工程抗震与加固改造
工程抗震與加固改造
공정항진여가고개조
EARTHQUAKE RESISTANT ENGINEERING AND RETROFITTING
2009年
4期
81-86,104
,共7页
摩擦阻尼器%消能支撑%加层结构%快速非线性分析方法%结构设计参数
摩抆阻尼器%消能支撐%加層結構%快速非線性分析方法%結構設計參數
마찰조니기%소능지탱%가층결구%쾌속비선성분석방법%결구설계삼수
friction damper%friction energy-dissipation brace%storey-adding structure%fast nonlinear analysis method%structure design parameter
介绍了8度区某办公楼采用外套框架和原结构间设置摩擦消能装置的加层设计方案,阐述了摩擦阻尼消能支撑外套框架加层的设计参数确定及设计步骤,给出了地震反应的分析方法和分析结果.分析结果表明,在外套框架和原结构之间增设摩擦消能支撑,外套框架加层结构在地震作用下的位移响应减小,在多遇、罕遇水平地震作用下,能分别满足变形要求,尤其大幅减小了外套框架柱的剪力值,为框架柱的优化设计提供了较大空间,同时也减小了对原结构抗震性能的影响.
介紹瞭8度區某辦公樓採用外套框架和原結構間設置摩抆消能裝置的加層設計方案,闡述瞭摩抆阻尼消能支撐外套框架加層的設計參數確定及設計步驟,給齣瞭地震反應的分析方法和分析結果.分析結果錶明,在外套框架和原結構之間增設摩抆消能支撐,外套框架加層結構在地震作用下的位移響應減小,在多遇、罕遇水平地震作用下,能分彆滿足變形要求,尤其大幅減小瞭外套框架柱的剪力值,為框架柱的優化設計提供瞭較大空間,同時也減小瞭對原結構抗震性能的影響.
개소료8도구모판공루채용외투광가화원결구간설치마찰소능장치적가층설계방안,천술료마찰조니소능지탱외투광가가층적설계삼수학정급설계보취,급출료지진반응적분석방법화분석결과.분석결과표명,재외투광가화원결구지간증설마찰소능지탱,외투광가가층결구재지진작용하적위이향응감소,재다우、한우수평지진작용하,능분별만족변형요구,우기대폭감소료외투광가주적전력치,위광가주적우화설계제공료교대공간,동시야감소료대원결구항진성능적영향.
The design scheme of a storey-adding structure spanning existing building with frame using friction energy-dissipation braces dissipated energy for seismic intensity zone 8 is briefly outlined. The seismic structure design parameters and procedures of the friction energy -dissipated-brace are illustrated. The analysis method for earthquake responses together with the analysis results is presented. The results indicate that the friction energy-dissipation devices effectively control displacement response. Moreover, the deformation of the structure can satisfy the requirements of the seismic cede under the horizontal motions of frequently or occasionally earthquakes. Especially, it is found that shear forces in frame column and in old building are significantly decreased, which makes optimal structural design possible.
