广西大学学报(自然科学版)
廣西大學學報(自然科學版)
엄서대학학보(자연과학판)
JOURNAL OF GUANGXI UNIVERSITY (NATURAL SCIENCE EDITION)
2013年
4期
785-794
,共10页
李创第%陈欧阳%葛新广%邹万杰
李創第%陳歐暘%葛新廣%鄒萬傑
리창제%진구양%갈신엄%추만걸
隔震结构%非经典阻尼%近似实空间解耦%反应谱%地震作用
隔震結構%非經典阻尼%近似實空間解耦%反應譜%地震作用
격진결구%비경전조니%근사실공간해우%반응보%지진작용
isolated structures%non-classical damping%approximate decoupling in real spaces%re-sponse spectrum%earthquake action calculation
为研究多层非经典阻尼隔震结构响应及其地震作用取值,首先建立了多层隔震结构响应近似实空间解耦分析法,并基于随机振动理论将结构位移随机响应方差解析分解为系列标准振子的位移与速度随机响应方差的线性组合;然后利用系列标准振子最大响应与反应谱的对应关系,建立了多层隔震结构基于抗震规范加速度反应谱的位移最大响应及其等效静态地震作用取值的近似解析分析法,并给出算例。采用本文方法计算的结构位移时程分析、位移响应方差和层间剪力设计值的最大误差分别仅为0.3928%、0.0206%和0.0799%,结果表明该方法简便实用,精度较高,可用于工程实际。
為研究多層非經典阻尼隔震結構響應及其地震作用取值,首先建立瞭多層隔震結構響應近似實空間解耦分析法,併基于隨機振動理論將結構位移隨機響應方差解析分解為繫列標準振子的位移與速度隨機響應方差的線性組閤;然後利用繫列標準振子最大響應與反應譜的對應關繫,建立瞭多層隔震結構基于抗震規範加速度反應譜的位移最大響應及其等效靜態地震作用取值的近似解析分析法,併給齣算例。採用本文方法計算的結構位移時程分析、位移響應方差和層間剪力設計值的最大誤差分彆僅為0.3928%、0.0206%和0.0799%,結果錶明該方法簡便實用,精度較高,可用于工程實際。
위연구다층비경전조니격진결구향응급기지진작용취치,수선건립료다층격진결구향응근사실공간해우분석법,병기우수궤진동이론장결구위이수궤향응방차해석분해위계렬표준진자적위이여속도수궤향응방차적선성조합;연후이용계렬표준진자최대향응여반응보적대응관계,건립료다층격진결구기우항진규범가속도반응보적위이최대향응급기등효정태지진작용취치적근사해석분석법,병급출산례。채용본문방법계산적결구위이시정분석、위이향응방차화층간전력설계치적최대오차분별부위0.3928%、0.0206%화0.0799%,결과표명해방법간편실용,정도교고,가용우공정실제。
In order to study the seismic response of multistory isolated non-classical damping struc-tures, the response equations with damping and symmetric mass matrix were established by the method of approximate decouping in real spaces .Then, by the random vibration theory , the mean-square values of structural displacement random response are decomposed to a linear combination of mean-square values of displacement and velocity random response of serial standard oscillators .Last-ly, according to the relationship between the maximum displacement response of serial standard oscillators and response spectrum , the analytic solution of maximum displacement response and earthquake action of the isolated structures based on response spectrum are obtained .The proposed method was used to calculate the displacement time history , the mean-square value of displacement response and the design value of interlaminar shear force , the maximum errors of which are only 0.392 8%, 0.020 6%and 0.079 9%, respectively .The result shows that this method is simple , practical , and accurate .