- 摘 要
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劉偉慶 王曙光 葛 衛(wèi) 曾 波
（南京工業(yè)大學(xué) 南京 210009）[提要] 宿遷市府苑小區(qū)綜合樓位于8度區(qū)，設(shè)計(jì)基本地震加速度值為0.30g, 為6層底部框架砌體結(jié)構(gòu)，平面早三折線形。工程采用基礎(chǔ)隔震技術(shù)進(jìn)行結(jié)構(gòu)設(shè)計(jì)，隔震層由橡膠隔震支座、滑移支座、粘滯消能器組成。對隔震體系空間模型的時程分析表明：采用基礎(chǔ)隔震措施可顯著降低上部結(jié)構(gòu)的地震作用；設(shè)置粘滯消能器能較好地解決降低上部結(jié)構(gòu)的地震作用和限制隔震層位移之間的矛盾，有效地消除結(jié)構(gòu)的扭轉(zhuǎn)效應(yīng)。
[關(guān)鍵詞] 基礎(chǔ)隔震 橡膠隔震支座 粘滯消能器 滑移支座 時程分析Fuyuan commerce building locates at Suqian City, where is a region of 8 degree of seismic fortification intensity ( basic design acceleration of ground motion is O.3g). The building is a 7-storeyed masonry structure with semi-basement, the 1st floor is RC frame-shear wall structure and the structure plan shape is abnormal.The base-isolated technique is used to design this building,its base-isolated layer consists of laminated rubber bearings,slip bearings and viscous dampers. From nonlinear space time-history analysis for the base-isolated system,we can draw some conclusions as follows: base isolation and energy-dissipation technique can greatly reduce the horizontal seismic action upon upper structure; viscous damper can be used to resolve the contradiction between reducing earthquake actions and limiting displacements of the isolated layer effectively; viscous damper can also effectively eliminate the structural torsion.
Keywords: base isolation; laminated rubber bearings; viscous damper; slip bearings; time-history analysis
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