Time History Dynamic Analysis of a New Constructed Offshore Jacket Platform in Persian Gulf Due to Random Waves

This research identifies the significant optimal intensity measures (IM) for seismic performance assessments of the fixed offshore jacket platforms. A four-legged jacket platform for the oil and gas operation is deployed to investigate the seismic performance. The jacket platform is applied with nonlinearly modeled using finite element (FE) software OpenSees. A total of 80 ground motions and 21 different IMs are incorporated for numerical analyses. Nonlinear time-history analyses are performed to obtain the jacket structure’s engineering demand parameters (EDP): peak acceleration and displacement at the top of the structure. Four important statistical parameters: practicality, efficiency, proficiency, and coefficient of determination, are then calculated to find the significant IMs for seismic performance of the jacket structure. The results show that acceleration-related IMs: effective design acceleration (EDA), A95 parameter, and peak ground acceleration (PGA) are optimal IMs, and the acceleration-related IMs have good agreements with the acceleration-related EDP.

Download Full-text

Study on nonlinear dynamic characteristics inherent in offshore jacket platform using long-term monitored response of ice-structure interaction

Applied Ocean Research ◽

10.1016/j.apor.2017.12.009 ◽

2018 ◽

Vol 72 ◽

pp. 23-38 ◽

Cited By ~ 3

Author(s):

Bingsen Wang ◽

Da Tang ◽

Qianjin Yue ◽

Jia Zhou ◽

Nakema Deonauth

Keyword(s):

Dynamic Characteristics ◽

Nonlinear Dynamic ◽

Jacket Platform ◽

Structure Interaction ◽

Offshore Jacket Platform ◽

Nonlinear Dynamic Characteristics

Download Full-text

Selection of Environmental Parameters for Offshore Jacket Platform Design in Malaysia

Steel and Aluminium Structures ◽

10.3850/978-981-08-9247-0_rp055-icsas11 ◽

2011 ◽

Author(s):

B. Idrus ◽

N. S. Potty ◽

M. F. A. Hamid ◽

Z. Nizamani ◽

N. J. Cossa

Keyword(s):

Environmental Parameters ◽

Jacket Platform ◽

Platform Design ◽

Offshore Jacket Platform ◽

Selection Of

Download Full-text

Computational Studies for Comparison between BRB Dampers and SERB New Romanian Dampers Performance in Damping System of High Buildings

Advanced Engineering Forum ◽

10.4028/www.scientific.net/aef.13.144 ◽

2015 ◽

Vol 13 ◽

pp. 144-147

Author(s):

Adriana Ionescu

Keyword(s):

Dynamic Analysis ◽

Seismic Analysis ◽

Computational Study ◽

Time History ◽

Computational Studies ◽

Buckling Restrained Braces ◽

Software Program

This paper presents a computational study for comparison of the behavior of a ten stories building equipped with two type of damping system: Buckling Restrained Braces (BRB dampers) and SERB new romanian dampers, during romanian earthquakes, according to romanian codes for seismic analysis. This study was computationally finalized using a software program made by the authors which permits time-history dynamic analysis of buildings equipped with different damping devices with different hysteresis such as: Maxwell, Kelvin-Voigt, Zener, Bouc-Wen, Taylor. The study will compare the drifts and the forces applied to the structure by the dampers. The SERB C-194 dampers are a cheaper way to protect the building during earthquake and restrict the drifts similarly with BRB dampers.

Download Full-text