Title: Seismic reliability analysis of reinforced concrete framed buildings deteriorated by chloride ingress
Authors: Chien-Kuo Chiu; Wen-Yu Jean
Addresses: Department of Construction Engineering, National Taiwan University of Science and Technology, No. 43, Sec. 4, Keelung Rd., Taipei, Taiwan. ' National Centre for Research on Earthquake Engineering, No. 200, Sec. 3, HsinHai Rd., Taipei, Taiwan
Abstract: The main purpose of this study is to propose an evaluation method that can be used for analysing the time-dependent seismic reliability of reinforced concrete (RC) buildings located in a corrosive environment with high seismic hazard. In this study, several models have been developed to investigate the deterioration induced by chloride ingress in order to estimate the initiation stage and rate of corrosion and to analyse the structural capacity of columns and beams with corroded reinforcing bars; then, the seismic evaluation for RC framed buildings was used for calculating the story shear capacity of each floor in a building. In addition, the hazard curve of the story shear demand for each floor obtained from the seismic hazard analysis was adopted; consequently, a Monte Carlo simulation was carried out for estimating the annual failure probability and seismic reliability index of the concerned building; in other words, a time-dependent seismic reliability function could be built.
Keywords: reinforced concrete; chloride penetration; corrosion; earthquakes; seismic reliability; concrete framed buildings; chloride ingress; concrete structures; corroded reinforcing bars; rebars; shear capacity; Monte Carlo simulation; failure probability.
International Journal of Structural Engineering, 2013 Vol.4 No.1/2, pp.113 - 127
Received: 08 May 2021
Accepted: 12 May 2021
Published online: 02 Dec 2012 *