BFRP筋连续配筋复合式路面材料粘结滑移特性和施工技术

发布时间：2018-06-27 22:41

本文选题：玄武岩纤维筋 + 粘结滑移　；参考：《浙江大学》2014年硕士论文

【摘要】：玄武岩纤维筋连续配筋复合式路面是指用玄武岩纤维筋代替钢筋形成连续配筋混凝土层,并加铺一定厚度的沥青罩面层形成的一种刚柔并济的新型长寿命复合式路面。论文依托国家交通运输部交通科技科技项目《玄武岩纤维筋连续配筋混凝土复合式长寿命路面研究》,开展玄武岩纤维筋复合式路面玄武岩纤维筋试验及施工技术等研究。论文基于混凝土结构及水泥混凝土路面等试验方法标准及国内外相关内容的研究,自行设计玄武岩纤维筋与混凝土粘结滑移性能试验,观察玄武岩纤维筋不同于普通带肋钢筋在混凝土中特殊的粘结破坏现象,确定玄武岩纤维筋与混凝土的实际粘结滑移关系曲线,获得玄武岩纤维筋与混凝土之间的粘结滑移规律,为该类型路面分析提供技术依据。通过试验并结合其他相关试验研究成果基础上,将玄武岩纤维筋粘结滑移本构理论模型与试验曲线进行对比,模型曲线与试验曲线吻合良好。采用有限元软件Abaqus,建立玄武岩纤维筋与混凝土粘结滑移有限元分析模型,包括单元类型和材料参数的选择以及对两种材料之间粘结滑移有限元分析的处理。对玄武岩纤维筋中心拉拔试验进行了Abaqus模拟及求解,验证该有限元模型的可行性。本文结合项目依托工程试验路段,针对该类型路面与普通钢筋混凝土连续配筋复合式路面的差异性,进行施工工艺比较和分析,提出玄武岩纤维筋连续配筋复合式路面结构的试验路段设计方案。本文的研究工作得到国家交通运输部交通建设科技项目(2011318825780)资助。
[Abstract]:The basalt fiber reinforced continuous reinforced composite pavement is a new kind of long-life composite pavement which is formed by replacing the reinforcement with basalt fiber reinforcement to form a continuous reinforced concrete layer with a certain thickness of asphalt overlay. In this paper, the basalt fiber reinforced concrete composite long-life pavement is studied based on the Ministry of Communications and Transportation project "basalt fiber reinforced continuous reinforced concrete long-life pavement", and the basalt fiber reinforced composite pavement basalt fiber reinforcement test and construction technology are carried out. Based on the research of concrete structure, cement concrete pavement and other test methods and related contents at home and abroad, this paper designs the bond-slip performance test of basalt fiber reinforcement and concrete. The special bond failure phenomenon of basalt fiber reinforcement in concrete is observed, and the actual bond-slip relationship curve between basalt fiber reinforcement and concrete is determined. The bond-slip law between basalt fiber reinforcement and concrete is obtained, which provides the technical basis for the analysis of this type of pavement. The bond-slip constitutive model of basalt fiber reinforcement is compared with the experimental curve on the basis of experiment and other related experimental results. The model curve is in good agreement with the experimental curve. The finite element analysis model of bond slip between basalt fiber tendons and concrete is established by using the finite element software Abaqus. including the selection of element types and material parameters and the treatment of bond-slip finite element analysis between the two materials. The Abaqus simulation and solution of the central drawing test of basalt fiber tendons are carried out to verify the feasibility of the finite element model. According to the difference between this type of pavement and the common reinforced concrete continuous reinforced concrete composite pavement, the construction technology is compared and analyzed. This paper puts forward the design scheme of the test section of basalt fiber reinforced continuous reinforced composite pavement structure. The research work of this paper is supported by the National Ministry of Transportation Science and Technology Project of Traffic Construction (20113 188 25780).
【学位授予单位】：浙江大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U414;U416.2

【参考文献】