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SCIENCE AND TECHNOLOGY OF WEST CHINA
2013年
3期
24-26
,共3页
非全埋地下室%嵌固端%弹性时程分析
非全埋地下室%嵌固耑%彈性時程分析
비전매지하실%감고단%탄성시정분석
Semi-basement%Fixing%Elastic dynamic analysis
本文采用土弹簧的模型模拟回填土对于高层建筑地下室的约束,并运用有限元分析软件ETABS对带有全埋地下室的高层建筑与带有一面开敞的非全埋地下室的高层建筑进行弹性时程对比分析.研究得出,地下室外墙为结构底部提供较大侧移刚度,地下室四周土体对地下室的位移产生约束并抵消一部分水平地震力,两种对比模型的地下室顶板处位移均较小,地下室顶板可以作为嵌固端.
本文採用土彈簧的模型模擬迴填土對于高層建築地下室的約束,併運用有限元分析軟件ETABS對帶有全埋地下室的高層建築與帶有一麵開敞的非全埋地下室的高層建築進行彈性時程對比分析.研究得齣,地下室外牆為結構底部提供較大側移剛度,地下室四週土體對地下室的位移產生約束併牴消一部分水平地震力,兩種對比模型的地下室頂闆處位移均較小,地下室頂闆可以作為嵌固耑.
본문채용토탄황적모형모의회전토대우고층건축지하실적약속,병운용유한원분석연건ETABS대대유전매지하실적고층건축여대유일면개창적비전매지하실적고층건축진행탄성시정대비분석.연구득출,지하실외장위결구저부제공교대측이강도,지하실사주토체대지하실적위이산생약속병저소일부분수평지진력,량충대비모형적지하실정판처위이균교소,지하실정판가이작위감고단.
In this study,we simulated the constraint of backfill on the basements of tall-buildings based on the soil-spring model, and used ETABS to make elastic dynamic analysis of the tall buildings with all-buried basements,compared with those with one-side-open semi-basements.It was found that the wall of the basement provided large lateral stiffness to the structures,and the soil around the basement counteracted parts of the horizontal seismic force.Both models had small displacement at the roof of the basements,and the fixings can be positioned on the roof of the one-side-open semi-basement.
