Magazine of Civil Engineering,
Energy saving solutions for civil engineering17.09.10 within the bounds of exhibition "BalticBuild" the scientific and practical conference "Energy saving solutions in civil engineering and reconstruction of buildings" took place. The organisers of the conference were Saint-Petersburg State Polytechnical University (SPbSTU), Interregional Window Institute, Baltic Building Business Society.
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Effective building wallingOctober, 6th, in Saint-Petersburg State Polytechnical University (SPbSTU) the seminar "Plasters for exterior finish of aerocrete walls" took place. The organisers were SPbSTU, National Association of autoclaved aerocrete productors, "Н+Н" LC, "Aeroc SPb" LC. General aim of this arrangement was creation of requirements specification for plasters for building walling made of autoclaved aerocrete.
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D.V. Krajnov, I.S.
Safin, A.S. Ljubimcev
State-of-the-art building wallings may include various elements with
heat conductivity more than heat conductivity of main layers. the
article is devoted to the calculation heat loss through such
heat-conducting inclusions. The calculation consecution of additional
heat-flux density caused by heat-conducting inclusion is given. On the
base of these calculations the method of heat resistance calculation
for all building front is proposed.
In current article (on the base of mathematic models and algorithm of
their research proposed in previous papers) the data of computing
experiment for smooth and ribbed polymeric shells, in particular, made
of acrylic resin, are given. Shell flatness condition was
discussed. Besides, received results were compared with results
of full-scale experiment made by other authors.
R.A. Abdikarimov, V.M.
The authors develop mathematic models and effective computing
algorithms for solving of nonlinear dynamic problems about oscillations
and stability of orthotropic viscoelastic systems with variable
rigidity. Geometric nonlinearity and possible development of creep
strain (viscous elasticity) are taken into account jointly.
This is a continuation of articles series about methods of technical
diagnostics. Diagnostic matrix from first article is used in series
for such building elements as main beams, secondary beams,
columns and for structural system "floor" as a whole. Methods and
consecution of solution formation are given in overview.
Basic problems and methods of the
evaluation of fire resistance for reinforced concrete constructions are
presented. The existing procedures of solving of
the static aspect of fire resistance task are analysed. A
trends in development of the
solution of fire resistance problems for reinforced concrete
is given. A program for solving the thermo-technical aspect of the task
fire resistance of reinforced concrete constructions is
In the article climatic systems are considered as systems of
personal security. Roles of State, building proprietors, inhabitants in
the formation of climate favorable for health are analysed.
Regulated heat and air conditioning systems are considered
particularly, because they can give personal security in temperature.
I.I. Bogolepov, N.A.
Noise map of city is an instrument for noise control. There are noise
levels on all main roads, in people habitation and recreation areas, on
the territory of industrial and other enterprises, and around isolated
noisy objects. At present time in Russia and abroad the main problem of
noise maps is as before the indefinite precision and reliability of
indicated value of noise levels. With using of variance analysis method
of probability theory and mathematical statistics the authors propose a
method which helps in solving this problem.