This work is the result of experimental research conducted to determine the contribution of a composite material to improving the mechanical behavior of old, full-size reinforced T-beams in operation conditions under the action of short-term loads. The tension side of their ribs were strengthened by carbon strips of different lengths. Then, they were tested in loading by concentrated and uniformly distributed short-term loads. It was concluded that, for strengthening simply supported beams, there was no need for using CFRP strips longer than half of their length, and a lateral anchorage was not required. This refers to bending tests where no load increment exceeding 60% of the flexural strength is expected. The results obtained from this experiment may be of use in modern engineering practices, especially because tests conducted on old, full-size samples are very rare.

中文翻译：

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碳纤维布增强钢筋混凝土构件的试验分析

这项工作是实验研究的结果，旨在确定复合材料在短期载荷作用下的运行条件下对改善旧的全尺寸增强 T 梁的机械性能的贡献。他们的肋骨的张力侧通过不同长度的碳带加强。然后，它们通过集中和均匀分布的短期载荷进行载荷测试。得出的结论是，为了加强简支梁，不需要使用长度超过其一半长度的 CFRP 条，并且不需要横向锚固。这是指弯曲试验，其中预计不会产生超过弯曲强度 60% 的载荷增量。从这个实验中获得的结果可能对现代工程实践有用，特别是因为在旧的、