Behavior of CFST-RC Pier under Different Ground Motions

Abstract:

The dynamic testing of large-scale structures continues to play a significant role in earthquake engineering research. The pseudo- dynamic test (PDT) is an experimental technique for simulating the earthquake response of structures and structural components in time domain. A CFST-RC pier is a modified form of CFST laced column in which CFST members are connected with RC web in longitudinal direction and with steel tube in transverse direction. For this study, a CFST -RC pier is tested under three different earthquake time histories having scaled PGA of 0.05g. From the experiment acceleration, velocity, displacement and load time histories are observed. The dynamic magnification factors for acceleration due to Chamoli, Gorkha and Wenchuan ground motions are observed as 12, 10 and 10 respectively. The frequency of the pier is found to be 1.42 Hz. The result shows that this type of pier has excellent static and earthquake resistant properties.

• Periodical: Advanced Materials Research (Volume 1145)
• Pages: 134-139
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1145.134
• Online since: March 2018
• Authors: Raghabendra Yadav*, Bao Chun Chen, Hui Hui Yuan, Zhi Bin Lian
• Keywords: Bridge Pier, CFST-RC Pier, Pseudo-Dynamic Test, Seismic Performance, Time History

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