摘 要
随着城市化进程的加快和建筑高度的不断增加，钢结构建筑凭借其自身诸多优势得到广泛应用，但地震灾害对钢结构建筑造成的破坏不容忽视，深入研究其抗震性能并进行优化设计具有重要意义。本研究旨在系统分析钢结构建筑在地震作用下的受力特点、变形规律等抗震性能，基于此提出有效的优化设计方案。通过理论分析建立考虑几何非线性与材料非线性的有限元模型，模拟不同地震波输入下钢结构建筑的响应情况，同时结合实际震害调查结果，对比分析传统设计方法与优化设计方案下钢结构建筑的抗震性能差异。研究表明，优化后的钢结构建筑在地震作用下结构整体稳定性增强，层间位移角减小，关键构件损伤程度降低，抗震性能显著提升。创新点在于综合考虑多种因素构建更贴合实际的有限元模型，并提出从结构体系、构件细节等方面入手的优化策略，为提高钢结构建筑抗震能力提供新思路，对推动钢结构建筑在地震多发区的应用具有重要价值。
关键词：钢结构建筑抗震性能；有限元模型；优化设计；地震响应分析；层间位移角控制
Abstract
With the acceleration of urbanization and the continuous increase in building heights, steel structures have been widely adopted due to their numerous advantages. However, the damage caused by seismic disasters to steel structure buildings cannot be overlooked, making it crucial to conduct in-depth research on their seismic performance and implement optimized design. This study aims to systematically analyze the force characteristics and deformation patterns of steel structure buildings under seismic actions, and propose effective optimization design schemes based on these analyses. Through theoretical analysis, a finite element model considering geometric and material nonlinearities was established to simulate the response of steel structure buildings under different seismic wave inputs. Actual earthquake damage survey results were also incorporated to comparatively analyze the seismic performance differences between traditional design methods and the optimized design approach. The findings indicate that the optimized steel structure buildings exhibit enhanced overall structural stability, reduced story drift angles, and decreased damage levels in critical components, leading to significantly improved seismic performance. The innovation lies in constructing a more realistic finite element model by considering multiple factors and proposing optimization strategies from aspects such as structural systems and component details, providing new insights for enhancing the seismic capacity of steel structure buildings. This research holds significant value for promoting the application of steel structures in seismically active regions.
Keywords：Seismic Performance Of Steel Structures；Finite Element Model；Optimization Design；Earthquake Response Analysis；Interstory Displacement Angle Control
目 录
摘 要 I
Abstract II
引 言 1
第一章 钢结构建筑抗震性能概述 2
1.1 钢结构抗震设计原则 2
1.2 抗震性能评价指标体系 2
1.3 国内外研究现状分析 3
第二章 钢结构建筑抗震性能影响因素 5
2.1 结构体系对抗震性能的影响 5
2.2 材料特性与抗震性能关系 5
2.3 施工质量对性能的影响分析 6
第三章 钢结构建筑抗震性能分析方法 8
3.1 动力分析理论基础 8
3.2 数值模拟技术应用 8
3.3 实验测试与结果分析 9
第四章 钢结构建筑抗震优化设计策略 11
4.1 优化设计目标设定 11
4.2 关键节点优化设计 11
4.3 整体结构布局优化 12
结 论 14
参考文献 15
致 谢 16
