CAJ | 학술논문

为了研究CFL增强RC梁在不同温度下的疲劳性能,分别在20°C、50°C和80°C的温度条件下对CFL增强RC梁进行了3点弯曲静载和疲劳试验.试验结果表明:当加固梁的疲劳载荷水平为其静载屈服强度的83%,极限强度的61%时,加固梁的破坏模式、疲劳寿命、载荷-挠度曲线和应变反应等受温度的影响较小.因此,在该载荷水平下,加固梁的疲劳性能受温度的影响较小.
위료연구CFL증강RC량재불동온도하적피로성능,분별재20°C、50°C화80°C적온도조건하대CFL증강RC량진행료3점만곡정재화피로시험.시험결과표명:당가고량적피로재하수평위기정재굴복강도적83%,겁한강도적61%시,가고량적파배모식、피로수명、재하-뇨도곡선화응변반응등수온도적영향교소.인차,재해재하수평하,가고량적피로성능수온도적영향교소.
In order to investigate fatigue performance of RC beams strenthened with CFL, static and fatigue tests at different ambient temperatures of 20°C, 50°C and 80°C were carried out. The failure modes, fatigue lives, load versus deflection curves and strain response provided an insight into the behavior of the strengthened beams. The results show that the fatigue behavior of the strengthened beams are not significantly influenced by the ambient temperatures when the peak loads amount to 83% of the yield load and 61% of the failure load of the strengthened beams under static loading.