Magazine of Civil Engineering, No.5(65), 2016


 STRUCTURES

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Behaviour of load-carrying members of
velodromes’ long-span steel roof

J. Gusevs, D. Serdjuks, G.I. Artebjakina, E.A. Afanasjeva, V. Goremikins
Behaviour of load-carrying members of velodromes’ long-span steel roof

Long-span roofs have been of an increased interest within the last sixty years. An archtype steel roof of velodrome with the maximum span, height, and length equal to 109.50, 23.07, and 126.00 m respectively, is considered as the object of the current investigation.
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Buildings with suspended structures in seismic areas

T.A. Belash, P.L. Rybakov
Buildings with suspended structures in seismic areas

Using suspended structures in construction is one of the methods to improve the earthquake buildings resistance. This subject became very popular in the 60–70s of the 20th century. However, at that time there were no available methods to provide full studies devoted to the buildings of this type. Soon, however, the opportunity appeared due to the development of computer engineering. This caused further analysis and disclosure of the full potential of suspension systems.
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CALCULATIONS
Improved numerical methods in reliability analysis of
suspension roof joints

I.N. Priadko, V.P. Mushchanov, H. Bartolo, N.I. Vatin, I.N. Rudnieva
Improved numerical methods in reliability analysis of suspension roof joints

Modern structures require more complex designs. There is an increased need for accurate approaches to assessing uncertainties in loads, geometry, material properties, and operational environments. However, information is scarce on the reliability of suspension roofs together with their joints. There is an urgent need for estimating stress-strain state and reliability of welded joints, so recommendations can be given based on the obtained data.
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Calculation of optimized methods of the river underwater
pipeline backfill with the use of APMWinMachine 9.7

K.V. Kozhaeva
Calculation of optimized methods of the river underwater pipeline backfill with the use of APMWinMachine 9.7

Nowadays, the standard techniques of backing the ballasted pipeline laid in a bottom trench are used: sequential deposition of soil by suction dredges along the slurry pipeline, soil discharge by self-dumping barges, soil unloading from a barge by the grapple, soil pumping from barges. The disadvantage of these methods is that backfill is done in consecutive stages, and soil, falling into water increases water specific weight to the pulp specific weight.
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MATERIALS
Structural sawn timber: resource enhancement

V.E. Byzov, V.I. Melekhov
Structural sawn timber: resource enhancement

The strength properties of wood have a great variability within the same species and the same growing region. In this regard, defect parameters do not fully characterize the strength and deformability of structural timber. Deterioration of timber quality requires a more reasonable use of resources and accurate assessment of the strength properties of output timber.
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