| Retrofit of Ressalat jacket platform （Persian Gulf） using friction damper device |
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| 作者姓名： | Y. KOMACHI M. R TABESHPOUR A. A. GOLAFSHANI I. MUALLA |
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| 作者单位： | [1]Department of Civil Engineering, Pardis Branch, Islamic Azad University, Pardis, Iran [2]Faculty of Engineering Sabzevar Tarbiat Moallem University, Sabzevar, Iran [3]Department of Civil Engineering, Sharif University of Technology, Tehran Iran [4]DAMPTECH Ltd., Denmark Technical University, Lyngby, Denmark |
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| 摘 要： |
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Retrofit of Ressalat jacket platform (Persian Gulf) using friction damper device |
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| Y. KOMACHI,M. R,TABESHPOUR,A. A. GOLAFSHANI,I. MUALLA.Retrofit of Ressalat jacket platform (Persian Gulf) using friction damper device[J].Journal of Zhejiang University Science,2011,12(9):680-691. |
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| Authors: | Y Komachi M R Tabeshpour A A Golafshani and I Mualla |
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| Institution: | (1) University of Alabama in Huntsville, Huntsville, USA |
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| 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. |
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