Comparative Assessment on the Rocking Response of Seismically Base-Isolated Rigid Blocks
| Autor: | Nicolò Vaiana, Davide Pellecchia, Luciano Rosati, Salvatore Sessa |
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| Přispěvatelé: | Pellecchia, Davide, Sessa, Salvatore, Vaiana, Nicolò, Rosati, Luciano |
| Rok vydání: | 2020 |
| Předmět: |
Surface (mathematics)
State variable Work (thermodynamics) Materials science business.industry Base (geometry) 02 engineering and technology Structural engineering 021001 nanoscience & nanotechnology Rigid body Elastomer Algebraic equation 020303 mechanical engineering & transports 0203 mechanical engineering Phenomenological model 0210 nano-technology business Earth-Surface Processes |
| Popis: | In this work we investigate the rocking response of the Riace bronze A, a slender statue modelled as an equivalent rigid body freestanding on an isolated base supported on: (a) Steel Reinforced Elastomeric Bearings, (b) Fiber Reinforced Elastomeric Bearings, (c) Flat Surface Sliding Bearings, and (d) Curved Surface Sliding Bearings. The dynamic responses of such devices contribute significantly to the rocking response of the base-isolated rigid block, so it is necessary to accurately predict the complex hysteretic behaviors of the above-mentioned devices. For this reason, an innovative uniaxial phenomenological model has been used. The proposed hysteretic model is described by an algebraic equation that does not require iterations to evaluate the state variables, namely the device restoring forces. Moreover, the proposed hysteretic model is based on a set of parameters with a clear mechanical significance. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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