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在为期半年的松弛性能试验的基础上,研究了规格为FA11的AFRP(芳纶纤维)筋的松弛率随时间的变化规律。研究表明,AFRP筋的松弛较明显,松弛率与时间对数线性相关,且松弛率与张拉控制应力成正比关系。
Based on the six months' relaxation test, the relaxation rate of AFRP (aramid fiber) with the specification of FA11 was studied. The results show that the relaxation of AFRP tendons is more obvious. The relaxation rate is linearly correlated with logarithm of time, and the relaxation rate is directly proportional to the tension control stress.