Experimental Study on Seismic Capacity of Reinforced Concrete Composite Columns Based on a High-ductile Fiber Cementitious Compositeopen access
- Authors
- Cho, Chang-Geun; Cheong, Sang-Hyeon; Moon, Hyung-Ju; Kim, Ho-Yeon; Lee, Kang-Seok
- Issue Date
- Feb-2019
- Publisher
- 한국콘크리트학회
- Keywords
- concrete column; high-ductile fber cementitious composite (HDFC); precast box; seismic improvement
- Citation
- International Journal of Concrete Structures and Materials, v.13, no.1, pp 1 - 10
- Pages
- 10
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- International Journal of Concrete Structures and Materials
- Volume
- 13
- Number
- 1
- Start Page
- 1
- End Page
- 10
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/3021
- DOI
- 10.1186/s40069-018-0324-x
- ISSN
- 1976-0485
2234-1315
- Abstract
- The authors examined the application of a high-ductile fber cementitious composite (HDFC) to develop seismicimproved reinforced-concrete columns. HDFC was manufactured to show high-ductile tensile strains above 2.0%,
sustaining tensile stress after cracks and developing multiple micro-cracks while avoiding crack localization. To seismi‑
cally improve a reinforced-concrete column, a precast box made of HDFC was applied locally at the fexural critical
region in the column plastic hinge zone; a construction process is also proposed. In seismic performance evaluations
of the developed column, a series of cyclic load tests was conducted by manufacturing four column specimens. It
was shown from experiments that the developed reinforced concrete and HDFC composite columns showed not
only improved seismic performances but also minimized bending and shear cracks in the fexural critical region of the
column.
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