昆明團(tuán)山幼兒園摩擦擺隔震體系結(jié)構(gòu)設(shè)計(jì)與計(jì)算分析*
雷豐成，陶忠，張龍飛，余文正，王林
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（昆明理工大學(xué)建筑工程學(xué)院， 昆明 650500）
［摘要］采用摩擦擺隔震體系對昆明團(tuán)山幼兒園3層鋼框架結(jié)構(gòu)進(jìn)行了基礎(chǔ)隔震設(shè)計(jì)。通過試驗(yàn)獲得了摩擦擺隔震支座的豎向剛度,利用SAP2000對結(jié)構(gòu)進(jìn)行了動力彈塑性分析。分析結(jié)果表明，在地震作用下，隔震結(jié)構(gòu)的層間位移角、層間剪力和樓面加速度響應(yīng)比非隔震結(jié)構(gòu)減小顯著；在罕遇地震下，隔震結(jié)構(gòu)僅出現(xiàn)少量梁鉸、未出現(xiàn)柱鉸，表明上部結(jié)構(gòu)基本處于彈性，減震效果顯著。［關(guān)鍵詞］基礎(chǔ)隔震; 摩擦擺; 有限元分析; SAP2000; 豎向剛度; 減震效果中圖分類號：TU352.12 文獻(xiàn)標(biāo)識碼：A 文章編號：1002-848X(2016)11-0060-06
Friction pendulum system structural design and analysis of Tuanshan kindergarten in KunmingLei Fengcheng, Tao Zhong, Zhang Longfei, Yu Wenzheng, Wang Lin(Department of Civil Engineering, Kunming University of Science and Technology, Kunming 650500, China)Abstract: Base isolation design for three story steel frame structure of Tuanshan kindergarten in Kunming was conducted by adopting friction pendulum system. The vertical stiffness of the friction pendulum isolator was obtained by experiment, and dynamic elastic-plastic analysis was carried out by SAP2000 software. The analytical results show that the responses of story drift, inter story shear force and floor acceleration in isolation structure was significantly reduced than which in non-isolation structure under earthquake action. Few beam hinges appear in isolation structure and without column hinges under rare earthquake action. It means that isolation structure is still in elastic state under rare earthquake and has a remarkable damping effect.Keywords: base isolation; friction pendulum; finite element analysis; SAP2000; vertical stiffness; damping effect
*國家科技支撐計(jì)劃（2013BAK13B00）。作者簡介：雷豐成，碩士研究生，Email:703143343@qq.com。
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