Precast Concrete Coupling Beams for RC Walls

RC 墙预制混凝土连梁

• 批准号: 0409114
• 负责人: Yahya Kurama
• 金额: --
• 依托单位: University of Notre Dame
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-08-01 至 2008-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0409114&HistoricalAwards=false
• 关键词: Precast; Concrete; Coupling; Beams; RC

The goal of this project is to develop a sustainable alternative to fiberglass load-bearing multi-purpose panels with novel cellular nano-biocomposites. Cellular nano-biocomposites. The cellular nano-biocomposite will be used to develop advanced panel components for multiple-use (i.e., housing floors, walls, roofs, bridge decks, RV panels) with tailorable integrated multi-functions (i.e., stiffness, strength, toughness, thermal insulation, fire protection, and user friendliness). The research objectives will be achieved through a fundamental study guided by four general tasks:I. Biobased Polyester Resin. Suitable biobased resin from a blend of petroleum-based polyester and functionalized soybean oil (~ 30 wt.%) is proposed to address both engineering and environmental requirements. II. Clay/Biobased Polyester Nanocomposite. The properties of biobased resin will be enhanced with nanoclay reinforcement dispersed via exfoliation. III. Nano-reinforced Polyester Biocomposite. The polymer nanocomposite will be additionally reinforced with "engineered" natural fibers. IV. Cellular Structural Material and Panel Systems. The specific properties of the nano-reinforced biocomposite will be further enhanced through the topological design of the material in cellular arrangements. The project is a multidisciplinary effort among the Departments of Civil and Environmental Engineering, Chemical Engineering and Materials Science, and Agriculture Economics. The research approach integrates the technical components of analysis, design and manufacturing with broad societal impact elements such as environment, economy, life-cycle analysis, energy, industrial collaboration, education integration, and outreach.The project will allow education and research training of two graduate and two undergraduatestudents. Research and education will be integrated in advanced composite materials courses across departments and through multidisciplinary student activities. A determined attempt will be made to recruit underrepresented students using university programs. We expect to create a break-through concept for a new generation of high-performance load-bearing components through fundamental research. The research will add considerable knowledge in the engineering of naturally reinforced nanocomposites, innovative structural design, and will create consciousness in designing value-added, eco-friendly and affordable materials and components for the 21-st century.

该项目的目标是开发一种可持续的替代玻璃纤维承重多用途面板与新型蜂窝纳米生物复合材料。细胞纳米生物复合材料。该细胞纳米生物复合材料将用于开发多用途的先进面板组件（即，房屋地板、墙壁、屋顶、桥面、RV面板），具有可定制的集成多功能（即，刚度、强度、韧性、隔热、防火和用户友好性）。研究目标将通过以下四个总任务指导下的基础研究来实现：一。生物基聚酯树脂。来自石油基聚酯和官能化大豆油（~ 30重量%）的共混物的合适的生物基树脂旨在满足工程和环境要求。二. 粘土/生物基聚酯纳米复合材料。通过剥离分散纳米粘土增强体将增强生物基树脂的性能。三. 纳米增强聚酯生物复合材料。该聚合物纳米复合材料将额外加强与“工程”天然纤维。四. 蜂窝结构材料和面板系统。纳米增强生物复合材料的特定性能将通过材料在细胞排列中的拓扑设计得到进一步增强。该项目是土木与环境工程系、化学工程与材料科学系以及农业经济系之间的多学科努力。该研究方法将分析、设计和制造的技术组成部分与广泛的社会影响因素相结合，如环境、经济、生命周期分析、能源、工业合作、教育一体化和推广。该项目将为两名研究生和两名本科生提供教育和研究培训。研究和教育将通过跨部门和多学科的学生活动集成在先进的复合材料课程。将作出坚定的努力，利用大学课程招收代表性不足的学生。我们希望通过基础研究为新一代高性能承载部件创造突破性的概念。这项研究将增加相当多的自然增强纳米复合材料的工程知识，创新的结构设计，并将创造意识，设计增值，环保和负担得起的材料和组件的21世纪世纪。