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Publikasi Ilmiah Dosen


FLEXURAL CAPACITY AND DUCTILITY OF CASTELLA BEAM DUE TO CYCLIC LOAD


Junus Mara

The purpose of this study was to determine the flexure capacity and ductility of the castella beam due to cyclic
load. This research was carried out through testing castella beams in the form of a portal with cyclic loading. Solid beams
steel used is profiles IWF 200 100 5.5 8 fabricated became castella beam. Test beam consists of a solid beam (NB) as a
comparison and castella beams (CB). The test results show increase 1.6 H of the high of CB beam, will affect to increase of
the section modulus (Sx) and moment of inertia (Ix) respectively by 76.41% and 173.43% compared to NB beam. This
increase is affect the increased flexure capacity castela beam of 82.5% compared to the beam NB Besides that, increases
in the beam high will increase the slenderness cross section (H/B) and lower radius of inertia (ry) on the y-axis. This causes
the transverse displacement of the CB beam is greater than NB beam. This condition causes the beam CB is less deformed
in the vertical direction. This is shown by the ductility of the CB beam decreased by 46, 92 % compared to NB beams.
Resistance is proportional to ductility, if the increased load will be followed by an increase in ductility. This relationship is
shown by both of the beam test.

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Dr. Ir. Josefine E. Latupeirissa, M.T.
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