4890

4594

كارشناسي ارشد

سازه

اصفهان: دانشگاه صنعتي اصفهان، دانشكده عمران

1388

ده، 154ص: جدول،نمودار

ص.ع. به: فارسي و انگليسي

فرهاد بهنام فر

15/10/88

امير مهدي حلبيان، عليرضا شهيدي

مهندسي عمران

ID4594

به فارسي و انگليسي: قابل رويت در نسخه ديجيتال

Analysis of Underground Train Induced Structure Vibrations Amir Moghtaderi Esfahani moghtaderi@cv iut ac ir 23 June 2009 Department of Civil Engeenering Isfahan University of Technology Isfahan 84156 83111 IranDegree M Sc Language Farsi Supervisor Dr Farhad Behnamfar farhad@cc iut ac irAbstractDuring the last decades the railway traffic in densely populated areas has increased At thesame time passenger trains have become faster and freight trains have become heavier As aconsequence of this trains are an increasing source to ground vibration which may be anuisance to people buildings and sensitive equipment in the surrounding environment In thisresearch a two dimensional dynamic system including underground train sleeper rail pad tunnel soil and adjacent structure in the time domain and using SAP2000 software based onlinear time history dynamic analysis will be analyzed The purpose is parametric study abouteffective factors on peak response of structure acceleration velocity and displacement Among various factors the effect of this factors train velocity soil property natural period ofstructure and height of tunnel will be investigated Train movement will be modeled by aseries of moving load Set of ballast rail pad sleeper and tunnel will be modeled withappropriate elements Surrounding soil and 2 dimentional structure on the ground modeledwith plane strain element and frame element respectively Behavior of the system is assumedlinear elastic The result of linear time history dynamic analysis is recognition of effectivefactors in responses The conclusions are soil properties and train velocity are more effectiveand complicated in contrast with natural period of structure and height of tunnel Key Wordsvibration soil structure system metro finite element method

فرهاد بهنام فر

امير مهدي حلبيان، عليرضا شهيدي