Retrofit of Ressalat jacket platform (Persian Gulf) using friction damper device

[admin]

Hidden Content

Give reaction or reply to this topic to see the hidden content.

 

Journal of Zhejiang University SCIENCE A

 

Y Komachi, MR Tabeshpour, AA Golafshani, I Mualla

 

منبع:

Hidden Content

Give reaction or reply to this topic to see the hidden content.

 

Abstract: A friction damper device (FDD) is used for vibration control of an existing steel jacket platform under seismic excitation.

First, the damping is presented for vibration mitigation of structures located in seismically active zones. A new method for

quick design of friction or yielding damping devices is presented. The effectiveness of the damping system employing such FDDs

in a jacket platform is evaluated numerically. The influence of key parameters of the damping system on the vibration suppression

of the offshore structure is studied in detail. To examine the vibration control effectiveness of the FDD for the jacket platform,

performance of the controlled structure under the seismic forces is studied using numerical simulations. A parametric study is

undertaken to discover the optimized slip load and brace area of the FDD. It is shown that the FDD is effective in mitigating the

dynamic responses of the offshore platform structure.

Key words: Jacket offshore platform, Seismic retrofit, Friction damper devices (FDDs)

 

Hidden Content

Give reaction or reply to this topic to see the hidden content.