A High Capacity Dynamic Actuator for Large-Scale Experimental Testing Towards Seismic Resilience of Infrastructure Facilities

用于基础设施抗震能力大规模实验测试的大容量动态执行器

• 批准号: 440464-2013
• 负责人: Lignos, Dimitrios
• 金额: $ 8.85万
• 依托单位: McGill University
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments - Category 1 (<$150,000)
• 财政年份: 2012
• 资助国家: 加拿大
• 起止时间: 2012-01-01 至 2013-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=508887
• 关键词: Capacity; Dynamic; Actuator; Large; Scale

This proposal relates to the acquisition of a high capacity state-of-the-art dynamic actuator to support large-scale experimental testing activities of structural and non-structural components, as well as high performance devices implemented in critical infrastructure facilities. Large scale testing is essential in order to fully understand the dynamic behaviour of such members and their interaction with infrastructure facilities during earthquake loading. This is attributed to several issues related to scale effects in size, rate-of-loading and subsequent effects on cyclic deterioration in strength and stiffness of such members. The requested equipment will foster collaborations between national structures laboratories and will contribute to the successful completion of important experimental programs towards the development of coherent provisions for seismic and blast-resistant design in North America. In particular, the requested equipment will be utilized to (1) investigate the dynamic stability of steel buildings designed with wide flange columns in seismic regions; to (2) investigate the implementation of new high strength steel alloys in seismic design against structural collapse; to (3) facilitate the improved design of extended shear tab connections with combined shear and axial load actions for high rise buildings; (4) to develop state-of-the-art platforms that allow geographically distributed experiments by enabling simultaneous testing of multiple large-scale subassemblies of the same structure located in remote laboratories by using existing networking technology; (5) to improve the state-of-knowledge on the seismic performance of functional and operational components for critical infrastructure.

该提议涉及购置一个高容量最先进的动态致动器，以支持结构和非结构部件的大规模实验测试活动，以及在关键基础设施中安装的高性能装置。为了充分了解这些构件的动态行为及其在地震荷载作用下与基础设施的相互作用，大规模测试至关重要。这是由于几个问题有关的规模效应的大小，加载速率和随后的影响，循环退化的强度和刚度的这些成员。所要求的设备将促进国家结构实验室之间的合作，并将有助于成功完成重要的实验方案，以便为北美的抗震和防爆设计制定一致的规定。特别是，所要求的设备将用于（1）调查地震区设计有宽翼缘柱的钢建筑物的动态稳定性;（2）调查新的高强度钢合金在抗震设计中的应用，以防止结构倒塌;（3）促进高层建筑剪切和轴向荷载作用下延长剪切翼片连接的改进设计;（4）开发最先进的平台，通过利用现有的网络技术，能够同时测试位于远程实验室的同一结构的多个大规模地震;（5）提高关键基础设施的功能和操作部件的抗震性能的知识水平。