2931

2651

كارشناسي ارشد

زلزله

اصفهان: دانشگاه صنعتي اصفهان، دانشكده عمران

1384

ده، 118، [II] ص.: مصور، جدول، شكل، نمودار

بيژن برومند

فرهاد بهنام فر

حميدهاشم الحسيني، محمد مهدي سعادت پور

1396/10/25

كتابنامه

عمران

مهندسي عمران

ID2651

به فارسي و انگليسي: قابل رويت در قسمت نسخه ديجيتالي

Abstract The dynamic interaction between soil and structures has nowadays been recognized asone of important factors in dynamic response of structures In study of such an interactioneffect the dynamic behavior of soil plays a prominent role 1 be soil is usually modeled asan unbounded domain with elastic behavior Although several numerical solutiontechnique can be found in literature a solution technique based on pure finite elementmethod without use of artificial boundary conditions is still of importance In this thesis a method based on pure FEM has been introduced for calculation ofimpedance functions of rigid footings on elastic half planes The method employs a sort ofdiscrete Green s function obtained in FEM sense The Green s function is evaluated byassuming that the infinite domain is discretized into infinite number of similar squareelements The repeatability of the mesh pattern helps that the solution of the Green sfunction be written in a spectral form through which the decay and radiation conditions aresatisfied Once the Green s functions are evaluated similar to boundary integral methods the finiteelement equations of the half space are written by superposition of the effects Unlike theboundary integral method there is no singularity in the solution and thus the superpositionis written with no difficulty Assembly of the relations with those of the footing eads to systemof equations for the whole domain from which i pedance functions of the footingare evaluated Several examples are solved to show the validity and accuracy of the formulation flproposed tI t f t if 1 J A rt 1I ltIi

بيژن برومند

فرهاد بهنام فر

حميدهاشم الحسيني، محمد مهدي سعادت پور