Submitted on: 13 June 2015.
Revised on: 13 July 2015.
Accepted on: 02 September 2015.
___________________Journal of Building Engineering
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Submitted on: 27 September 1998.
Revised on: 20 October 1998.
Accepted on: 30 October 1998.
___________________Journal of Building Engineering
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Submitted on: 18 September 2002.
Revised on: 15 November 2002.
Accepted on: 02 December 2002.
___________________Journal of Building Engineering
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