海岸工程
海岸工程
해안공정
COASTAL ENGINEERING
2012年
3期
1-8
,共8页
姚涛%余建星%李志刚%乔晓国%马骏
姚濤%餘建星%李誌剛%喬曉國%馬駿
요도%여건성%리지강%교효국%마준
筒型基础%液化%地震%有限元
筒型基礎%液化%地震%有限元
통형기출%액화%지진%유한원
bucket foundation%liquefaction%seismic%FEM
使用了ANSYS软件对筒型基础进行地震分析,计算了砂土液化情况以及由此导致的承载力的损失,对比了在筒一土界面采用节点耦合和设置接触单元两种形式对该结果的影响,结果显示节点耦合形式既可以保证计算精度,也能提高计算效率。同时,分析了不同长细比筒型基础的砂土液化深度和承载力损失,结果显示较大的长细比有利于减少承载力损失。
使用瞭ANSYS軟件對筒型基礎進行地震分析,計算瞭砂土液化情況以及由此導緻的承載力的損失,對比瞭在筒一土界麵採用節點耦閤和設置接觸單元兩種形式對該結果的影響,結果顯示節點耦閤形式既可以保證計算精度,也能提高計算效率。同時,分析瞭不同長細比筒型基礎的砂土液化深度和承載力損失,結果顯示較大的長細比有利于減少承載力損失。
사용료ANSYS연건대통형기출진행지진분석,계산료사토액화정황이급유차도치적승재력적손실,대비료재통일토계면채용절점우합화설치접촉단원량충형식대해결과적영향,결과현시절점우합형식기가이보증계산정도,야능제고계산효솔。동시,분석료불동장세비통형기출적사토액화심도화승재력손실,결과현시교대적장세비유리우감소승재력손실。
The seismic analysis of bucket foundation is carried out by using ANSYS soft-ware, the sand liquefaction and the reduction of bearing capacity are calculated, and both setting-up a contact unit and using node coupling on the bucket soil interface are used in finite element model to compare the influences on the obtained results. It has been shown that the node coupling method can ensure the precision of calculation and improve the calculation efficiency. Furthermore, several bucket foundations with different slenderness are analyzed to obtain the depth of sand liquefaction and the reduction of bearing capacity, indicating that the more slender bucket foundations will benefit the bearing capacity.