作　　者： (龚奇丰）; (蒋田勇）; (安磊）; (唐超）;

机构地区： 长沙市轨道交通集团有限公司,湖南长沙410000

出　　处： 《公路工程》 2017年第4期25-30,共6页

摘　　要： 为研究纤维增强复合材料FRP(Fiber Reinforced Polymer)筋混凝土界面在疲劳荷载作用下的粘结性能,利用有限元软件ANSYS建立FRP粘结式锚具组装件模型,通过对模型施加疲劳荷载,得到各参数对组装件疲劳寿命的影响。研究结果表明,有限元分析结果与试验结果吻合较好,说明该有限元模型具有良好的可靠性。得到了锚固长度、应力水平以及应力幅值等对CFRP(Carbon Fiber Reinforced Polymer)筋在活性粉末混凝土RPC(Reactive Powder Concrete)中的粘结疲劳寿命的影响规律。 For the study of FRP （Fiber Reinforced Polymer） tendons concrete interface bonding properties under fatigue load, the FRP bond-type anchorage specimen model was established by using the finite element software ANSYS. Applying cyclic load to the model, the factors affecting fatigue life can be obtained. The results showed that, the finite element analysis results are in agreement with the experi- mental results, which indicated that the analytical model has good reliability. Effect of the fatigue life of the CFRP （Carbon Fiber Reinforced Polymer） tendons in the RPC （Reactive Powder Concrete） bond- ing area is obtained under different anchorage length, stress level, stress amplitude.

关 键 词： 疲劳性能 疲劳寿命 有限元分析