Behaviour of Anchors for Lifting and Handling in Precast Concrete Elements

National Concrete Accessories（NCA）是一家世界领先的公司，专门生产用于混凝土加固行业的各种产品，包括用于处理和运输预制混凝土构件的起重插入件和锚定件。NCA为工程师、承包商和建筑师提供产品应用的设计指导和支持。最近出现的情况是，对新开发的锚固系统的特定失效模式和行为的理解还不够，特别是在独特的设计条件和不同的载荷分布下。确定这些锚系统在典型和独特的设计方案下的行为和失效机制将允许更准确的强度估计和更有效的设计。本研究旨在了解混凝土中钢锚杆的设计参数（如边缘距离、嵌入深度和荷载条件）如何影响其极限强度和失效模式。此外，这些锚系统的有限元建模将允许对其行为进行更深入的分析，并有助于锚强度模型和设计实例的开发。这些信息将直接影响并被加拿大从事预制构件设计和处理的执业工程师使用，并最终加强加拿大预制混凝土行业。

National Concrete Accessories (NCA) is a world leader that specializes in a variety of products used in theconcrete reinforcement industry, including lifting inserts and anchors used to handle and transport precastconcrete elements. NCA provides design guidance and support for applications of their products to practicingengineers, contractors, and architects. It has recently emerged that not enough is understood about the specificfailure modes and behaviour of newly developed anchoring systems, especially under unique design scenariosand varying load distributions. Determining the behaviour and failure mechanisms of these anchor systemsunder both typical and unique design scenarios would allow for more accurate strength estimations and moreefficient designs. This research aims to understand how the design parameters of steel anchor rods in concrete(e.g. edge distance, embedment depth, and loading conditions) effect their ultimate strength and mode offailure. In addition, finite element modelling of these anchor systems will allow for more in-depth analysis oftheir behaviour and assist in the development of anchor strength models and design examples. This informationwill directly impact and be used by practicing Canadian engineers engaged in the design and handling ofprecast elements and ultimately strengthen the Canadian precast concrete industry.