scholarly journals Management of the “building-base system” action, using a life cycle model

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Justyna Sobczak-Piąstka ◽  
Oksana Kichaeva ◽  
Pavlo Firsov ◽  
Sergey Zolotov ◽  
Yuriy Famulyak

AbstractThis research aims to highlight the problem of creating various models that reflect the life cycle of the “building-base” system, and link the reliability of this system with its technical condition. Based on the proposed model of the life cycle “reconstructed building-base”, it is possible to regulate the condition of the building towards its restoration, changing the category of technical condition to higher and obtain new, adequate to the current state, reliability indicators. During the operation of this model, it is possible to control the system management on the basis of the obtained quantitative values of reliability. The result of the reliability calculation is the determination of such a technical solution of strengthening the “building-base” system, which will provide a given level of reliability. The research provides an example of the calculation of an operable monumental building before and after its restoration.

The reasons for the negative dynamics of the current state of the country's housing stock and, in particular, the growth of hazardous and dilapidated housing are analyzed. The analysis established that the main cause of the unsatisfactory technical condition of housing stock are huge difference in strength of structures, components and systems of residential buildings, along with the extremely low level of maintainability, poor maintenance, not compliant to regulatory requirements, insufficient volumes of capital repairs of residential buildings, both in the past and currently. The problems of ensuring the reliability and operational and technical suitability of residential buildings at all stages of the life cycle are considered. Conceptual approaches to creating a system of organizational and technological preparation of measures to ensure the reliability of residential buildings throughout the life cycle- from design and construction to disposal (demolition). Methods of economically justified reservation of reliability of structures, elements and systems of residential buildings at the design and construction stages are presented. The methodological principles of development in the design and estimate documentation of instructions for the organization of technical operation, as well as forms and methods of organizational and technological preparation of operation and capital repairs are described. The necessity to create a unified system of organizational and technological preparation of complexes of measures covering all stages of the life cycle of residential buildings, which will improve the state of the housing stock of our country, is shown.


Author(s):  
Alexander Terentyev ◽  
Yevhenii Gorbatyuk ◽  
Olena Dolya ◽  
Olha Serpinska ◽  
Mariia Liashchenko

The methodological bases of construction of information system of diagnostics of technical condition of constructions of buildings and constructions and substantiation of efficiency of technologies of instrumental definition of parameters of buildings, constructions at all stages of their life cycle which are considered from a position of strategic information management are offered; carried out, from the standpoint of a systematic approach, the formalization of the processes of wear of building structures, which allows the creation of an effective and reliable analytical apparatus for monitoring the technical condition and diagnosis of future conditions in the process of their reliable and safe operation; built, using the apparatus of fuzzy sets, models and methods of monitoring a certain technical condition of buildings; The information technology of the decision support system, which is based on powerful intellectualizing analytical tools that allow experts to make more plausible assessments and management decisions, has been further developed. Based on the results of studying scientific sources, conclusions were made about the absence or need to deepen the solutions to the following problems: establishing general principles for the formation of a system for diagnosing the technical condition of buildings at all stages of their life cycle; lack of methodology to substantiate the effectiveness of technologies and tools for instrumental determination of parameters of buildings, structures and building areas at all stages of the life cycle; adaptation of methods for determining organizational and technological indicators to calculate the effectiveness of measurement systems and technology of their application; determining the impact of organizational and technical indicators on the efficiency of measurement systems and technology of their application; determination of the duration and periodicity of instrumental inspections as part of the operating costs of measuring systems; establishment of necessary volumes of instrumental observations at operation of buildings and constructions of substantiation of expenses of time for performance of measuring works at all stages of a life cycle of construction objects; lack of a single methodology for creating an automated system for diagnosing the technical condition of buildings; lack of integrated models and methods of modeling diagnostic processes that would ensure the effective functioning of information technology diagnostics of technical condition of buildings and high accuracy of expert decisions on their condition and forecasting the main technical characteristics of their operation under external and internal environments; the lack of a single information database that would make it possible to compare the results of surveys, to observe the dynamics of aging of buildings, to systematize conclusions about their condition.


