The following information was submitted:
Transactions: WSEAS TRANSACTIONS ON APPLIED AND THEORETICAL MECHANICS
Transactions ID Number: 31-434
Full Name: M.Reza Emami Azadi
Position: Assistant Professor
Age: ON
Sex: Male
Address: No.2/12 Gharabaghi Alley, Dr. Beheshti Ave., 51549
Country: IRAN
Tel: 0098 411 3340311
Tel prefix: 98
Fax: 0098 411 3340311
E-mail address: dr.emami@azaruniv.edu
Other E-mails: mrea130@hotmail.com
Title of the Paper: Nonlinear Behavior of Pile-Soil Subjected to Torsion due to Environmental Loads on Jacket Type Platforms
Authors as they appear in the Paper: Dr. M.R. Emami Azadi, Prof. S. Nordal, M.Sadein
Email addresses of all the authors: dr.emami@azaruniv.edu, s.nordal@hotmail.com , msadein@yahoo.com
Number of paper pages: 10
Abstract: Abstract: - In the present study, the torque-twist behavior of non-linear pile-soil system related to the wave-current loading on Jacket type offshore platform is investigated. The non-linearities of pile-soil with respect to both depth and the twist angle of pile are considered. The basic differential equilibrium equations of the pile-soil system are derived based on hyper- elasticity theory of soil. A numerical central finite difference method is applied based on simplification of stress field around the pile elements which takes into account changes in the secondary shear stress components and also non-linearities due to non-homogeneous soil condition. This method uses a one-dimensional mesh along pile-soil interface. It also takes into account the changes in G of soil with respect to the twist angle of pile. In a separate work, the simulated torque-twist behavior of pile-soil system based on this analysis approach is compared with the res!
ults of more refined finite element analysis by using continuum mechanics theory and also full scale pile-soil test results (Emami,2002). The torque-twist results by using the proposed approach have been used to study the behavior of two jacket-pile-soil systems under sea environmental and accidental loading.
Keywords: Key-Words: - Pile-Soil interaction, Jacket-Pile-Soil system, Pile-Soil Non-linearities, Disk Model of Soil, Torque-Twist (t-t) transfer curves
EXTENSION of the file: .pdf
Special (Invited) Session: Invited Paper among best papers- WSEAS2008 Conference, Greece 22-24 July, 2008
Organizer of the Session: M.-K. Nikolinakou, Massachusetts Institute of Technology (MIT), USA George Tsekouras, National Technical University of Athens, GREECE Vassilis Gekas,
How Did you learn about congress: M.Sadein, Department of Civil Eng., Univ. of Tabriz, Tabriz, E-mail: msadein@yahoo.com
IP ADDRESS: 217.219.136.66
