KAJIAN PORTAL BAJA SRPMB (ELASTIS) DAN PORTAL BAJA SRPMK (DAKTAIL) BERDASARKAN SNI 03-1726-2012 DAN SNI 03-1729-2002
ABSTRACT: The most current
Indonesia National Standard on earthquakes SNI 03-1726-2012 is designed to
anticipate the latest earthquake events in the past decade. This standard as
well as the former SNI 03-1729-2002 incorporates the guidance for Ordinary
Moment Resisting Frame Systems(SRPMB)andSpecial Moment Resisting Frame Systems
(SRPMK). This study evaluates the performance steel frames based on the two
standards for high, and intermediate seismic regions with a variation in soil
conditions. The aim of this study was to obtain the most appropriate structural
steel system for high and intermediate earthquake regions. The analysis was
performed with the aid of a structural analysis program, and approached as a
two-dimensional case. The responseof earthquake loads was analyzed by the
dynamic response spectrum modal analysis on 8, 10 and 12 storey buildings. The
Semarang area was chosen for the intermediate seismic response, while Banda Aceh
functioned a prototype for the high seismic area. Three soil types were taken
into consideration; hard, medium and soft soil. The study showed that the
nominal of the earthquake load in the area of Banda Aceh was approximately
equal to 164% of the nominal earthquake load in Semarang. For the variations in
soil type it was found that for the Semarang as well as the Banda Aceh region,
the nominal earthquake loads on a steel structure based on the SRPMB was
approximately equal to 228,6% to the SRPMK. Further it was concluded that the
SRPMK steel stucture was able to reduce the earthquake load by approximately
87,5% as compared to the SRPMB steel structure that resulted in an earthquake
load reduction of 71,4%. It was therefore advised to use the SRPMK in designing
steel structures for areas in high seismic regions, whiles for the medium
seismic regions the both the SRPMB and the SRPMK method will yield in an
optimum design.
Penulis: Hamdany Auliya,
Sarwiasih Tri Purboningrum, Han Ay Lie, Himawan Indarto
Kode Jurnal: jptsipildd140538
