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，用于高风质的高风质固定剂的机械紧固件的高级替代品为包括指甲和铆钉在内的传统机械紧固件提供了几种设计优势。 丙烯酸泡沫胶带是一种独特的粘合剂产品，不需要固化，却为某些半结构应用提供了可观的特性优势。 弗吉尼亚理工大学建议通过开发材料，设计和应用数据库来实施建筑行业中的创新组装过程。 组装过程将基于通用的丙烯酸泡沫磁带，测试床将是针对风临界区域的剪切壁和隔膜，这是一个非常大的市场细分市场。 大会过程符合促进住房负担能力，耐用性和防风损伤的路径（用于进步的住房技术的伙伴关系）。 Path的技术领域涉及的“高级面板系统”和“整个房屋和建筑过程”重新设计。 组件的数值结构建模和循环测试将为磁带的适当性提供基础，以抵抗与大风事件相关的动态载荷。 将开发一种设计方法，以使现场工程师能够在施工站点推荐并指导成功的磁带应用。 剪切壁和隔膜模型将用于测试和演示。 墙壁和隔膜将被设计为充分利用负载重新分布功能，提高柔韧性和阻尼以及磁带提供的疲劳阻力。 弹性泡沫胶带在风临界应用中的优势将被强调，因为实现了改善灾难性的路径目标。 胶带的应用增加了整体系统的刚度，增加了屋顶护套从飓风装载中抬高的阻力，并且胶带密封可减少水损伤，这是飓风条件下的主要特性损害。 除了简化组装/施工过程外，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在使用常规固定系统方面对环保的替代方案。 通过路径计划与全国房屋建筑商协会（NAHB）的合作将有助于与项目中开发的技术的最终用户及时互动，并将加快广泛采用。 如果实验室测试显示可行性，则国家房屋建筑商公司将建造示范房屋。 该项目的输出将是简单但创新的组装过程的材料，联合性能和应用数据。 数据库和演示模型将集中于风临界区域的特定应用，但将适用于广泛的高级胶带，用于住房建设。