复材结构玄武岩纤维复材筋钢纤维再生混凝土梁受弯试验及抗弯承载力计算

韩飞; 孔祥清; 邢丽丽; 何文昌; 王学志

doi:10.13204/j.gyjz202006027

复材结构玄武岩纤维复材筋钢纤维再生混凝土梁受弯试验及抗弯承载力计算

doi: 10.13204/j.gyjz202006027

辽宁工业大学土木建筑工程学院, 辽宁锦州 121001

基金项目:

国家自然科学基金项目（51479168）；辽宁省兴辽英才计划青年技术人才项目（XLYC1807044）。

详细信息

作者简介:
韩飞,男,1993年出生。

通讯作者:
孔祥清,博士,教授,xqkong@lnut.edu.cn。

计量
- 文章访问数: 78
- HTML全文浏览量: 10
- PDF下载量: 4
- 被引次数: 0
出版历程
- 收稿日期: 2019-02-07
- 刊出日期: 2020-08-20

EXPERIMENTAL RESEARCH ON FLEXURAL CAPACITY OF RECYCLED AGGREGATE CONCRETE BEAMS MIXED WITH STEEL FIBERS REINFORCED WITH BFRP BARS

Department of Civil & Architectural Engineering, Liaoning University of Technology, Jinzhou 121001, China

摘要

摘要: 通过对7根玄武岩纤维复材（BFRP）筋钢纤维再生混凝土梁的受弯试验，研究不同钢纤维体积掺量和BFRP筋配筋率对其受弯性能的影响。结果表明：钢纤维体积掺量和配筋率均对BFRP筋钢纤维再生混凝土梁的抗弯承载力有一定程度的影响。相较于未掺钢纤维的BFRP筋再生混凝土梁，钢纤维体积掺量为1.0%的试验梁的初裂荷载和极限荷载分别提高了32.8%和18.2%。随着BFRP筋配筋率的增加，BFRP筋再生混凝土梁抗弯承载力显著增加。还在试验基础上结合相关现行技术标准，对BFRP筋钢纤维再生混凝土梁的受弯承载力、挠度、裂缝宽度进行分析计算，并对计算值与试验结果进行对比分析。
- BFRP筋 /
- 钢纤维 /
- 再生混凝土梁 /
- 抗弯承载力 /
- 理论计算
Abstract: In order to investigated the influence of volume content of steel fibers and longitudinal reinforcement ratio on the bending behaviour of recycled aggregate concrete beams mixed with steel Fibers reinforced with BFRP bars, the bending performance tests of seven beams were carried out. The results showed that the volume content of steel fibers and reinforcement rate both had a certain influence on the flexural capacity of recycled aggregate concrete beams mixed with steel fibers reinfored with BFRP bars. Compared with the recycled aggregate concrete beams reinforced with BFRP bars without steel fibers, the initial crack load and ultimate load of the test beams with 1.0% steel fibers volume content were increased by 32.8% and 18.2% respectively. With the increase of the contents of BFRP bars, the flexural capacity of recycled aggregate concrete beams reinforced with BFRP bars increased significantly. In addition, based on the experiments, the paper also combined with the relevant current norms and theories to verify the flexural capacity, deflection and crack width of the recycled aggregate concrete beams reinforced with BFRP bars, and compared the experimental values with the theoretical calculation results.
- BFRP bar /
- steel fiber /
- recycled aggregate concrete beam /
- flexural capacity /
- theoretical calculation

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