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Submitted on: 01 March 2014.
Revised on: 27 April 2014.
Accepted on: 20 May 2014.
___________________COMPUTER-AIDED CIVIL AND INFRASTRUCTURE ENGINEERING
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http://reply.papertrans.cn/1/63/6268/6268-34.png
http://reply.papertrans.cn/1/63/6268/6268-35.png
Submitted on: 21 September 2010.
Revised on: 26 December 2010.
Accepted on: 26 January 2011.
___________________COMPUTER-AIDED CIVIL AND INFRASTRUCTURE ENGINEERING