汕头大学学报（自然科学版）

本研究首次提出以碳纤维布和玻璃纤维布对混凝土柱进行复合加固的思路 ,进而进行了素混凝土柱、碳纤维加固混凝土柱、玻璃纤维加固混凝土柱和碳纤维 /玻璃纤维复合加固混凝土柱的对比实验研究 ,分析了工作机理 .结果表明 :与现行碳纤维加固方法比较 ,复合加固不仅使混凝土柱的抗压承载力和塑性均有一定地提高 ,而且使加固成本大幅度降低 .

In this paper is reported the first successful test of our new idea of strengthening concrete columns by means of both carbon fiber sheet and glass fiber sheet.A loading contrast test was carried out on CFRP(carbon fiber reinforced polymer)-strengthened concrete columns,GFRP(glass fiber reinforced polymer)-strengthened concrete columns,CFRP+GFRP-strengthened concrete columns,and plain concrete columns,with their working mechanism analyzed.The results obtained show that both the load carrying capacity and the plasticity of the concrete columns strengthened by means of carbon fiber+glass fiber is significantly higher than those of CFRP-strengthened concrete columns,and that the strengthening cost is greatly reduced.