Hybrid On-Line Experiments and Monitoring of Structural Systems

该项目旨在开发一种统一的在线实验方法，结合模拟来确定复杂结构系统的动态性能，例如具有砖石填充墙的钢筋混凝土建筑。该方法将在混合变量(诊断)伪动力(PSD)方法与子结构相结合的框架内发展。此外，先进的传感器(如光纤应变计和基于网格的压力传感器)用于分布式测量，以监测复杂的结构系统，是拟议的研究和教育项目的组成部分。在发展的诊断PSD测试方法期间，对结构响应的详细监测对于反馈控制是必不可少的。最终，该方法将使用由裸框架和由钢筋混凝土板连接的填充框架组成的通用混合体系的动态实验的基准数据来验证。PSD测试方法将同时应用于该通用混合体系的主要子结构，即柔性裸框架作为一个物理子结构，刚性填充框架作为另一个物理子结构，连接板作为模拟子结构。该项目的成功将推动大型结构的实验研究取得进展，并就使用和分布先进传感器监测复杂结构系统的动力响应提出建议。

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.