Innovative mechanical anchors for CFRP plates

用于 CFRP 板的创新机械锚栓

• 批准号: 516261-2017
• 负责人: AlMayah, Adil
• 金额: $ 1.09万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Idea to Innovation
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=618008
• 关键词: Innovative; mechanical; anchors; CFRP; plates

Fiber reinforced polymer (FRP) composite materials have gained popularity in a number of structuralengineering applications due to their high strength/weight ratio, non-corrosive nature, and excellent fatigueproperties. Among these applications is the use of FRP plates for repair, rehabilitation and design of concretestructures. However, the high strength of FRP materials has not been satisfactorily utilized due to significantchallenges associated with their attachment to structures attributed to their weakness in the lateral direction ofthe fiber axis despite their high strength in the longitudinal direction, preventing adequate anchorage to otherstructural components.Recently, a new wedge-type anchor for a carbon FRP (CFRP) plate has been developed at the University ofWaterloo that consists of an outer casing that support a wedge to grip the CFRP plate. The system is simple,reusable, easy to machine, and compact in size especially when compared to traditional anchor systems. Also,this patent pending technology enabled the utilization of full tensile strength of the CFRP plate. Furthermore,unlike other available epoxy based anchors, the system can be used instantaneously as it is self-seated andrequires no curing time for installation.Market assessment will be conducted by a private firm to help Waterloo research and commercialization groupto assess the opportunities, and challenges associated with commercializing this high potential technology.

纤维增强聚合物（FRP）复合材料由于其高强度/重量比、无腐蚀性和优异的疲劳性能而在许多结构工程应用中得到普及。在这些应用中，FRP板用于混凝土结构的修复、恢复和设计。然而，FRP材料的高强度尚未得到令人满意的利用，这是由于与它们附接到结构相关的重大挑战，这归因于尽管它们在纵向方向上具有高强度，但它们在纤维轴线的横向方向上较弱，从而阻止了对其他结构部件的充分锚固。滑铁卢大学已经开发了一种用于碳纤维增强塑料（CFRP）板的新型楔形锚，其包括支撑楔形件以夹紧CFRP板的外壳。该系统简单、可重复使用、易于加工，并且尺寸紧凑，尤其是与传统的锚系统相比。此外，这项正在申请专利的技术能够充分利用CFRP板的抗拉强度。此外，与其他可用的环氧基锚固件不同，该系统可以立即使用，因为它是自固定的，不需要固化时间进行安装。市场评估将由一家私人公司进行，以帮助滑铁卢研究和商业化小组评估商业化这一高潜力技术的机会和挑战。