摘 要
随着城市化进程的加快，高层建筑的数量和高度不断增加，其抗风性能成为结构工程领域的重要研究课题。由于风荷载对高层建筑的安全性和舒适性具有显著影响，深入分析风荷载特性并优化抗风设计显得尤为关键。本研究旨在探讨高层建筑在复杂风场环境下的风荷载分布规律，并提出有效的抗风设计策略。研究采用数值模拟与风洞试验相结合的方法，基于计算流体力学（CFD）技术建立了高层建筑周围风场的三维模型，同时通过风洞试验验证了数值模拟结果的准确性。通过对不同建筑形态、高度及周边环境条件下的风压系数进行系统分析，揭示了建筑几何参数与风荷载之间的关系。研究进一步提出了基于响应控制的抗风优化设计方法，包括主动调谐质量阻尼器（TMD）和被动减振装置的应用方案。结果表明，合理的抗风设计能够显著降低结构的动力响应，提高建筑的抗风能力。本研究的创新点在于将数值模拟与实验研究有机结合，构建了适用于复杂环境条件下的风荷载预测模型，并提出了针对性强的抗风设计优化策略，为高层建筑设计提供了理论支持和技术指导，具有重要的工程应用价值。
关键词：高层建筑；风荷载分布；抗风设计
ABSTRACT
With the acceleration of urbanization, the number and height of high-rise buildings are continuously increasing, making their wind-resistant performance an important research topic in structural engineering. Given that wind loads significantly affect the safety and comfort of high-rise buildings, it is crucial to conduct in-depth analyses of wind load characteristics and optimize wind-resistant designs. This study investigates the distribution patterns of wind loads on high-rise buildings under complex wind field conditions and proposes effective wind-resistant design strategies. A combination of numerical simulation and wind tunnel testing was employed, with a three-dimensional model of the wind field around high-rise buildings established using computational fluid dynamics (CFD) technology. The accuracy of the numerical simulation results was further validated through wind tunnel experiments. Systematic analyses were conducted on pressure coefficients under different building shapes, heights, and surrounding environmental conditions, revealing the relationship between building geometric parameters and wind loads. Furthermore, this study proposed a wind-resistant optimization design method based on response control, including application schemes for active tuned mass dampers (TMD) and passive vibration reduction devices. The results indicate that rational wind-resistant design can substantially reduce structural dynamic responses and enhance the wind resistance of buildings. The innovation of this study lies in the organic integration of numerical simulation and experimental research, establishing a wind load prediction model applicable to complex environmental conditions and proposing targeted wind-resistant design optimization strategies. These findings provide theoretical support and technical guidance for high-rise building design, demonstrating significant engineering application value.
Keywords: High-Rise Building; Wind Load Distribution; Wind-Resistant Design
目 录
摘 要 I
ABSTRACT II
第1章 绪论 1
1.1 高层建筑风荷载分析的研究背景 1
1.2 高层建筑抗风设计的重要意义 1
1.3 国内外研究现状与发展趋势 1
1.4 本文研究方法与技术路线 2
第2章 风荷载特性分析 3
2.1 风场特性的理论基础 3
2.2 高层建筑周围风环境模拟 3
2.3 风压分布规律及其影响因素 4
2.4 动态风荷载的时域与频域分析 4
2.5 风致振动的基本原理 5
第3章 抗风设计关键问题研究 6
3.1 结构动力响应分析方法 6
3.2 抗风稳定性评估指标体系 6
3.3 风振舒适度控制标准与措施 7
3.4 风洞试验在抗风设计中的应用 7
3.5 数值仿真与实验结果对比分析 8
第4章 高层建筑抗风优化设计策略 9
4.1 结构形式对抗风性能的影响 9
4.2 主动与被动抗风减振技术 9
4.3 材料选择与抗风性能提升 10
4.4 风荷载作用下的抗震协同设计 10
4.5 典型工程案例分析与经验总结 11
结论 12
参考文献 13
致 谢 14
