scielo brasil optimization of reinforced concrete

SciELO - Brasil - Optimization of reinforced concrete ...

The conclusions related to the optimization study of reinforced concrete beams are presented below, considering 11 span lengths, 9 loadings and 5 characteristic compressive strength of the concrete: The estimate of the beam height, 10% of the free span, can be considered generally a good estimative, since it approaches the ratio of optimal ...

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SciELO - Brasil - Optimization of slender reinforced ...

Optimization of slender reinforced concrete columns subjected to biaxial bending using genetic algorithms ... Villa Lobos Office Park, CEP 05319-000, São Paulo, SP - Brasil, Tel. (55 11) 3735-0202, Fax: ... Scientific Electronic Library Online Av. Onze de Junho, 269 ...

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ORIGINAL ARTICLE Optimization of slender reinforced ...

Campinas, SP, Brasil . Abstract: In this paper, a computational tool was developed to optimize the design of slender reinforced concrete columns subjected to biaxial bending considering the material and geometric nonlinearities rigorously. The optimization process utilizes the technique of genetic algorithms to find the best cross-

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SciELO - Brasil - Optimization of the bending stiffness of ...

Table 3 describes the characteristics of the optimization test, shown in where f c k indicates the compressive strength of concrete, α r is the constraint factor b v of the connection, h v and h v are the dimensions, respectively, of the base and height of the beam, according to Figure 8, d 1 is the dimension of the column parallel to the ...

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SciELO - Brasil - Experimental analysis of reinforced ...

In Brazil, there is already a history of research and application of CFRP in the flexural strengthening of reinforced concrete beams, such as: Beber's work [ 6 [6] BEBER, A. J. Performance evaluation of reinforced concrete beams strengthened with carbon fiber blades, Porto Alegre, 1999, Thesis (Dissertation) - School of Engineering, Federal ...

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SciELO - Brasil - Ultra High-Performance Fiber-Reinforced ...

As a result, concrete cover and transport properties (associated with permeability) are the two most important parameters for the durability of concrete structures in aggressive environments [1 [1] Denarié, E and Bruhwiler, E. Strain-hardening Ultra-high Performance Fibre Reinforced Concrete: Deformability versus Strength Optimization ...

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SciELO - Brasil - Experimental study of concrete mixtures ...

3. Procedure 3.1 Definition of experimental program variables. To produce economically sustainable UHPRC we must study the proportions of the industrial waste to be used in the mix design, as well as compare the evolution of the resistance over time, that is, determine the magnitude of the accelerated resistance produced by the heat treatment at early ages, to compare it with economical curing ...

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SciELO - Brasil - Experimental Investigation of Steel ...

Abstract. The steel-concrete bond is a fundamental property in reinforced concrete structures. Although there are several studies on the steel-concrete bond, few of them have evaluated the performance of reinforcing bars with diameters less than 10.0 mm, which includes 5.0, 6.3, and 8.0 mm diameters, which are normally used in reinforced-concrete elements.

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ADVANCE OF FOUNDATION TECHNIQUES IN BRAZIL ... - scielo

ADVANCE OF FOUNDATION TECHNIQUES IN BRAZIL SINCE COLONIAL TIMES. ... Reinforced concrete. It was known that concrete multi layer structures of this era could be built over shallow footings of reinforced concrete or on top of massive rigid blocks of non reinforced concrete. ... optimization procedures, and for sure the mandatory sustainable ...

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SciELO Analytics (Beta)

SciELO - Scientific Electronic Library Online FAPESP CNPq BIREME FapUnifesp. Avenida Onze de Junho, 269 - Vila Clementino 04041-050 São Paulo. Tel.: +55 11 5083-3639/59 - Email: [email protected]

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Topology Optimization of Reinforced Concrete Plane Frames

RS, Brazil – e-mail: [email protected] ... Topology Optimization of Reinforced Concrete Plane Frames Moacir Kripka1 2, Juliana Triches Boscardin, Sauro Dias Casteli3

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Structural Optimization of Reinforced Concrete Building ...

Structural Optimization of Reinforced Concrete Building Grillages considering Cardinality Constraints Moacir Kripka1, Guilherme F. Medeiros1, Afonso C.C. Lemonge2 1 Engineering Graduate Program, University of Passo Fundo, Passo Fundo, Brazil, [email protected], [email protected]

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Metaheuristic optimization of structural sets of ... - SciELO

Kulkarni, A. R., Bhusare, V. (2016) Structural Optimization of Reinforced Concrete Structures. International Journal of Engineering Research Technology (IJERT), ISSN: 2278-0181, Vol. 5 Issue 07, pp. 123-127. [ Links ] Medina, M. (2017) Interfaz en MATLAB para la optimización de conjuntos estructurales. (Tesis de grado).

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Cost optimization of singly and doubly reinforced concrete ...

Apr 08, 2005  A model for the optimal design of rectangular reinforced concrete sections is presented considering the stress–strain diagrams described in EC2-2001 and MC90. The following expressions are developed: economic bending moment; optimal area of steel and optimal steel ratio between upper and lower steel. All the expressions are in nondimensional form.

