result of the survey of the building:
The technical survey report consists of a text part, photographs, graphics and applications, and contains the following sections:
Title page includes
full name of the reporting document,
the name of the survey object and its location,
the name of the specialized organization performing the work, and
SRO certificate number with admission to this species works,
year of work performed, approval by the head of a specialized organization.
The Introduction section contains:
2.1. justification, information about the organization conducting the technical inspection; customer data; data on the operating organization;
2.2. copies of documents for the right to work
2.3. terms of reference - agreed with the customer, it spells out all the goals and objectives of the survey;
2.4. survey program - agreed with the customer, it describes the stages of the survey;
2.5. leading scientific and technical documentation - a list of GOSTs, SPs and SNiPs used in the survey;
2.6. composition of specialists - a list of specialists who carried out surveys, and their qualifications;
2.7. a list of instruments and equipment - with information on the verification of these instruments and equipment.
The section "Analysis of technical documentation" provides data on the presence/absence of design technical documentation for a given building (structure), information on design, construction organizations, BTI passports, results of previous examinations, etc.
4.1. General survey data
The section describes the stages of work:
preliminary (visual) examination,
detailed (instrumental) examination,
as well as a description of the scope of work.
4.2. Results of visual inspection of building structures
The section provides a description of the building structures of the building (structure), identifies defects and damage, and provides a preliminary assessment of the technical condition of the building structures.
4.3. Results of visual survey of engineering networks
The section describes those present in the building network engineering, their defects and damage are revealed by external signs.
4.4. Results of a detailed (instrumental) examination
This section provides:
1) actual dimensions between the axes of the main structural elements: spans, column steps, height marks, distance between nodes;
2) floor plans, sections, facades, roof plan;
3) deviations of the overall dimensions of the section and lengths of structural elements from the design ones;
4) actual strength characteristics of the main building materials;
5) defects and damage to elements, assemblies and their layout (a defective statement is drawn up if it is necessary to calculate the volume of repair and restoration work).
Depending on the type of building structures, GOST provides for a certain number of works, which in each case are determined by the goals and objectives of the survey and may differ from the list above.
6) conclusions with a brief summary of the description of the identified defects and damages, the reasons for their occurrence;
7) the conclusion of the technical inspection of the building (structure);
8) recommendations for the elimination of identified defects. Recommended measures are indicated to strengthen structures, eliminate defects and damage, and bring them in line with the requirements of the NTD.
4.5. Results of verification calculations
The section presents the results of the performed verification calculations of structures and their elements
4.6. Roll and draft control
If deflections, rolls, settlements, etc. are visible during visual inspection, then this section provides information on the results of measurements of these defects with geodetic instruments.
The section contains an extract from GOST with a list of categories of technical condition of building structures.
It is issued in accordance with the mandatory Appendix B of GOST 31937-2011 "Buildings and structures. Rules for the inspection and monitoring of the technical condition."
The section provides an assessment of the technical condition of building structures with the rationale for the assigned category of technical condition.
The section also provides recommendations on the elimination of identified defects and damages, indicates the recommended measures to strengthen structures, eliminate defects and damages, and bring them in line with the requirements of the NTD.
In the event of a partially functional or emergency state of the object, a task is prepared for the design of measures to restore or strengthen the structures.
7.1.
Photograph results
The section contains photographs of facades, roofs, interior spaces building, defects and damage, pits and structural openings.
7.2. Copies of qualification certificates
7.3. A copy of the license for software products used in verification calculations
7.4. Graphic materials
The section presents the results of field measurements of foundations in pits, floor plans, characteristic sections, measurement schemes, defect location schemes, facade drawings, etc. depending on the goals and objectives of the survey.
A technical report with a conclusion on the technical condition of buildings (structures) is signed by the persons who carried out the technical inspection and approved by the head of a specialized organization.
Based on the results of a technical inspection of buildings (structures), measures are developed to eliminate the identified deviations from the requirements of regulatory and technical documents, safety requirements and bring the building (structure) into working condition.
The engineering and technical center "QUALITET" provides services for the inspection of buildings, structures and structures with the execution of a full technical report.
Expertise customer:Moscow 20__
CONTENT
1. General Provisions
2. Technical inspection of buildings and structures, Purpose and objectives
7. Conclusion
9. List of used literature
Attachment 1.
