摘要
为克服粘结型CFRP筋锚杆强度不高、工程质量不好控制等缺点,提出了CFRP筋在岩土锚固中作为压力型锚杆的建议。采用Φ7CFRP光圆筋为拉杆,利用自行研发的灌浆式螺丝端杆锚具及配套使用的环氧砂浆,验证了光圆CFRP筋-锚具的锚固性能,并分析了拉断破坏试件荷载-滑移曲线。研究结论可为多丝光圆CFRP筋在压力型锚杆中的工程应用提供参考。
In order to overcome CFRP bond-type anchor＇ s problems of low strength, poor engineering-quality control, CFRP pressure-type anchor used in the rock and soil anchoring was proposed. In this paper Ф7 CFRP light bars as tie bar,self-developed anchor filling screw and proper epoxy mortar were used, verifythe anchoring performance of smoothcireular CFRP tendons-anchor,analyzes the sample pull-off load damage-slip curve. Conclusion of the study offer reference for the application of multi-mercerization smooth circular CFRP tendons using as pressure-type anchor.
出处
《建筑技术开发》
2010年第4期8-10,54,共4页
Building Technology Development
基金
广西教育厅科研项目(200808MS102)
关键词
CFRP筋
锚具
压力型锚杆
拉拔试验
粘结
CFRP rebar
anchorage
pressure-type anchor rod
pull-out test
bond
