超高层建筑风压分布及风振响应分析
摘要
随着城市化进程的加速，超高层建筑已成为现代城市天际线的重要组成部分。然而，超高层建筑的高度与复杂结构使其对风荷载的敏感性显著增加，风压分布及风振响应成为结构设计中的关键问题。本文深入探讨了超高层建筑的风压分布特性及风振响应分析方法，旨在为提升超高层建筑的安全性与舒适性提供理论依据和技术支持。本文分析了超高层建筑风压分布的影响因素及分布规律。风压分布受建筑体型、高度、周边环境及来流风速等多种因素影响，呈现出复杂的非均匀性。通过风洞试验与数值模拟相结合的方法，本文详细研究了超高层建筑在不同风向角下的表面风压分布，揭示了建筑迎风面、侧面及背风面的风压变化特性，为结构风荷载的准确计算提供了数据支持。本文重点讨论了超高层建筑风振响应的分析方法。风振响应是超高层建筑在风荷载作用下产生的动态响应，包括位移、加速度和应力等。本文介绍了频域法和时域法两种主流的风振响应分析方法，并详细阐述了各自的优缺点及适用范围。同时，本文还结合具体工程案例，对超高层建筑进行了风振响应分析，评估了结构的动态性能与稳定性。本文总结了超高层建筑风压分布及风振响应分析的研究成果与应用前景。通过对风压分布特性的深入研究和风振响应分析方法的综合应用，本文为超高层建筑的结构设计提供了科学的依据和有效的手段。同时，本文也指出了当前研究中存在的不足与未来研究方向，强调了持续创新与技术进步对于推动超高层建筑抗风设计领域发展的重要性。
关键词：超高层建筑；风压分布；风振响应
Abstract
With the acceleration of urbanization, super high-rise buildings have become an important part of modern city skylines. However, the sensitivity of super tall buildings to wind load increases significantly due to their height and complex structure, and wind pressure distribution and wind vibration response become the key issues in structural design. In this paper, the wind pressure distribution characteristics and wind vibration response analysis methods of super tall buildings are deeply discussed in order to provide theoretical basis and technical support for improving the safety and comfort of super tall buildings. This paper analyzes the influencing factors and distribution rules of wind pressure distribution in super tall buildings. The distribution of wind pressure is affected by many factors such as building size, height, surrounding environment and incoming wind speed, and presents complex non-uniformity. Through the combination of wind tunnel test and numerical simulation, the surface wind pressure distribution of super tall buildings under different wind angles is studied in detail, and the wind pressure variation characteristics of windward, side and lee sides of buildings are revealed, which provides data support for the accurate calculation of structural wind loads. This paper focuses on the analysis method of wind vibration response of super tall buildings. Wind vibration response is the dynamic response of super tall buildings under wind load, including displacement, acceleration and stress. This paper introduces two main methods of wind vibration response analysis, frequency domain method and time domain method, and expounds their advantages, disadvantages and application range in detail. At the same time, this paper also analyzes the wind vibration response of the super tall building, and evaluates the dynamic performance and stability of the structure. This paper summarizes the research results and application prospect of wind pressure distribution and wind vibration response analysis of super tall buildings. Through the in-depth study of wind pressure distribution characteristics and the comprehensive application of wind vibration response analysis method, this paper provides a scientific basis and effective means for the structural design of super tall buildings. At the same time, this paper also points out the shortcomings of the current research and the future research direction, and emphasizes the importance of continuous innovation and technological progress in promoting the development of wind resistance design of super tall buildings.
Key words: Supertall buildings; Wind pressure distribution; Wind response
目录
一、绪论 4
1.1 研究背景 4
1.2 研究目的及意义 4
1.3 国内外研究现状 4
二、风洞试验与风压分布特性 5
2.1 风洞试验设计 5
2.1.1 试验设备与条件 5
2.1.2 试验模型与参数 5
2.2 风压分布测试结果 5
2.2.1 测试数据处理 5
2.2.2 风压分布特性分析 6
2.3 风洞试验的有效性与局限性 6
2.3.1 试验结果的可靠性 6
2.3.2 试验方法的适用范围 7
2.4 风压分布特性的应用 7
2.4.1 风压分布规律的应用 7
2.4.2 风压数据在设计中的应用 8
三、数值模拟与风振响应分析 8
3.1 数值模拟方法 8
3.1.1 计算流体动力学(CFD)方法 8
3.1.2 数值模拟软件的选择 9
3.2 风振响应模拟结果 9
3.2.1 模拟结果的准确性分析 9
3.2.2 风振响应的特性评估 10
3.3 数值模拟方法的评价 10
3.3.1 模拟方法的优势与局限 10
3.3.2 模拟结果的适用范围 10
3.4 风振响应控制策略 11
3.4.1 被动控制技术 11
3.4.2 主动与半主动控制技术 11
四、工程案例分析与验证 12
4.1 工程案例选择与描述 12
4.1.1 案例建筑的选取 12
4.1.2 建筑与环境特点 12
4.2 现场监测与数据分析 13
4.2.1 现场监测方案 13
4.2.2 监测数据的处理与分析 13
4.3 案例分析结果与讨论 13
4.3.1 风压分布的实证分析 13
4.3.2 风振响应的控制效果 14
4.4 案例分析对理论与方法的验证 14
4.4.1 理论与方法的实证验证 14
4.4.2 案例分析的推广应用 15
五、结论 15