Verification calculations
1. Verification calculation of a monolithic beam ceiling, taking into account the existing screed
2. Verification calculation of a monolithic beam ceiling without taking into account the weight of the existing screed
3. Verification calculation of a monolithic ceiling with a steel profiled flooring, taking into account the existing screed
4. Verification calculation of a monolithic ceiling with a steel profiled flooring without taking into account the existing screed
Appendix 2
Photofixation documents
Appendix 3
Protocols for determining the strength of materials
Appendix 4
Graphic materials
Appendix 5
Qualification documents
1. General Provisions
This technical report on the results of the survey was made by PROEKT.RU LLC in accordance with terms of reference The customer, based on the results of the survey of a monolithic concrete floor on volume. - 0.100 of the building of a public catering enterprise located at the address: During a visual inspection of the building, the detected defects and damage to building structures are divided into 3 hazard categories - A, B and C, in accordance with the signs established by RD 22 - 01.97:
A - defects and damage to especially critical elements and joints, representing a risk of destruction.
B - defects and damages that do not threaten at the time of inspection the danger of destruction of structures, but can later cause damage to other elements and assemblies or, with the development of damage, go into category A.
B - defects and damage of a local nature, which, during subsequent development, cannot affect other elements and structures (damage to auxiliary structures, platforms, local deflections and dents of unstressed structures, etc.). The assessment of the technical condition of building structures and the building as a whole was carried out using the following categories of condition according to SP 13 - 102 - 2003:
Good condition - a category of technical condition of a building structure or a building and a structure as a whole, characterized by the absence of defects and damage that affect the reduction in bearing capacity and serviceability. Operable - a category of technical condition in which some of the numerically estimated controlled parameters do not meet the requirements of the project, norms and standards, but the existing violations of the requirements, for example, in terms of deformability, and in reinforced concrete and crack resistance, in these specific operating conditions do not lead to a violation of performance , and the bearing capacity of structures, taking into account the influence of existing defects and damage, is ensured. Partially operable - a category of technical condition of structures, in which there are defects and damages that led to some decrease in the bearing capacity, but there is no danger of sudden destruction and the functioning of the structure is possible by monitoring its condition, duration and operating conditions. Inadmissible state - a category of technical condition of a building structure or a building and a structure as a whole, characterized by a decrease in bearing capacity and operational characteristics, in which there is a danger to the presence of people and the safety of equipment (it is necessary to carry out safety measures and strengthen structures). Emergency state - a category of technical condition of a building structure or a building and a structure as a whole, characterized by damage and deformation, indicating the exhaustion of the bearing capacity and the danger of collapse (urgent emergency measures are required).
2. Purpose and objectives of the survey
Survey objectives:
1. Assessment of the technical condition of floor structures at el. - 0.100 building of a public catering establishment and determination of the possibility of its long-term operation according to its functional purpose;
2. Determining the possibility of loading the examined floor with a useful uniformly distributed load of 500 kg/m2. The objectives of the survey included:
- checking the bearing capacity of the floor for a given load;
- collection and analysis of existing design and technical documentation;
- detection of overlapping defects;
- identification of the actual structural performance of the floor, deviation from the design solution (if any project documentation) and compliance with the requirements of SNiP;
- determination of the physical and mechanical characteristics of materials used in load-bearing structures;
- assessment of the bearing capacity of structural elements, based on the actual strength characteristics of materials and loads;
- determination of the possibility of long-term operation of the ceiling according to its functional purpose;
- preparation of a report on the results of the survey.
3. Methods of examination, devices and instruments
When examining the structures of the building, visual and visual-instrumental methods were used. Visible defects of building structures were visually detected: cracks, deformations, displacements of bearing elements relative to design positions, etc. The geometric dimensions of building structures and individual elements were clarified by visual-instrumental methods, the real physical and mechanical characteristics of the materials of building structures were studied. To assess the spatial position of the building structures, the requirements of SNiP 3.03.01 - 87 "Bearing and enclosing structures" were used. Linear measurements were performed with a DISTO laser rangefinder and a standard tape measure.
4. Information about the documents reviewed during the survey
For the survey, the Customer provided the following documentation:
- CD album, developed by __ "Architectural Studio";
- Certificates of examination of hidden works (reinforcement of the ceiling, concrete).
