Behavior of ungrouted and unbonded post-tensioned masonry beams and slabs

Ricardo L. Bonett, Hector Urrego, Julian Carrillo

Resultado de la investigación: Contribución a una revistaArtículo

1 Cita (Scopus)

Resumen

© 2017 The paper shows and discusses the results of an experimental program aimed at assessing the flexural behavior of ungrouted and unbonded post-tensioned masonry (UUPTM) elements such a beams or two-way slabs. In this structural system, the bed and head mortar joints are excluded and the concrete blocks are post-tensioned with unbonded tendons. A special tendon restraint block has been added to provide nonlinear displacement capacity of the specimens. The global performance is assessed in terms of cracking patterns, failure modes and load-deflection curves. Results from the experimental program indicate that the tendon restraints blocks improve the flexural behavior in terms of strength and nonlinear displacement capacity. Comparison between measured and predicted strength demonstrated that the equations of out-of-plane or in-plane flexural capacity of walls or solid masonry beams provided by building codes for masonry structures, may be used to estimate the maximum flexural capacity of the UUPTM beams having tendon restraint block.
Idioma originalInglés estadounidense
Páginas (desde-hasta)703-714
Número de páginas12
PublicaciónEngineering Structures
Volumen141
DOI
EstadoPublicada - 15 jun 2017

Huella dactilar

Tendons
Concrete blocks
Mortar
Failure modes

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Bonett, Ricardo L. ; Urrego, Hector ; Carrillo, Julian. / Behavior of ungrouted and unbonded post-tensioned masonry beams and slabs. En: Engineering Structures. 2017 ; Vol. 141. pp. 703-714.
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Behavior of ungrouted and unbonded post-tensioned masonry beams and slabs. / Bonett, Ricardo L.; Urrego, Hector; Carrillo, Julian.

En: Engineering Structures, Vol. 141, 15.06.2017, p. 703-714.

Resultado de la investigación: Contribución a una revistaArtículo

TY - JOUR

T1 - Behavior of ungrouted and unbonded post-tensioned masonry beams and slabs

AU - Bonett, Ricardo L.

AU - Urrego, Hector

AU - Carrillo, Julian

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Y1 - 2017/6/15

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AB - © 2017 The paper shows and discusses the results of an experimental program aimed at assessing the flexural behavior of ungrouted and unbonded post-tensioned masonry (UUPTM) elements such a beams or two-way slabs. In this structural system, the bed and head mortar joints are excluded and the concrete blocks are post-tensioned with unbonded tendons. A special tendon restraint block has been added to provide nonlinear displacement capacity of the specimens. The global performance is assessed in terms of cracking patterns, failure modes and load-deflection curves. Results from the experimental program indicate that the tendon restraints blocks improve the flexural behavior in terms of strength and nonlinear displacement capacity. Comparison between measured and predicted strength demonstrated that the equations of out-of-plane or in-plane flexural capacity of walls or solid masonry beams provided by building codes for masonry structures, may be used to estimate the maximum flexural capacity of the UUPTM beams having tendon restraint block.

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