Open AccessIMPROVING THE ORGANIZATIONAL AND TECHNOLOGICAL RELIABILITY OF CONSTRUCTION SCHEDULES
Author(s) -
O. O. Martysh,
O. P. Martysh,
F. I. Pavlov,
N. S. Rynkevych,
Iryna Mykhailova
Publication year - 2019
Publication title -
mosti ta tunelì: teorìâ, doslìdžennâ, praktika
Language(s) - English
Resource type - Journals
eISSN - 2413-6212
pISSN - 2227-1252
DOI - 10.15802/bttrp2017/167763
Subject(s) - schedule , reliability (semiconductor) , computer science , duration (music) , work (physics) , reliability engineering , range (aeronautics) , interval (graph theory) , operations research , plan (archaeology) , control (management) , industrial engineering , engineering , mathematics , mechanical engineering , art , power (physics) , physics , literature , archaeology , quantum mechanics , combinatorics , artificial intelligence , history , aerospace engineering , operating system
Purpose. Determination of the rational level of organizational and technological reliability of schedule time parameters. Methodology. The factors affecting the performance of construction and installation works as a part of the construction schedule are considered. It is used the approach where the time for completing a certain amount of work is derivate from the performer’s performance and the intensity of work. The duration of the work is not a determinate value, but a range (interval) of possible values that can be described using the normal distribution, the β-distribution, and the α-distribution. Findings. It is found out the dependence between the output of performers and the reliability of work in the planning period. It is determined the rational level of organizational and technological reliability of the construction schedule at the stage of its time parameters modeling. Originality. It is improved the method for calculating the construction spread, taking into account the probability of a period of execution of works, which permits to quantify the dynamics of uncertainty growth in the period of execution of works as a part of the construction spread. A new approach to time parameters planning allows controlling changes in reliability during the implementation of the plan. Obtained results form the basis for further calculation of failure rates and rational control mode. Practical value. The calculation of the time parameters of the construction spread, taking into account the destabilizing influence of random factors of the external and internal environment, makes it possible to bring the projected construction schedules closer to real-life conditions that occur during the implementation.