针对碳纤维复合材料(CFRP)对不同桥台的加固效果,采用CFRP分别加固8、10、12和14 m肋板式桥台,并进行了轴和偏压试验。结果表明:通过观察桥台裂缝,得出高度对CFRP加固桥台的受力非常敏感;加之考虑中载、偏载及人群活载、混凝土收缩应力、温度荷载等因素作用下,作用荷载不变时,随加固桥台高度增加台帽顺桥向位移逐渐减小,横向应力以3%的增幅增大。利用有限元软件Midas进行模拟,与试验结果相比,吻合良好。%Research on axis-eccentrically compression of the CFRP reinforce different ribbed-plate type abut-ment for studying the reinforcement effect of the carbon fiber reinforced polymer(CFRP) to different abutment further. The axis-eccentrically compression is conducted with CFRP to reinforce 8 m, 10 m and 12 m, 14 m ribbed-plate abutment. The experimental results showed that: By observing abutment cracks, the height is sensi-tive for the CFRP reinforced abutment stress; Under the influence of the load and partial load of car, the crowd load and temperature load, creep and shrinkage of concrete, the loading is unchanged, the cap displacement along the bridge decreases with the reinforced abutment height increase, the lateral stress increase with 3%. The finite element software Midas is used to simulation, and it is good agreement with experimental results.
展开▼