EXPERIMENTAL RESEARCH ON THE FLEXURAL BEHAVIOR OF RC BEAMS STRENGTHENED BY CARBON FIBER SHEET UNDER QUADRATIC LOADING
-
摘要: 对17根考虑二次受力的碳纤维加固钢筋混凝土梁进行抗弯性能试验,考虑纵向钢筋的配筋率、碳纤维数量以及加固时的应力水平对加固效果的影响。试验研究表明,碳纤维具有良好的加固效果,第一阶段应力的存在会使加固效果降低,配筋率、碳纤维加固量等对碳纤维的应变影响较大。Abstract: Experimental research on the flexural behavior of 17 RC beams strengthened by carbon fiber sheet( CFS) under quadratic loading has been carried out. The experimental researches considered that how the reinforcement ratio of the longitudinal reinforcing bar, the quantity of carbon fiber sheet as well as stress level of the beam influence the CFS strengthening effect. Test research showed that the carbon fiber sheet has good strengthening performance, the stress at first stage can reduce the strengthening effect, and the reinforcement ratio and the CFS quantity have greater influence on the strain of CFS.
-
Key words:
- carbon fiber sheet /
- concrete /
- beam /
- strengthen /
- quadratic loading
点击查看大图
计量
- 文章访问数: 90
- HTML全文浏览量: 8
- PDF下载量: 91
- 被引次数: 0