5. Feature constructive solution object of examination
Overlapping - technical conclusion based on the results of the survey
Overlap at el. - 0.100 m can be conditionally divided into two sections: Section No. 1 - monolithic reinforced concrete ribbed floor, located in the axes "10 - 50 / A - B". Bearing beams - monolithic reinforced concrete, two standard sizes, installed with a step of 3 ... 6 m. The thickness of the monolithic ceiling shelf is 100 mm. Reinforcement of the shelf is made with reinforcing mesh in the upper and lower zones, with a cell of 200 mm, 10 class A - III. The ceiling is supported by reinforced concrete columns of the frame and external reinforced concrete walls; Plot No. 2, the floor of the room is circular in plan - monolithic reinforced concrete with a fixed formwork made of steel profiled Nastal, arranged on metal beams of a rolled profile. The overlap is located on the sides of the axes "A", "10". Structural solution established based on the results of structural probing:
The dimensions of the steel I-beams of the rolled profile used in the ceiling at section No. 2 correspond to the standard STO ASCHM 20 - 93 / The layout, sections and dimensions of the load-bearing beams are presented in Appendix 4 sheet 1.
6. Strength characteristics of materials
The compressive strength of concrete was determined by the shock pulse method in accordance with GOST 22690 using an electronic device IPS - MG4.01 based on the basic calibration dependences installed in the software device in combination with individual calibration dependences obtained by the specialists of PROEKT.RU LLC based on the results of tests of similar samples by destructive testing methods. The results of determining the strength characteristics of the materials of the main structural elements of the building are shown in Table 1.
Table 1
Protocols for determining the strength of structural materials are given in Appendix 3.
7. Conclusion
Based on the survey of the overlap at elev. - 0.100 m installed:
Overlappings
1. Overlapping - monolithic reinforced concrete ribbed in the axes "1 - 50 / A - B". Overlapping thickness - 100 mm. The ceiling of the room, round in plan, is monolithic reinforced concrete with fixed formwork made of steel profiled Nastal, arranged along rolled steel beams.
2. As a result of the verification calculations (see Appendix 1 "Verification calculations") of the examined sections of floors, the following was established:
- the bearing capacity of a monolithic ribbed floor in the axes "10 - 50 / A - B" without taking into account the weight of the screed with a thickness of δ = 12.5 cm is sufficient to absorb the designed loads, including a useful uniformly distributed load of 500 kg / m2 (see calculation No. 2). If the weight of the screed is taken into account, the bearing capacity of the slab part is not ensured (see calculation No. 1).
- the bearing capacity of the combined ceiling on the side of the axes "A", "10" (monolithic slab on steel I-beams of the rolled profile) without taking into account the weight of the screed with a thickness of δ = 12.5 cm is not enough to perceive the designed loads (500 kg / m2) due to the fact that the strength of a monolithic slab is not ensured (see calculation 4). At the same time, the bearing capacity of the steel floor beams is ensured even taking into account the weight of the screed (see calculation 3).
- The maximum allowable load on the combined floor, located on the side of the axes "A", "10" is q=230 kg/m2; 
Rice. Plot of maximum moments when applying a payload of 500 kg/m2. Sections of the diagram, where the sufficiency of the bearing capacity of the slab is not ensured, are highlighted in white on the diagram, indicated by arrows;
3. Defects and damage to floors of categories "A" and "B" were not found. The technical condition of the floors is operational.
8. Findings from the survey
1. As a result of natural - visual and instrumental surveys of building structures and units of the floor area, the conditions for their operation were identified, the actual strength characteristics of the materials of structural elements were determined, and the technical condition was assessed. The survey showed that, in general, the overlap and knots were made in compliance with building codes and rules, are not subject to excessive precipitation, deflections, rolls, deformations, cracking (due to climatic influences, design loads and other factors), etc.
2. In accordance with the results of the survey, the technical condition of the ceiling at el. - 0.100 is assessed as workable.
3. The bearing capacity of a monolithic ribbed slab in the axes "A - B / 10 - 50" (rectangular in plan) is sufficient to absorb the designed loads (including a useful uniformly distributed load of 500 kg / m2), subject to the dismantling of a leveling screed with a thickness 12.5 cm.
4. The bearing capacity of the combined floor (3/4 round in terms of the sector) will be sufficient to absorb the designed loads (including a useful uniformly distributed load of 500 kg / m2) only if the leveling screed 12.5 cm thick is dismantled and the monolithic floor is strengthened in sections with internal forces exceeding the limit (for the location of these sections, see clause 2 of section 7 of this Conclusion).