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Pesquisa SciELO

SciELO - Scientific Electronic Library Online Av. Onze de Junho, 269 - Vila Clementino 04041-050 São Paulo SP - Brasil Tel.: (55 11) 5083-3639 - Email: [email protected]

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The strut-and-tie models in reinforced concrete structures ...

The strut-and-tie models are appropriate to design and to detail certain types of structural elements in reinforced concrete and in regions of stress concentrations, called "D" regions. This is a good model representation of the structural behavior and mechanism.

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(PDF) Open Science, open issues Denisa Kera - Academia

Academia is a platform for academics to share research papers.

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Optimal design of reinforced concrete beams for ... - SciELO

optimization techniques (Hisham-Ajmal, 2017); Optimization of reinforced concrete beams for rectangular sections with numerical experiments are presented for simply reinforced beams and doubly reinforced beams (Luévanos-Rojas, et al., 2018). These articles presented are

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ADVANCE OF FOUNDATION TECHNIQUES IN BRAZIL ... - scielo

ADVANCE OF FOUNDATION TECHNIQUES IN BRAZIL SINCE COLONIAL TIMES. ... Reinforced concrete. It was known that concrete multi layer structures of this era could be built over shallow footings of reinforced concrete or on top of massive rigid blocks of non reinforced concrete. ... optimization procedures, and for sure the mandatory sustainable ...

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Optimization of Reinforced Concrete Beams and Steel

the optimization of reinforced concrete beams and welded “I” steel beams. To achieve this objective, both problems were formulated according to Brazilian standards, considering the cost as ...

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Optimization of reinforced concrete columns according to ...

Feb 01, 2014  1. Introduction. The impact of reinforced concrete structures on environment is significant and has increased year after year. The world production of cement, major component of concrete, reached 1.6 billion tons/year in 2001, which corresponds to approximately 7% of the global load of carbon dioxide released into the atmosphere , .In 2010, according to the International Cement

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Topology Optimization of Reinforced Concrete Plane Frames

RS, Brazil – e-mail: [email protected] ... Topology Optimization of Reinforced Concrete Plane Frames Moacir Kripka1 2, Juliana Triches Boscardin, Sauro Dias Casteli3

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hormigón armado Metaheuristic optimization of ... - SciELO

Metaheuristic optimization of structural sets of reinforced concrete I. Negrin 1*, A. Negrin *, E. Chagoyén * *Universidad Central “Marta Abreu” de las Villas, Villa Clara, CUBA Fecha de Recepción: 25/03/2019 Fecha de Aceptación: 14/05/2019 PAG 181-192 Abstract

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EXPLORACIÓN CON REDES NEURONALES ARTIFICIALES ... - SciELO

Fatigue life prediction of fiber reinforced concrete under flexural load. In: International Journal of Fatigue. Vol. 21, pp. 1033-1049. [ Links ] [45] Domingo A., Lázaro C., and Serna P., (2000). Use of steel fiber reinforced concrete in thin shell structures: evaluation

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Moacir Kripka University of Passo Fundo (Brazil ...

In order to minimize the cost of the reinforced concrete columns, the amount and diameters of the reinforcement bars and the dimensions of the columns cross sections were considered as discrete variables. The optimization was made by Harmony Search optimization method, a metaheuristic inspired by music performance.

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The strut-and-tie models in reinforced concrete structures ...

The strut-and-tie models are appropriate to design and to detail certain types of structural elements in reinforced concrete and in regions of stress concentrations, called "D" regions. This is a good model representation of the structural behavior and mechanism.

get price

Pesquisa SciELO

SciELO - Scientific Electronic Library Online Av. Onze de Junho, 269 - Vila Clementino 04041-050 São Paulo SP - Brasil Tel.: (55 11) 5083-3639 - Email: [email protected]

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SciELO Analytics (Beta)

SciELO - Scientific Electronic Library Online FAPESP CNPq BIREME FapUnifesp. Avenida Onze de Junho, 269 - Vila Clementino 04041-050 São Paulo. Tel.: +55 11 5083-3639/59 - Email: [email protected]

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Modelación del módulo de la resistencia a la ... - SciELO

Cement and Concrete Research 35 2104 – 2109. [ Links ] Odera R.S., Onukwuli O.D. and Osoka E.C. (2011), Optimization of the Flexural Strength of Raffia Palm Fibre-Cement Composites. Journal of Emerging Trends in Engineering and Applied Sciences (JETEAS), Volumen 2(2): 294-297.

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Sustainability Free Full-Text Evaluation of Reinforced ...

This research presents a methodological process for selecting the most appropriate construction technique for the reconstruction of housing after a seismic disaster in a rural and heritage context. This process, which is applicable to a large part of the Andean region, incorporates sustainability criteria to guarantee the economic, social and environmental balance of the intervention. The ...

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Sustainability Free Full-Text Polymeric Waste from ...

The inadequate disposal of household appliances by consumers and industries have annually been generating enormous amounts of polymeric waste (PW). So, the interest in reuse of PW in civil construction has increased. The production of new cementitious materials, such as concrete with PW, proves to be a promising solution to inappropriate disposal of this waste. In this study, self-compacting ...

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