3-D Simulation Study on Seismic Response of Bridge Piles in Landslide

查看全文 作　　者：Hou [1]Chaoping;Liu [2,3]Qi

机构地区：[1]College of Architecture and Urban-Rural Planning, Sichuan Agricultural University;[2]School of Civil Engineering, Southwest Jiaotong University;[3]Key Laboratory of High Speed Railway Engineering, Ministry of Education

出　　处：《Earthquake Research in China》索引2018年第32卷第3期,共10页

基　　金：the Railways Research andDevelopment Project of the Ministry of Railways of the Peoples Republic of China(Grant No.Z2012-061) 摘　　要：The anti-slide support structure is widely used in the anti-seismic reinforcement of bridge foundations,but related experimental research was processing slowly. Based on the prototype of the Jiuzhaigou bridge at the Chengdu-Lanzhou Railway,a 3-D simulation model was established on the basis of the shaking table model test,and the rationality of the dynamic analysis model was verified by indicators such as the bending moment of the bridge piles,peak soil pressure,and PGA amplification factors. The results show that the inertia force of the bridge pier has an important influence on the deformation of the pile foundation. The bending moment and shearing force are larger in lateral bridge piles,and the maximum value is near the pile top. The PGA amplification factor is stronger in the back of the rear anti-slide piles and so is it in front of the bridge pier,and the soil is prone to slip and damage. The bedrock is rigid and the dynamic response is maintained at a low level. The anti-slide piles in the rear row play a major role in the anti-seismic reinforcement design,and the anti-slide piles in the front row can be used as an auxiliary support structure. 关键词：Anti-slide PILE PIER FOUNDATION SHAKING TABLE test 3-D simulation Earthquake response

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3-D Simulation Study on Seismic Response of Bridge Piles in Landslide

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