Magazine of Civil Engineering,
Walling of buildings and erections
Thermophysics of wallingDecember, 9th, in exhibition centre "Lenexpo" the 3rd All-Russian scientific and technical conference "Building thermophysics and energy effective design of walling of buildings" took place. The conference was held within the framework of International congress «Energy efficience in XXI century. Engineering methods of reduction of energy consumption in the buildings».
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The theme of walling on the Week of scienceThe conference "Building thermophysics and energy effective design of walling of buildings" included the second day which took place in Saint-Petersburg State Polytechnical University (SPbSPU). This day was in the same time one from the sessions of XXXIX international scientific and practical conference "Week of science at SPbSPU". This session was named "Energy effective walling".
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A.D. Krivoshein, S.V. Fedorov
Walling of modern buildings are characterized by high thermotechnical
heterogeneity. It causes difficulties in the calculation of their
thermal resistance. The universal method for estimation of
heat-protection properties is the calculation of thermal fields with
using of appropriate software. In the article complicated elements of
this calculation such as the choice of rated operating
conditions, level of detal of its decomposition, calculation results
handling, features of calculation of particular nodes temperature
regime are considered.
O.D. Samarin, N.N. Zaycev
In the paper the nature
of relation of energy consumption of residential buildings of mass
from orientation of their glazed facades on the parties of horizon is
parsed. The computed results of power inputs for the heating
season on the indicated technique for two reference buildings at their
different orientation with allowance for and disregarding of energy
are shown. An estimation of influencing of orientation of glazed
the term of payback of a complex of energy saving measures, used in
is given. The guidelines on expedient dimensional orientation of the
buildings from the point of view of heat saving in the cold season of
of air permeability of provided ventilated air gap in ETICS on moisture
conditions of the wall structure has been considered in this work. The
method of calculation of such an influence is based upon the
evaluation of non-stationary humidity conditions of ETICS and humidity
ETICS with the
ventilated air gap. The
results of the comparative evaluation show that humidity of render
case of ETICS provided with ventilated air gap reduces significantly in
with traditional ETICS.
A. S. Gorshkov, D. Y. Popov, A. V. Glumov
The authors analyse the
wall construction containing ventilated facade with
only one heat insulating filling layer of
AAC-blocks. This bond provides
the required heat insulating level
without additional external insulation layer. The suggested
requires the main backing up cantilevers of the venlilatd facade
be anchored in solid
cast flooring plaques.
The research presents the
engeneering scheme of such wall construction.
Babkov, D.V. Kuznetsov, E.V. Morozova, A.M. Gaysin, O.A. Rezvov, N.S.
basic mechanisms and factors that have destructive effect on the state
autoclaved aerocrete in the exterior walls of operated buildings are
These mechanisms are wetting the wall, the effect of moisture during
carbonation hydrosilicate structure-phase of material. The
protection exterior walls with using hydrophobic multilayered vapor
stucco are estimated.
D.E. Kolomiyczev, A.O. Rodicheva, V.A.
In the current article results of the fire
of inserted floor based on sheet steel profiles were described,
analysis and comparison of
results with other types of slabs were made. The test have shown that
the fire resistance of fragment of this
inserted floor is 47minutes, so the floor can be used in buildings with
degree III of fire resistance
(up to 5 floors with total area not more than 2000m2).
This paper is devoted to
computer-aided designing of steel frameworks from thin-walled
profiles. The main attention has
been paid to the structural analysis and determination of the internal
in structural members from thin-walled cold-formed profiles taken into
restricted torsion deformations. Some scientific issues under the
behavior of the profiles, as
well as post-buckling behavior of these elements after the local
the compressed cross-sectional parts has been presented.
R.A. Abdikarimov, V.M. Zhgoutov
Thin-walled plates and shells are widely used in the modern
construction as elements of both walling and bearing structures,
intended for significant power loads. In the article the behavior of
asymmetric plates and shells of variable thickness is considered taking
into account jointly geometric nonlinearity and viscoelastic material