Abstract
Fixed offshore jackets are principal substructures widely used in offshore industries. An accurate consideration in finding an advantageous alternative to traditional steel material in the construction of this essential structure could be very efficient. The focus of this study is to simplify the construction procedures and to increase the serviceability life of the offshore jacket. To this aim, as a new low-cost material, high-specific-strength steel has been considered. With using ANSYS software, transient dynamic analysis has been implemented on two hypothesized three-legged jackets located in the Persian Gulf region. It is assumed that the modeled jackets are made of traditional steel and high-specific-strength steel material. The effects of an extreme wave load and a supply vessel impact load have been considered for the structural analysis. It has been shown that structural performances of the high-specific-strength steel jacket under the effects of the mentioned loads, are better compared to the traditional steel jacket.
Highlights
Fixed offshore jackets are the main substructures of offshore platforms largely used in the oil and gas industries
The same is for the dominant axial stress values for High-Specific-Strength Steel (HSSS) jacket that range from E = 144.60 to F = 409.77 kPa
The dominant axial stress values are away from the maximum stress zone (values ranges from the orange (H) zone to the red (I) zone)
Summary
Fixed offshore jackets are the main substructures of offshore platforms largely used in the oil and gas industries. According to the dynamic nature of sea waves and impact loads, transient dynamic analysis has been implemented as a reliable technique for the structural performance comparison of traditional steel jacket and HSSS jacket under the effect of extreme wave and vessel impact load.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
