New approach to optimization of reinforced concrete beams

Lepš, M.; Šejnoha, Michal

doi:10.1016/s0045-7949(03)00215-3

Cited by 105 publications

(43 citation statements)

References 4 publications

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“…This task can be quite demanding considering the number of different bar diameters, their possible combinations and possibility of making bundles consisting of two to four same or different bars. Besides that, taking all the reinforcement spacing rules and requirements into account can rise the number of variables from two (crosssectional dimensions) to as much as 16 [8,9]. In order to simplify this problem, some authors limited the number of rows to one [10,11] or two [12], the number of bars per row to four [10] or five [12] or assumed that all bars have the same diameter [13,14].…”

Section: Problem Definitionmentioning

confidence: 99%

Quantitative method for evaluating applicability of designed reinforcement pattern

Milajić

Prokić²,

Beljaković

et al. 2015

Teh. vjesn.

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Original scientific paper Methods for optimal design of the reinforced concrete structures presented in literature usually do not consider detailed reinforcement pattern, or if they do, it is either too generalized or the optimal solution is always the one with the lowest amount of the reinforcement, disregarding its applicability in reality, at the building site. In order to develop adequate apparatus for numerical estimation and easier choice of the most appropriate solution from the practical point of view, a field research was conducted at the building sites for obtaining data about realistic time needed for placing and fixing reinforcement in different formations. Obtained results were normalized and functional correlations between them were established. Testing results confirmed that proposed approach can help a designer to choose the most applicable solution among several theoretically acceptable ones and that the developed reinforcement pattern coefficient can be successfully used in solving complex optimization problems. Keywords: applicability evaluation; optimization; reinforcement pattern; reinforced concrete structures Kvantitativna metoda za ocjenu primjenljivosti projektirane sheme armiranjaIzvorni znanstveni članak U metodama optimalnog projektiranja armiranobetonskih konstrukcija koje se mogu naći u literaturi obično se ne razmatra detaljna shema armiranja ili je, ako se i razmatra, to ili previše uopćeno, ili se za optimalno rješenje uvijek usvaja ono s najmanjom količinom armature, bez obzira na njegovu primjenljivost u stvarnosti, tj. na gradilištu. U cilju razvoja odgovarajućeg matematičkog aparata za numeričku ocjenu i lakši odabir odgovarajućeg rješenja s praktične točke gledišta, provedeno je terensko istraživanje na gradilištima kako bi se prikupili podaci o realnom vremenu potrebnom za postavljanje i fiksiranje različitih rasporeda armature. Prikupljeni rezultati su normalizirani i između njih su uspostavljene funkcionalne korelacije. Rezultati testiranja su potvrdili da prikazani pristup može pomoći projektantu kod odabira najprimjenljivijeg rješenja između nekoliko teorijski prihvatljivih te da se izvedeni koeficijent sheme armiranja može uspješno primijeniti pri rješavanju složenih optimizacijskih problema.

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Section: Problem Definitionmentioning

confidence: 99%

Quantitative method for evaluating applicability of designed reinforcement pattern

Milajić

Prokić²,

Beljaković

et al. 2015

Teh. vjesn.

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“…Vast experimental and theoretical material has been accumulated on investigation of load redistribution and bearing capacity of statically indeterminate structures with consideration of plastic properties of reinforcement and concrete [5][6][7][8][9][10][11][12][13]. It is obvious that both theory and practice of RC construction impose the necessity of such approaches for designing RC structural systems.…”

Section: Introductionmentioning

confidence: 99%

Control of stress-strain state in double-span reinforced concrete beams

Statsenko

Mitasov

2018

MATEC Web Conf.

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Considering the tendency of reinforced concrete to redistribute load depending on the amount and location of effective reinforcement a series of experiments were performed using a non-traditional approach with set strain behavior of reinforced concrete beams during crack formation. The influence of location and number of cracks on load redistribution in double-span reinforced concrete beams was assessed.During the experiments comparative analysis of moments at support and at span was performed using uniform method of experiment. The paper presents mechanisms of load redistribution caused by non-linear deformations of a cracked element and plastic properties of compressed concrete.

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“…One of the great advantages of T-beams sections is the economy of the amount of steel needed for reinforcement. For structures requiring reduced height such as parking spaces and bridge decks, beams with lower template are preferred [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Cost optimum design of doubly reinforced high strength concrete T-beams

Fedghouche

2017

Scientia Iranica

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New approach to optimization of reinforced concrete beams

Cited by 105 publications

References 4 publications

Quantitative method for evaluating applicability of designed reinforcement pattern

Quantitative method for evaluating applicability of designed reinforcement pattern

Control of stress-strain state in double-span reinforced concrete beams

Cost optimum design of doubly reinforced high strength concrete T-beams

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