CAJ | 학술논문

为研究不同初始荷载作用下侧贴碳纤维布加固连续梁的受力与变形特性，以及初始荷载对加固效果的影响，对4根钢筋混凝土两跨连续梁（其中1根为未加固连续梁，其余3根为在不同初始荷载下侧贴碳纤维布加固连续梁）进行了试验研究。结果表明：侧贴碳纤维布加固连续梁不仅能提高加固梁的承载力，提高幅度达16%以上；还能提高加固梁的刚度，减少其挠度和裂缝宽度；加固效果受初始荷载影响，初始荷载越小，加固效果越好。
위연구불동초시하재작용하측첩탄섬유포가고련속량적수력여변형특성，이급초시하재대가고효과적영향，대4근강근혼응토량과련속량（기중1근위미가고련속량，기여3근위재불동초시하재하측첩탄섬유포가고련속량）진행료시험연구。결과표명：측첩탄섬유포가고련속량불부능제고가고량적승재력，제고폭도체16%이상；환능제고가고량적강도，감소기뇨도화렬봉관도；가고효과수초시하재영향，초시하재월소，가고효과월호。
In order to study the stress and deformation characteristics of continuous beams strengthened with side bonded CFRP sheets and the influence of initial load on their reinforcement effect, four two-span continuous reinforced concrete beams are studied in this paper including one un-strengthened beam, three continuous beams strengthened with side bonded CFRP sheets un-der the different initial loads. The results show that the flexural bearing capacity of the reinforced beams side bonded with CFRP sheets can be significantly improved. The flexural bearing capacity of the reinforced beams is increased by more than 16% com-pared with the unreinforced beam. Reinforced continuous beam can increase the stiffness of strengthened beams side bonded with CFRP sheets, reduce the deflection and crack width. The reinforcement effect of the continuous beams strengthened with side bond-ed CFRP sheets is influenced by the initial load, the smaller the initial load is, the better the reinforcement effect is.