Evaluation of Safety Index and Calibration of Load and Resistance Factors for Reinforced Concrete Beams under Bending, Shear and Torsion Demands

The aim of designing of the structural members is withstanding the members or structures against the different loading conditions such that the safety of the system could be preserved. The conventional method for designing of reinforced concrete members in Iranian concrete code is based on load and...

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Autores principales:	Faeze Jafari, Jalal Akbari, Alireza Jahanpour
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2017
Materias:	limit state function reliability-based design safety index load and resistance factors monte-carlo simulation Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/47a6e4952d524f0da371098147586750
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spelling	oai:doaj.org-article:47a6e4952d524f0da3710981475867502021-11-08T15:46:16ZEvaluation of Safety Index and Calibration of Load and Resistance Factors for Reinforced Concrete Beams under Bending, Shear and Torsion Demands2476-39772538-261610.22065/jsce.2016.41237https://doaj.org/article/47a6e4952d524f0da3710981475867502017-02-01T00:00:00Zhttps://www.jsce.ir/article_41237_a2fe96ef00ce14a572207c7dc945d634.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616The aim of designing of the structural members is withstanding the members or structures against the different loading conditions such that the safety of the system could be preserved. The conventional method for designing of reinforced concrete members in Iranian concrete code is based on load and resistance factor. Although, load and resistance parameters are random variables, and in the mentioned Code the constant values have been designated for them during the designing procedure. Accounting these factors as the constants parameters will ultimately be led to the unsafe and uneconomical designs. The main purpose of this paper is probability-based designing of reinforcement concrete beams under simultaneous effects of bending, shear and torsion actions. For this purpose, analytical relations of the limit states for combination of bending, shear and torsion have been developed. Using the method, the structural designers could be fulfilled the designing of the RC beams based on the importance of structures and the required safety indexes of the owners. The next goal of this investigation is evaluation and calibration of load and resistance factors for desired safety index. The economic and fully probabilistic designing of concrete beams for simultaneous effects of bending, shear and torsion are available by implementing the proposed design procedures. In order to calculate the safety indexes a computer program has been written in the MATLAB environment, and the Monte Carlo simulation technique has been utilized.Faeze JafariJalal AkbariAlireza JahanpourIranian Society of Structrual Engineering (ISSE)articlelimit state functionreliability-based designsafety indexload and resistance factorsmonte-carlo simulationBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 3, Iss 4, Pp 49-64 (2017)
institution	DOAJ
collection	DOAJ
language	FA
topic	limit state function reliability-based design safety index load and resistance factors monte-carlo simulation Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	limit state function reliability-based design safety index load and resistance factors monte-carlo simulation Bridge engineering TG1-470 Building construction TH1-9745 Faeze Jafari Jalal Akbari Alireza Jahanpour Evaluation of Safety Index and Calibration of Load and Resistance Factors for Reinforced Concrete Beams under Bending, Shear and Torsion Demands
description	The aim of designing of the structural members is withstanding the members or structures against the different loading conditions such that the safety of the system could be preserved. The conventional method for designing of reinforced concrete members in Iranian concrete code is based on load and resistance factor. Although, load and resistance parameters are random variables, and in the mentioned Code the constant values have been designated for them during the designing procedure. Accounting these factors as the constants parameters will ultimately be led to the unsafe and uneconomical designs. The main purpose of this paper is probability-based designing of reinforcement concrete beams under simultaneous effects of bending, shear and torsion actions. For this purpose, analytical relations of the limit states for combination of bending, shear and torsion have been developed. Using the method, the structural designers could be fulfilled the designing of the RC beams based on the importance of structures and the required safety indexes of the owners. The next goal of this investigation is evaluation and calibration of load and resistance factors for desired safety index. The economic and fully probabilistic designing of concrete beams for simultaneous effects of bending, shear and torsion are available by implementing the proposed design procedures. In order to calculate the safety indexes a computer program has been written in the MATLAB environment, and the Monte Carlo simulation technique has been utilized.
format	article
author	Faeze Jafari Jalal Akbari Alireza Jahanpour
author_facet	Faeze Jafari Jalal Akbari Alireza Jahanpour
author_sort	Faeze Jafari
title	Evaluation of Safety Index and Calibration of Load and Resistance Factors for Reinforced Concrete Beams under Bending, Shear and Torsion Demands
title_short	Evaluation of Safety Index and Calibration of Load and Resistance Factors for Reinforced Concrete Beams under Bending, Shear and Torsion Demands
title_full	Evaluation of Safety Index and Calibration of Load and Resistance Factors for Reinforced Concrete Beams under Bending, Shear and Torsion Demands
title_fullStr	Evaluation of Safety Index and Calibration of Load and Resistance Factors for Reinforced Concrete Beams under Bending, Shear and Torsion Demands
title_full_unstemmed	Evaluation of Safety Index and Calibration of Load and Resistance Factors for Reinforced Concrete Beams under Bending, Shear and Torsion Demands
title_sort	evaluation of safety index and calibration of load and resistance factors for reinforced concrete beams under bending, shear and torsion demands
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2017
url	https://doaj.org/article/47a6e4952d524f0da371098147586750
work_keys_str_mv	AT faezejafari evaluationofsafetyindexandcalibrationofloadandresistancefactorsforreinforcedconcretebeamsunderbendingshearandtorsiondemands AT jalalakbari evaluationofsafetyindexandcalibrationofloadandresistancefactorsforreinforcedconcretebeamsunderbendingshearandtorsiondemands AT alirezajahanpour evaluationofsafetyindexandcalibrationofloadandresistancefactorsforreinforcedconcretebeamsunderbendingshearandtorsiondemands
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Evaluation of Safety Index and Calibration of Load and Resistance Factors for Reinforced Concrete Beams under Bending, Shear and Torsion Demands

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