Submitted on: 29 June 2000.
Revised on: 20 October 2000.
Accepted on: 02 December 2000.
___________________International Journal of Structural Engineering
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Submitted on: 24 August 2006.
Revised on: 30 October 2006.
Accepted on: 06 December 2006.
___________________International Journal of Structural Engineering
Submitted on: 01 February 2017.
Revised on: 26 April 2017.
Accepted on: 11 May 2017.
___________________International Journal of Structural Engineering
Submitted on: 28 January 2004.
Revised on: 01 April 2004.
Accepted on: 27 April 2004.
___________________International Journal of Structural Engineering
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