International Science Community Association Research Journal of Recent Sciences 2277 - 2502 3 11 2014 November 2 Shape Optimization of Concrete Gravity Dams Using Performance Criteria Rules 92 97 EN Amanati Sahar 1 Business Management Department, Allameh Tabataba'i University, Tehran, IRAN yazdandoust Majid 1 Department of Civil Eng., Tarbiat Modares University, Tehran- 14115-111, IRAN panah Alikomak 2 Department of Civil Engineering, Parsian University, Qazvin- 14115-111, IRAN Reza Sadeghzadegan 3 Khorasani Homa 1 Faculty of Psychology, Roudehen Branch, Islamic Azad University, Roudehen, IRAN Hayedeh Saberi 2 Bagheri Nasrin 3 Beigloo Leila 1 East Azarbaijan Science and Research Branch, Islamic Azad University,Tabriz, IRAN Bohloli Nader 2 Department of Management, Bonab Branch, Islamic Azad University, Bonab, IRAN Vahedi Majid 3 Department of Management, Payam Noor University, PO BOX 19395-4697 Tehran, IRAN Abid Muhammad 1 GIFT University Gujranwala, PAKISTAN Rehman MohsinAbdul 2 Sajjad HassanyPazoky 1 Department of Geomatics, Faculty of Engineering, University of Tehran, Tehran, IRAN Mohammad Saadatseresht 2 Chehreghan Alireza 3 Michalovic Roman 1 Faculty of Special Engineering, 897, Rosina, SLOVAKIA Mikomix 2 Družinská 3 M.N. Hafiza 1 School of Fundamental Science, Universiti Malaysia Terengganu, 21030 Kuala Terengganu,Terengganu, MALAYSIA Isa M.I.N. 2 Center of Corporate Communication and Image Development, Universiti Malaysia Terengganu, 21030 Kuala Terengganu,Terengganu, MALAYSIA N.V. Biradar 1 Department of Zoology, Karnatak Science College, Dharwad, Karnataka, INDIA Sindagi AmbarishS. 2 Department of Microbiology, Karnatak Science College, Dharwad, Karnataka, INDIA Bellad A.S 3 Department of Botany, St. Joseph’s Post Graduate and Research Centre, Bangalore, Karnataka, INDIA Reddy Jayarama 4 Department of life sciences, Jain University, Bangalore, Karnataka, INDIA Navalur Ravi 5 Department of Microbiology, Karnatak University, Dharwad, Karnataka, INDIA Naykar Shivaraj 6 Department of Microbiology, University of Gondar, ETHIOPIA MathewsP. Raj 7 Sadashiv S.O 8 Chandrashekhar Unakal 9 Khadijeh KhodabakhshiParijan 1 DOS in B.N. Bahadur Institute of Management Sciences, Manasagangotri, University of Mysore, Mysore, Karnataka, INDIA Naderian Arash 2 Department of Accounting, Aliabad Katoul Branch, Islamic Azad University, Aliabad Katoul, IRAN Hayati Manouchehr 1 Islamic Azad University, UAE Branch, IRAN Vahedi Elham 2 Department of Executive Master of Business Administration, Alborz, IRAN Tavani SaeedNajafi 3 Department of Management, Institute of Management and Planning Studies, IRAN Department of Management and Global Economy, Instroct Scientific Applied Training Center, Tehran, IRAN Shirian Abbas 4 Department of Management, Alborz, IRAN Ebrahimi MohammadReza 5 Siji S. 1 Department of Chemistry, Sree Narayana College, Kannur-670007, Kerala, INDIA Dhanitha M.A. 2 Janardanan C. 3 Jana Müllerová 1 Department of Fire Engineering, Faculty of Special Engineering, University of Zilina, 1. mája 32, 010 08 Žilina, SLOVAKIA Talebi P 1 English Department, Mysore University, INDIA Memarian Arman 1 Islamic Azad University, Zanjan Branch, IRAN Ghader Bagheri 2 > Research Article 2013 11 21 2014 November 2 Shape optimization of concrete dams is a constraint nonlinear optimization problem. Since the failure mode of the monolith in concrete gravity dams is in tension, one of the main constraints is the tension stress limit under seismic loads. There is a new approach to check if the dam performance is safe andit is a more realistic method to observe the behavior of dams under earthquake load. According to this approach, the cumulative duration of the dam which passes the specific tension value during earthquake, should be below the allowable duration. This allowable duration is a function of the specific tension value.In this research, an innovative objective function was used to optimize the shape of concrete gravity dams by applying the new approach. This new objective function sets as one of the objective functions in multi objective method.A comparison between using this approach with multi objective and constrained optimization method in the rate of convergence reveals the advantage of employing the new objective function to find the optimal shape of concrete gravity dams under seismic loads. Copyright@ International Science Community Association