Submitted on: 02 December 2002.
Revised on: 21 February 2003.
Accepted on: 25 March 2003.
___________________JOURNAL OF EARTHQUAKE ENGINEERING
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Submitted on: 31 March 2011.
Revised on: 25 July 2011.
Accepted on: 28 August 2011.
___________________JOURNAL OF EARTHQUAKE ENGINEERING
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