Pages previous
Well, this report is a little better... if it's not a secret, how much does 14 pages of the report cost? From the comments, I would like to know how the bearing capacity of floors, coatings, lintels and walls was determined. There are no characteristics of wall materials, their thickness.
1. Beton Condtrol - not included in the state. register as a device for measuring strength. And he will not be brought in - he is denied. So either IPS or ONYX or Schmidt (from the advanced ones).
The method for determining the strength of materials is not specified - shock impulse, rebound - etc.
(I did not see the verification of instruments and laser tape measure).
2. I did not see the opening of the roof - the definition of the actual composition of the roofing pie.
3. The serial affiliation of prefabricated reinforced concrete elements has not been determined (where did the bearing capacity come from ???). You can determine the strength of concrete, reinforcement - open or determine the reinforcement detector - and read or determine the serial affiliation.
4. Verification calculations must be given, and not just the results.
5. Graphics - on top (well done).
6. Modestly with conclusions, it is necessary to give fundamental decisions on strengthening.
And so, in general, it’s normal, better than many on which you have to work during reconstruction.
Yes, one more thing - the places for determining the strength of materials and the table of results, what the coefficient of variation, etc. are not indicated.
Conditional report. (if you report the calculations, then 5 iron).
Pluses - a good graphic part, list of defects is also fine.
Photo fixation could not be viewed (I don’t know how to open this strange format for me).
Cons - the lack of calculations in the text.
Lack of photographs in the text - if they were, it would be very enlivening.
It would not be bad to bring acts of non-destructive testing.
Didn't get into the content.
1. doc and dwg format. Why heavy, because of photofixation.
2. At the expense of Beton Condtrol - we will take into account.
3. We open the roof, but not always.
4. Verification calculations are made at the request of the customer.
5. Why there are no fundamental decisions in the conclusions, because we give freedom in decision-making to designers, we do not want to limit them.
The report is normal.
Actually it is not clear for what purpose it was written. Typically, examiners are invited to:
- to find out the real state of affairs (then everything is described too gloomy)
- to knock out money for repairs (then a bias is given to solving problems, and not just their description).
PS To dismantle brick walls because of their defects - somehow too much - can shift?
Great, but the graphics are even more than required....
Now some offices produce a similar worker :)
Notes:
1. Introduction: After the "Purpose of the work" the Program of work is drawn up.
2. After the conclusions, it is necessary to make a decision - ON TECHNICAL CONDITION (Section 7).
3. Section 7 is moved by design to section 4.
4. Section 8.3. Works to strengthen and eliminate defects in building structures, to be supplemented with the words "ACCORDING TO THE DEVELOPED PROJECT DOCUMENTATION".
5. Section 7. Conclusion on the technical condition to draw up on a letterhead, developed by the organization conducting the survey or standard form.
6. Place the conclusion after the title page.
7. Section 9. The list of references does not correspond to the one used in the test part.
Conclusion (report) on the results of a technical survey is the final document. It must include substantiated answers to all questions posed in the assignment for the technical survey. The text of the conclusion should be written in a clear, understandable language for specialists and short enough. Everything that can overload the conclusion with information should be attributed to applications.
The structure of the conclusion may be different. It seems that in the most complete form the text of the conclusion should consist of the following parts:
1. Title page.
2. List of performers.
3. Brief historical information about the object.
4. Characteristics of the constructive solution of the building
or structures.
5. Description of the state of structures at the time of the survey.
6. Conclusions on the results of the survey.
7. Recommendations for the further operation of a building or structure.
8. List of used literature.
9. Application.
The title page contains the name of the document and the details of the organization that conducted the survey.
The list of executors includes all the executors of the technical survey, indicating the position, sections and paragraphs of the conclusion in which each of the executors took part, their signatures.
A brief historical note about the object contains information about the author of the project, the time of construction, major repairs and reconstruction. This section may contain drawings or photographs of building facades after construction and during the survey period. Be sure to note whether the object is an architectural monument.
The Characteristics of the constructive solution of a building or structure describes the structural scheme of the building or structure, the number of floors, the construction of foundations, walls, ceilings and coatings, roofs, stairs, balconies, partitions, window and door fillings, floors, type finishing works. This section contains floor plans and sections.
