Concrete
Mostrando 13-24 de 1942 artigos, teses e dissertações.
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13. Clarifying the theoretical basis of the global geometric imperfection analysis (out-of-plumb columns)
Abstract The concrete structures present several geometric deviations, some of them considered indirectly in the safety factors of the design. However, the imperfections of the element axes, especially columns, should be explicitly considered in the structural analysis because they have great influence over the building stability. The NBR 6118:2014, Brazilia
REM, Int. Eng. J.. Publicado em: 2021-06
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14. Numerical analysis of collapse modes in optimized design of alveolar Steel-concrete composite beams via genetic algorithms
Abstract The objective of this study is to present the formulation and applications of the optimization problem of steel-concrete composite alveolar beams. In addition to presenting the formulation, a comparative analysis of the predominant collapse modes is performed numerically via the finite element method. The optimization program was developed with the
REM, Int. Eng. J.. Publicado em: 2021-06
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15. Reliability and geotechnical safety applied to deep foundations in precast concrete piles - case study
Abstract The Brazilian standard pertinent to the design and execution of foundations, NBR 6122/2019, establishes that the safety inspection of foundations of a given project must be conducted based on compliance with specified safety factors. Safety factor verification is imperative to meet regulatory requirements; however, it is not enough to guarantee the
REM, Int. Eng. J.. Publicado em: 2021-01
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16. Forecasting bearing capacity performance with semi-empirical and theoretical methods applied to precast concrete piles founded on sandy clay in the region of Uberlândia-MG, Brazil
Abstract This article presents a study on the performance of semi-empirical methods based on the Standard Penetration Test (SPT) for the prediction of bearing capacity already disseminated in the practice of Brazilian Foundation Engineering (Aoki and Velloso, 1975; Décourt and Quaresma, 1978, 1996; Teixeira,1996), together with the recent method proposed by
REM, Int. Eng. J.. Publicado em: 2020-12
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17. Collusion: How Central Bankers Rigged the World
Abstract This article presents a study on the performance of semi-empirical methods based on the Standard Penetration Test (SPT) for the prediction of bearing capacity already disseminated in the practice of Brazilian Foundation Engineering (Aoki and Velloso, 1975; Décourt and Quaresma, 1978, 1996; Teixeira,1996), together with the recent method proposed by
Contexto int.. Publicado em: 2020-12
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18. Proposal of a method for service life prediction of a concrete structure: a case study
Abstract This article presents a method for service life prediction of concrete structures. The proposed method aims to estimate the performance of a concrete structure through its permeability to carbon dioxide penetration, in order to verify its accordance to Brazilian standards. This case study is based on an inspection made in an educational building in
REM, Int. Eng. J.. Publicado em: 2020-09
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19. Chloroquine and COVID-19: Should We Care about Ototoxicity?
Abstract Introduction Severe acute respiratory syndrome coronavirus 2 was first described in December 2019 in China leading to a Public Health Emergency of International Concern. It was named by the World Health Organization as Coronavirus Disease 2019 (COVID-19), and it garnered unprecedented attention from public health researchers around the world, and s
Int. Arch. Otorhinolaryngol.. Publicado em: 2020-09
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20. CONSTRUCTION AND TESTING OF GLUED LAMINATED TIMBER FRAMES FOR USE IN LAYING POULTRY HOUSES
ABSTRACT This study aimed to present a solution in glued laminated timber to replace frame structures built in reinforced concrete and metallic structure, which are common in agricultural buildings in western Paraná such as those destined to laying poultry house building by agricultural cooperatives. Structural behavior of frames build from Araucaria angust
Eng. Agríc.. Publicado em: 2020-04
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21. A Conceptual Approach to the -ING Construction: Aspects of Radiality and Subjectification
Abstract: The -ING construction has a number of uses in the English language, and teaching it to speakers of other languages poses some challenges, as learners tend to interpret the construction as a verbal one, in the progressive aspect, which is only one part of the picture. Bearing this in mind, we have developed a corpus-based research into the form-mean
Ilha Desterro. Publicado em: 2020-04
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22. Composite floor system with CFS trussed beams, concrete slab and innovative shear connectors
Abstract Steel and concrete floor systems are widely applied for buildings and provide excellent structural response, optimized material consumption, reduced beam height, and improved bending strength and stiffness capacity. In recent years, many experimental investigations concerned with new alternatives addressed to efficient interaction between steel and
REM, Int. Eng. J.. Publicado em: 2020-03
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23. Importancia percibida de la motricidad en Educación Infantil en los centros educativos de Vigo (España)
Abstract Up to the present, a lot of documentation has been published about the importance of motor functions in the integral development of individuals. This research intends to reach out the knowledge of the concrete reality of motor practice and find out the importance given to it in the second cycle of Early Childhood Education in the schools of Vigo, Sp
Educ. Pesqui.. Publicado em: 20/01/2020
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24. Entre o céu e a terra: as esculturas (neo)concretas de Franz Weissmann dos anos 1950
As esculturas de Franz Weissmann de 1950 têm uma recepção ambígua: enquanto críticos internacionais recebem-nas como arte concreta, o circuito brasileiro define-as como neoconcretas. O primeiro grupo somente descreve os elementos formais dos trabalhos, mas críticos locais – começando por Ferreira Gullar – enfatizam seus efeitos expressivos, que ca
ARS (São Paulo). Publicado em: 20/01/2020