پديد آورنده :
بهرامي، سعيد
عنوان :
تعيين ضرايب تقويت ديناميكي ورق هاي ايزوتروپيك الاستيك مورب تحت بارهاي متحرك
مقطع تحصيلي :
كارشناسي ارشد
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده عمران
صفحه شمار :
نه،123ص: نمودار
يادداشت :
ص.ع. به: فارسي و انگليسي
استاد راهنما :
محمد مهدي سعادت پور
استاد مشاور :
مجتبي ازهري
توصيفگر ها :
پل مورب , روش نوار محدود
تاريخ نمايه سازي :
20/10/88
استاد داور :
مجتبي محزون، مرتضي مدح خوان
چكيده فارسي :
به فارسي و انگليسي: قابل رويت در نسخه ديجيتال
چكيده انگليسي :
Determination of Dynamic Magnification Factor in Skew Elastic Isotropic Plates Subjected to Moving Loads Saeed Bahrami Saeedbahrami1983@yahoo com 10 June 2009 Department of Civil Engineering Isfahan University of Technology Isfahan 84156 83111 IranDegree M Sc Language Farsi Supervisor Dr Mohamad Mehdi saadatpour mmsaadatpour@cc iut ac irAbstract In order to provide more safety for high speed vehicles entering in highwaybridges modern highways should be as aligned as possible with the overrun bridges This obligation results in construction more skew bridges all over the world In skewbridge the center line of the longitudinal deck elements are not perpendicular toabutment The angle between center line of the deck and the line normal to abutmentis called skew angle In the traditional bridge designing methods traffic loads are considered as staticloads which are increased by the application of dynamic allowance factor In currentstandards the dynamic allowance factor is only function of span length or first naturalfrequency of the bridge In this research dynamic response of a skew bridge underdynamic load using finite strip method based on Kirchhoff assumptions has beenstudied The bridge deck is modeled as a thin plate and also for dynamic loads threemodels Moving load moving mass and moving vehicle are taken into account Effects of skew angle natural frequency of the bridge span length loading speed velocity parameter loading model and load combinations on the response and thedynamic allowance factor of displacement and moment are studied The results showthat the dynamic allowance factor is not only the function of span length but also ithighly depends on velocity eccentricity loading model and geometric characteristicsof the bridge deck like skew angle Key WordsSkew bridge Finite strip method Dynamic allowance factor Moving load
استاد راهنما :
محمد مهدي سعادت پور
استاد مشاور :
مجتبي ازهري
استاد داور :
مجتبي محزون، مرتضي مدح خوان
