Journal
COMPOSITE STRUCTURES
Volume 160, Issue -, Pages 300-311Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compstruct.2016.10.008
Keywords
Seismic isolation; Bridge structures; Fiber-reinforced; Elastomeric isolator; Experimental testing; Finite element analysis
Categories
Funding
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- Ontario Ministry of Research and Innovation (MRI)
Ask authors/readers for more resources
Unbonded fiber reinforced elastomeric isolators (U-FREI) have been proposed as a viable alternative to traditional steel reinforced elastomeric isolators (SREI) for use in low-rise building base isolation systems. The viability of U-FREI for this particular application was confirmed through an extensive evaluation of their lateral response under the condition of no rotational deformations of the loading supports. In order to extend the use of U-FREI to bridge applications the consideration of rotational deformation in the analysis is necessary as it is an important component in bridge isolator design. Currently, no data exists in the literature for investigating the influence of rotational deformation on the lateral response of U-FREI, to the best of authors' knowledge. Accordingly, an experimental and numerical study was completed on U-FREI to investigate their lateral behaviour under a range of vertical loads and rotational deformations in order to determine their suitability as a seismic isolator for bridges. The lateral stiffness and damping were computed experimentally for different levels of vertical pressure, angles of rotations and lateral deformations. Additionally, the resulting stress and strain state within the isolators under peak deformations was also evaluated numerically via 3D modelling and presented in this study. (C) 2016 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available