Magazine of Civil Engineering,
Tenders and public purchases in building sectorFrom 25th till 26th May, Association of Professional Project Managers in Building Sector (APUISP) conducted the 3rd Practical conference "Project Management in Building Sector". This year the conference was in new format with crush-tests of real investment and building projects.
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Innovation technologies in France and RussiaJune, 8th within the framework of Year France-Russia conference "Innovation technologies in civil engineering and restoration" took place. It was organized by French Consulate General in Saint-Petersburg and Saint-Petersburg State Polytechnical University (SPbSPU). In welcoming speech Consul General mentioned that close cultural cooperation is traditionally strong between Russia and France, but relationships in the field of innovation technologies are also very important to develop.
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S.V. Nikonorov, O.A. Tarasova
Technology of early floor formwork removal with using post-and-beam
formwork is considered. After seasoning of floor concrete the formwork
removal is made and temporary posts are installed for transfer of
loading from floor without framework to underlying floor.
K.A. Chernova, N.V. Paranicheva
Building technology on basis of textile concrete is described. Textile
concrete is an artificial stone in permanent formwork made from textile
material and astringent. Formwork making process and building erection
are considered. Mineral and bast fiber are used for formwork making,
and comparative analysis of different fibers is given.
suitability of using a natural fiber to reinforce high strength
structural purpose is investigated. The compression and tension
high strength concrete reinforced with glass fibers are compared with
behavior of high strength concrete without fiber reinforcement and with
strength concrete reinforced with either steel or polypropylene fibers.
Flexural behavior is investigated also.
On basis of diagnostic matrix from previous article the
technical state estimation for sublevel system "floor" is conducted.
The estimation bases on probability parameters for four subsystems of
floor: main beams, secondary beams, plate sections and columns.
More perfect model for oscillations of elastic shells with stepped
variable thickness is proposed taking into account geometrical
nonlinearity, shear and torsional rigidity of ribs. The techniques for
investigation of nonlinear free oscillations of shells considered as
systems with n degrees of freedom is proposed. Computer simulation for
oscillation process in shells was done and major characteristics of
oscillation process were received.
S.O. Ospanov, A.A. Sakharieva
In the article it is proved that Sen-Venan principle is true not only
for elastic bodies but also for more compound bodies like soils.
Principle validity is proved by the example of calculation structures
on the elastic foundation.
I.I. Bogolepov, Chen Syatin
Two types of soundproof booths for private negotiations are proposed:
of squared and sphere shape. For soundproofing the magnetic suspension
method is used. The calculation of required sound insulation was done.
Propagation channels both of air sound and structural sound are taken
Calculation method for clarification of required temperature for
heating in buildings with large glass cover surface is proposed. The
scheme of entry of solar radiation heat through translucent structures
is considered. Intensity of total incident solar radiation is
In the article main ways for growth of organizational and technological
reliability in building processes are analysed.
The problem of efficiency estimation using simultaniously several
methods is considered. The calculation of cost effectiveness is given.