Concrete Slabs
Mostrando 1-12 de 82 artigos, teses e dissertações.
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1. Numerical analysis of torsional tangent rigidity of reinforced concrete waffle slab
Resumo Este trabalho de investigação científica aborda a análise da rigidez tangente à torção de lajes nervuradas de concreto armado por meio de comparações da análise numérica com resultados de ensaios experimentais, cujo cálculo foi feito no programa ATENA. Tal programa foi desenvolvido especialmente para cálculo de estruturas de concreto arma
Rev. IBRACON Estrut. Mater.. Publicado em: 13/12/2019
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2. Nonlinear numerical analysis of composite slabs with steel decking
Resumo O comportamento das lajes mistas é governado pelo cisalhamento longitudinal na interface entre o aço e o concreto, que é desenvolvido em lajes sob flexão simples. O método m-k e o método da interação parcial, utilizados no cálculo da resistência ao cisalhamento na interface aço-concreto de lajes mistas, são baseados em ensaios experimentai
Rev. IBRACON Estrut. Mater.. Publicado em: 11/11/2019
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3. Experimental evaluation on the structural behavior of truss shear connectors in composite steel-concrete beams
Resumo As estruturas mistas apresentam grandes vantagens quanto a aspectos estruturais e construtivos, sendo os conectores de cisalhamento determinantes para a obtenção da interação entre os elementos estruturais e para a distribuição dos esforços na estrutura, aproveitando-se de forma efetiva da potencialidade de cada material constituinte da estrutu
Rev. IBRACON Estrut. Mater.. Publicado em: 11/11/2019
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4. Evaluation of the resistance of trussed slabs with steel formwork in cold formed U profile
Abstract In the last decades, the modernization in structural engineering has increased the use of steel-concrete composite and hybrid systems for slabs, when the adherence in the interface of the materials is present or not, respectively. In addition to the traditional steel deck, a similar solution for precast trussed slabs has been used for small construc
Lat. Am. j. solids struct.. Publicado em: 12/08/2019
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5. Plate with holes as shear connector in cold formed steel composite beams
Resumo Buscando compatibilizar as estruturas em perfil formado a frio com os sistemas de piso com pré-laje, foi proposta nesse trabalho uma alternativa de conector de cisalhamento para vigas mistas compostas por perfil formado a frio que visa maximizar a área disponível para apoio das pré-lajes durante o processo construtivo. Trata-se de um conector em c
Rev. IBRACON Estrut. Mater.. Publicado em: 18/07/2019
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6. Structural Behaviour of Cold-Formed Steel of Double C-Lipped Channel Sections Integrated with Concrete Slabs as Composite Beams
Abstract Cold-formed steel (CFS) construction is widely recognised as an important contributor to sustainability and green construction. Thus, the use of CFS construction is encouraged and had been advanced by innovations in its structural applications. One such innovation that has recently gained popularity is the use of CFS sections in composite constructi
Lat. Am. j. solids struct.. Publicado em: 27/06/2019
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7. Energia incorporada na fase de pré-uso: comparação entre lajes steel deck e maciças
Resumo A industrialização vem ganhando espaço como solução forte de economia e possibilita reduzir o consumo de materiais, recursos humanos, energéticos, temporais e financeiros em escalas diversas. Com isso, novas tecnologias vêm surgindo, como a laje steel deck, assim como estudos mais detalhados necessários para se verificar o consumo de energia e
Ambient. constr.. Publicado em: 10/06/2019
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8. Effect of temperature gradients on the behaviour of jointed plain concrete pavements
Resumo Em muitos países da América Latina os pavimentos de concreto com juntas (JPCP) são calculados usando os métodos da “American Association of State Highway and Transportation Officials (AASHTO) ou da “Portland Cement Association” (PCA), os quais não levam em consideração explicitamente as condições climáticas específicas de cada região
Rev. IBRACON Estrut. Mater.. Publicado em: 20/05/2019
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9. Aspects of Finite Element Modeling of Punching Shear Behavior of Reinforced Concrete Flat Slabs
Abstract A series of nonlinear FE analyses was conducted in this paper to model the punching shear failure of RC flat slabs. The analyses were carried out in the software DIANA using three-dimensional continuum elements. These analyses involve the test of different modeling choices in order to evaluate their influences on punching shear failure modeling. The
Lat. Am. j. solids struct.. Publicado em: 04/10/2018
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10. Failure Analysis of Polypropylene Fiber Reinforced Concrete Two-Way Slabs Subjected to Static and Impact Load Induced by Free Falling Mass
Abstract The impact resistance of concrete is considered as poor due to a relatively energy dissipating characteristics and tensile strength. Therefore, this paper investigates the feasibility of using polypropylene fibers (PF) to enhance punching shear capacity of reinforced concrete (RC) two-way slabs subjected to drop-weight impacts. The evaluated parame
Lat. Am. j. solids struct.. Publicado em: 23/04/2018
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11. Punching of reinforced concrete flat slabs with holes and shear reinforcement
Abstract Punching shear is a possible type of failure that occurs in reinforced concrete flat slabs, which can develop with an ultimate load below flexural capacity. Several researchers have studied the punching resistance of flat slabs over recent years. Although they have made great advances, there are codes that show different approaches to a singular des
REM, Int. Eng. J.. Publicado em: 2017-12
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12. Modeling of Combined Impact and Blast Loading on Reinforced Concrete Slabs
Abstract Explosive devices represent a significant threat to military and civilian structures. Specific design procedures have to be followed to account for this and ensure buildings will have the capacity to resist the imposed pressures. Shrapnel can also be produced during explosions and the resulting impacts can weaken the structure, reducing its capacity
Lat. Am. j. solids struct.. Publicado em: 2016-12