地震工程与工程振动
地震工程與工程振動
지진공정여공정진동
EARTHQUAKE ENGINEERING AND ENGINEERING VIBRATION
2000年
4期
126-132
,共7页
增层结构%摩擦垫层%阻尼器%地震反应%减振控制
增層結構%摩抆墊層%阻尼器%地震反應%減振控製
증층결구%마찰점층%조니기%지진반응%감진공제
floor increasing structure%friction bedding%damper%seismic response%vibration reduction control
本文提出了一种耗能减震加层结构新体系,即利用旧有建筑顶层与加层结构之间的摩擦垫层并依靠在两结构各层连接点处增设的耗能阻尼器来吸收耗散能量的减振体系。在进行非线性动力分析过程中,首次建立了系统的结构模型,引入了一种新的库仓摩擦力表达式并对影响体系减振率的有关参数进行了研究。最后通过对一实际工程的设汁和计算,验证了这种加层减振做法的有效性。
本文提齣瞭一種耗能減震加層結構新體繫,即利用舊有建築頂層與加層結構之間的摩抆墊層併依靠在兩結構各層連接點處增設的耗能阻尼器來吸收耗散能量的減振體繫。在進行非線性動力分析過程中,首次建立瞭繫統的結構模型,引入瞭一種新的庫倉摩抆力錶達式併對影響體繫減振率的有關參數進行瞭研究。最後通過對一實際工程的設汁和計算,驗證瞭這種加層減振做法的有效性。
본문제출료일충모능감진가층결구신체계,즉이용구유건축정층여가층결구지간적마찰점층병의고재량결구각층련접점처증설적모능조니기래흡수모산능량적감진체계。재진행비선성동력분석과정중,수차건립료계통적결구모형,인입료일충신적고창마찰력표체식병대영향체계감진솔적유관삼수진행료연구。최후통과대일실제공정적설즙화계산,험증료저충가층감진주법적유효성。
This paper presents a new type of energy dissipation floor-increasing structural system, which uses the friction bedding set between the outer floor-increasing structure and the top floor of the original building, as well as the energy dissipation dampers set between the connecting points on each lower floor. The structural model of this system and the new Coulomb friction representation are introduced into the nonlinear dynamic analysis. Special attention is also paid to the study of parameters which affect the decreasing rate. Finally, an existing engineering project, designed in this newly developed model, is presented to illustrate the effectiveness of the approach.