V.G. Artyukh, G.N. Tonkacheev
Practice of designing and erecting wide-span monolithic multihollow plates of overlappings
«АК Engineering»
Abstract. Experience of designing and erectings of monolithicplates of ceilings on one of the objects in Kiev is considered in this article. Problems of making the samples of plates for experiments and problems of their test on the action of the calculation loading are stated. The economic effect from introduction is resulted.
Key words: civil building, ferro-concrete monolithic framework, ceiling, hollow plate, experimental researches, recommendations of designing.
A.Ya. Barashykov
Design procedure of reinforced concrete designs on deformation model according to the project of new norms of Ukraine
Kyiv State University of Construction and Architecturе Construction
Abstract. The design procedure of reinforced concrete elements of designs according to substantive provisions of the deformation model offered for the project of building norms of Ukraine is considered. The scheme of calculation of a ferro-concrete bent element with reinforcement is presented.
Key words: reinforced concrete structures, designing, calculation, deformations, stresses, cross-section.
V. P. Mushchanov, Yu. V. Syvokon
Design procedure and designing of a ladder march of an individual construction
Donbass National Academy of Civil Engineering and Architecture
Abstract. In clause there is resulted the classification of ladder marches of an individual design and the analysis of various types of similar ladders. The development of a design procedure of ladder marches on bolts is described.
Key words: a ladder march of the individual design, the approached design procedure, the intense-deformed condition, a method of final elements.
G.N. Gladyshev, D.G. Gladyshev
Estimation of influence of variability of a step of armature on bearing ability of a monolithic reinforced plate of silage overlapping
National University “Lviv polytechnics”
Scientifi-engineering firm “Rekonstrproekt”
Abstract. Questions of possible decrease of operational reliability of monolithic reinforced concrete designs of plates in relation to the project at the expense of fluctuation of distances between cores (steps) of the working and constructive fixture are considered.
Key words: not taken into account factors at designing, silos case, plate of overlapping above silos, tool natural research, characteristic site of the control, defect – fluctuation of steps of the fixture, estimation of fluctuation of steps of the fixture.
R.Kinash, A.Kopylov
Application of pulsating stream for control of an aerodynamic trail of the round cylinder
National university «Lviv polytechnics»
Abstract. The method of fissile control of an aerodynamic trace of a round cylinder with the use of fluctuating flows ejected from the side surface is described in the article. The result of it must be the effect of intensive turbulence decrease in the tearing off plase, and also width reduction of rotational track in a trace behind the solitary cylinder. The method of control is in perturbation of steam by intensive ejection of the current according to the selected frequency through holes which are made along the generator of the cylinder. The frequency of perturbations changes in a wide range and depends on the frequency of curls on the cylinder surface.
Key words: a wind tunnel, round cylinder, aerodynamic trace, turbulence, fluctuating flows.
S.F. Pichugin, A.V. Semko, G.N. Trusov
Modern problems of bearing steel structures designing for industrial and civilian construction
Yuri Kondratyuk National Technical University of Poltava
Abstract. This material is based on a large bulk of design and construction data. Various types of bearing steel structures are under consideration. The most economical structural systems are determined. They are as follows: steel-framed structures, trusses of grand span, concrete-steel composite cross-frames. These results can be used for practical utilization in industrial and civil engineering.
Key words: bearing constructions of industrial buildings, design schemes of buildings, space rigidity of frames, loading on a coverage, light steelworks, steel-reinforced concrete structures.