A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Modeling of High Damping Rubber Bearings
Abstract High damping rubber bearings have been used in the seismic isolation of buildings worldwide for almost 30 years now. After a brief introduction to the process leading to their manufacturing, a description is given of the main tests required by current seismic codes for the design of such devices. An extensive review is then presented of the models available in the literature for the simulation of the dynamic response of high damping rubber bearings under simultaneous shear and compression. Given the extremely complex and highly nonlinear behavior of these devices, no model is capable of capturing every single aspect of the dynamic response. Issues and uncertainties involved in the characterization of this complex behavior are pointed out. These include, among others, coupled bidirectional horizontal motion, coupling of vertical and horizontal motion, strength and stiffness degradation in cyclic loading, and variation in critical buckling load capacity due to lateral displacement. Finally, a novel 1D mechanical model for high damping rubber bearings is proposed, based on the combination of simple and well-known rheological models. The model is calibrated against a set of harmonic tests at strain amplitudes up to . Extension to bidirectional horizontal motion and to varying vertical load is subject of ongoing work.
Modeling of High Damping Rubber Bearings
Abstract High damping rubber bearings have been used in the seismic isolation of buildings worldwide for almost 30 years now. After a brief introduction to the process leading to their manufacturing, a description is given of the main tests required by current seismic codes for the design of such devices. An extensive review is then presented of the models available in the literature for the simulation of the dynamic response of high damping rubber bearings under simultaneous shear and compression. Given the extremely complex and highly nonlinear behavior of these devices, no model is capable of capturing every single aspect of the dynamic response. Issues and uncertainties involved in the characterization of this complex behavior are pointed out. These include, among others, coupled bidirectional horizontal motion, coupling of vertical and horizontal motion, strength and stiffness degradation in cyclic loading, and variation in critical buckling load capacity due to lateral displacement. Finally, a novel 1D mechanical model for high damping rubber bearings is proposed, based on the combination of simple and well-known rheological models. The model is calibrated against a set of harmonic tests at strain amplitudes up to . Extension to bidirectional horizontal motion and to varying vertical load is subject of ongoing work.
Modeling of High Damping Rubber Bearings
Markou, Athanasios A. (author) / Oliveto, Nicholas D. (author) / Athanasiou, Anastasia (author)
2017-01-01
24 pages
Article/Chapter (Book)
Electronic Resource
English
Analytical Modeling of High Damping Rubber Bearings
| British Library Online Contents | 1997
Analytical Modeling of High Damping Rubber Bearings
| Online Contents | 1997
Modeling of high damping rubber bearings under bidirectional shear loading
| British Library Online Contents | 2019