In the Description of the state of structures at the time of the survey sequentially, usually starting from the base and foundations, a description is given of the state of all structures of the building and structure, indicating deviations from the project and all identified defects (technical diagnostics). Acts of surveys of individual structural elements are not included in this section of the conclusion. Themare placed in the application, and links are made to them in the description. This section can contain scans of foundations and walls with cracks applied to them, areas with high humidity, broken plaster; plans of floors, coverings and roofs indicating the places of identified defects. Photo fixation of defects and cuts along the pits, so as not to overload the main text of the conclusion, it is better to place in applications.
At the end of the description of the state of each structural element (foundations, walls, ceilings, etc.), an assessment of its technical condition and the degree of physical wear (diagnosis) should be given.
The physical deterioration of structures, buildings or structures is understood as the loss of their original technical and operational qualities.
Physical wear and tear is expressed by the ratio of the cost of necessary repair measures to eliminate damage to structures or the building as a whole, and their replacement cost.
To assess the physical deterioration of residential buildings and their structures, there are Rules for assessing the physical deterioration of buildings, which can be used to assess the physical deterioration of buildings that are similar in design to residential buildings.
The conclusions of the survey should be repeated technical condition assessment of each structural element from the previous section of the conclusion and assessment of the state of the entire object as a whole (diagnosis), as well as the reasons for the appearance of the identified defects.
In the Conclusions, a conclusion is made on the need to strengthen structures, overhaul, the possibility of reconstructing a building or structure in accordance with the assignment for a technical survey. The conclusions are divided into paragraphs.
If it is impossible to obtain comprehensive information during the survey period (due to its short duration), then in this part a conclusion is given on the need for further observations of the object (for further deformation of the base, development of cracks, etc.).
If in the assignment for technical inspection the question is raised about the forecast for the further behavior of the object being examined, then in the Conclusions, possible changes in the state of the object (technical forecasting) should be predicted for a given period. If in the taskthe technical survey raises the question of the state of the structures at some point in the past (for example, before the accident), then it must be answered based on the analysis of the survey materials (technical genetics).
In the Recommendations for the further operation of a building or structure proposals are given on methods for strengthening building structures in connection with the defects identified in them or due to an increase in loads during the proposed reconstruction of a building or structure. Recommendations should contain proposals for further observations of structures (installation of beacons on cracks, geodetic works to determine the dynamics of development of building deformations, etc.).
The List of References indicates the list of normative and reference materials used in the technical survey (SNiP, manuals, manuals,recommendations, guides).
Applications include:
- task for technical inspection of a building or structure;
- measurement drawings of a building or structure;
— materials of engineering-geological surveys;
— materials of geodetic works;
— certificates of examination of structures;
— results of material testing;
- calculations of the degree of wear of building structures and the entire building as a whole;
- verification calculations of building or structure structures;
— other materials on the basis of which conclusions were drawn and recommendations were given.
During preliminary visual surveys of non-complex objects, the conclusion on the results of a technical survey may be small in volume, but it must necessarily contain a brief historical note about the object, a description of the constructive solution of a building or structure, a description of the state of structures at the time of the survey, conclusions and recommendations.
The conclusion (report) on the results of the technical survey may consist of one volume. With a large amount of material in the appendices to the conclusion, it is advisable to present them in a separate volume.
A technical conclusion is a document that is drawn up based on the results of a survey of the building as a whole, its individual premises, structural elements or engineering systems. This procedure is necessary to assess the state of the object, survey and predict the possibility of its operation in the future. For example, before carrying out redevelopment or changing the functionality of a building / room, a thorough study must be carried out. Based on its results, a conclusion is issued on the possibility / impossibility of carrying out the planned work.
A technical opinion can only be issued by that design organization that has the appropriate tool base, admission to the SRO and execution of documentation that affects the safety of further operation of cap facilities. construction.
A technical inspection of buildings or their individual elements, on the basis of which a conclusion is drawn up, is carried out in the following cases:
Thus, in those In conclusion, the design organization may reflect the following information:
At the first stage, the specialists of the design organization get acquainted with the object, the available design documentation and, based on the data obtained, form the goals and objectives of those. examinations.
At the next stage, special tools and technologies are involved: geodetic survey, opening of individual structural elements and photographic fixation of their internal state, measurement of actual overall dimensions, assessment of the state of joints, connections of elements, etc.
And the final stage is the design of those. conclusions.
Thus, the technical conclusion is an important document, the execution of which should be trusted only to specialists. Without it, it is legally impossible to carry out even an elementary redevelopment in an apartment, not to mention such global works as the reconstruction of entire buildings or the modernization of engineering networks.
