TY  - JOUR
AU  - Assareh, Mohammad Amin 
AU  - Asgarian, Behrouz 
PY  - 2008
TI  - Nonlinear Behavior of Single Piles in Jacket Type Offshore Platforms Using Incremental Dynamic Analysis 
JF  - American Journal of Applied Sciences
VL  - 5
IS  - 12
DO  - 10.3844/ajassp.2008.1793.1803
UR  - https://thescipub.com/abstract/ajassp.2008.1793.1803
AB  - The operation for offshore oil has become an important issue in the recent years. Offshore
platforms are some of those structures which are built to withstand environmental and accidental loads
during oil exploitation operation. One of the most usual types of these platforms is the Jacket Type
Offshore Platform (JTOP) which can be divided into three important parts, which are Deck, Jacket and
piles. In order to increase the safety, particular attention should be paid to earthquake excitations which
are directly applied to the piles of these structures. Nonlinearity in piles and buckling of the struts are
important issues which have to be considered by the designers of offshore platforms. The case of
nonlinearity in piles and failure capture in these members has not effectively been covered by
researchers. Incremental Dynamic Analysis (IDA) is a powerful tool to assess the capacity of a
structure upon seismic loads. In this paper incremental dynamic analysis has been implemented on
single piles considering soil-pile interactions and free field site response. The use of nonlinear
materials and lateral load resisting elements in the incremental dynamic analysis done in this paper has
made it possible to get promising insights for incorporation of appropriate limit states and applications
of performance based engineering. Special Engineering Demand Parameters (EDP) and Intensity
Measures (IM) have been introduced for the single pile dynamic analysis in jacket type offshore
platforms.