Hybrid On-Line Experiments and Monitoring of Structural Systems

结构系统的混合在线实验和监测

• 批准号: 0116005
• 负责人: Khalid Mosalam
• 金额: $ 30.65万
• 依托单位: University of California-Berkeley
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-09-15 至 2006-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0116005&HistoricalAwards=false
• 关键词: Hybrid; Line; Experiments; Monitoring; Structural

The project aims towards developing a unified on-line experimental methodology combined with simulation to determine the dynamic performance of complex structural systems, such as reinforced concrete building with masonry infill walls. The methodology will be developed in the framework of mixed-variable (diakoptics) pseudodynamic (PSD) approach combined with substructuring. Moreover, advanced sensors (e.g. fiber optic strain gages and grid-based pressure sensors) for distributed measurements to monitor complex structural systems is an integral part of the proposed research and education project. The detailed monitoring of the structural response is essential for feedback control during the developed diakoptic PSD testing methodology. Ultimately, this methodology will be verified using benchmark data from dynamic experiments of a generic hybrid system consisting of bare frames and an infilled frame connected by a reinforced concrete slab. The PSD testing methodology will be simultaneously applied to the main substructures of this generic hybrid system, namely the flexible bare frame as one physical substructure and the stiff infilled frame as another physical substructure with the connecting slab as a simulated substructure. The success of the project will lead to advances in experimental research on large-scale structures and recommendations on use and distribution of advanced sensors to monitor the dynamic response of complex structural systems.

该项目旨在开发一种结合模拟的统一在线实验方法，以确定复杂结构系统的动态性能，例如带有砌体填充墙的钢筋混凝土建筑。 该方法将开发的框架内的混合变量（diakoptics）的伪动力学（PSD）方法结合子结构。 此外，用于分布式测量以监测复杂结构系统的先进传感器（例如光纤应变计和基于网格的压力传感器）是拟议研究和教育项目的一个组成部分。 在开发的分光PSD测试方法中，对结构响应的详细监测对于反馈控制是必不可少的。 最后，这种方法将被验证使用基准数据从一个通用的混合动力系统组成的裸框架和填充框架连接的钢筋混凝土板的动态实验。 PSD测试方法将同时应用于该通用混合系统的主要子结构，即作为一个物理子结构的柔性裸框架和作为另一个物理子结构的刚性填充框架，连接板作为模拟子结构。 该项目的成功将导致大型结构的实验研究取得进展，并建议使用和分配先进的传感器来监测复杂结构系统的动态响应。