고강도 콘크리트 기둥의 2계 거동에 관한 실험적 연구Experiments on Second -Order Behavior of High Strength Concrete Columns

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To analyze the effects compressive strength of concrete and longitudinal steel ratio on second-order moment of columns, 30tied rein reinforced concrete columns with hinged ends were tested. The 80mm square cross section was used and the amount of eccentricity was 24mm. The compressive strengths of column specimens with slenderness ratios of 10, 60, and 100were 250, 648 and 880kg/, and the longitudinal steel ratios were 1.98%(4-D6) and 3.95%(8-D6). The ratio of ultimate load capacity to that of short column with the same eccentricity (Pu/Pn) was much decreased at high slenderness ratio with increasing the compressive strength of concrete. And the lateral displacement of slender column at the ultimate load was decreased as the strength was increased. These are due to that at high slenderness ratio the load capacity and behavior of column are affected by flexural rigidity. And, it was also found that with increasing steel ratio, the value of Pu/Pn and the lateral displacement at the ultimate load were larger for the same slenderness ratio.
Publisher
한국콘크리트학회
Issue Date
1992-10
Language
KOR
Citation

1992 한국콘크리트학회 가을 학술대회, pp.167 - 172

URI
http://hdl.handle.net/10203/115178
Appears in Collection
CE-Conference Papers(학술회의논문)
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