Numerical investigation of the effects of soil-structure and granular material-structure interaction on the seismic response of a flat-bottom reinforced concrete silo  

作　　者：Sonia Benkhellat Mohammed Kadri Abdelghani Seghir 

机构地区：[1]Laboratory of Solid Mechanics and Systems,University of M’Hamed Bougara,Boumerdes 35000,Algeria [2]Laboratory of Geomaterials,Environment and Development,University of M’Hamed Bougara,Boumerdes 35000,Algeria [3]Research Laboratory of Applied Hydraulics and Environment,Faculty of Technology,University of Bejaia,Bejaia 06000,Algeria

出　　处：《Earthquake Engineering and Engineering Vibration》2024年第3期609-623,共15页地震工程与工程振动（英文刊）

摘　　要：In this work,a numerical study of the effects of soil-structure interaction(SSI)and granular material-structure interaction(GSI)on the nonlinear response and seismic capacity of flat-bottomed storage silos is conducted.A series of incremental dynamic analyses(IDA)are performed on a case of large reinforced concrete silo using 10 seismic recordings.The IDA results are given by two average IDA capacity curves,which are represented,as well as the seismic capacity of the studied structure,with and without a consideration of the SSI while accounting for the effect of GSI.These curves are used to quantify and evaluate the damage of the studied silo by utilizing two damage indices,one based on dissipated energy and the other on displacement and dissipated energy.The cumulative energy dissipation curves obtained by the average IDA capacity curves with and without SSI are presented as a function of the base shear,and these curves allow one to obtain the two critical points and the different limit states of the structure.It is observed that the SSI and GSI significantly influence the seismic response and capacity of the studied structure,particularly at higher levels of PGA.Moreover,the effect of the SSI reduces the damage index of the studied structure by 4%.

关 键 词：reinforced concrete silo perfectly matched layers soil-structure interaction granular material-structure interaction effective seismic input method damage index 

分 类 号：TU375[建筑科学—结构工程]