结构工程师
結構工程師
결구공정사
STRUCTURAL ENGINEERS
2014年
6期
104-108
,共5页
项潇潇%刘文光%吕春财%何文福
項瀟瀟%劉文光%呂春財%何文福
항소소%류문광%려춘재%하문복
黏滞阻尼墙%放大装置%地震响应
黏滯阻尼牆%放大裝置%地震響應
점체조니장%방대장치%지진향응
viscous damper%amplification device%seismic response
基于黏滞阻尼器的耗能原理,针对地震时阻尼器位移小的特点,提出一种可提高阻尼器耗能能力的位移放大装置,并在此基础上设计出一种黏滞阻尼墙。针对黏滞阻尼器力学模型,增设放大装置后,得到带放大系数的黏滞阻尼墙力学模型。以12层框架为例,利用有限元软件分析比较带放大装置的黏滞阻尼墙减震结构与常规阻尼器建筑结构的减震效率。在加速度、层间位移、层间剪力等地震响应的控制效果方面,基于文中提案采用放大装置的减震结构更为有效。
基于黏滯阻尼器的耗能原理,針對地震時阻尼器位移小的特點,提齣一種可提高阻尼器耗能能力的位移放大裝置,併在此基礎上設計齣一種黏滯阻尼牆。針對黏滯阻尼器力學模型,增設放大裝置後,得到帶放大繫數的黏滯阻尼牆力學模型。以12層框架為例,利用有限元軟件分析比較帶放大裝置的黏滯阻尼牆減震結構與常規阻尼器建築結構的減震效率。在加速度、層間位移、層間剪力等地震響應的控製效果方麵,基于文中提案採用放大裝置的減震結構更為有效。
기우점체조니기적모능원리,침대지진시조니기위이소적특점,제출일충가제고조니기모능능력적위이방대장치,병재차기출상설계출일충점체조니장。침대점체조니기역학모형,증설방대장치후,득도대방대계수적점체조니장역학모형。이12층광가위례,이용유한원연건분석비교대방대장치적점체조니장감진결구여상규조니기건축결구적감진효솔。재가속도、층간위이、층간전력등지진향응적공제효과방면,기우문중제안채용방대장치적감진결구경위유효。
A new viscous damper was proposed to improve energy dissipation abilitity in this paper.It was de-signed based on the viscous damper’s energy dissipation principle with the consideration of small displace-ments of traditional dampers.A displacement amplification device was added in this new viscous damper.Tak-ing the 12-story frame structure as an example,structural responses with the installation of normal dampers and the new viscous damper were obtained by using the finite element modeling.Results show that the accelera-tion,story drift and inter-story shears of the structure with new damper are reduced more significantly.