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消能减震伸臂桁架在超高层结构中的风振控制研究

鲁正 何向东 吕西林

结构工程师2017,Vol.33Issue(2):34-40,7.
结构工程师2017,Vol.33Issue(2):34-40,7.

消能减震伸臂桁架在超高层结构中的风振控制研究

Wind-induced Vibration Control of Energy Dissipation Outrigger on a Super High-rise Building

鲁正 1何向东 2吕西林2

作者信息

  • 1. 同济大学土木工程防灾国家重点实验室,上海200092
  • 2. 同济大学结构工程与防灾研究所,上海200092
  • 折叠

摘要

Abstract

With the increasing height of buildings,the frame-central core tube-outrigger structure system is widely used in super-tall buildings.At the same time,it becomes more and more popular to employ multi-outriggers in taller and super high-rise buildings.However,because of the fact that the vibration period of these skyscrapers is close to that of the fluctuating wind,the acceleration of structure caused by wind generally exceeds the level of comfort regulated by the corresponding codes.Targeting on a super high-rise building with multi-outriggers,viscous dampers are installed between an outrigger at some height and the mega column,namely to adopt energy dissipation outrigger with viscous dampers,thus the overlarge wind-induced accelerations will be under control.Besides,the article will also focus on the effectiveness of the wind vibration control by viscous dampers installed in an outrigger at different levels.

关键词

消能减震/超高层/伸臂桁架/黏滞阻尼器/抗风/舒适度

Key words

energy dissipation/super high-rise building/outrigger/viscous damper/wind resistance/comfort level

引用本文复制引用

鲁正,何向东,吕西林..消能减震伸臂桁架在超高层结构中的风振控制研究[J].结构工程师,2017,33(2):34-40,7.

基金项目

国家自然科学基金(51478361),中央高校基本科研业务费专项资金项目 (51478361)

结构工程师

OA北大核心CSTPCD

1005-0159

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