Concrete And Wood
Mostrando 1-12 de 28 artigos, teses e dissertações.
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1. 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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2. REPRODUCTIVE EFFICIENCY AND BEHAVIOR OF PREGNANT SOWS HOUSED IN CAGES AND COLLECTIVE PENS WITH OR WITHOUT BEDDING
ABSTRACT This study aimed to evaluate the effect of wood shaving bedding on pregnant sows under two housing conditions. Sixty-four animals were distributed into four treatments, each treatment included 54 sows split into three replicates. A 2 × 2 factorial design was used (two types of housing, collective pens (CP) and combined housing (cages + CP [CCP]); a
Eng. Agríc.. Publicado em: 25/04/2019
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3. Alternative vibro-dynamic compression processing of wood-cement composites using Amazonian wood
RESUMO Compósito madeira-cimento é um potencial material de construção para regiões tropicais, devido a suas propriedades físico-mecânicas e resistência ao ataque de fungos e podridão. Contudo, é importante testar métodos alternativos de produção e madeiras que sejam mais simples e baratos do que os tradicionalmente usados, para que se alcance u
Acta Amaz.. Publicado em: 2019-03
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4. Thermal environment of masonry-walled poultry house in the initial life stage of broilers
RESUMO Objetivou-se com esta pesquisa monitorar e avaliar o ambiente térmico e realizar o mapeamento térmico completo das variáveis temperatura do ar, umidade relativa do ar e índice de temperatura e umidade de aviário para frangos de corte. A pesquisa foi conduzida durante inverno, no Brasil, em aviário comercial, com fechamento completo em alvenaria
Rev. bras. eng. agríc. ambient.. Publicado em: 2019-03
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5. Available space in feeders for housed sheep: social behavior and performance
ABSTRACT This study was designed to assess the effects of feeding space availability on social behavior and performance of housed crossbreed sheep through the use of three different types of feeders. Thirty-six crossbreed ewes (Santa Inês × Dorper; 2-3 years old) with initial body weight of 34.99±4.28 kg were randomly assigned to a 3 × 3 (feeder type ×
R. Bras. Zootec.. Publicado em: 29/11/2018
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6. BASIC UNIT COST SIMULATION FROM FREE-STALL DESIGN TO DAIRY CATTLE CONFINEMENT USING DIFFERENT CONSTRUCTION TECHNIQUES
ABSTRACT The ascendancy of milk production in Brazil is due to mainly to the adoption of confinement systems, however, construction quality of these systems impact on milk production. This study aimed to simulate the Basic Unit Cost (BUC m-2), referring to a free-stall design with capacity for 80 animals and different construction techniques, with a database
Eng. Agríc.. Publicado em: 2016-12
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7. Calcined Clay Lightweight Ceramics Made with Wood Sawdust and Sodium Silicate
This paper aims to study the influence of including wood sawdust and sodium silicate in the production process of calcined clay lightweight ceramics. In the production process first, a sample used by a company that produces ceramic products in Brazil was collected. The sample was analysed by techniques of liquidity (LL) and plasticity (LP) limits, particle s
Mat. Res.. Publicado em: 17/10/2016
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8. Design of a new high lateral resistance sleeper and performance comparison with conventional sleepers in a curved railway track by means of finite element models
The lack of lateral resistance in a curved railway track can produce misalignment problems due to the centrifugal forces when the trains pass through. Moreover, most of the times continuous welded rails (CWR) are used in nowadays railway tracks, which can induce the track buckling as a result of thermal loads caused by high temperature gradients. A new sleep
Lat. Am. j. solids struct.. Publicado em: 2014-12
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9. Propiedades físico-mecánicas de tableros terciados construidos con especies tropicales de plantaciones para uso estructural
Concrete, steel and plastics are the materials used for construction in Costa Rica. Meanwhile, wood from plantation are being introduced in the market. The present study aims to characterize and measured some physical and mechanical properties of plywood panels manufactured with veneers of Gmelina arborea, Tectona grandis and Acacia mangium coming from fores
CERNE. Publicado em: 2012-06
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10. Experimental evaluation wood-to-concrete and wood composite members joints using steel-bar and concrete connectors / Avaliação experimental de ligações de peças mistas madeira- concreto e entre peças de madeira com conectores de barra de aço e de concreto
Apresenta-se neste trabalho uma avaliação experimental de ligações de peças mistas madeira-concreto e de peças compostas de madeira, com emprego de conectores de barras de aço e de conectores de concreto. Nas ligações de peças mistas, foram ensaiados corpos-de-prova simétricos com três peças, com peças laterais de madeira e peça central de con
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/08/2010
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11. Theoretical and experimental analysis of wood I-beams for formwork purpose / Análise teórica e experimental de vigas de madeira de seção transversal "I" para uso em fôrmas para concreto
Due to the importance of wood in construction and the concern about the environmental impact, engineers have worried about the rationalization of its use through the development of engineered products, seeking the improvement of the technical properties. In this study, the I-beams built with reforestation wood were used for concrete formwork purpose. Their m
Publicado em: 2010
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12. Recomendações para o projeto e construção de estruturas com peças roliças de madeira de reflorestamento / Recommendations for design and construction of structures with roundwood from tree farms
The object of this work is to propose the draft for a handbook with recommendations for the design and construction of structures using treated roundwood originating from forest farming in Brazil. Roundwood structures were classified and characterized visually and mechanically. Guidelines were presented for the desing of bridges and barns with structural and
Publicado em: 2010