Post Tensioning
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. A numerical study on seismic response of self-centring precast segmental columns at different post-tensioning forces
Precast bridge columns have shown increasing demand over the past few years due to the advantages of such columns when compared against conventional bridge columns, particularly due to the fact that precast bridge columns can be constructed off site and erected in a short period of time. The present study analytically investigates the behaviour of self-centr
Lat. Am. j. solids struct.. Publicado em: 2014-10
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2. Análise comparativa dos fatores influentes na tensão última de protensão em cabos aderentes e não aderentes / Comparative analysis on the influent factors in the ultimate stress in bonded and unbonded tendons
A protensão não-aderente caracteriza-se pela liberdade de deslocamento relativo entre o cabo de protensão e a fibra de concreto adjacente. A tensão na armadura de protensão no estado limite último é de difícil obtenção, não sendo dependente apenas das deformações em uma determinada seção transversal, mas sendo função de todas as deformaçõe
Publicado em: 2009
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3. Avaliação in loco das perdas de protensão de cordoalhas engraxadas em lajes planas
This dissertation presents the results of in situ measurements of stress losses in unbonded tendons of post tensioned flat slabs. These flats slabs have approximately 350 m2 in area and are 17 centimeter thick. They are part of a 17 story high hotel building in Belo Horizonte. Load cells were employed to measure the forces in the tendons; they were placed in
Publicado em: 2008
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4. Surgical technique using AdVance™ Sling placement in the treatment of post-prostatectomy urinary incontinence
OBJECTIVES: To describe and illustrate a new minimally invasive approach to the treatment of male stress urinary incontinence following prostatectomy. SURGICAL TECHNIQUE: Our initial experience consisted of four patients treated with the Advance sling for post-prostatectomy urinary incontinence. Sling placement involves the following steps: 1. Urethral disse
International braz j urol. Publicado em: 2007-04
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5. A protensão como um conjunto de cargas concentradas equivalentes. / Prestressing as equivalent concentrated loads group.
This work is a study about the representation of the prestressing through a CELG (Concentrated Equivalent Loads Group) in order to determine the internal forces and displacements in prestressed structures, due to prestressing. This study considers the concept of prestressing, deviation forces and immediate loss of prestressing. Furthermore some alternative m
Publicado em: 2005
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6. Experimental punching shear analysis of reinforced and prestressed concrete slabs / Análise experimental da punção em lajes de concreto armado e protendido
The use of flat plates may offer some economical and aesthetic benefits when compared with other structural systems. The use of post-tensioned slabs may offer other advantages, as a better crack and deflection control and a thinner slab for the same span and load conditions. This work presents some experimental results and conclusions about the punching shea
Publicado em: 2001