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Maximum seismic displacements evaluation of steel frames from their post-earthquake residual deformation |
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| Authors: | A A Christidis E G Dimitroudi G D Hatzigeorgiou D E Beskos |
| Institution: | 1. Department of Environmental Engineering, Democritus University of Thrace, Xanthi, Greece 2. Department of Civil Engineering, University of Patras, Patras, Greece 3. Office of Theoretical and Applied Mechanics, Academy of Athens, Athens, Greece |
| Abstract: | The maximum seismic displacements of a structure can be used for the assessment of its post-earthquake performance. In this paper, a simple and efficient procedure is proposed for determining maximum seismic displacements of planar steel frames from their residual deformation. More specifically, the inelastic behaviour of 36 moment resisting steel frames and 36 concentrically X-braced steel frames under one hundred strong ground motions is investigated. Thus, on the basis of extensive parametric studies for these structures and seismic records, empirical equations are constructed for simple and effective prediction of maximum seismic displacements from residual deformation, which can be measured in-situ after strong seismic events. It is found that the usage of residual deformation can be effectively utilized to evaluate the post-earthquake performance level of steel structures. |
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