JAABE
[ Building Structures and Materials ]
Journal of Asian Architecture and Building Engineering - Vol. 15, No. 3, pp.605-611
ISSN: 1346-7581 (Print) 1347-2852 (Online)
Print publication date 30 Sep 2016
Received 06 Oct 2015 Accepted 12 Jul 2016
DOI: https://doi.org/10.3130/jaabe.15.605

Seismic Damage Assessment of Steel Reinforced Concrete Members by a Modified Park-Ang Model

Wei Huang*, 1 ; Jiang Qian2 ; Zhi Zhou1
1Doctoral Candidate, State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University China
2Professor, State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University China

Correspondence to: *Wei Huang, Doctoral Candidate, Research Institute of Structural Engineering and Disaster Reduction, College of Civil Engineering, Tongji University, 1239 Siping Road, Shanghai 20092, China Tel: +86-21-65986113 Fax: +86-21-65982668 E-mail: 2008huangwei@tongji.edu.cn

Abstract

Because the seismic performance of steel reinforced concrete (SRC) members are usually different from that of common reinforced concrete members, a modified Park-Ang damage model for SRC members is proposed in this paper. The combination coefficient of the modified damage model is derived using the related experimental results of SRC columns. Then, a formula is developed to describe the relationship between the coefficient and the parameters of the SRC columns such as the axial load ratio, steel ratio and slenderness radio. The results indicate that at the failure state of the SRC members, the modified damage index has a mean value close to 1.0 and limited scatter. The damage response of SRC members can be better represented by the modified damage model. Finally, based on the features of the skeleton curves and related research on performance classification of SRC members, the damage indexes at the principle damage states are calculated using the modified model.

Keywords:

SRC members, seismic damage, Park-Ang damage model, combination coefficient, performance level

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