Prestressed Cables In Beams
Mostrando 1-4 de 4 artigos, teses e dissertações.
-
1. 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
-
2. OTIMIZAÇÃO DO TRAÇADO DE CABO EM VIGAS DE CONCRETO PROTENDIDO CONSIDERANDO O ESTADO LIMITE ÚLTIMO DE FLEXÃO / OPTIMUM DESIGN OF CABLES IN PRESTRESSED CONCRETE STRUCTURES CONSIDERING THE ULTIMATE LIMIT STATE OF BENDING
The search for the optimum design, with the minimum possible material consumption and satisfying, at the same time, safety and in service conditions and also the constructive aspects, must be a central preoccupation of all engineers.Therefore the optimization of structures is such an important engineering area, which studies tools for helping the engineering
Publicado em: 2002
-
3. OPTIMUM DESIGN OF CABLES IN PRESTRESSED CONCRETE BEAMS / CONTRIBUIÇÃO AO PROJETO ÓTIMO DE CABOS EM VIGAS DE CONCRETO PROTENDIDO
O objetivo desse trabalho é apresentar uma metodologia para obtenção do traçado ótimo de cabos aderentes em vigas de concreto protendido, levando em consideração a variação das perdas por atrito ao longo dos cabos. Para atingi-lo, a formulação proposta considera os efeitos das perdas por atrito sobre as tensões e estabelece o valor custo mínimo
Publicado em: 2001
-
4. ANÁLISE DO COMPORTAMENTO À FLEXÃO DE VIGAS PROTENDIDAS COM CABOS EXTERNOS SINTÉTICOS / ANÁLISIS DEL COMPORTAMIENTO A LA FLEXIÓN DE VIGAS PROTENDIDAS CON CABLES EXTERNOS SINTÉTICOS / ANALYSIS OF THE FLEXURAL BEHAVIOR OF BEAMS PRESTRESSED WITH EXTERNAL TENDONS
Beams prestressed with external tendons have a number of attractions for engineers. They allow a reduction in weight, since concrete is not provided merely to act as cover to tendon or duct; they allow the tendons to be inspected for signs of corrosion and tendons can be replaced or retensioned if necessary. External prestressing is also an ideal application
Publicado em: 1999