Standardization of embedded plates for steel-concrete connections in builinds

建筑物钢-混凝土连接预埋板的标准化

• 批准号: 530162-2018
• 负责人: Tomlinson, Douglas
• 金额: $ 1.38万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2021
• 资助国家: 加拿大
• 起止时间: 2021-01-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=719646
• 关键词: Standardization; embedded; plates; steel; concrete

In buildings, connections between concrete and steel members are commonly made using embedded plates, which consist of a steel plate with anchors (steel rods) cast into a concrete member. Steel fixtures can then be welded onto the plate to allow steel members (e.g., I-beams) to be connected to concrete. Although the strength of these plates is well described in design codes, how they are loaded is not. Embedded plates are designed differently from one project to the next, even within the same engineering firm, because engineers disagree on which forces they should be designed to resist. This leads to poor use of time and higher costs associated with designing plates in design offices, fabricating plates in steel shops, and installing plates on-site.This project aims to improve the cost-effectiveness of buildings by developing and validating new standardized plates that can be incorporated across many different projects, eliminating the redundant design and construction process typical of current practice. The proposed project includes computer simulations and testing of embedded plates subject to loading conditions experienced in typical Canadian buildings. The results will be summarized in a format that can be adapted for use in modern three-dimensional building design software. The study results will reduce the time spent designing, fabricating, and installing these plates. These outcomes will benefit all building project stakeholders, from design engineers who save time at the design phase, to steel fabricators who can more quickly fabricate standardized parts, to contractors who see decreased build times and fewer on-site conflicts, and owners who benefit from lower costs.

在建筑物中，混凝土构件和钢构件之间的连接通常使用嵌入式板，其由具有锚定件（钢棒）的钢板浇铸到混凝土构件中组成。然后可以将钢固定件焊接到板上以允许钢构件（例如，工字梁）与混凝土连接。尽管设计规范中对这些板的强度有很好的描述，但它们的加载方式却没有。嵌入式板的设计因项目而异，即使在同一家工程公司内也是如此，因为工程师们对它们应该抵抗哪些力的设计意见不一。这导致在设计办公室设计钢板、在钢铁车间制造钢板和现场安装钢板的时间利用率低下，成本增加。本项目旨在通过开发和验证新的标准化钢板来提高建筑物的成本效益，这些标准化钢板可以在许多不同的项目中使用，消除了当前实践中典型的冗余设计和施工过程。拟议的项目包括计算机模拟和测试的嵌入式板受到典型的加拿大建筑物的负载条件。结果将以一种可适用于现代三维建筑设计软件的格式进行总结。研究结果将减少设计，制造和安装这些板所花费的时间。这些成果将使所有建筑项目利益相关者受益，从在设计阶段节省时间的设计工程师，到可以更快地制造标准化部件的钢铁制造商，到缩短建造时间和减少现场冲突的承包商，以及从降低成本中受益的业主。