GFRP加固泡桐木短柱抗压性能研究

Research on Compressive Performance for GFRP Reinforcement of Paulownia Wood Short Column

通过试验获得了GFRP加固泡桐木短柱的力学性能。分别对矩形截面的泡桐木短柱、GFRP空心柱和GFRP加固泡桐木而成的夹芯柱进行了抗压性能测试,观察并研究了GFRP空心柱和GFRP夹芯柱的破坏失效现象。通过对实验数据的筛选与分析计算,发现在泡桐木、GFRP材料抗压性能方面存在着组合效应。GFRP加固后的泡桐木短柱的抗压性能较前两者有了明显的提升,比泡桐木和GFRP材料平均承载力提高了约45%。

The mechanical properties of short column made by GFRP reinforcement of paulownia wood was obtained by experiment. The rectangular cross section of paulownia wood short column, GFRP hollow column and GFRP reinforcement of paulownia wood sandwich column were tested for the compressive performance, and the destruction and failure phenomenon of the GFRP hollow column and the GFRP sandwich column had been observed and studied. Through screening and analyzing the experimental data, the results show that the aspect of the compressive performance between paulownia wood and GFRP material has a combined effect. The compressive performance of GFRP reinforcement of paulownia wood short column obviously has been improved, and the bearing capacity is improved by about 45% than that of paulownia wood and GFRP materials on average.