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利用自行研制的CFRP-PCPs复合筋(碳纤维-棱柱体预应力混凝土复合筋)对6根钢筋混凝土梁进行嵌入式加固,并根据不同的破坏模式,推导出相应的计算公式,其计算值与试验值吻合良好。试验结果表明,相比嵌入式预应力CFRP筋加固混凝土梁,嵌入式CFRP-PCPs复合筋加固混凝土梁不但有效地提高了加固构件的抗弯强度、刚度,而且解决了前者张拉锚固装置施工工艺复杂、造价较高等问题。。
Six reinforced concrete beams were embedded reinforced with self-developed CFRP-PCPs composite bar (carbon fiber-prism prestressed concrete composite bars), and the corresponding formulas were deduced according to different failure modes. The calculated values and tests The values agree well. The experimental results show that the CFRP-PCPs reinforced concrete beams not only effectively increase the flexural strength and stiffness of the reinforced members, but also solve the former construction process of the tensile anchorage device Complex, higher cost and other issues. .