SBS瀝青阻尼隔震墊性能研究*
杜志超1，田杰 2，錢國楨3，曾德民1
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（1 中國建筑標準設計研究院有限公司， 北京 100048； 2 北京工業(yè)大學建筑工程學院， 北京 100124；3 杭州天元建筑設計研究院有限公司， 杭州 311201）
［摘要］SBS瀝青阻尼隔震墊是由SBS改性瀝青防水卷材與鋼絲網(wǎng)交替疊置組合而成的。在BS隔震墊的基礎上改用SBS瀝青阻尼隔震墊進行了試驗研究。試驗結果表明，SBS瀝青阻尼隔震墊具有較高的承壓強度和很大的阻尼比，其水平剪切剛度隨著剪應變的增加而下降，具有明顯的軟化特性。同時，為考察新型隔震墊的隔震效果，運用有限元軟件ABAQUS對采用SBS瀝青阻尼隔震墊的隔震建筑物進行數(shù)值模擬分析。結果表明，隔震結構頂層的加速度響應減小了40%～50%。［關鍵詞］SBS瀝青阻尼隔震墊; 阻尼比; 水平等效剛度; 數(shù)值模擬中圖分類號：TU352.12 文獻標識碼：A 文章編號：1002-848X(2016)11-0102-05
Research on the performance of SBS asphaltum damping isolation padDu Zhichao1, Tian Jie 2, Qian Guozhen3, Zeng Demin1(1 China Building Standard Design & Research Institute Co., Ltd., Beijing 100048, China; 2 College of Architecture and Civil Engineering,Beijing University of Technology, Beijing 100124, China; 3 Hangzhou Tianyuan Architectural Design & Research Institute Co., Ltd., Hangzhou 311201, China)Abstract: SBS asphaltum damping isolation pad is composed of SBS modified asphalt waterproofing materials and steel mesh with a combination of superimposed alternately. The experiment study of SBS asphaltum damping isolation pads was carried out bases on the BS isolation pad. The experiment results show that SBS asphalt damping isolation pad has a high bearing strength and a great damping ratio, its level shearing stiffness decreased with the shear strain increasing, and it has significant softening properties. Meanwhile, for inspecting the isolation effect of SBS isolation pads, finite element software was used to carry out numerical modeling analysis for the building adopting SBS asphalt damping isolation pad. The results show that the acceleration response of top floor of the seismic isolation structure reduces 40%～50%.Keywords: SBS asphaltum damping isolation pad; damping ratio; level equivalent stiffness; numerical modeling
*國家“十二五”科技支撐計劃課題(2011BAJ08B05)。作者簡介：杜志超，碩士，工程師，Email：dzc_2006@126.com。
