AMASS: Advanced Manufacturing for the Assembly of Structural Steel

AMASS：结构钢装配的先进制造

• 批准号: 1563115
• 负责人: Arturo Schultz
• 金额: $ 34.97万
• 依托单位: University of Minnesota-Twin Cities
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-07-01 至 2020-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1563115&HistoricalAwards=false
• 关键词: AMASS; Advanced; Manufacturing; Assembly; Structural

This research activity is the US component of a tri-partite collaboration between the US, Ireland, and Northern Ireland (UK) to investigate advanced manufacturing techniques in plasma and laser cutting for the creation of an entirely new class of interlocking steel connections that rely on neither welding nor bolting, both of which are time-consuming and expensive. To date, advanced manufacturing equipment has only been used to accelerate traditional processes for cutting sheet metal or other conventional fabrication activities. Such approaches have not capitalized on the equipment?s full potential, and this project will lay the groundwork to transform steel building construction by investigating the underlying science and engineering precepts to interlocking connections created from precise, volumetric cutting. Such connection system could radically transform how structural steel is fabricated, assembled, deconstructed, and reused. The class of interlocking connections represents the introduction of the first universal, structural steel connector system in more than one-half a century, and it will better engage advanced manufacturing into the US, Irish & UK construction industries. Moreover, it offers the potential for significant reuse of materials that are heavily imported. The activity offers an innovative outreach program with broad-based technical dissemination through webinars and workshops, and educational outreach for K-12 students by means of national-level, student competitions.The advanced manufacturing for the assembly of structure steel (AMASS) system enhances the integration between design, fabrication, installation and maintenance through building information modeling (BIM) platforms to implement advanced connections. Fully automated, precise, volumetric cutting of open steel sections introduces intellectual challenges regarding the load-transfer mechanisms and failure modes for interlocking connections. The research activity includes closing the knowledge gaps concerning the mechanics, load resistance, and design of steel systems with interlocking connections. Also multi-scale modeling will be applied to investigate the mechanics of interlocking connections including stress and strain concentrations, fracture potential and failure modes, and to optimize connection geometry through parameter studies. Physical data will be collected from full-scale tests of beams, columns and beam-column assemblages with interlocking connections to determine nominal capacities in flexure, shear and axial loading, as well as for appropriate combinations.

这项研究活动是美国，爱尔兰和北方尔兰（英国）之间三方合作的美国组成部分，旨在研究等离子和激光切割的先进制造技术，以创造一种全新的联锁钢连接，既不依赖焊接也不依赖螺栓连接，这两种连接既耗时又昂贵。到目前为止，先进的制造设备仅用于加速传统的金属板切割工艺或其他传统的制造活动。这样的方法有没有利用设备？该项目将通过调查潜在的科学和工程规则，以精确的体积切割创建互锁连接，为改造钢结构建筑奠定基础。这种连接系统可以从根本上改变结构钢的制造、组装、解构和再利用方式。联锁连接类代表了半个多世纪以来第一个通用的结构钢连接器系统的引入，它将更好地将先进制造业引入美国，爱尔兰和英国的建筑行业。此外，它提供了大量再利用大量进口材料的潜力。该活动提供了一个创新的推广计划，通过网络研讨会和研讨会进行广泛的技术传播，并通过国家级的学生竞赛为K-12学生提供教育推广。先进的钢结构装配制造（AMASS）系统通过建筑信息建模（BIM）平台加强了设计，制造，安装和维护之间的集成，以实现先进的连接。全自动、精确、立体切割开放式钢型材，在联锁连接的荷载传递机制和失效模式方面带来了智力挑战。研究活动包括填补有关机械，抗负荷和联锁连接钢系统设计的知识空白。此外，多尺度建模将被应用于研究联锁连接的力学，包括应力和应变集中，断裂潜力和失效模式，并通过参数研究优化连接几何形状。将从梁、柱和带联锁连接的梁柱组合的全尺寸试验中收集物理数据，以确定弯曲、剪切和轴向载荷以及适当组合的标称能力。