significant energy savings, the independence of construction from weather conditions
and the shortening of its duration.
In recent years frame multi-storey civil buildings are widely spread in the
construction industry, among which, first of all, it should be noted modern precast-
cast-in-place structural systems such as SORET, KAZAN-XXI century, ARKOS,
KUB-2.5 and their modifications [1].
At the same time, the long-term experience of the European countries
development shows that an intensive increase in the volume of construction is
impossible without panel housing construction. Its share in these countries ranges from
17% to 35% of the total housing stock. In Sweden, Denmark, and Finland, low-rise
panel residential complexes are popular, in which the most advanced panel house-
building technologies are used. In European countries, precast concrete is also used in
the construction of private houses (including elite ones), multi-storey residential
complexes, and other civil buildings. For example, during the construction of the
Olympic Village in London, the external walls of prefabricated panels with insulating
layer and the use of architectural concrete for exterior surfaces were used. In France,
much of the multi-unit buildings are large-panel. And in Holland, the residential
complex "Montevideo" in Rotterdam with a height of 153 meters is the highest in the
country. Thus, it can be argued that in European countries industrial panel housing is
widespread, including quite active in residential construction [2]. A similar picture is
observed in Russia and Belarus, Kazakhstan.
Along with a significant reduction in construction time by 1.5 ‒ 2 times, reduction
of labor costs on the construction site by 30 – 40%, and as a result of a reduction in the
cost of m
2
of living space compared to buildings with brick walls by 12 – 15%,
significant shortcomings of the industrial series residential houses being built in
Ukraine are known: limitations in planning solutions; the impossibility of increasing
the height of the floor more than 2.8 m; lack of flexible design "for the customer"; the
need for finishing the surface of products at the construction site after installation and
additional heating; poor quality joints (blowing, moisture penetration), low thermal
properties of the panels.
These shortcomings imply the need to modernize large-panel housing
construction in order to further develop it, primarily by improving the thermal
properties of the enclosure structures. The possibility for residential buildings of the
industrial series to reduce more than twice the energy consumption for heating, and to
achieve a level of energy consumption not exceeding 30 kW/year per m
2
of living space
while increasing the cost by only 8%, significantly increases its competitiveness in the
housing market.
Particular attention in the design of precast and precast-cast-in-place structural
systems should be paid to the joints of the bearing elements, ensuring their combined
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