摘 要
超高层建筑作为现代城市化发展的标志性结构，其安全性与经济性受到风荷载和地震作用的显著影响，而两者之间的耦合效应尚未得到充分研究。本文旨在探讨风-地震耦合效应对超高层建筑结构动力响应的影响机制，通过建立考虑风场非平稳特性和地震多维输入的耦合分析模型，采用数值模拟与实验验证相结合的方法，对典型超高层建筑在不同工况下的动力响应进行系统分析。研究表明，风-地震耦合效应对结构加速度响应和位移响应具有显著影响，特别是在强风与近场地震叠加的情况下，结构可能出现超出设计预期的极端响应。本文提出了一种基于能量平衡原理的耦合效应评估方法，能够有效预测复杂环境下的结构响应特性。研究成果为超高层建筑设计提供了新的理论依据，并为提高结构抗灾能力提出了创新性的优化策略。关键词：超高层建筑; 风-地震耦合效应; 动力响应; 能量平衡原理; 抗灾能力优化
Abstract
Supertall buildings, as iconic structures of modern urbanization, are significantly influenced by wind loads and seismic actions in terms of safety and economy, while the coupling effect between these two factors remains underexplored. This study investigates the influence mechanism of wind-seismic coupling effects on the dynamic response of supertall building structures by establishing a coupled analysis model that considers the non-stationary characteristics of wind fields and multi-dimensional seismic inputs. A combination of numerical simulation and experimental validation is employed to systematically analyze the dynamic responses of typical supertall buildings under various conditions. The findings indicate that the wind-seismic coupling effect has a substantial impact on structural acceleration and displacement responses, particularly when strong winds coincide with near-field earthquakes, leading to extreme responses beyond design expectations. Furthermore, this paper proposes an evaluation method based on the principle of energy balance, which can effectively predict structural response characteristics under complex environmental conditions. The research outcomes provide new theoretical foundations for the design of supertall buildings and offer innovative optimization strategies to enhance structural resilience against disasters.Key words:Super-High-Rise Building; Wind-Earthquake Coupling Effect; Dynamic Response; Energy Balance Principle; Disaster-Resistance Optimization
目 录
中文摘要 I
英文摘要 II
引 言 1
第1章、风-地震耦合效应的基础理论 2
1.1、超高层建筑的动力特性分析 2
1.2、风荷载与地震作用的基本原理 2
1.3、耦合效应对结构响应的影响机制 3
第2章、风-地震耦合效应的数值模拟方法 4
2.1、数值模型的建立与验证 4
2.2、动力时程分析方法的应用 4
2.3、模拟结果的误差分析与优化 5
第3章、实际工程中的风-地震耦合效应研究 6
3.1、工程案例的背景与特点 6
3.2、耦合效应在实际结构中的表现形式 6
3.3、数据采集与现场测试技术 7
第4章、风-地震耦合效应的减震控制策略 8
4.1、减震装置的设计原则 8
4.2、主动与被动控制方法的比较 8
4.3、控制效果的评估与改进措施 8
结 论 10
参考文献 11
