| Autor: |
Salonikios, Thomas N., Kolotsios, Georgios A. |
| Předmět: |
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| Zdroj: |
Structural Engineering International; Aug2023, Vol. 33 Issue 3, p462-472, 11p |
| Abstrakt: |
For the bridges of the present article, the envelope curves of the load-deformation diagram that resulted from experimental measurements of wall specimens and the application of literature and novel equations are considered. For these load-deformation envelope curves, the behavior factors of the considered bridge models are estimated graphically by considering the envelope curves and applying the equal energy law. The aforementioned behavior factors are calculated by the use of methodology that takes into account the poor inelastic response of walls with an aspect ratio of 1.0 and 1.5. In addition, the sliding shear dominated response of the wall-like piers and the top displacement of the pier are calculated by considering the three main deformation mechanisms. Furthermore, comparative studies are performed for the definition of the plastic hinge length that should be considered for a more rational approach to the inelastic design and checking of the wall-like piers of the bridges under examination. In this way, the use of behavior factors with values higher than those determined by Eurocode 8 is justified. In the case of bridges with damaged, repaired and strengthened walls, the achieved behavior factors are significantly lower than in the case of bridges with virgin walls. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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