Mechanical Properties of Butyl Rubber Composites with Microspheres Under Cyclic Loading

Yurkin, Yuriy; Benavent‐Climent, Amadeo; Kovtonyuk, Pavel; Varankina, D. A.; Voloskova, Irina

doi:10.1007/978-3-030-79983-0_13

Cited by 2 publications

(3 citation statements)

References 23 publications

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“…The viscoelastic material is made of butyl rubber composites with special microspheres (“expancell microspheres”) that make the material expand under high temperatures (180°C). A detailed description of the VE material can be found in 14 …”

Section: Concept Of the New Hybrid Energy Dissipation Devicementioning

confidence: 99%

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Shake table tests on a reinforced concrete waffle‐flat plate structure with new hybrid energy dissipation devices

Benavent‐Climent

Escolano‐Margarit

Yurkin

et al. 2022

Earthq Engng Struct Dyn

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This paper presents a new hybrid energy dissipation device and investigates experimentally its capability to improve the seismic response of an inherently very flexible structural system: a reinforced concrete waffle-flat plate structure. The new device combines in parallel within a single device a low-cost viscoelastic (VE) component and a metallic yielding (MY) component. The device has a gap that prevents deformations on the MY component in the range of displacements caused by wind or low intensity earthquakes, to avoid high-cycle fatigue damage. The MY component is expected to activate under the design or the maximum credible earthquake, providing the main structure with lateral stiffness, and a reliable and large source of energy dissipation capacity. Six new hybrid energy dissipation devices (energy dissipation system) were installed in a scaled two-story portion of a prototype RC waffle-flat plate structure (main structure) designed only for gravity loads, without considering special ductility detailing or capacity design rules for the columns. The VE component of the hybrid energy dissipation devices reduced the translational periods with largest effective modal mass along the horizontal directions X and Y to 60%, and increased the fraction of damping to about 12%. The main structure with the energy dissipation system was subjected to bidirectional shake table tests that represented frequent, design and maximum credible earthquakes. In the tests, the main structure remained basically undamaged under the frequent and the design earthquakes, whereas it suffered minor (reparable) damage under the maximum credible earthquake. The MY component remained undeformed under low intensity earthquakes.

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Section: Concept Of the New Hybrid Energy Dissipation Devicementioning

confidence: 99%

“…A detailed description of the VE material can be found in. 14 The process of fabrication and assemblage of the new hybrid EDDs is as follows. First, layers of viscoelastic material having 4 mm thickness are fixed on two opposite faces of the inner tube.…”

Section: Concept Of the New Hybrid Energy Dissipation Devicementioning

confidence: 99%

Shake table tests on a reinforced concrete waffle‐flat plate structure with new hybrid energy dissipation devices

Benavent‐Climent

Escolano‐Margarit

Yurkin

et al. 2022

Earthq Engng Struct Dyn

Self Cite

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show abstract

“…Este material vioscoelástico esta fabricado a base de goma mezclada con microesferas que hacen que expanda cuando se somete a temperaturas de 180 grados centígrados. En la referencia [2] se puede encontrar una descripción detallada del material viscoelástico. El disipador esta diseñado para que bajo cargas de viento o terremotos frecuentes (que provocan desplazamientos relativos entre los extremos del disipador menores que Dg), la energía sea disipada por el elemento viscoelástico sin que se llegue a activar el elemento metálico.…”

Section: Descripción Del Nuevo Disipadorunclassified

Respuesta dinámica de estructuras con amortiguadores híbridos obtenida mediante ensayos con mesa vibrante

2022

Congreso Iberoamericano De Ingeniería Mecánica-Cibim 2022

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La estrategia convencional de proyecto sismorresistente actual permite que frente a sismos severos las estructuras plastifiquen y sufran daños importantes pero sin colapsar. Esta estrategia esta siendo fuertemente cuestionada por los enormes daños materiales que involucra y su fuerte impacto medioambiental. Desde principios del siglo XXI se esta produciendo un cambio de paradigma hacia el denominado Proyecto Basado en Prestaciones (PBP), uno de cuyos principales objetivos es el control del daño. Una manera eficiente de materializar los objetivos del PBP es incorporar en las estructuras dispositivos de disipación de energía que absorban la mayor parte de la energía que introduce el sismo, minimizando o evitando los daños en la estructura principal. Este trabajo presenta un nuevo dispositivo disipador de energía híbrido que combina componentes viscoelásticas e histeréticas. Se exponen ensayos dinámicos con mesa vibrante realizados para investigar la respuesta de estructuras equipadas con el nuevo dispositivo.Palabras clave: disipadores de energía; estructuras sismorresistentes; proyecto basado en prestaciones.

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Mechanical Properties of Butyl Rubber Composites with Microspheres Under Cyclic Loading

Cited by 2 publications

References 23 publications

Shake table tests on a reinforced concrete waffle‐flat plate structure with new hybrid energy dissipation devices

Shake table tests on a reinforced concrete waffle‐flat plate structure with new hybrid energy dissipation devices

Respuesta dinámica de estructuras con amortiguadores híbridos obtenida mediante ensayos con mesa vibrante

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