2016 ◽  
Vol 23 (4) ◽  
pp. 517-525 ◽  
Author(s):  
Marián Flimel ◽  
Darina Dupláková

This article focuses on the solution of optimal workers’ load in transmitted vibration to hands. Ergonomic rationalization comes from the application of organizational methods and the possibilities of an innovative technical solution. Attention is paid to the method of job rotation declared in the system solution within organizational methods. The sequence of the application is introduced by algorithm within strategic company planning and by a sequence chain within the operative solution. Determination of the optimal exposition period through transmitted vibration from the tools and machines to the hands of the workers is possible according to a set representative table or graphic instruments. A realized example of manually controlled machine modification – a vibration board used in the building industry is described within an experiment. The admissible exposition value before and after modification is calculated by measuring the acceleration of the vibration of “a”. The possibility of five times longer expansion of the working time period during the work shift comes after vibro-isolation modifications of the mentioned machine. The meaning of rationalization steps consists of the participation of employees on its solution within the operation conditions.


2021 ◽  
Vol 1 ◽  
pp. 57-68
Author(s):  
Bogusław Michalec ◽  

The aim of the study was to determine the capacity of a selected section of the Sanna river, designated below the lower site of the weir in Zaklików. The capacity calculations included the conditions of flood water discharge, i.e. the reliable flow and the control flow, determined in accordance with the Regulation of the Minister of the Environment on technical conditions that should be ensured for the hydrotechnical structures and their locations. The paper presents the consequences of changes in the regulations regarding the determination of building type, for which reliable flow and control discharges are determined. These modifications in the regulations have an impact on changes in the determination of the probability value for water discharges related to the analysed weir. The calculation of the capacity of the tested section also took into account its technical condition, specifying the variant of calculations for the lack of maintenance works, i.e. for the current state and for the state after maintenance works, consisting in mowing vegetation on slopes and shaping the surface of river bottom, removing pits and shallows. The results of the calculations of capacity of the measured cross-sections showed that the performance of maintenance works will convey the flow of a Q3% reliable flow in the Sanna river, while the Q1% control flow will not fit into the riverbed and will cause inundation of the adjacent areas.


1964 ◽  
Vol 12 (01) ◽  
pp. 119-125 ◽  
Author(s):  
Y Shamash ◽  
A Rimon

SummaryA new method for the assay of plasmin inhibitors in human plasma is described. The method consists of determination of the caseinolytic activity of a standard plasmin solution before and after incubation with the inhibitor, with lysine added to the mixture as a stabilizer of plasmin. Using this method, it was found that plasma contains enough inhibitors to inactivate 30 caseinolytic units of plasmin, or 10 times the normal amount of plasminogen in human plasma.


2020 ◽  
pp. 43-50
Author(s):  
A.S. Komshin ◽  
K.G. Potapov ◽  
V.I. Pronyakin ◽  
A.B. Syritskii

The paper presents an alternative approach to metrological support and assessment of the technical condition of rolling bearings in operation. The analysis of existing approaches, including methods of vibration diagnostics, envelope analysis, wavelet analysis, etc. Considers the possibility of applying a phase-chronometric method for support on the basis of neurodiagnostics bearing life cycle on the basis of the unified format of measurement information. The possibility of diagnosing a rolling bearing when analyzing measurement information from the shaft and separator was evaluated.


