摘要
进行了8根碳纤维布加固混凝土柱的轴心受压试验研究，着重探讨了不同转角曲率半径、混凝土开裂程度等因素对加固效果的影响。试验结果表明，《碳纤维片材加固混凝土结构技术规程》中“转角处的曲率半径不小于20mm”的规定是合理的，转角处的曲率半径并不是越大越好，一般在20-50mm为宜。混凝土出现少量裂缝时，进行及时加固，其极限承载力仍有较大的提高。
Eight concrete columns strengthened with carbon fiber reinforced polymer are tested. The effects of different curvature radius of CFRP and concrete cracks on strengthening are studied. The test results show that the technical specification for strengthening concrete structures with carbon fiber reinforced polymer laminate is reasonable and the curvature radii between 20 to 50 ram is appropriate, and the capacity of the column can be improved when cracked concrete column is strengthened with cfrp.
出处
《四川建筑科学研究》
北大核心
2007年第1期108-111,共4页
Sichuan Building Science
