Title	Study the Progressive Destruction of Concrete Buildings Considering the Exit from the Center of Rigidity in Seismic Behavior
Author	Mohammad Reza Ghomdoust, Mahmood Rabani Bidgoli
Citation	Vol. 25  No. 8  pp. 77-86
Keywords	Progressive destruction, seismic behavior, concrete buildings, shear walls, earthquake

Title	Dynamic Analysis of Stability and Liquefaction in Dams in Unsaturated Soil Mode
Author	Samad Nazari, Mahmoud Hassanlourad, Elham chavoshi, Ali Mirzaii
Citation	Vol. 26  No. 7  pp. 91-102
Keywords	Liquefaction, earth dams, San Fernando earthquake.