Development of seismic map for offshore platform design in Indonesia, case study of the North Coast of Java. Issue 1 (1st July 2022)

• Record Type: Journal Article
• Authors: Hendriyawan, ; Aditramulyadi, D D; Tawekal, R L; Rildova,
• Is Part Of: IOP conference series. Volume 1065:Issue 1(2022)
• Publication Date: 2022-07-01
• Subjects: return period -- seismic hazard -- seismic maps -- simplified method -- exposure level; Earth sciences -- Periodicals; Environmental sciences -- Congresses; Environmental sciences -- Periodicals; 550.5
• DOI: 10.1088/1755-1315/1065/1/012033
• Languages: English
• ISSNs: 1755-1307

Abstract

Abstract: Indonesia's design of earthquake-resistant offshore platforms does not yet have specific regulations. The commonly used standard in Indonesia, API RP 2A WSD, does not explicitly state the earthquake return period for offshore structures. A more detailed procedure is described in ISO 19901-2:2004. Two methods are introduced in the standard. First, the simplified method allows the use of earthquake maps with a return period of 1000 years. Second, the detailed method requires a site-specific seismic hazard study to determine the return period of earthquakes. This paper presents the development of seismic hazard maps using a simplified method following ISO 19901-2:2004. The maps are prepared using the probabilistic method with a case study on the North Coast of Java. The results show that the study area falls into seismic zones 1 and 2. The seismic hazard maps can be used for earthquake resistance design for structures with exposure level L2 and L3 based on the seismic risk category following the ISO.