ANALYSIS OF THE ASSEMBLY DURATION OF A PRECAST-MONOLITHIC FRAME FOR A LOW-RISE BUILDING
DOI:
https://doi.org/10.31650/2786-6696-2026-15-117-128Keywords:
precast-monolithic frame, organizational-technological modelling, labour costsAbstract
The article is devoted to the analysis of precast-monolithic construction in Ukraine, which combines the advantages of both precast and cast-in-place frame systems while minimizing their drawbacks. For this reason, precast-monolithic solutions ensure the reliability and cost-efficiency required for contemporary and especially post-war reconstruction. The limited practical experience in constructing precast-monolithic buildings highlights the need for real-world testing of structural and organizational-technological solutions.
The aim of the study is to perform multivariate organizational-technological modelling and compare its results with the actual construction process of an experimental low-rise precast-monolithic building.
The research methodology includes analysis of scientific sources, construction organizational-technological modelling, examination of labour- and machine-hour regulatory standards, as well as on-site observation and time-tracking of construction processes during the erection of the experimental building.
The study produced the following results. It is recommended that organizational-technological modelling of precast-monolithic structures be based on current 2023 regulatory standards, with the option of applying multivariate modelling using regulatory frameworks from the past 40 years when necessary.
The experimental construction of a cottage with dimensions 14×10.5 m (socket-type foundations, 0.3×0.3 m columns, hollow-core slab floors) revealed production challenges during frame erection and enabled a comparison between actual and regulatory values of construction duration and labour intensity. The duration of erecting this precast-monolithic frame amounted to 9, 12, and 24 working days under optimistic, realistic, and pessimistic scenarios, respectively.
Adjustment coefficients to normative values were calculated to support scenario-based planning for the erection of precast-monolithic frames. To account for possible force-majeure conditions, time buffers of 1–4 weeks should be provided.
The results of the study may be useful for multivariate organizational-technological modelling of precast-monolithic buildings of various types and purposes.
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