Local action of loading on concrete cubes

Dmytro Hladyshev; Roman Kinasz

Titles

Abstract

W artykule przedstawiono i porównano różne podejścia do projektowania elementów betonowych z uwzględnieniem odkształcenia betonu na rozciąganie w obejmie wokół pola zgniecenia przy różnych poziomach obciążenia. Celem badań było określenie głównych czynników, które odróżniają podejścia empiryczne do schematów obliczeniowych dla częściowo obciążonych obszarów od eksperymentalnego charakteru rozkładu deformacji rozciągania oraz zniszczenia betonu obejmy wokół powierzchni obciążenia. Doświadczalnie określono poprzeczne naprężenia rozciągające betonu na obwodzie bocznych powierzchni kostki o wymiarach żeber 300 mm przy powstawaniu pęknięć i do zniszczenia.

In the work, different approaches to projecting concrete elements have been considered, taking into account concrete deformation under tension in a casing around the crushing area at different levels of loading. The purpose of the investigations was the detection of the principal factors, which discern the taken empirical approaches to the computing models from the experimental character of tension strain distribution and concrete deterioration around the loading area. There have been determined, through an experiment, the lateral strains of the concrete tension along the perimeter of the side cube faces with the size of cube edges that equal to 300 mm with the formation of the cracks and up to the deterioration. The approach to calculations of the effect made by the samples of the above-mentioned type on local vertical loading with the reducing coefficient of their working conditions should be considered in the regulatory documents.

Keywords

obciążenie miejscowe, naprężenie, odkształcenie, deformacja

local loading, stress, strain, deformation

References

[1] Bambura A.N., Bachinskiy V.Ya., Guidelines for the refined calculations of reinforced concrete elements, taking into account the full diagram of concrete compression, NIISK of the USSR State Committee for Construction, Gosstroy, Kyiv 1987.
[2] Code of Regulations, SP 52-101-2003. Concrete and reinforced concrete structures without reinforcement pre-strain.: Russian State Committee for Construction, Moscow 2004.
[3] Construction Norms and Regulations, SNIP 2.03.01-84. Concrete and reinforced concrete structures. Design standards. TSITP of the USSR State Committee for Construction, Gosstroy, Moscow 1986.
[4] Construction Standards of the Republic of Belarus, SNB 5.03.01-02. Concrete and reinforced concrete structures, Ministry of Architecture and Construction of Belarus, Minsk 2003.
[5] DSTU B V.2.6-156: 2010. Concrete and reinforced concrete structures made of heavy concrete. Design Rules, Ministry of Regional Development, Kyiv 2011.
[6] Hladyshev D.N., The local effect of stress on concrete elements // Resource-saving materials, structures, buildings and edifices, Collection of scientific papers National University of Water Management, Issue 29, Rivne 2014, 94–101.
[7] Knauff M., Obliczanie konstrukcji żelbetowych według Eurokodu 2: zasady ogólne i zasady dotyczące budynków, Wydawnictwo Naukowe PWN, Warszawa 2015.
[8] Łapko A., Projektowanie konstrukcji żelbetowych: wg Eurokodu 2 i PN-B-03264:1999, Arkady, Warszawa 2000.
[9] Manual for designing foundations on a natural basis for columns of buildings and structures (Addendum to the SNiP 2.03.01-84 and SNiP 2.02.01-83), Lenpromstroyproekt of the USSR State Committee for Construction, Gosstroy – TSITP of the USSR State Committee for Construction, Gosstroy, Moscow 1989.
[10] PN-EN 1992-1-1:2008/NA:2010 Eurokod 2: Projektowanie konstrukcji z betonu.

Information

Information: Technical Transactions, 2017, Volume 12 Year 2017 (114), pp. 113 - 122

DOI: https://doi.org/10.4467/2353737XCT.17.213.7756

Article type: Original article

Titles:

Polish:

Local action of loading on concrete cubes

English:

Local action of loading on concrete cubes

Authors

Dmytro Hladyshev

Lviv Polytechnic. Department of Architectural Constructions

Department of Civil Engineering and Architecture, Lviv National Agrarian University

Roman Kinasz

Faculty of Mining and Geoengineering, AGH University of Science and Technology

Published at: 27.12.2017

Article status: Open

Licence: None

Percentage share of authors:

Dmytro Hladyshev (Author) - 50%

Roman Kinasz (Author) - 50%

Article corrections:

-

Publication languages:

English

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Number of downloads: 944

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