대각보강된 철근콘크리트 연결보의 변위비 기반 취약도 함수 개발Drift Ratio-based Fragility Functions for Diagonally Reinforced Concrete Coupling Beams
- Other Titles
- Drift Ratio-based Fragility Functions for Diagonally Reinforced Concrete Coupling Beams
- Authors
- 이창석; 한상환; 고혜영
- Issue Date
- Mar-2019
- Publisher
- 한국지진공학회
- Keywords
- Coupling beam; Fragility function; Damage state; Diagonal reinforcements
- Citation
- 한국지진공학회논문집, v.23, no.2, pp.131 - 140
- Indexed
- KCI
- Journal Title
- 한국지진공학회논문집
- Volume
- 23
- Number
- 2
- Start Page
- 131
- End Page
- 140
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/148168
- DOI
- 10.5000/EESK.2019.23.2.131
- ISSN
- 1226-525X
- Abstract
- Diagonally reinforced concrete coupling beams (DRCBs) have been widely adopted in reinforced concrete (RC) bearing wall systems. DRCBs are known to act as a fuse element dissipating most of seismic energies imparted to the bearing wall systems during earthquakes. Despite such importance of DRCBs, the damage estimation of such components and the corresponding consequences within the knowledge of performance based seismic design framework is not well understood. In this paper, drift-based fragility functions are developed for in-plane loaded DRCBs. Fragility functions are developed to predict the damage and to decide the repair method required for DRCBs subjected to earthquake loading. Thirty-seven experimental results are collected from seventeen published literatures for this effort. Drift-based fragility functions are developed for four damage states of DRCBs subjected to cyclic and monotonic loading associated with minor cracking, severe cracking, onset of strength loss, and significant strength loss. Damage states are defined in a consistent manner. Cumulative distribution functions are fit to the empirical data and evaluated using standard statistical methods.
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