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为了研究TRC加固方式(单面和三面)、RC梁的配筋率和损伤程度对TRC加固RC梁受弯特性的影响,并比较TRC与CFRP加固法的优劣,本文对13根梁进行了四点弯曲试验.研究表明,采用的两种加固方式都可以提高RC梁的弯曲承载力,且可以有效地延缓弯曲裂缝的发展.TRC加固对低配筋率梁的弯曲承载力的提高幅度要高于较高配筋率梁,且TRC对损伤梁有着较好的增强修复效果.与CFRP相比,TRC加固RC梁弯曲承载力的提高略低于CFRP,但在弯曲裂缝控制方面要优于CFRP.最后,推导了TRC加固RC梁抗弯承载力计算公式,得到的计算结果表明该公式可以用于TRC加固RC梁抗弯承载力计算.
In order to study the effect of TRC strengthening mode (one-side and three-side), the reinforcement ratio and damage degree of RC beams on the flexural properties of RC beams strengthened with TRC, and compare the advantages and disadvantages of TRC and CFRP consolidation methods, 13 beams Four-point bending test.The research shows that the two kinds of reinforcement methods can improve the bending bearing capacity of RC beams and delay the development of bending cracks effectively.The improvement of the bending capacity of RC beams with low reinforcement ratio Which is higher than that of the higher reinforcement ratio beam, and the TRC has a better reinforcing and repairing effect on the damaged beam.Compared with CFRP, the flexural strength of TRC strengthened RC beam is slightly lower than that of CFRP, but it is better than CFRP in flexural crack control Finally, the calculation formula of flexural capacity of RC beams strengthened with TRC is deduced, and the calculation results show that the formula can be used to calculate the flexural capacity of RC beams strengthened with TRC.