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钢筋与钢纤维混凝土的黏结性能研究进展

慕儒,  王倩,  杨书杰,  陈向上,  张磊,  卿龙邦

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文章导航 > 工业建筑  > 2024 >  54(3): 206-214
慕儒, 王倩, 杨书杰, 陈向上, 张磊, 卿龙邦. 钢筋与钢纤维混凝土的黏结性能研究进展[J]. 工业建筑, 2024, 54(3): 206-214. doi: 10.3724/j.gyjzG23060210
引用本文: 慕儒, 王倩, 杨书杰, 陈向上, 张磊, 卿龙邦. 钢筋与钢纤维混凝土的黏结性能研究进展[J]. 工业建筑, 2024, 54(3): 206-214. doi: 10.3724/j.gyjzG23060210
shu
MU Ru, WANG Qian, YANG Shujie, CHEN Xiangshang, ZHANG Lei, QING Longbang. Research Progress on Bonding Performance Between Rebars and Steel Fiber Reinforced Concrete[J]. INDUSTRIAL CONSTRUCTION, 2024, 54(3): 206-214. doi: 10.3724/j.gyjzG23060210
Citation: MU Ru, WANG Qian, YANG Shujie, CHEN Xiangshang, ZHANG Lei, QING Longbang. Research Progress on Bonding Performance Between Rebars and Steel Fiber Reinforced Concrete[J]. INDUSTRIAL CONSTRUCTION, 2024, 54(3): 206-214. doi: 10.3724/j.gyjzG23060210
shu

钢筋与钢纤维混凝土的黏结性能研究进展

doi: 10.3724/j.gyjzG23060210

  • 1. 河北工业大学土木与交通学院, 天津 300401;

  • 2. 河北省廊坊市霸州羽洲混凝土有限公司, 河北廊坊 065000;

  • 3. 河北省高速公路京雄筹建处, 河北保定 071000

基金项目: 

国家自然科学基金项目（52078180， 52178199）；河北省交通运输厅科技项目（JX-202018）。

详细信息
    作者简介:

    慕儒，男， 1971年出生，博士，教授级高级工程师，博士生导师，主要从事纤维混凝土、超高性能混凝土、混凝土耐久性等的研究。电子信箱： ru_mu@hotmail.com

Research Progress on Bonding Performance Between Rebars and Steel Fiber Reinforced Concrete

  • 1. School of Civil and Transportation Engineering, Hebei University of Technology, Tianjin 300401, China;

  • 2. Hebei Langfang Bazhou Yuzhou Concrete Co., Ltd., Langfang 065000, China;

  • 3. Hebei Expressway Jingxiong Planning and Construction Office, Baoding 071000, China

摘要

    摘要
  • 摘要: 钢筋与混凝土间良好的黏结性能是钢筋混凝土构件正常工作的基础，对结构性能有显著影响。在混凝土中掺入钢纤维会显著提高混凝土的抗裂性和抗拉性能，从而可有效改善钢筋与混凝土的黏结性能。论述归纳了钢筋与钢纤维混凝土（SFRC）的黏结性能研究现状，包括黏结机理、黏结强度、黏结滑移模型三个方面。首先，通过黏结力组成、黏结破坏模式及钢纤维增强机理阐明了钢筋与SFRC间的黏结机理；其次，分析了不同中心拉拔试件和试验装置测试结果对结构设计的适用性，总结了钢筋与SFRC的黏结强度测试方法和影响因素，除了钢筋类型、混凝土强度、横向钢筋约束等因素，掺加钢纤维对黏结性能有重要影响；然后，归纳分析了黏结强度计算模型及黏结滑移本构关系，比较分析了各模型的适用性和优缺点；最后，建议了提高钢筋与SFRC黏结性能的方法。
    Abstract: The good bonding performance between rebars and concrete is the basis for the normal operation of reinforced concrete members and has a significant impact on the structural performance. The incorporation of steel fibers into concrete significantly improves the crack-resistant and tensile properties of concrete, thereby effectively improving the bonding properties between rebars and concrete. The research status of bonding performance between rebars and steel fiber reinforced concrete (SFRC) was summarized, including three aspects: bonding mechanism, bonding strength, and bond-slip models. Firstly, the bonding mechanism between rebars and SFRC was elucidated through the bonding force composition, bonding failure modes and steel fiber reinforcement mechanism; secondly, the applicability of the test results of different central pull-out specimens and test devices to the design of the structure were summarized, and the bonding strength test methods and influencing factors were analyzed, in addition to the types of rebars, concrete strength, transverse reinforcement restraint and other factors, the addition of steel fibers had an important influence on the bonding performance; then, the bonding strength calculation model and bond-slip constitutive relations were summarized and analyzed, and the applicability, advantages and disadvantages of each model were compared and analyzed. Finally, some methods and measures to improve the bonding performance of reinforcement and concrete were suggested.
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