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, Tony
• 金额: $ 3.24万
• 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: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=697698
• 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.

无框系统是长跨度低层钢结构的解决方案，由工程的冷形式瓦楞纸板组成，从而消除了对额外的地震力抵抗系统的需求。瓦楞纸面板（例如墙壁，天花板和屋顶元素）是在现场制造的，运到现场并组装。这使得无框系统成为需要短时间勃起时间的商业和工业结构的最有效的解决方案之一。凭借这些优势，无框系统在加拿大和全球占有稳定的市场份额。目前，无框系统用于各种应用，例如工业，娱乐和商业用法。无框系统是加拿大最大的钢制建筑系统制造商Behlen Industries的产品。 Behlen拥有40多年的历史制造钢制建筑系统，并大力投资于工程技术，制造概念，结构改进和建筑质量。结果，当今的无框系统在成本，强度，功能和美学方面要好得多。通过这些创新，Behlen将无框系统提升到了更高的水平，并有助于定位加拿大和全球的长期增长和更大的接受。但是，存在一定差距，以确认将无框系统用作抗震力的系统的适用性。当前，无框系统的地震设计实践采用基于力的方法，其中无框系统被设计为常规结构。在以前的地震事件中没有无框系统的记录，也没有关于循环响应的测试数据。该研究建议旨在研究无框系统的地震性能。建议在不列颠哥伦比亚大学（UBC）结构工程实验室执行一种涉及全面实验和分析计划的强大方法。在这项研究中，将从材料级别到横截面级别进行系统检查，最终从元素和系统级别进行系统检查。一旦完成了实验和分析计划，将根据当前的加拿大代码开发针对无框系统的详细设计方法。因此，无框系统可以用作加拿大合格的地震力抵抗系统。这将确保在加拿大和世界各地的高地震地区使用更强大，经济和可靠的抗震力系统。