基于碳纤维材料的预应力混凝土结构自感知特性及其应用基础研究

项目名称： 基于碳纤维材料的预应力混凝土结构自感知特性及其应用基础研究

项目编号： No.51478209

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 建筑科学

项目作者： 刘荣桂

作者单位： 江苏大学

项目金额： 90万元

中文摘要： 碳纤维复合增强（CFRP）材料不仅具有轻质、高强、耐腐蚀等承载特性，还具有自感知功能等智能特性，利用这些特性研制具有自感知测试功能的预应力混凝土结构（简称PC结构）将是具有挑战性的课题，也是当前该领域研究的热点问题之一。本项目在申请人及团队已有相关研究成果的基础上，选择CFRP索PC结构为研究对象，开展相关结构的自感知测试系统的应用基础研究。主要内容有：研究具有自感知特性的碳纤维复合材料的制备工艺及参数选配方法；探索基于CFRP材料的智能传感器及相关PC结构自感知测试系统的研发途径与技术路线；通过实验研究与理论分析，研究碳纤维自感知复合材料与被测结构间的相互作用机制、模式识别理论与方法及自感知信号处理与分析技术等。重点开展碳纤维自感知复合材料的研发及相关PC结构测试系统的应用基础研究。预期其承载特性与智能特性结合的相关研究成果将为智能CFRP索预应力大跨结构研发设计提供理论与技术支撑。

中文关键词： 碳纤维复合材料；预应力混凝土结构；自感知；测试技术；模式识别

英文摘要： Carbon fiber composite reinforced materials not only have the load-bearing characteristics such as light weight, high strength and corrosion resistance, but also possess intelligence features such as self-sensing function. It will be a challenging task to develop pre-stressed concrete structures (referred to as the PC structures) with functions of self-sensing test by using these characteristics and it also will be one of the current emerging issues in the study in the field. Based on the research results acquired by the applicant and the team, the PC structure with CFRP cables is selected as the research object in this project, and the research about the application base of self-sensing testing system of the related structure is carried out. Main contents are: To study the preparation process and parameter matching method of carbon fiber composite materials with self-sensing properties; To explore the development methods and technology route based on smart sensors and self-sensing test function of related PC structure made from CFRP materials; To research the mechanisms of interaction between the self-sensing composite carbon fiber material and measured structure, pattern recognition theory and method, and the self-sensing signal processing and analysis technology through experimental study and theoretical analysis, etc. The focused study is the research and development of the carbon fiber self-sensing composite materials and the research about the application base of self-sensing testing system of the related structure. It is expected that the related research achievements combined with its load-bearing characteristics and intelligence features will provide theoretical and technical supports for the development and design of the smart CFRP pre-stressed long-span structures.

英文关键词： CFRP;pre-stressed concrete structure;self-sensing;testing technology;pattern recognition