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Structural Engineering and Mechanics
  Volume 12, Number 2, August 2001 , pages 157-168

Complete collapse test of reinforced concrete columns
Abdullah and Katsuki Takiguchi(Japan)

    In this paper, experimental investigation into the behavior of reinforced concrete (RC)
columns tested under large lateral displacement with four different types of loading arrangements is
presented. Each loading arrangement has a different system for controlling the consistency of the loading
condition. One of the loading arrangements used three units of link mechanism to control the parallelism
of the top and bottom stub of column during testing, and the remaining employed eight hydraulic jacks
for the same purpose. The loading systems condition used in this investigation were similar to the actual
case in a moment-resisting frame where the tested column was displaced in a double curvature. Ten
model column specimens, divided into four series were prepared. Two columns were tested monotonically
until collapse, and unless failure took place at an earlier stage of loading, the remaining eight columns
were tested under cyclic loading. Test results indicated that the proposed system to keep the top and
bottom stubs parallel during testing performed well.
Key Words
    complete collapse; constant axial load; lateral load; lateral displacement; loading arrangement; parallel keeping system; reinforced concrete column.
Abdullah and Katsuki Takiguchi, Department of Mechanical and Environmental Informatics, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan

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