Partnership for Advancing Technologies in Housing: Advanced Replacements for Mechanical Fastners in Housing Construction for High Wind Zones

推进住房技术合作：高风区住房建设中机械紧固件的高级替代品

• 批准号: 0122124
• 负责人: Donatus Ohanehi
• 金额: $ 14.94万
• 依托单位: Virginia Polytechnic Institute and State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-09-15 至 2006-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0122124&HistoricalAwards=false
• 关键词: Partnership; Advancing; Technologies; Housing; Advanced

NSF PROPOSAL # 0122124, ADVANCED REPLACEMENTS FOR MECHANICAL FASTENERS IN HOUSING CONSTRUCTION FOR HIGH WIND ZONESABSTRACTAdhesives offer several design benefits over conventional mechanical fasteners including nails and rivets. The acrylic foam tape is a unique adhesive product that requires no curing and yet offers substantial property advantages for certain semi-structural applications. Virginia Tech proposes to implement an innovative assembly process in the construction industry through the development of materials, design, and application databases. The assembly process will be based on generic acrylic foam tapes and the test bed will be shear walls and diaphragms in light-frame construction for wind-critical areas, a very large market segment. The assembly process meets PATH (Partnership for Advancing Technology in Housing) goals of promoting housing affordability, durability, and wind-damage resistance. PATH's technical areas addressed are "advanced panel systems" and "whole-house and building process redesign."The fundamental research component of the project will generate material data with emphasis on tape durability. Numerical structural modeling and cyclic tests of the assemblies will provide a basis for showing the adequacy of the tape to resist the dynamic loads associated with high wind events. A design methodology will be developed to enable field engineers to recommend and direct successful tape applications on construction sites. Shear wall and diaphragm models will be constructed for testing and demonstration. Walls and diaphragms will be designed to take full advantage of load re-distribution capabilities, increased flexibility and damping, and improved fatigue resistance provided by the tapes. The advantages of the resilient foam tape in wind critical applications will be highlighted as meeting the PATH goal of improved disaster resistance. The application of the tape increases overall system stiffness, increases the resistance of the roof sheathing to wind uplift from hurricane loading, and tape sealing reduces water damage, the major property damage under hurricane conditions. In addition to simplifying the assembly/construction process, the design may offer enhanced performance including longer life, better appearance, reduced transportation costs, and environmentally friendly alternatives over the use of conventional fastening systems. Collaboration with the National Association of Home Builders (NAHB) through the PATH program will facilitate timely interactions with end users of technologies developed in the project and will speed up widespread adoption. A national homebuilder company will build a demonstration home if laboratory tests show feasibility. The output of the project will be materials, joint performance, and application data on a simple but innovative assembly process. The databases and demonstration models will be focused on specific applications for wind-critical areas but will be applicable to a broad range of advanced adhesive tapes for use in housing construction.

NSF提案# 0122124，大风区房屋建筑中机械紧固件的先进替代品粘合剂与传统机械紧固件（包括钉子和铆钉）相比，具有几个设计优势。 丙烯酸泡沫胶带是一种独特的粘合剂产品，不需要固化，但为某些半结构应用提供了实质性的性能优势。 弗吉尼亚理工大学建议通过开发材料、设计和应用数据库，在建筑行业实施创新的装配工艺。 组装过程将基于通用丙烯酸泡沫胶带，测试台将是风关键区域轻型框架建筑中的剪力墙和横隔板，这是一个非常大的细分市场。 组装过程符合PATH（促进住房技术发展伙伴关系）促进住房负担能力、耐用性和抗风力破坏的目标。 适宜卫生技术方案涉及的技术领域是“先进的面板系统”和“整个房屋和建筑过程的重新设计”。“该项目的基础研究部分将产生材料数据，重点是磁带的耐用性。 组件的数值结构建模和循环试验将为显示胶带抵抗与大风事件相关的动态载荷的充分性提供基础。 将开发一种设计方法，使现场工程师能够推荐和指导施工现场的成功胶带应用。 将建造剪力墙和地下连续墙模型进行测试和演示。 墙壁和横隔板的设计将充分利用负荷重新分配能力，增加灵活性和阻尼，并提高耐疲劳性提供的磁带。 弹性泡沫胶带在风力关键应用中的优势将被强调为满足PATH提高抗灾能力的目标。 胶带的应用增加了整个系统的刚度，增加了屋顶覆板对飓风荷载引起的风扬的抵抗力，并且胶带密封减少了水损害，这是飓风条件下的主要财产损害。 除了简化组装/构造过程之外，该设计还可以提供增强的性能，包括更长的寿命、更好的外观、降低的运输成本以及优于使用传统紧固系统的环境友好的替代方案。 通过PATH计划与全国住宅建筑商协会（NAHB）的合作将促进与项目中开发的技术的最终用户的及时互动，并将加快广泛采用。 如果实验室测试显示可行性，一家全国性的房屋建筑公司将建造一个示范房屋。 该项目的产出将是材料、接头性能和简单但创新的装配工艺的应用数据。 数据库和示范模型将侧重于风力关键地区的具体应用，但将适用于住房建设中使用的各种先进胶带。