Magazine of Civil Engineering, No.4(80), 2018
A.M. Sychova, L.B. Svatovskaya, D.S. Starchukov, V.Y. Soloviova, M.V. Gravit
article deals with the possibility of increasing strength, hardness,
frost resistance, water and corrosion resistance of concrete. The
reduction of its abrasion resistance and water absorption by creating a
layer of nonorganic monolithic high-strength clip on its surface is
also considered. The possibility of synthesis of such clip by
impregnating the concrete surface with a Sol of SiO2 is shown and
A.I. Kirsanov, O.N. Stolyarov
synthetic fibers are increasingly used for reinforcing of cement-based
composites along with metallic and inorganic fibers. In this work, the
mechanical properties of short polypropylene fibers with different
structures were investigated. The main characteristics, including
tensile strength, Young’s modulus, strain at maximum load, and work of
rupture were determined.
definition of rational parameters of the developed compensating device
of a triangular shape by calculation and experimental investigation
methods is considered in the article. The proposed compensating device
with the bent taps use has a more rigid design than the compensating
device in the form of a broken bolt.
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Yu.B. Kalugin, A. Kaklauskas, Yu.N. Kazakov
task of reducing the total duration of the project ("compression",
"crashing") occurs when developing and adjusting schedules. The
activities requiring crashing are determined by the minimum of added
resources at the unit reduction of the schedule. The minimum cut in a
critical network determines such activities. The essence of searching
the minimum cut by merging vertices (edge tightening) of the critical
network is presented.
I.V. Atavin, B.E. Melnikov, A.S. Semenov, N.V. Chernysheva, E.L. Yakovleva
article is devoted to the evaluation of the torsional stiffness of the
beam-pillar nodal connection of thin-walled rack structures. Results of
in-place testing of several girder rack models are described, beam
model and combined one are considered. Computational finite element
(FE) models of these racks are designed to develop a FE analysis by
software complex ANSYS.
V.M. Tusnina, D.A. Emelianov
hinged ventilated facades installing is a perspective technology of
buildings decoration. Suspended facade systems are widely used for
construction and reconstruction of residential, administrative, public
and industrial buildings. Using suspended facade systems for decorating
exterior walls is helping designers to solve the problems of thermal
protection and architectural and artistic expressiveness of buildings
by using modern heat-insulating and decoration materials.
V.I. Kolchunov, S.Yu. Savin
of scientific publications on the assessment of resistance of
structures to progressive collapse, as well as existing and projects of
design codes of different countries, in particular the project of
Design Code "Protection of buildings and structures against progressive
collapse. The design requirements. General conclusions", shows, that
the main evaluating criteria are strength parameters.
M. Garifullin, M.K. Bronzova, M. Heinisuo, K. Mela, S. Pajunen
paper evaluates the effect of initial geometrical imperfections on the
structural behavior of cold-formed rectangular hollow section T joints.
Imperfections are simulated using the conventional approach for
thin-walled structures, applying corresponding buckling modes to the
T.A. Belash, A.D. Yakovlev
We have analyzed data on the mechanism of tsunami waves formation and
destruction caused by thereby, and also have summarized recommendations
on tsunami-resistant construction. For reduction of damage and loss
from strong earthquakes and high tsunami waves, hereon the solution for
tsunami protection of the construction area is proposed in which small
typical residential buildings are located in the upper part of the
motor road trestle.
D.D. Zaborova, K.I. Strelets, J. Bonivento Bruges, M.I. Asylgaraeva, M. de Andrade Romero, C. Steffan
areas integrated into actively developing environment of the modern
cities is a burning issue which is being studied in megalopolises of
Latin America, Africa and Asia. Diverse controversial issues emerge in
the interaction between the city community and inhabitants of the
favela. The article deals with the solution for this issue based on the
example of interaction between Brazilian favela “Sao Remo” and the
University campus of Sao Paulo.
E.A. Statsenko, A.F. Ostrovaia, V.Y. Olshevskiy, M.R. Petrichenko
most economically viable and practicable method of moisture removal
from the air gap with the help of free convective air flows are
presented in the article. An experiment conducted on a laboratory bench
simulating a hinged ventilated facade is described.
V.Y. Lushnikova, A.G. Tamrazyan
Due to aggressive environmental conditions, the adhesion between
reinforcement and concrete deteriorates. This factor has a significant
influence on the safety and efficiency of buildings and structures. The
strength of adhesion between reinforcement and concrete decreases in
the process of corrosion, and therefore requires a longer anchoring
length of the reinforcement.
A.Y. Ivanov, S.A. Chernogorskiy, M.P. Vlasov
seismic design optimization researches reviewing shows that existing
economic effect assessment methods take into account only traditional
seismic retrofit schemes excluding base-isolation system employment.
The purpose of this study is to obtain economic optimization which
allows to compare the economic effect E of base-isolated structure
among with traditional seismic retrofit schemes.
A.V. Denisov, A. Sprince
article provides selection and approbation of the model and the
model-based method for the analytical determination of thermal
expansion and rock fracturing (decompression) and concrete mineral
aggregates according to the data about thermal deformations of minerals
based on information of the mineral composition, the average grain
fineness of minerals and the elasticity modulus of rock.
V.V. Titkov, A.B. Bekbayev, T.M. Munsyzbai, K.B. Shakenov
use of renewable energy converters, including local wind power plants
to provide private households and houses with electricity, is gaining
popularity, especially in countries where there are appropriate state
subsidies. In this paper considered approach to the use of the building
roof in the conversion of the kinetic energy of the incoming wind into
electrical energy by a closed wind power plant (WPP).
T.A. Hezhev, A.V. Zhurtov, A.S. Tsipinov, S.V. Klyuev
results of studies on the development of vermiculite concrete
composites with application of volcanic ash and pumice are presented.
The composition of cement fibre vermiculite concrete fire resistant
composites is offered, which allows reducing the consumption of
Portland cement and simultaneously increasing their flame retardant
V.K. Sogomonyan, G.S. Chibukhchyan*, O.S. Chibukhchyan
article deals with the issues of increasing the fatigue strength of
critical parts and components of construction machines and equipment,
which are more often subjected to fatigue failure under the influence
of variable complex loading. A quantitative estimate of the size of the
fatigue fracture zones in the parts and joints installed in the
building structures and power circuits of this construction equipment
has been made.