| Summary: | Castellated beam is one of structural elements which can be categorized
as a special profile in civil engineering, due to its aesthetic form and several
advantages at their strength. The weakness of castellated beam are limited
capacity to add the height, complex cutting process, buckling matter because of
it�s thin web and failure mechanism that mostly occurs because of vierendeel
mechanism. Those problem can reduced by modified castellated beam which has
angle shape as a connector. Modified castellated beam have benefits such as
unlimited height of the beam, simplified the cutting process, reducing the buckling
matter with angle stiffness shape, and solving vierendeel mechanism problem by
setting the stem�s height of modified castellated beam.
This research aims to observed the flexural behavior of modified
castellated beam. In this researcher tested one modified castellated beam. Testing
method was performed using two point static loading and reviewed the flexural
behavior of it. The test of load capacity analysis was compared with load capacity
analysis in the hexagonal openings of castellated beam and the rectangular
openings of castellated beam.
The result indicated that modified castellated beam has maximum load
capacity of 36,4 kN with a deflection of 80,34 mm. The pattern collapse of
modified castellated beam is lateral torsional buckling with the failure mostly
occur on the part near the joint restraint than on the part near roller restraint.
Comparation between modified castellated beam and previous research in
maximum load capacity of modified castellated beam (36,4 kN) is lower than
hexagonal openings of castellated beam (54,9 kN) but higher than rectangular
openings of castellated beam (24,6 kN).
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