摘要
临沂某幼儿园采用钢筋混凝土框架结构,抗震设防烈度为8度(0.3g)。设计之初面临层间位移角超限、超筋等问题。采用黏滞阻尼器进行消能减震设计,分别采用ETABS和PERFORM-3D进行多遇地震作用下的弹性时程和罕遇地震作用下的弹塑性时程分析。分析结果表明:在地震作用下,阻尼器有良好的耗能能力,有效降低结构在地震作用下的动力响应,实现―小震不坏,大震不倒‖的抗震设防目标。该工程可为类似的框架结构消能减震设计提供参考。
A kindergarten building in Linyi adopts reinforced concrete frame structure,with seismic fortification intensity of 8 degrees(0.3 g).At the beginning of design,it faced with problems such as excessive displacement angle,over reinforcement and so on.The viscous damper was used for energy dissipation design,ETABS and PERFORM-3D were used to analyze the elastic time-history under frequent earthquakes and the elasto-plastic time-history under rare earthquakes.The results show that under earthquake action,the viscous damper has good energy dissipation capacity,effectively reduce the dynamic response of the structure under the earthquake action,achieve the seismic fortification target of"no damage in frequent earthquakes,no collapse in rare earthquakes".This project can provide reference for the energy dissipation design of similar frame structures.
作者
韩振林
李潇
HAN Zhenlin;LI Xiao(Shandong provincial Architectural Design&Research Institute Co.,Ltd.,Jinan 250001,China)
出处
《建筑结构》
CSCD
北大核心
2020年第S02期299-304,共6页
Building Structure
关键词
框架结构
黏滞阻尼器
消能减震设计
frame structure
viscous damper
energy dissipation design
