Factors of quality reduction of exploitation of pitched roofs with a cold attic in conditions of dense urban development

Dement'eva, Marina

doi:10.1051/matecconf/201710602019

MATEC Web Conf.

2017

DOI: 10.1051/matecconf/201710602019

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Factors of quality reduction of exploitation of pitched roofs with a cold attic in conditions of dense urban development

Marina Dement'eva

Abstract: Abstract. The paper presents the results of a survey of cold attic of a residential building with a pitched roof. The aim of the work was in the conformity assessment of the actual operating conditions of the cold attic regulatory requirements. Measuring data of temperature and air velocity, mathematical processing of results are presented. Method of calculating the area of the ventilation holes was analysed, recommendations to prevent the formation of icings and condensation were made.

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Cited by 4 publications

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Innovative approach to the problem of preventing the formation of icing on the roofs of buildings in the spring and winter

2019

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Only during 2010 – 2019 more than 100 people have suffered from falling of icicles from roofs. In most cases people get slight injuries, but sometimes it reaches lethal outcome. Also damage is sustained by cars, pavements, shops that are in commercial rooms on the first floors of houses, etc. In the conditions of continuous modernization of design of houses, construction companies do not resolve the matter. In this article the problem of formation of frost during the spring and winter period is studied. We have assessed the probabilities of suffering damage from icicles falling from various heights. The innovative device that does not have analogy around the world and eliminates defects of already existing patents is presented.

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Innovative approach to the problem of preventing the formation of icing on the roofs of buildings in the spring and winter

2019

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Scheduling prophylactic maintenance of engineering systems of residential buildings

Afanasyev

Shreiber

2019

J. Phys.: Conf. Ser.

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Analysis of the organization of operation of engineering systems of residential buildings based on a queuing model with interruptions and close-downs

Afanasiev

2020

Construction and Architecture

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In resent years has been increasing interest for application of probabilistic methods, in particular queueing theory for estimation of activities of managing companies of residential buildings. Maintenance of residential buildings is a set of measures that ensure the highest reliability of all elements and systems of a building. The main element of the technical operation of residential buildings is a system of scheduled prophylactic inspections and repairs. However even with its rational organization, there is always a positive probability of failure of building elements, which depends not only on the aging factors of the structure. The goal of the managing company is, on the one hand, to prevent the formation of a too long queue of emergency calls, and on the other, to complete all planned prophylactic maintenance work. As a mathematical model we consider a single-server queue with vacations and close-down periods. The service team can start a scheduled preventive repair only when all request for sudden mailfunctions are satisfied. This period we call vacation. There is a close-down period before vacation. This time period is required for preparation and organization of the prophylactic and inspection work. Based on the methods of the queuing theory, the system’s characteristics that determine the quality of its work, as well as the boundaries of the change of parameters at which the system copes with the work from the standpoint of a particular criterion are defined.

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Factors of quality reduction of exploitation of pitched roofs with a cold attic in conditions of dense urban development

Cited by 4 publications

References 5 publications

Innovative approach to the problem of preventing the formation of icing on the roofs of buildings in the spring and winter

Innovative approach to the problem of preventing the formation of icing on the roofs of buildings in the spring and winter

Scheduling prophylactic maintenance of engineering systems of residential buildings

Analysis of the organization of operation of engineering systems of residential buildings based on a queuing model with interruptions and close-downs

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