Effects of Transverse Reinforcement on Strength and Ductility of High-Strength Concrete Columns

Sun Kyoung Hwang; Byung Hoon Lim; Chang Gyo Kim; Hyun Do Yun; Wan Shin Park

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자료유형: 학술저널

저자정보: Sun Kyoung Hwang Byung Hoon Lim Chang Gyo Kim Hyun Do Yun Wan Shin Park

저널정보: 대한건축학회 ARCHITECTURAL RESEARCH ARCHITECTURAL RESEARCH Vol.7 No.1

발행연도: 2005.6

수록면: 39 - 48 (10page)

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Main objective of this research is to evaluate performance of high-strength concrete (HSC) columns for ductility and strength. Eight one-third scale columns with compressive strength of 69 MPa were subjected to a constant axial load corresponding to 30 % of the column axial load capacity and a cyclic horizontal load-inducing reversed bending moment. The variables studied in this research are the volumetric ratio of transverse reinforcement (ρs=1.58, 2.25 %), tie configuration (Type H, Type C and Type D) and tie yield strength (f_yh =549 and 779 MPa). Test results show that the flexural strength of every column exceeds the calculated flexural capacity based on the equivalent concrete stress block used in the current design code. Columns with 42 % higher amounts of transverse reinforcement than that required by seismic provisions of ACI 318-02 showed ductile behaviour, showing a displacement ductility factor (μ_Δu) of 3.69 to 4.85, and a curvature ductility factor (μ_φu) of over 10.0. With an axial load of 30 % of the axial load capacity, it is recommended that the yield strength of transverse reinforcement be held equal to or below 549 MPa.

참고문헌 (19)

참고문헌 신청

[학술지(정기간행물)] - / 1987. / High Strength Concrete in North America Proceedings of Symposium on Utilization of High Strength Concrete

[학술지(정기간행물)] - / / Economic Considerations for Using High Strength Concrete in High Rise Buildings study prepared for Elborg Technology Co.

[학술지(정기간행물)] - / 1989 / Economic Advantages of High-Strength Concrete in Columns : 25 ~ 92

[학술지(정기간행물)] - / 1988. / International Conference of Building Officials

[학술지(정기간행물)] - / pp.192-201. / What Do We Know about Confinement in Reinforced Concrete Columns? (2)

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