| 中信广场风场特性与结构响应实测研究 |
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| 引用本文： | 徐安,傅继阳,赵若红,吴玖荣.中信广场风场特性与结构响应实测研究[J].建筑结构学报,2009,30(1):115. |
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| 作者姓名： | 徐安 傅继阳 赵若红 吴玖荣 |
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| 作者单位： | 广州大学广州大学与淡江大学工程结构灾害与控制联合研究中心;温州大学建筑与土木工程学院; |
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| 基金项目： | 国家自然科学基金，广东省自然科学基金，广东省科技计划项目 |
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| 摘 要： | 利用超声风速仪和加速度传感器现场实测了中信广场在台风"达维"的作用过程中的风场特性、建筑物表面风压以及加速度响应时程,分析了平均风速、平均风向的变化历程,以及纵向、横向和竖向风速谱特性和加速度响应谱特性。结果表明,中信广场顶部的风速谱与von Karman谱较为接近,通过现场实测的加速度响应谱得到中信广场的固有频率比有限元模型的计算结果大32%,分析认为由于非结构构件参与工作,增加了结构刚度以及结构没有满负荷工作,结构的实际质量小于有限元分析中的计算质量。
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| 关 键 词： | 风致响应 高层建筑 功率谱 原型实测 |
| 收稿时间： | 2009-02-05 |
| 修稿时间： | 2009-02-05 |
Field measurements of boundary layer wind characteristics and wind effects on Citic Plaza Tower |
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| XU An,FU Jiyang,ZHAO Ruohong,WU Jiurong.Field measurements of boundary layer wind characteristics and wind effects on Citic Plaza Tower[J].Journal of Building Structures,2009,30(1):115. |
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| Authors: | XU An FU Jiyang ZHAO Ruohong WU Jiurong |
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| Affiliation: | 1.Guangzhou University-Tamkang University Joint Research Center for Engineering Structure Disaster Prevention and Control;Guangzhou University;Guangzhou 510006;China;2.College of Architecture and Civil Engineering;Wenzhou University;Wenzhou 325000;China |
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| Abstract: | Field measurements of Boundary Layer Wind Characteristics and wind effects on CITIC Plaza tower were carried out during the passage of Typhoon Damrey in 2005.Boundary layer wind Characteristics such as mean wind speed,mean wind direction,turbulence intensity,gust factor and power spectrum density of longitudinal and lateral wind speed and etc.are presented in this paper.Dynamic characteristics obtained from the field measurements of acceleration were compared with those calculated from the finite element mo... |
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| Keywords: | tall building wind-induced response full-scale measurement power spectrum density |
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