Stocahstic Approach to Human Structure Dynamic Interaction

人体结构动态相互作用的随机方法

• 批准号: GR/T03017/01
• 负责人: Aleksandar Pavic
• 金额: $ 34.59万
• 依托单位: University of Sheffield
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2006
• 资助国家: 英国
• 起止时间: 2006 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=GR%2FT03017%2F01
• 关键词: Stocahstic; Approach; Human; Structure; Dynamic

Human-structure dynamic interaction is defined not only as the influence of humans on the dynamic properties of structures they occupy, but also as forces which excite these structures. Both of these issues are becoming increasingly important for all slender civil engineering structures occupied and dynamically excited by humans, such as footbridges, long-span floors, grandstands and staircases. The problems are typically caused by excessive vibrations of such structures due to normal activities of their human occupants, such as walking, running and jumping. The excessive lateral vibrations of the infamous Millennium Bridge in London is the best known example of this problem. The human involvement in the problem the key source of considerable randomness in the following three key types of human-structure dynamic interaction: (1) human-induced dynamic actions on structures,(2) changes of structural dynamic properties due to the presence of humans, and (3) perceptions of structural vibration responses. Although the concept that we are all different is quite understandable, there has been almost no effort to articulate it within a common probability based theoretical, analysis and design framework of the kind which exists for other random excitations of civil engineering structures such as wind and earthquakes. The provision of this framework would enhance tremendously understanding of human-structure dynamic interaction and enable easier application of its various aspects in practice, including a development of more reliable design codes in civil structural engineering. The development of this novel framework is the key aim of this Fellowship.

人-结构动力相互作用不仅是指人对所处结构动力特性的影响，而且是指激励结构的力。这两个问题对于所有由人类占用和动态激励的细长土木工程结构，如人行桥，大跨度楼层，看台和楼梯变得越来越重要。这些问题通常是由这些结构由于其人类居住者的正常活动（例如行走、跑步和跳跃）而引起的过度振动引起的。伦敦臭名昭著的千禧桥的过度横向振动是这个问题的最著名的例子。人与结构动力相互作用的三种主要类型是：（1）人对结构的动力作用，（2）由于人的存在而引起的结构动力特性的变化，以及（3）对结构振动响应的感知。尽管我们都是不同的这一概念是可以理解的，但几乎没有人试图在土木工程结构的其他随机激励（如风和地震）的常见概率基础理论、分析和设计框架内阐明这一概念。该框架的提供将极大地增强对人-结构动态相互作用的理解，并使其各个方面在实践中更容易应用，包括在土木结构工程中开发更可靠的设计规范。这个新框架的发展是这个奖学金的主要目标。

项目成果

Probabilistic Assessment of Human Response to Footbridge Vibration

• DOI: 10.1260/0263-0923.28.4.255
• 发表时间: 2009-12
• 期刊: Journal of Low Frequency Noise, Vibration and Active Control
• 作者: S. Z̆ivanović;Aleksandar Pavia

Probabilistic Modeling of Walking Excitation for Building Floors

• DOI: 10.1061/(asce)cf.1943-5509.0000005
• 发表时间: 2009-05
• 期刊: Journal of Performance of Constructed Facilities
• 影响因子: 2.5
• 作者: S. Z̆ivanović;A. Pavic

Number of successive cycles necessary to achieve stability of selected ground reaction force variables during continuous jumping.

在连续跳跃期间实现所选地面反作用力变量的稳定性所需的连续循环数。

• 发表时间: 2009
• 期刊: Journal of sports science & medicine
• 影响因子: 3.2
• 作者: Racic V

Quantification of dynamic excitation potential of pedestrian population crossing footbridges (accepted, in press)

穿过人行天桥的行人动态激励潜力的量化（已接受，正在印刷中）

• 发表时间: 2009
• 期刊: Shock and Vibration
• 影响因子: 1.6
• 作者: S Zivanovic