参考文献 16
摘要
随着城市化进程的加速，超高层建筑已成为现代城市天际线的重要组成部分。然而，超高层建筑的高度与复杂结构使其对风荷载的敏感性显著增加，风压分布及风振响应成为结构设计中的关键问题。本文深入探讨了超高层建筑的风压分布特性及风振响应分析方法，旨在为提升超高层建筑的安全性与舒适性提供理论依据和技术支持。本文分析了超高层建筑风压分布的影响因素及分布规律。风压分布受建筑体型、高度、周边环境及来流风速等多种因素影响，呈现出复杂的非均匀性。通过风洞试验与数值模拟相结合的方法，本文详细研究了超高层建筑在不同风向角下的表面风压分布，揭示了建筑迎风面、侧面及背风面的风压变化特性，为结构风荷载的准确计算提供了数据支持。本文重点讨论了超高层建筑风振响应的分析方法。风振响应是超高层建筑在风荷载作用下产生的动态响应，包括位移、加速度和应力等。本文介绍了频域法和时域法两种主流的风振响应分析方法，并详细阐述了各自的优缺点及适用范围。同时，本文还结合具体工程案例，对超高层建筑进行了风振响应分析，评估了结构的动态性能与稳定性。本文总结了超高层建筑风压分布及风振响应分析的研究成果与应用前景。通过对风压分布特性的深入研究和风振响应分析方法的综合应用，本文为超高层建筑的结构设计提供了科学的依据和有效的手段。同时，本文也指出了当前研究中存在的不足与未来研究方向，强调了持续创新与技术进步对于推动超高层建筑抗风设计领域发展的重要性。
关键词：超高层建筑；风压分布；风振响应
Abstract
With the acceleration of urbanization, super high-rise buildings have become an important part of modern city skylines. However, the sensitivity of super tall buildings to wind load increases significantly due to their height and complex structure, and wind pressure distribution and wind vibration response become the key issues in structural design. In this paper, the wind pressure distribution characteristics and wind vibration response analysis methods of super tall buildings are deeply discussed in order to provide theoretical basis and technical support for improving the safety and comfort of super tall buildings. This paper analyzes the influencing factors and distribution rules of wind pressure distribution in super tall buildings. The distribution of wind pressure is affected by many factors such as building size, height, surrounding environment and incoming wind speed, and presents complex non-uniformity. Through the combination of wind tunnel test and numerical simulation, the surface wind pressure distribution of super tall buildings under different wind angles is studied in detail, and the wind pressure variation characteristics of windward, side and lee sides of buildings are revealed, which provides data support for the accurate calculation of structural wind loads. This paper focuses on the analysis method of wind vibration response of super tall buildings. Wind vibration response is the dynamic response of super tall buildings under wind load, including displacement, acceleration and stress. This paper introduces two main methods of wind vibration response analysis, frequency domain method and time domain method, and expounds their advantages, disadvantages and application range in detail. At the same time, this paper also analyzes the wind vibration response of the super tall building, and evaluates the dynamic performance and stability of the structure. This paper summarizes the research results and application prospect of wind pressure distribution and wind vibration response analysis of super tall buildings. Through the in-depth study of wind pressure distribution characteristics and the comprehensive application of wind vibration response analysis method, this paper provides a scientific basis and effective means for the structural design of super tall buildings. At the same time, this paper also points out the shortcomings of the current research and the future research direction, and emphasizes the importance of continuous innovation and technological progress in promoting the development of wind resistance design of super tall buildings.
Key words: Supertall buildings; Wind pressure distribution; Wind response
目录
一、绪论 4
1.1 研究背景 4
1.2 研究目的及意义 4
1.3 国内外研究现状 4
二、风洞试验与风压分布特性 5
2.1 风洞试验设计 5
2.1.1 试验设备与条件 5
2.1.2 试验模型与参数 5
2.2 风压分布测试结果 5
2.2.1 测试数据处理 5
2.2.2 风压分布特性分析 6
2.3 风洞试验的有效性与局限性 6
2.3.1 试验结果的可靠性 6
2.3.2 试验方法的适用范围 7
2.4 风压分布特性的应用 7
2.4.1 风压分布规律的应用 7
2.4.2 风压数据在设计中的应用 8
三、数值模拟与风振响应分析 8
3.1 数值模拟方法 8
3.1.1 计算流体动力学(CFD)方法 8
3.1.2 数值模拟软件的选择 9
3.2 风振响应模拟结果 9
3.2.1 模拟结果的准确性分析 9
3.2.2 风振响应的特性评估 10
3.3 数值模拟方法的评价 10
3.3.1 模拟方法的优势与局限 10
3.3.2 模拟结果的适用范围 10
3.4 风振响应控制策略 11
3.4.1 被动控制技术 11
3.4.2 主动与半主动控制技术 11
四、工程案例分析与验证 12
4.1 工程案例选择与描述 12
4.1.1 案例建筑的选取 12
4.1.2 建筑与环境特点 12
4.2 现场监测与数据分析 13
4.2.1 现场监测方案 13
4.2.2 监测数据的处理与分析 13
4.3 案例分析结果与讨论 13
4.3.1 风压分布的实证分析 13
4.3.2 风振响应的控制效果 14
4.4 案例分析对理论与方法的验证 14
4.4.1 理论与方法的实证验证 14
4.4.2 案例分析的推广应用 15
五、结论 15
参考文献 16
