【作者】 杨峰；

【导师】 蔡敏；

【作者基本信息】 合肥工业大学 ， 水利工程， 2005， 硕士

【摘要】 非金属纤维增强塑料是本世纪后半期迅速发展起来的新型工程材料材,应用前景十分广阔。它是以非金属纤维(如玻璃纤维、芳纶纤维以及碳纤维等)作为增强材料,以树脂(如环氧树脂、不饱和聚脂树脂以及乙烯基树脂等)作为基体的复合材料。增强纤维为主要受力成分;树脂是将纤维粘成整体,它即能使纤维整体受力,又能保护纤维免受机械破损或化学腐蚀。利用这种材料来取代钢筋以及在预应力混凝土结构中的应用研究工作,国外已进行了将近五十年,并已取得了许多阶段成果;国内也开展了一些探讨。文中工作主要是围绕预应力玻璃纤维增强塑料混凝土小梁进行的,代替钢筋的材料是哈尔滨玻璃钢研究所生产的玻璃钢筋棒。作了玻璃钢筋棒的力学、物理性能、耐腐蚀性等材料性质的试验研究;根据研究结论试制了以取代钢筋的预应力混凝土小梁,在试验室内对这种梁的受力状态作了试验研究和理论分析,为实际工程中试验梁的使用以及新材料的应用积累了有用的资料和经验。更多还原

【Abstract】 As a modern engineering material quickly developed in the latter half of the 20th century, non-metallic Fiber Reinforced Plastic Concrete is renowned for its wide applications. It is a kind of complex material, in which the non-metallic fiber, such as fiber glass, aramid fiber and carbon fiber is reinforcement while resin, such as epoxy resin, unsaturated polyester resin and vinyl resin, matrix. Fortifying fiber is the major component against stress whereas resin glues the fiber into an organic whole, which not only enables the fiber to sustain pressure together but also prevents the fiber from mechanic breakage or chemical corrosion. Researchers abroad have already achieved quite a lot in their research into this material as a substitute for reinforcing steel bar as well as its applications in the prestressed concrete structure, which started nearly 50 years ago. In China, some researchers have also made some explorations into these issues. This study, with the fiberglass reinforced plastic produced by Ha’ erbin GRP Institute being used to replace reinforcing steel bar, focuses on the prestressed fiberglass reinforced plastic concrete beam series of experiments are first carried out to test the material behavior of GRP, including its mechanical and physical properties, and corrosion resistance. Then, based on the results, prestressed concrete beam is trial produced as a substitute for reinforcing steel bar. Finally experimental investigations and theoretical analyses are made to check the strained condition of this beam . The study is expected to be useful and helpful in such aspects as the use of test beam in real projects and the applications of new materials.更多还原