Vertical response of unbonded fiber reinforced elastomeric isolators (U-FREIs) under bidirectional shear loading
Fiber Reinforced Elastomeric Isolators (FREIs) were generally studied in unbonded configuration. Due to combined axial and shear loads, the contact area between the bearing and horizontal supports reduces with the horizontal displacement. As a result, both the vertical and the horizontal stiffnesses...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-11-01
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| Series: | Frontiers in Built Environment |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fbuil.2022.1056187/full |
| _version_ | 1798018806145089536 |
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| author | Simone Galano |
| author_facet | Simone Galano |
| author_sort | Simone Galano |
| collection | DOAJ |
| description | Fiber Reinforced Elastomeric Isolators (FREIs) were generally studied in unbonded configuration. Due to combined axial and shear loads, the contact area between the bearing and horizontal supports reduces with the horizontal displacement. As a result, both the vertical and the horizontal stiffnesses decrease with the horizontal deformation while also the vertical deformation increases. This paper presents the results of a large set of full-scale 3D Finite Element Analyses on unbonded fiber reinforced bearings with different geometries, subjected to combined axial and multi-directional shear loads. The main vertical response parameters were studied, namely the vertical displacement, the vertical stiffness, and the effective compressive modulus, thus highlighting the influence of both geometry and horizontal loading direction on the vertical response of the FREIs. Conclusion of this study demonstrate to what extent the combined influence of geometric properties and loading conditions affects the vertical response of elastomeric bearings with flexible reinforcements. |
| first_indexed | 2024-04-11T16:29:07Z |
| format | Article |
| id | doaj.art-53b86ddea81341a7bff35b588cb12fae |
| institution | Directory Open Access Journal |
| issn | 2297-3362 |
| language | English |
| last_indexed | 2024-04-11T16:29:07Z |
| publishDate | 2022-11-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Built Environment |
| spelling | doaj.art-53b86ddea81341a7bff35b588cb12fae2022-12-22T04:14:04ZengFrontiers Media S.A.Frontiers in Built Environment2297-33622022-11-01810.3389/fbuil.2022.10561871056187Vertical response of unbonded fiber reinforced elastomeric isolators (U-FREIs) under bidirectional shear loadingSimone GalanoFiber Reinforced Elastomeric Isolators (FREIs) were generally studied in unbonded configuration. Due to combined axial and shear loads, the contact area between the bearing and horizontal supports reduces with the horizontal displacement. As a result, both the vertical and the horizontal stiffnesses decrease with the horizontal deformation while also the vertical deformation increases. This paper presents the results of a large set of full-scale 3D Finite Element Analyses on unbonded fiber reinforced bearings with different geometries, subjected to combined axial and multi-directional shear loads. The main vertical response parameters were studied, namely the vertical displacement, the vertical stiffness, and the effective compressive modulus, thus highlighting the influence of both geometry and horizontal loading direction on the vertical response of the FREIs. Conclusion of this study demonstrate to what extent the combined influence of geometric properties and loading conditions affects the vertical response of elastomeric bearings with flexible reinforcements.https://www.frontiersin.org/articles/10.3389/fbuil.2022.1056187/fullfiber reinforced elastomeric isolatorsseismic isolationvertical stiffnessvertical displacementseffective compressive modulus |
| spellingShingle | Simone Galano Vertical response of unbonded fiber reinforced elastomeric isolators (U-FREIs) under bidirectional shear loading Frontiers in Built Environment fiber reinforced elastomeric isolators seismic isolation vertical stiffness vertical displacements effective compressive modulus |
| title | Vertical response of unbonded fiber reinforced elastomeric isolators (U-FREIs) under bidirectional shear loading |
| title_full | Vertical response of unbonded fiber reinforced elastomeric isolators (U-FREIs) under bidirectional shear loading |
| title_fullStr | Vertical response of unbonded fiber reinforced elastomeric isolators (U-FREIs) under bidirectional shear loading |
| title_full_unstemmed | Vertical response of unbonded fiber reinforced elastomeric isolators (U-FREIs) under bidirectional shear loading |
| title_short | Vertical response of unbonded fiber reinforced elastomeric isolators (U-FREIs) under bidirectional shear loading |
| title_sort | vertical response of unbonded fiber reinforced elastomeric isolators u freis under bidirectional shear loading |
| topic | fiber reinforced elastomeric isolators seismic isolation vertical stiffness vertical displacements effective compressive modulus |
| url | https://www.frontiersin.org/articles/10.3389/fbuil.2022.1056187/full |
| work_keys_str_mv | AT simonegalano verticalresponseofunbondedfiberreinforcedelastomericisolatorsufreisunderbidirectionalshearloading |