线性黏滞阻尼器在某超高层建筑中的应用
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(1 奥雅纳工程顾问，广州 510620；2 奥雅纳工程顾问，深圳 518048)［摘要］以大连某综合发展项目中超高层建筑T塔楼为工程背景，将速度型黏滞阻尼器设置于核心筒墙体悬挑出的伸臂和外框柱之间，利用两者之间的竖向变形差耗散振动能量。介绍了阻尼系数的确定方法和三种伸臂形式及伸臂端部和外框柱与阻尼器的连接节点大样。基于风洞实验室的风力时程数据对结构的加速度和层间位移角响应进行详细分析。结果表明，塔楼采用16个黏滞阻尼器之后，有效减小了10年回归期风荷载作用下结构顶部的加速度，其顶部舒适度可改善20%左右，成功达到预期效果。［关键词］黏滞阻尼器; 消能减振; 伸臂桁架; 环桁架; 阻尼系数中图分类号：TU973 文献标识码：A 文章编号：1002-848X(2014)24-0070-05Application of linear viscous dampers in a super high-rise buildingHou Shengli1, Wang Yang2, Kang Man2(1 Arup, Guangzhou 510620, China; 2 Arup, Shenzhen 518048, China)Abstract: Taking a super high-rise building T-tower of a comprehensive development project in Dalian as the engineering background, velocity-dependent viscous dampers were installed between frame columns and outriggers cantilevered from core walls to dissipate vibration energy by vertical deformation difference between columns and outriggers. Damping coefficient determination method was introduced as well as three outrigger forms and the connecting nodes among outrigger ends, frame columns and the dampers. Based on the wind time-history data from wind tunnel laboratory, the acceleration response and inter-layer displacement angle response of the structure were analyzed in detail. The results show that with usage of sixteen velocity-dependent viscous dampers in the tower building, the acceleration of the structure top is effectively reduced under the wind load of 10 years return period and the comfort degree of the building top can be improved by 20%, which successfully achieves the desired effect.Keywords: viscous damper; energy dissipation; outrigger truss; belt truss; damping coefficient作者简介：侯胜利，硕士，副总工程师，一级注册结构工程师，Email：sheng-li.hou@arup.com。参考文献［1］JGJ 3—2010 高层建筑混凝土结构技术规程［S］. 北京:中国建筑工业出版社,2011.［2］WILLFORD M, SMITH R, SCOTT D, et al. Viscous dampers come of age ［J］. Structure Magazine, 2008（6）:15-18.［3］方志, 王飞, 张志田，等. 粘滞阻尼器参数对大跨度桥梁抗震性能影响研究［J］. 公路交通科技，2009，26(2):73-78.［4］薛艳涛, 石树立, 李博. 消能减振阻尼器的结构设计［J］.建筑科学， 2003，19(3):19-21.［5］ROB J SMITH，MICHAEL R WILLFORD. The damped outrigger concept for tall buildings ［J］. The Structural Design of Tall and Special Buildings，2007, 16(4):501-517.［6］陈永祁, 曹铁柱, 马良喆. 液体粘滞阻尼器在超高层结构上抗震抗风效果和经济分析［J］.土木工程学报，2012，45(3):1-8.
