[关键词]
[摘要]
为了解2020年混凝土桥及其高性能材料研究方向的发展动态,并在总结其研究内容、方法和成果的基础上更好地开展后续研究,从混凝土桥、高性能混凝土材料及高性能加劲筋材三方面着手,查阅了近期文献,并进行了分类、总结和评述。研究发现:目前,混凝土桥方向较为关注运维阶段的耐久性能、极端环境下的工作性能及混凝土桥运营事故等问题;高性能混凝土材料的研究进展在高性能、绿色环保以及智能化三个方面表现突出;高性能筋材则主要围绕强度更高、更耐久的FRP筋展开,其在梁、板、柱等构件上的应用得到了积极的探索。对现有研究的不足和有待深化的问题提出初步建议,期待与相关学者共同努力,为该方向的进一步发展做出贡献。
[Key word]
[Abstract]
In order to understand the development trend of the research direction of concrete bridge and high-performance materials in 2020, and on the basis of summarizing the research contents, methods and achievements, the follow-up research will be carried out better, this paper reviews the recent literatures from the three aspects of concrete bridges, high-performance concrete materials and high-performance reinforced materials. Furthermore, the literature are classified, summarized and commented. The results show that the current research on concrete bridges pays more attention to durability in the operation stage, working performance in extreme environments, and concrete bridge accidents. For high-performance concrete materials, great progress has been made in the three aspects of high performance, green environmental protection and intelligence. The related high-performance reinforced materials have been mainly focused on the FRP bars with higher strength and better durability. Its application in beams, slabs, columns and other components has been widely studied. Finally, the paper points out shortcomings of the existing research and the work to be done in the future.
[中图分类号]
[基金项目]
国家自然科学基金(51778531);