摘 要
随着城市化进程的加快，高层建筑日益增多，其抗震性能直接关系到人民生命财产安全与社会稳定。传统的抗震设计方法在面对复杂多变的地震动输入和结构非线性响应时存在一定局限，亟需更加科学、系统的抗震性能评估体系。本文旨在系统梳理现有高层建筑结构抗震性能评估方法的基础上，提出一种融合性能目标导向与多指标综合评价的新思路。研究采用理论分析、数值模拟与试验验证相结合的方法，引入基于性能的抗震设计理念，构建包含强度、刚度、延性和耗能能力等多维度指标的评估框架，并通过典型高层结构案例进行验证分析。结果表明，该方法能够更全面地反映结构在不同地震烈度下的响应特征与破坏机制，评估结果具有良好的一致性与可操作性。本研究的创新点在于提出了动态权重分配机制，结合模糊综合评价法实现对各性能指标的合理权衡，提升了评估结果的科学性与适应性。研究成果为高层建筑抗震设计与安全性评估提供了新的技术路径，对推动抗震性能评估由“设防”向“性能可控”转变具有实际应用价值。
关键词：高层建筑抗震性能评估；动态权重分配机制；多指标综合评价；基于性能的抗震设计；模糊综合评价法
ABSTRACT
With the acceleration of urbanization, the number of high-rise buildings has been increasing rapidly, and their seismic performance directly affects people's lives, property safety, and social stability. Traditional seismic design methods face certain limitations when dealing with complex and variable ground motion inputs and structural nonlinear responses, necessitating a more scientific and systematic seismic performance evaluation system. Based on a systematic review of existing seismic performance evaluation methods for high-rise building structures, this study proposes a new approach that integrates performance ob jective orientation with multi-index comprehensive assessment. The research employs a combination of theoretical analysis, numerical simulation, and experimental verification. By introducing the concept of performance-based seismic design, an evaluation fr amework incorporating multi-dimensional indicators—including strength, stiffness, ductility, and energy dissipation capacity—is established and validated through case studies of typical high-rise structures. Results demonstrate that this method can more comprehensively reflect the response characteristics and failure mechanisms of structures under different seismic intensities, with the evaluation outcomes showing good consistency and operability. The innovation of this study lies in the proposal of a dynamic weight allocation mechanism, which, combined with the fuzzy comprehensive evaluation method, enables a reasonable trade-off among various performance indicators, thereby enhancing the scientific rigor and adaptability of the evaluation results. The findings provide a new technical pathway for seismic design and safety assessment of high-rise buildings and hold practical value in advancing seismic performance evaluation from "seismic fortification" to "performance controllability."
Keywords: Seismic Performance Evaluation Of High-Rise Buildings; Dynamic Weight Allocation Mechanism; Multi-Index Comprehensive Assessment; Performance-Based Seismic Design; Fuzzy Comprehensive Evaluation Method
目 录
摘 要 I
ABSTRACT II
引言 1
第1章 高层建筑抗震性能评估理论基础 2
1.1 抗震性能评估的基本概念 2
1.2 高层建筑结构体系特点分析 2
1.3 抗震性能等级划分标准 2
1.4 国内外抗震评估方法比较 3
1.5 评估方法选择的影响因素 3
第2章 基于静力推倒分析的抗震评估方法 5
2.1 静力推倒分析的基本原理 5
2.2 荷载模式与加载路径设计 5
2.3 性能点的确定方法 5
2.4 能力曲线与需求曲线对比 6
2.5 方法适用性与局限性分析 6
第3章 基于动力时程分析的抗震评估方法 8
3.1 动力时程分析的基本流程 8
3.2 地震动输入的选择原则 8
3.3 结构响应参数提取方法 8
3.4 多遇地震与罕遇地震下的评估差异 9
3.5 非线性建模关键技术问题 9
第4章 高层建筑抗震性能综合评估体系构建 11
4.1 多指标融合评估框架设计 11
4.2 结构损伤模型与量化方法 11
4.3 基于性能目标的评估标准设定 11
4.4 工程实例评估流程与结果分析 12
结论 13
参考文献 14
致 谢 15
