Experimental study on the behavior of RC bridge piers with various aspect ratios

Title: Experimental study on the behavior of RC bridge piers with various aspect ratios
Author(s): D.H. Lee, Y.S. Chung, C.K. Park, H. Kim
Paper category : conference
Book title: International Conference on Advances in Concrete and Structures
Editor(s): Ying-shu Yuan, Surendra P. Shah and Heng-lin Lü
Print-ISBN: 2-912143-41-1
e-ISBN: 2351580176
Publisher: RILEM Publications SARL
Publication year: 2003
Pages: 1509 - 1515
Total Pages: 7
Nb references: 4
Language: English

Abstract: 
Short reinforced concrete bridge piers are particularly susceptible to shear failure as a consequence of the high shear/moment ratio and conservatism in the flexural strength design of existing RC bridge pier, which were constructed before 1992. In addition, shear failure is brittle and involves rapid strength degradation. Inelastic shear deformation is thus unsuitable for ductile seismic response. However, there are not many experimental research works for shear failure of the RC bridge pier in Korean subjected to moderate earthquake motions.This study was conducted to investigate the flexural and shear performance of older columns for the purpose of seismic assessment of circular RC bridge piers with moderate confinement by the quasi-static test. The specimens were constructed with the diameter of 1.2m and the height of 4.8m. This study has been performed to verify the effect of aspect ratio. Experimental seismic performance of test specimens was analyzed by the lateral force-displacement hysteric curve, the envelope curve and the strength degradation curve. These results show that less aspect ratio can have greater energy absorption capacity and less displacement ductility.

Online publication: 2003-08-10
Publication type : full_text
Public price (Euros): 0.00