Quantification of variations in the dynamic characteristics of a tall structure based on the long-term wind response observation records

基于长期风响应观测记录的高层结构动力特性变化的量化

• 批准号: 23656159
• 负责人: KIKUCHI Masaru
• 金额: $ 2.5万
• 依托单位: Hokkaido University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23656159/
• 关键词: 振動制御; モニタリング; 制振装置; 風応答; 振動計測; 固有周期; 減衰定数; 機械力学; 建築構造; 制振; 風力

We conducted continuous observation of wind-inducted response of a tall tower, and quantified dynamic properties of the tower varied with climatic conditions. First, we built an observation system to monitor the wind-inducted vibration of the structure, and conducted the long-term continuous observation. The climatic data such as temperature, wind speed and earthquake information reported by JMA are also collected. Next, natural frequency and damping ratio of the tower are identified from the observation results. Finally, we quantified seasonal variation and aging of the dynamic properties of the tower using the observation data and the climatic conditions.

我们对高塔的风感应反应进行了连续观察，并且塔的量化动态特性随气候条件而变化。首先，我们建立了一个观察系统来监视结构的风电感振动，并进行了长期连续观察。还收集了JMA报告的气候数据，例如温度，风速和地震信息。接下来，从观察结果中确定了塔的固有频率和阻尼比。最后，我们使用观察数据和气候条件量化了塔的动态特性的季节性变化和老化。

项目成果

Dynamic Properties of a Tall Reinforced Concrete Tower with Tuned Liquid Dampers

带调谐液体阻尼器的高钢筋混凝土塔的动态特性

• 发表时间: 2012
• 作者: Ken Ishii;Masaru Kikuchi;Yoriko Suzuki
• 通讯作者: Yoriko Suzuki

Evaluation of Long-term Variation in Dynamic Properties of a Tall Reinforced Concrete Tower with Tuned Liquid Dampers

带调谐液体阻尼器的高层钢筋混凝土塔动态性能长期变化的评估

• 发表时间: 2013
• 作者: Ken Ishii;Masaru Kikuchi
• 通讯作者: Masaru Kikuchi