Design and assessment of frameless system for seismic applications

抗震应用无框架系统的设计和评估

• 批准号: 529848-2018
• 负责人: Yang, TY
• 金额: $ 6.19万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=692313
• 关键词: Design; assessment; frameless; system; seismic

Frameless system is a solution for long-span low-rise steel structures that consists of engineered cold-formed steel corrugated panels, thus eliminating the need for additional seismic force resisting system. The corrugated panels (such as the wall, ceiling and roof elements) are fabricated off-site, shipped to site and assembled. This makes Frameless system one of the most efficient solutions for commercial and industrial constructions, where short erection time is required. With these advantages, Frameless system have gained steady market shares in Canada and worldwide. Frameless system is currently used for a variety of applications, such as industrial, recreational and commercial usages. Frameless system is a product of Behlen Industries, Canada's largest manufacturer of steel building systems. Behlen has over 40 years of history manufacturing steel building systems and investing heavily in engineering technology, fabrication concepts, structural improvements, and building quality. As a result, Frameless systems today are far better in terms of cost, strength, function, and aesthetics. Through these innovations, Behlen has moved the Frameless system to a higher level and help to position the long-term growth and greater acceptance in Canada and worldwide. However, there is a gap of knowledge to confirm the applicability of using Frameless system as a seismic force resisting system. Currently, the seismic design practice for the Frameless system uses a force-based approach, where Frameless system is designed as conventional construction. There are no registers of Frameless system in previous seismic events and no test data in terms of cyclic response. This research proposal is targeted to investigate the seismic performance of Frameless system. A robust methodology involving a thorough experimental and analytical program is proposed to be executed at the University of British Columbia (UBC) Structural Engineering Laboratory. In this research, the Frameless system will be systematically examined from the material level to cross section level, eventually from the element and system level. Once the experimental and analytical programs have been completed, detailed design methods for the Frameless system will be developed accordance with current Canadian codes. Hence, the Frameless system can be used as a pre-qualified seismic force resisting system in Canada. This will ensure a more robust, economical and reliable seismic force resisting system to be used in high seismic regions in Canada and worldwide.

无框架系统是一种适用于大跨度低层钢结构的解决方案，它由工程冷弯型钢波纹板组成，因此无需额外的抗震系统。波纹板（如墙壁、天花板和屋顶元件）在场外制造，运到现场并组装。这使得无框架系统成为商业和工业建筑中最有效的解决方案之一，需要较短的安装时间。凭借这些优势，无框系统在加拿大和世界范围内获得了稳定的市场份额。无框架系统目前用于各种应用，例如工业、娱乐和商业用途。无框架系统是加拿大最大的钢结构建筑系统制造商Behlen Industries的产品。Behlen拥有40多年的制造钢结构建筑系统的历史，并在工程技术，制造概念，结构改进和建筑质量方面投入巨资。因此，今天的无框系统在成本、强度、功能和美观方面都要好得多。通过这些创新，Behlen将无框系统提升到了一个更高的水平，并帮助其在加拿大和世界范围内实现长期增长和更大的接受度。然而，有一个知识的差距，以确认使用无框架系统作为抗震系统的适用性。目前，无框架体系的抗震设计实践使用基于力的方法，其中无框架体系被设计为常规结构。在以往的地震事件中没有无框架系统的记录，也没有循环响应方面的测试数据。本研究旨在探讨无框架结构体系的抗震性能。一个强大的方法，涉及一个彻底的实验和分析程序，建议在不列颠哥伦比亚省（UBC）结构工程实验室执行。本研究将从材料层次到截面层次，再到单元和系统层次，对无框架体系进行系统的研究。一旦实验和分析程序完成，将根据现行加拿大规范制定无框架系统的详细设计方法。因此，在加拿大，无框架系统可以作为一个预先合格的抗震系统。这将确保在加拿大和世界各地的高地震地区使用更坚固、经济和可靠的抗震系统。