STUDI PERBANDINGAN NILAI DAKTILITAS HOLLOW PILE
DENGAN DAN TANPA PENAMBAHAN MATERIAL PENGISI
BETON COR SETEMPAT
Jaka Propika 1 , Eka Susanti 2 .
1,2 Jurusan Teknik Sipil – FTSP – ITATS,
email: [email protected], [email protected]
ABSTRACT
Precast hollow pile with diameter 600 mm is one of the pile types that is widely known in construction
building which requires large axial capacity. Based on the provision SNI 03-1726-2012 section 7.14.2.2.5,
pile as the part of substructure must behave ductile to dissipate the energy when is subjected during an
earthquake. Furthermore, pile must also behave in ductile manner due to lateral load at the changes of soft
soil and hard soil layers. According to the previous experimental investigation conducted by Budek et.al
(1997), it concluded that precast hollow pile could not behave in ductile manner when receiving a given
lateral load. It is shown from the results of displacement and curvature ductility tests that precast hollow pile
did not meet the minimum limits specified in provision used in Indonesia. In this study, experimental result
from Budek et.al (1997) was used as the validation for Model 1 using manual analysis and finite element
modeling by applying ABAQUS 6.10 and XTRACT 3.6. By referring the similar method from Model 1, the
study continued to Model 2, precast hollow pile with the addition of 67.8 Mpa cast concrete material into the
hollow. The results from the analysis on Model 1 showed at similar results provided with the experimental
result from Budek et.al (1997). It was proven that existing precast hollow pile could not behave in ductile
manner according to the minimum requirement of ductility as specified in SNI and ACI regulations.
Meanwhile, analysis of Model 2 showed the significant increment as the increase of displacement and
curvature ductility values that generated. In addition, the Model 2 showed an increase in displacement
ductility at 88.97% and 137.15% of curvature ductility. Based on the research results of displacement and
curvature ductility in all two Models of precast hollow pile, it can be concluded that Model 2 can provide a
better behavior on the increase in ductility.
Keywords: Piles, Pile Hollow ductility, curvature, Displacement.