Earthquake Analysis of 3-D Structures on Sliding Foundation Using Yield Equation of the Contact Surface

earthquake analysis of 3-d structures on sliding foundation using yield equation of the contact surface

a solution technique for the dynamic analysis of asymmetric base-isolated buildings, subject to earthquake ground motion, is presented. to develop the formulation, a yield surface as a function of both shear force and torsion moment of the sliding surface with rigid perfectly plastic behavior is constituted. to achieve the objective, the yield stress is defined by the friction coefficient throu...

Dynamic Analysis of Asymmetric Structures Supported by a Sliding Foundation

Dynamic Analysis of Asymmetric Structures Supported by a Sliding Foundation

the effect of using model essays on the develpment of writing proficiency of iranina pre-intermediate efl learners

abstract the present study was conducted to investigate the effect of using model essays on the development of writing proficiency of iranian pre-intermediate efl learners. to fulfill the purpose of the study, 55 pre- intermediate learners of parsa language institute were chosen by means of administering proficiency test. based on the results of the pretest, two matched groups, one as the expe...

the role of task-based techniques on the acquisition of english language structures by the intermediate efl students

this study examines the effetivenss of task-based activities in helping students learn english language structures for a better communication. initially, a michigan test was administered to the two groups of 52 students majoring in english at the allameh ghotb -e- ravandi university to ensure their homogeneity. the students scores on the grammar part of this test were also regarded as their pre...