2018 ◽  
pp. 5-26 ◽  
Author(s):  
Stanislav Darula

Three elements mainly wind, water and sun seemed to determine in ancient ages the basic phenomena of life on Earth. Architectural history documented the importance of sun influence on urban and building construction already in layouts of Mesopotamian and Greek houses. Not only sun radiation but especially daylight played a significant role in the creation of indoor environment. Later, in the 20th century, a search of interaction between human life in buildings and natural conditions were studied considering well­being and energy conscious design recently using computer tools in complex research and more detail interdisciplinary solutions. At the same time the restricted daytime availability of natural light was supplemented by more efficient and continually cheaper artificial lighting of interiors. There are two main approaches to standardize the design and evaluation of indoor visual environment. The first is based on the determination of the minimum requirements respecting human health and visibility needs in all activities while the second emphasizes the behaviour and comfort of occupants in buildings considering year­around natural changes of physical quantities like light, temperature, noise and energy consumption. The new current standardization basis for daylight evaluation and window design criteria stimulate the study of methodology principles that historically were based on the overcast type of sky luminance pattern avoiding yearly availability of sky illuminance levels. New trends to base the daylight standardization on yearly or long­term availability of daylight are using the averages or median sky illuminance levels to characterise local climatological conditions. This paper offers the review and discussion about the principles of the natural light standardization with a short introduction to the history and current state, with a trial to focus on the possible development of lighting engineering and its standards in future.


1962 ◽  
Vol 41 (1) ◽  
pp. 123-128 ◽  
Author(s):  
Pentti A. Järvinen ◽  
Sykkö Pesonen ◽  
Pirkko Väänänen

ABSTRACT The fractional determination of 17-ketosteroids in the daily urine was performed in nine cases of hyperemesis gravidarum and in four control cases, in the first trimester of pregnancy both before and after corticotrophin administration. The excretion of total 17-KS is similar in the two groups. Only in the hyperemesis group does the excretion of total 17-KS increase significantly after corticotrophin administration. The fractional determination reveals no difference between the two groups of patients with regard to the values of the fractions U (unidentified 17-KS), A (androsterone) and Rest (11-oxygenated 17-KS). The excretion of dehydroepiandrosterone is significantly higher in the hyperemesis group than in the control group. The excretion of androstanolone seems to be lower in the hyperemesis group than in the control group, but the difference is not statistically significant. The differences in the correlation between dehydroepiandrosterone and androstanolone in the two groups is significant. The high excretion of dehydroepiandrosterone and low excretion of androstanolone in cases of hyperemesis gravidarum is a sign of adrenal dysfunction.


1968 ◽  
Vol 57 (1) ◽  
pp. 23-32 ◽  
Author(s):  
Hironori Nakajima ◽  
Mitsunori Murala ◽  
Masumitsu Nakata ◽  
Takeshi Naruse ◽  
Seiji Kubo

ABSTRACT The in vitro resin uptake of 3H-prednisolone was used for the determination of blood cortisol after addition of radioactive prednisolone followed by Amberlite CG 400 Type 1 to the test serum, and incubation of the mixture. The radioactivity of the supernatant was compared before and after the addition of the resin. The principle of this method is similar to that of the 131I-triiodothyronine resin uptake for the thyroid function test. The tests for the specificity, reproducibility and sensitivity gave satisfactory results. The mean basal value ± SD of the 3H-prednisolone resin uptake was 35.3 ± 9.2% in normal subjects, and 27.1 ± 4.8% in pregnant women. This method was valid in various adrenal function tests, i. e. the adrenal circadian rhythm, corticotrophin (ACTH) test, dexamethasone suppression test and the adrenal response to lysine-8-vasopressin. It proved to be a sensitive indicator of the adrenal function. These results suggest that this method should be useful for a routine adrenal function test.


2020 ◽  
pp. 22-38
Author(s):  
Natalia Guseva ◽  
Vitaliy Berdutin

At present, the problem of establishing disability is a point at issue in Russia. Despite the fact that medical criteria for disability are being developed very actively, high-quality methods for assessing social hallmarks are still lacking. Since disability is a phenomenon inherent in any society, each state forms a social and economic policy for people with disabilities in accordance with its level of development, priorities and opportunities. We have proposed a three-stage model, which includes a system for the consistent solution of the main tasks aimed at studying the causes and consequences of the problems encountered today in the social protection of citizens with health problems. The article shows why the existing approaches to the determination of disability and rehabilitation programs do not correspond to the current state of Russian society and why a decrease in the rate of persons recognized as disabled for the first time does not indicate an improvement in the health of the population. The authors proposed a number of measures with a view to correcting the situation according to the results of the study.


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