Magazine of Civil Engineering, No.8(68), 2016
M.P. Sainov, O.V. Anisimov
Methodology and the results of numerical modeling of stress-strain
state (SSS) of an earth-rockfill dam are considered, where after a
failure of the clay core there was created a new seepage-control
element presented by a clay-cement concrete wall. Calculations were
conducted on the example of the dam section of Kureyka HPP, where
emergency situation occurred in 1992.
V.A. Kostenko, N.M. Gafiyatullina, A.A.
Semchuk, M.I. Kukolev
R.A. Nazirov, S.V. Verkhovets, I.S. Inzhutov, R.V. Bazhenov, I.V. Tarasov
making calculations for non-steady heat-and-moisture exchange processes
in building envelope constructions it is necessary to consider moisture
sorption isotherms of the materials in use. Fifteen aqueous vapor
sorption models have been analyzed in order to select the simplest one
that represents conventional equilibrium wood moisture values in the
most accurate way.
E.A. Bondarenko, Kh.V. Il`ina, M.Ju. Andrianova, A.N. Chusov
of main inorganic ions were determined in waters of city streams
affected by domestic and industrial wastewaters – the Okhta and
the Murinsky creek in St. Petersburg. It was shown that pollution of
streams led to increasing of molar fraction for sodium ion and
chlorides, decreasing of molar fraction of magnesium, calcium, sulfates
A.N. Ponomarev, A.S. Rassokhin
interest in wood-based materials and structures is increasing every
year, and as a result, attempts are constantly being made to modify it,
in order to increase mechanical and operational characteristics. In
this case the complicating circumstances are the contradiction between
the hydrophilic nature of wood and water repellence of the majority of
the thermosets that can significantly affect the properties of wooden
parts and structures..
A. Borodinecs, J. Zemitis, J. Sorokins, D.V. Baranova, D.O. Sovetnikov
Residential buildings in Latvia are one of the essential heat consumers
during the heating season. The majority of Latvian as well as European
residential buildings were constructed within the period from 1965 to
1990. Introduction presents brief overview of current situation in
Latvian and EU countries. This chapter provides overview of real energy
consumption and definition of buildings technical conditions.
I.Yu. Bilous, V.I. Deshko, I.O. Sukhodub
energy resources saving problem is extremely important, especially for
heating in buildings. The aim of the paper is to simulate indoor air
temperature depending on heating rate, solar heat gains, infiltration
rate and outdoor air temperature. In order to get the desired result
dynamic model of the room was created in EnergyPlus program, which is a
widely used building energy simulation program.
L.O. Larsen, V.V. Naruts
the beginning of XXI century in civil engineering and buildings of
transport infrastructure, such as tunnels, elements of bridges,
viaducts and roads, it is more expedient to use conventionally vibrated
concretes which have almost universally replaced prefabricated
constructions. However, in objects with high congested reinforcement or
in cases where vibration is impossible it is more preferable to apply
self-compacting concrete (SSC) mixtures. SCC possesses the ability to
take form shape without any mechanical aid.
E.A. Statcenko, A.F. Ostrovaia, T.A. Musorina, M.I. Kukolev, M.R. Petritchenko
efficiency building envelopes (walls, floors, facades) should meet the
requirements of regulatory documents. The main attention is paid to structural
and technological activities aimed at increasing the thermal resistance of
protections. Estimates of the thermal stability of the wall are required for realization
of high thermal resistance of the wall structure. The object of study is a
simple model of the building envelope.