竹筋混凝土性能及其开发应用

Properties and Development and Application of Bamboo Reinforced Concrete

摘要: 采用文献计量和文献综述的研究方法，对国内竹筋混凝土性能和开发应用的研究成果进行了全方面的梳理，回顾了国内竹筋混凝土性能的研究和开发应用的历史过程及历史背景。通过详尽细致地统计分析表明我国竹筋混凝土性能研究缘于为了节能减排、降低材料的消耗和能耗，节约项目经费，降低工程成本，充分高效利用竹及其竹制品的优良特性；研究表明：表面经过凹凸刻痕处理的竹筋与混凝土的黏结性能不是很差，较之钢筋与混凝土的黏结差距不是很大；竹芯竹筋混凝土抗弯性能略高于素混凝土，远低于钢筋混凝土；在对混凝土结构的抗弯要求不高的情况下，竹筋可以代替钢筋用于混凝土工程中，可按普通钢筋的抗拉强度的三分之一来换算，但只能用于非重要和关键的构件；竹纤维可以提高混凝土强度。基于这些特性，竹筋混凝土可以且主要用于：低强度要求的路面工程、低抗弯要求的滩涂围填工程中的桩柱工程、土建非承重墙板构件、承载压弯要求很低的简易梁楼板构件、需抗震隔热隔音的非受力的墙板构件及其他非主要受力构件。文章最后指出了研究存在的问题和不足，也指明了后期努力方向。

Abstract: By means of literature metrology and literature review, the research results of bamboo reinforced concrete properties and development and applications in China were reviewed, and the historical process and background of the research, development and application of bamboo reinforced concrete properties in China were reviewed. The detailed statistical analysis shows that the research of bamboo reinforced concrete performance in China is due to energy saving, reducing material consumption and energy consumption, saving project funds, reducing project costs, and making full and efficient use of bamboo and its bamboo products. The results show that the bonding performance of bamboo bar with concrete is not very bad, and the difference between the bonding performance of steel bar and concrete is not very big. The flexural performance of bamboo-reinforced concrete with bamboo core is slightly higher than that of plain concrete and much lower than that of reinforced concrete. When the flexural requirement of concrete structure is not high, bamboo reinforcement can be used instead of steel reinforcement in concrete engineering. It can be converted according to one third of the tensile strength of ordinary steel reinforcement, but it can only be used for non-important and critical components. Bamboo fiber can improve the strength of concrete. Based on these characteristics, bamboo reinforced concrete can be mainly used for: pavement engineering with low strength requirements, pile engineering in beach enclosure filling engineering with low bending requirements, civil non-load-bearing wallboard members, simple beam floor members with low load-bearing bending requirements, non-stressed wallboard members requiring seismic insulation and sound insulation, and other non-major stressed members. At last, the paper points out the existing problems and shortcomings of the research, and also points out the direction of later efforts.