Title:
Experimental Quantification on the Residual Seismic Capacity of Damaged RC Column Members
Author(s):
Chien-Kuo Chiu, Hsin-Fang Sung, Kai-Ning Chi and Fu-Pei Hsiao
Publication:
IJCSM
Volume:
13
Issue:
Appears on pages(s):
Keywords:
reinforced concrete, building, residual seismic performance, crack width, reduction factor
DOI:
10.1186/s40069-019-0338-z
Date:
3/31/2019
Abstract:
To quantify the post-earthquake residual seismic capacity of reinforced concrete (RC) column members, experimental
data for 6 column specimens with flexural, flexural–shear and shear failure modes are used to derive residual seismic
capacity of damaged RC column members for specified damage states in this work. Besides of the experiment data,
some related researches are also investigated to suggest the reduction factors of strength, stiffness and energy dissipation
capacity for damaged RC column members, respectively. According to the damage states of RC columns, their
corresponding seismic reduction factors are suggested herein. Taking an RC column with the flexural–shear failure
for an example, its reductions factors of strength, stiffness and energy dissipation capacity are 0.5, 0.6 and 0.1, respectively.
This work also proposes the seismic performance assessment method for the residual seismic performance of earthquake-damaged RC buildings. In the case study, this work selects one actual earthquake-damaged school building to demonstrate the post-earthquake assessment of seismic performance for a damaged RC building.