Estimate of technical and economic benefits of a new space composite structure

Gasii, Grygorii; Hasii, Olena; Zabolotskyi, Oleg

doi:10.1051/matecconf/201711602014

Cited by 7 publications

(6 citation statements)

References 5 publications

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“…The combination of steel rod elements with reinforced concrete planes leads to the formation of space composite structures, which have acquired useful properties. Their efficiency has already been proved earlier [20]. Lightweight roofs consist of purlins that can be based on the main beams (frame girders) on top or adjacent to them at one level, and the flooring of the steel profiled sheet, which stiffness is used to increase the stability and fastening beams from torsion.…”

Section: Fig 1: Exit Of An Unrestrained Beam From the Bending Plane mentioning

confidence: 99%

The Problem of Consideration Torsion Emergence in Beams

Hudz¹,

Gasii²,

Пенц³

2018

IJET

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The calculation of the steel unrestrained and partially restrained roof beams with initial imperfections main stages is discussed. Restraining can be done by structures attached to the steel beams, namely, profiled flooring and discrete joints. On the basis of the new approach to the internal forces analysis and the geometric properties specification, the purpose was to find and describe the differences in the beam work as the part of roofing, which distinguishes it from the work conditions of the free supported beam. The features of the beam operation with the joint flexural and torsion are singled out. The need to improve the existing theoretical model for present deficiencies elimination is indicated. The bearing capacity determining methods for the flexible elements stability exposed to bending and bending with torsion are compared. Their advantages and disadvantages are revealed. It is proposed to increase the material saving by applying calculations. At the end of the article, conclusions regarding the consideration of investigated factors are given.

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Section: Fig 1: Exit Of An Unrestrained Beam From the Bending Plane mentioning

confidence: 99%

The Problem of Consideration Torsion Emergence in Beams

Hudz¹,

Gasii²,

Пенц³

2018

IJET

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“…Therefore the new system of support consisting of the combined modular elements [8] is developed. Preliminary experimental researches [9,10] and the feasibility study [11] demonstrate the efficiency of the offered constructive scheme. However, there are still many unexplored issues related to the design of the proposed support.…”

Section: Introductionmentioning

confidence: 99%

Testing of the combined structural elements of support of a mine opening

2020

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The stress-strain state of test specimens of the new combined system of support of a mine opening under imposed loads is studied. The test specimens are compound modular elements of the offered earlier combined system of support. Every single modular element is the regular quadrangular pyramid, consisting of a reinforced concrete slab and steel tube web members. The slab and web members are gathered in a complete element while concreting the slab. The tension sensor’s method of experimental research is applied to the test of specimens. The test of specimens is carried out under the load imposed with a hydraulic press. The load is set so that to imitate service conditions, including the most adverse. Design features of the offered support and test specimens are presented. Details of the support and its elements, sizes, production technology and assemblies are briefly described. The test methodology of specimens and the analysis of the results are presented. The load-carrying abilities of test specimens under the concentrated force and uniform load are obtained. Break down of slab and connection between the web members and the slab are the results of the test of the specimens under the concentrated force and the uniform load respectively.

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“…The slab is an upper chord of the structure and performs enclosing and carrying functions. The use of composite steel-concrete in composite cable space frame structures provides the opportunity for efficient and rational use of the strength properties of the most common building materials [12]. It is advisable to use columns of steel concrete composite tubular columns with centrifuged cores as abutments [13,14].…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Deformation State of a Composite Cable Space Frame Structures with a Photogrammetric Method

Storozhenko¹,

Yermolenko²,

Gasii³

2018

IJET

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The article presents experimental study results of the deformation state of composite cable space frame structures, including composite steel-concrete structures. Composite cable space frame structures are three-dimensional roof framing of long-span buildings. The designed constructions are a new type of roof framing structures and consist of typical composite steel-concrete modules connected with steel cable elements. The operation of composite cable space frame structures under load is characterised by geometric nonlinearity. The aim of the research is to study the deformation state and changing the geometric shape of experimental structures under the influence of external load. The technique of studying the deformation state of the composite cable space frame structures is based on the principles of digital photogrammetry. At the limit state the composite cable space frame structures change their regular shape. In this case, the central vertical points get the greatest vertical displacements, and the displacement value decreases closer to the supports. It is defined that the investigated construction has demonstrated combined action of all its components during the test, which indicates its effectiveness. The application of the photogrammetry method made possible to determine the moment of reaching the limit state of the composite cable space frame structures concretely.

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Estimate of technical and economic benefits of a new space composite structure

Cited by 7 publications

References 5 publications

The Problem of Consideration Torsion Emergence in Beams

The Problem of Consideration Torsion Emergence in Beams

Testing of the combined structural elements of support of a mine opening

Investigation of the Deformation State of a Composite Cable Space Frame Structures with a Photogrammetric Method

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