Integrated assessment of contractor’s building production culture during facade repair

The article deals with the methodology of assessing the culture of construction production of the contractor on the object of capital repairs, in particular repairs of facades of apartment buildings. Due to the fact that the culture of production is a mirror of labor relations, a mirror of human, political and economic maturity of managers, the quality of work performed will directly depend on this. For complex assessment 8 groups of criteria were determined, which, depending on the types of work, contain various controlled indicators, estimated by the linear function of the associated values.


Introduction
The first thing that attracts the eye of a person when he comes to another city is the city facades. They can be beautiful or just gray and nondescript, but they attract the eye [1][2].
In most European cities, the municipalities and their authorities are very strict about who is doing what on the main streets and on the facades of the buildings and monuments. This is not surprising, because in fact, these are the components of the face of the city and it needs to be cared for and maintained properly.
In Russia, the existing regulatory documents set an overhaul period for facades for 10 years. For buildings located in the Central part of the city or on the main highways, it is 5 years.
Works on the device of systems of external warming of facades of buildings are provided only in the presence of calculation about unsatisfactory thermal technical characteristics of enclosing designs of buildings made by the specialized organizations.
In the presence of a base overhaul of the property owners of premises located in an apartment house, at the General meeting decide on preparation and carrying out of capital repairs of property, which in accordance with Chapter 6 of the town planning code and with the requirements specified in Chapter 37, § 4 of the Civil code, determine the face on which lay the obligations on implementation of functions of technical customer and conclude a contract.
Mandatory document for the performance of works on major repairs, reconstruction, and restoration on the facades is the Passport of the color solution of the facades of buildings, structures, structures. [ Major repairs, reconstruction, restoration and restoration of buildings should be carried out on projects including the project of works (PWR), developed in accordance with the requirements of SP 48.13330.2011 "construction organization". [3] For objects that are architectural monuments or valuable historical buildings and projects, prior approval and agreement should be reached with the Committee on cultural heritage.
Control over the correct performance of repair work and compliance with their recommendations Passport, design documentation, current rules and regulations should carry out customer service supervision.
Contractors for work on finishing and repair of facades are determined on a competitive basis, through tenders. As a rule, the lowest price plays a decisive role in this issue, given that the lowest bidder often wins the contract. This, in turn, fuels the environment for poor performance by contractors to generate at least some profit.
Operational parameters of the facade directly depend on the qualification and integrity of contractors. The presence of a large number of repair facilities in the city and a large amount of hidden work, due to technology, makes it difficult to control the quality of work and check the compliance of the materials used during the overhaul, which can lead to deterioration of quality.
Construction facilities are most often exposed to various risks, the most dangerous of which are fire risks. Warehouse premises, pumping stations and tank farms have been and remain the most firehazardous facilities. [4][5][6][7][8][9] In spite of introducing advanced fire extinguishing technologies, combating fire risks at capital construction warehouse facilities remains an urgent and very pressing problem. Recent years have shown that major fires and disasters cannot be prevented. [5][6][7] Unsatisfactory quality is more facilitated by the low level of project documentation without reference to a specific object. At the same time, often the contractor is replacing expensive certified material with a cheap analogue. The appearance of defects [8][9][10][11] contributes to the low quality of installation works that do not ensure the evenness of the walls, the involvement of organizations that do not have special training and licenses for the production of facade works.
The technical customer is more interested in the scope and timing of work, because at the legislative level, a five-year warranty is established by the contractor. However, there is no guarantee that after a while this contractor will cease to exist, which is often practiced. Therefore, it is necessary to initially force the contractor to perform all the work efficiently.
The purpose of this work is to determine the precise controlled parameters necessary for a comprehensive assessment [4][5][6][7] of the contractor's building production culture performing facade repair work.

Materials and Methods
For the integral assessment of the repair and construction organization performing facade repair work, it is necessary to determine a set of criteria that affect the quality of work performed [8][9][10]. Then normalization of values of indicators by means of linear function of belonging of values of an indicator to a standard interval [0, 1] is carried out.
The assessment of the quality of compliance with the requirements of a separate group of indicators is calculated by the formula: The integral rating indicator of contractors performing facade repair works, taking into account all groups of quality indicators, is calculated by the formula: where, nnumber of indicators.
We get a 100 point system of evaluation and ranking of contractors in three main groups: group 1from 80 to 100 points; IOP Conf. Series: Journal of Physics: Conf. Series 1425 (2020) 012066 IOP Publishing doi:10.1088/1742-6596/1425/1/012066 3 group 2from 50 to 79 points; group 3from 0 to 49 points. Group 1 contractors include responsible organizations whose activities contribute to the quality of repair work.
The contractors of group 2 are medium-sized organizations whose activities require corrective measures and additional inspection visits.
The contractors of group 3 include organizations with low responsibility, whose activities do not guarantee the quality of repair work. It is recommended that the third group of contractors be removed from the work with the subsequent transfer of objects to other contractors of the highest group.
All indicators are adopted in the standard interval [0-not met, 1-met], which allows you to quickly identify dishonest organizations and discipline contractors in groups 1 and 2. The weight of indicators in this work is determined by their number. Depending on the content and nature of the consequences taken into account, it is customary to consider risk as a multidimensional category: financial, category of deviation from the goal, probabilistic, and also used individually or together collectively [18][19][20].

Results and Discussion
Thus, the risks penetrate deeper into the activities of construction production, associated not only with the format of interaction with contractors, but also with the costs of attracting and retaining the client [17][18][19][20][21][22][23]. Table 1 illustrates the assessment form of repair construction activities for contractors performing repair work.

IC* -inspection control
The inspector and the representative of the Contracting organization sign the form. After signature, the data is entered into a spreadsheet to calculate the final evaluation of the contractor. For the convenience of information presentation, it is proposed to build diagrams with proper visualization of the level of responsibility of contractors. Figures 1 and 2 show examples of the results of four inspection visits to the capital repair facility. In this example, the contractor received 53 points, which is assigned to group 2. The technical customer has the right to hold a final meeting directly at the inspection site to determine further actions [24][25] to eliminate violations and comments. During the meeting, it is necessary to agree on the timing of the development of corrective measures and their implementation.

Conclusions
Industrial culture is a part of the general culture of each resident of the country. To solve the problems of lack of culture of construction production, it is necessary to share the desire to keep your country clean and tidy. Strict norms and the absence of determining factors (all parameters must be equivalent) assessment are the key to discipline. We have a lot of work to do, first of all, on our own internal culture.