Soil-Structure Interaction Effects on Dynamic Behaviour of Transmission Line Towers

作     者：Abir Jendoubi Frédéric Legeron 

作者机构：Facultéde GénieUniversitéde SherbrookeQuébecJ1K 2R1Canada ParsonsAbu DhabiP.O.5498UAE 

出 版 物：《Computers, Materials & Continua》 (计算机、材料和连续体（英文）)

年 卷 期：2022年第70卷第1期

页      面：1461-1477页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：This work was financed by The Natural Sciences and Engineering Research Council of Canada(NSERC)and Hydro-Québec Transénergy(HQTE) 

主　　题：Tower shock loads non-linear dynamic soil-structure interaction 

摘      要：As inferred from earthquake engineering literature,considering soil structure interaction(SSI)effects is important in evaluating the response of transmission line towers(TLT)to dynamic loads such as impulse *** proposed study investigates the dynamic effects of SSI on TLT *** and non-linearmodels are *** the linearmodel,the soil is represented by complex impedances,dependent of dynamic frequency,determined from numerical *** nonlinearmodel considers the soil non-linear behavior in its material constitutive law and foundation uplift in a non-linear time history *** simplified structure behavior of a typical lattice transmission tower is *** analysis of frequency and time domain are followed through varying soil stiffness and damping *** different shock durations are *** soil-structure system with equivalent dynamic properties is *** behaviors achieved utilizing a rigid and a flexible base for the structures is compared to estimate the impact of taking SSI into account in the *** current mainstream approach in structural engineering,emphasizing the importance of the SSI effect,is illustrated using an example where the SSI effect could be detrimental to the ***,the non-linear analysis results are analyzed to show the linear approach’s limitations in the event of grand deformations.