地震激励下高层连体结构的振动响应分析+MATLAB程序
毕业论文关键词 地震激励 高层连体建筑 随机响应 复模态分析法
Title Response analysis of high-rise connecting structure vibration under earthquake
Abstract With the development of social science and technology innovation rapidly, building height is rising. This also makes the experts and scholars at homeland and abroad increasing gradually become interested in anti-seismic design of buildings. Connecting structure has gradually become a trend of architectural design. The theory about the response of conjoined structure under earthquake excitation is not mature, which is still lack of systematic research. This topic is based on the connected high-rise building structure, which is reasonably simplification and the calculation model is abstracted. Using the basic knowledge of mechanics list the differential equations of motion. To deduce the structure response under stationary random excitation, the complex modal analysis method is needed. At last, the conjugated complex exponential Kanai-Tajimi excitation spectrum model is needed. The main calculation by using the software of MATLAB to complete. After that let’s analyze the results. We do research about when the rigidity, damp and other mechanical parameters keep constant, the influence of the building, under changing the position of the connecting device. Lay the foundation for seismic response control of structure vibration device for further use of connection.
Keywords Connected high-rise building Seismic excitation Random response Complex modal analysis method
目录
1.绪论 . 1
1.1 课题提出 ... 1
1.2 高层连体结构的国内外应用和研究现状 ... 1
1.3 连体结构的特点 ... 2
1.4 本课题所用软件 ... 3
2.振动模型的建立 . 4
2.1 系统模型 .. 4
2.2 地震激励模型 ... 5
3.复模态分析法 . 6
3.1 复模态分析 ... 6
3.2 平稳随机激励响应特性 . 10
3.3 共轭复指数随机激励情形 . 12
4.算例分析 ... 13
4.1 运动微分方程 . 13
4.2 结果分析 . 18
4.2.1 算例赋值 .. 18
4.2.2等高楼层 ... 18
4.2.3不等高楼层 ... 22
5.MATLAB程序的实现 .. 24
结论 .. 26
致谢 .. 27
参考文献 .. 28
附：MATLAB部分主要程序 . 29