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随机激励下考虑SSI效应的TMD-结构控制参数优化设计
Optimal design of control parameters of TMD- structures with SSI effect under stochastic excitation
投稿时间:2017-07-29  修订日期:2017-09-22
DOI:
中文关键词:  可靠度  概率密度演化方法  SSI  TMD参数优化
英文关键词:Reliability  probability density evolution method  SSI  TMD parameter optimization
基金项目:创新研究群体科学基金
作者单位E-mail
孙永 云南大学建筑与规划学院 751537272@qq.com 
王宪杰 云南大学建筑与规划学院 476411265@qq.com 
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中文摘要:
      TMD是高层建筑结构抗震、抗风等减震控制的主要方法,结构体系频率和TMD参数的适配性对控制效果起着决定性作用。现有规范中忽略土对上部结构影响,使得TMD-结构振动控制与实际工程情况存在脱节。本文以结构的最大层间位移为控制指标,将优化算法与概率密度理论方法相结合,以十层混凝土框架TMD-结构参数优化为例,研究了SSI对TMD结构控制效果的影响,并实现了随机激励下TMD建筑结构参数优化设计。为TMD建筑结构最优化设计提供了新的思路和方法。
英文摘要:
      Tuned mass damper(TMD)is the main method for seismic and wind resistance control of high-rise buildings, and the compatibility between structure system frequency and TMD parameter plays a decisive role in the control effect. In the existing codes, the neglect of soil influence on the upper structure frequency has a disconnective impact on the vibration control of TMD- structure comparing to the actual engineering situation. In this paper, choosing the maximum inter storey displacement of structure as the control index and combining the optimization algorithm with the theory of probability density method, an example of TMD- structure parameter optimization of ten-layer concrete frame structure is presented to study the control effect of soil structure interaction (SSI) on the TMD-structure and achieve the optimal objective under random excitation, which provides a reference for the optimal design of TMD-building structures.
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