Magazine of Civil Engineering, No.5(73), 2017


A.V. Alekseytsev, N.S. Kurchenko
Deformations of steel roof trusses under shock emergency action

The problems of experimental and theoretical research on the stressed and deformed state of steel structures under emergency actions are particularly relevant. ̉his paper proposes experimental and theoretical research methodology, which is used on the basis of an example of research on a full-length truss as part of the frame for an industrial buildings workshop.
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R.R. Bogdanov, R.A. Ibragimov
Process of hydration and structure formation of the modified self-compacting concrete

The article reviews the research results of influence of a complex modifying agent on rheological properties of cement-water paste and cement stone strength. The article describes the processes of hydration and structure formation of cement stone, the special aspects of the phase constitution of Portland cement hydration products in the process of modifying by complex admixture.
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V.M. Tusnina
Semi-rigid steel beam-to-column connections

Steel frameworks are widely used construction of multistory buildings for different purposes. In the practical framework calculations, the girder-column joint connections are taken as either absolutely rigid or hinged ones. The analysis of the actual behaviour of the frame joint connections shows that they normally occupy an intermediate position in the joints classification into "rigid" and "hinged" ones, i.e. they have certain pliability.
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M.R. Petritchenko, S.A. Subbotina, F.F. Khairutdinova, E.V. Reich, D.V. Nemova, V.Ya. Olshevskiy,
V.V. Sergeev
Effect of rustication joints on air mode in ventilated facade 

Ventilated facade is a contemporary facade system that is popular due to its energy efficiency. There are different configurations of the façade systems, among other things, various spacing between rustication joints.  
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L.N. Danilevski, S.L. Danilevsky
The algorithm and accuracy of definition of heattechnical indicators of buildings

The object of the given research is the thermotechnical characteristics of buildings. The problem of thermotechnical indicators measurement arises at the acceptance of the buildings in use and also while performing work on energy classification of buildings in use.
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O.D. Samarin
The probabilistic-statistical modeling of the external climate in the cooling period

Currently, the successful development of construction industry depends on the improved energy performance of buildings, structures and facilities, as well on the quality estimation of the outdoor climate. The problem of feasibly more accurate determination of energy consumption by climatic systems in buildings is a very high-priority task now because of decrease of energy and fuel sources and because of actualization of building standards in many countries.
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A.V. Denisov
The impact of superplasticizers on the radiation changes in Portland cement stone and concretes

The authors have estimated the effect of advanced superplasticizers of types Muraplast, Reamin, Weiss SM, Polyplast SP-1 and Melflux on radiation changes in Portland cement stone and concretes of radiation protection, based on experimental data from available literature, about the effect of such superplasticizers on thermal changes of Portland cement stone and the known analogy between thermal and radiation changes in Portland cement stone exposed to neutrons.
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M. Al Ali, V. Bajzecerova, V. Kvocak
Design methods of timber-concrete composite ceiling structure

Timber-concrete composite structural members are increasingly used in the case of restoration of wooden ceilings. In the other hand, their use also increases in the case of new buildings. Design methods of the composite structures have been evolving since their first use.
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M.P. Sainov, V.V. Lubyanov
Stress-strain state of seepage-control walls in foundations of embankment dams

Results are considered of systematic study of stress-strain state (SSS) of a seepage-control wall arranged in the embankment dam foundation. The following factors affecting the wall SSS were studied: the wall depth, deformation modulus of the wall material, the pattern of the wall resting. Studies were conducted with the aid of numerical modeling.
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