Precast Beams
Mostrando 13-17 de 17 artigos, teses e dissertações.
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13. Model of management for special structures : bridges and viaducts / Modelo de gestão para obras de arte especiais : pontes e viadutos
A aplicação de modelos de gestão na construção civil se mostra uma tendência, buscando minimizar riscos em empreendimentos e criar um diferencial competitivo. Neste contexto, o presente trabalho teve por objetivo desenvolver e implantar um modelo de gestão para confecção de vigas pré-moldadas, verificando possíveis ganhos em termos de custo, prazo
Publicado em: 2006
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14. REDISTRIBUIÇÃO DE MOMENTOS EM VIGAS CONTÍNUAS EM ADUELAS PROTENDIDAS COM CABOS SINTÉTICOS EXTERNOS / MOMENT REDISTRIBUTION IN CONTINUOUS SEGMENTAL BEAMS PRESTRESSED WITH EXTERNAL SYNTHETIC TENDONS
An experimental investigation on the behavior of continuous segmental concrete beams, prestressed with external aramid tendons, was carried out. Four beams were tested; one was monolithic and the others were constructed in precast dry- jointed segments. All the beams had the same overall dimensions, with two spans and an I section 30 cm high, flange width of
Publicado em: 2003
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15. Contribuição ao estudo da instabilidade lateral de vigas pré-moldadas / On the lateral stability of precast concrete beams
The lateral stability of long and slender precast concrete beams requires great attention. In particular, it is important to ensure the stability of these members during transitory phases like tilting and transport, and also when the deformability of temporary supports is taken into account. The state of the art of the problem of lateral stability in precast
Publicado em: 2002
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16. Precast concrete beam-to-column connections: emphasis on the deformability analysis / Ligações viga-pilar de estruturas de concreto pré-moldado: análise com ênfase na deformabilidade ao momento fletor
The present research deals with the study of two types of precast beam-to-column connections with emphasis on the deformability analysis. The first one is extensively used in precast concrete portal frames with sloping beams. The second one is used in multi-storey framed structures. Experimental tests on two models of each type of beam-to-column connections
Publicado em: 2002
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17. INESTABILIDAD DE ARCOS SEGMENTADOS DE CONCRETO ARMADO / INSTABILIDADE DE ARCOS SEGMENTADOS DE CONCRETO ARMADO / INSTABILITY OF SEGMENTAL REINFORCED CONCRETE ARCHS
Segmental arch is a structure made of several straight segments of precast concrete connected at points belonging to a curve in the form of an arch which circumscribes the structure. This type of arch has some advantages for the precasting industry: a) it allows the use of the same forms used to cast other types of straight pieces such as beams and columns;
Publicado em: 1997