Experimental evaluation of structural model and ground motion characteristics effects on RC bridge piers

Kashani, Mohammad, Ge, Xiao and Alexander, Nicholas A. (2018) Experimental evaluation of structural model and ground motion characteristics effects on RC bridge piers. In Proceedings of 16th European Conference on Earthquake Engineering, Thessaloniki, Greece.

Record type: Conference or Workshop Item (Paper)

Abstract

This study reports a set of benchmark shaking table tests of four large-scale RC columns. Three of columns have identical design dimensions and details. They are subjected to three difference ground motions: (i) a near-field without pulse record, (ii) a near-field pulse-like record and (iii) a far-field record. All three records are spectrally matched to a common elastic spectrum. These particular benchmark column tests are designed to explore the influence of non-ergodic properties of the ground motion time-series on the seismic performance of RC bridge piers. The fourth column is identical in geometry and main-reinforcement detailing, however, it is lightly confined with larger horizontal ties spacing. The same far-field ground motion is used to test this column to examine the confinement effects on RC bridge piers during an earthquake.

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