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房 亮,康 慨
(現(xiàn)代設計集團上海建筑設計研究院有限公司,上海200041)[摘要] 采取增設消能支撐的方案對按“74”規(guī)范設計的上海某板柱結構體系的房屋進行抗震加固,就此進行了概括的介紹。設計時分別采取三條地震波輸入,計算在常遇地震和罕遇地震下結構的動力時程反應;并對支撐處的柱、節(jié)點進提出加崮設計方案。結果表明采用消能支撐抗震加固技術可以取得良好的加固效果。
[關鍵詞] 板柱結構;消能支撐;抗震加固Analysis and design of seismic strengthening of a slab-column structure in Shanghai with energy dissipation brace
Fang Liang, Kang Kai
( Xiandai Design Group Shanghai Institute of Architectural Design&Research Co., Ltd., Shanghai 200041, China)Abstract: A seismic strengthening method with energy dissipation brace of an existing slab-column structure in Shanghai designed according to the 74 Chinese code was introduced. Seismic response time-history analyses of the slab-column structure with energy dissipation brace were performed for 3 different earthquake time-history inputs, according to common and rare earthquake levels. And the seismic strengthening methods of columns and joints connecting the brace were presented. The results show the seismic strengthening measure with energy dissipation brace is effective.
Keywords: slab-column structure; energy dissipation brace; seisnuc strengthening