玄武岩纤维布约束钢筋砼柱的轴心受压试验研究

Experimental behavior of BFRP-confined circular short RC columns under axial compression

玄武岩纤维由于其良好的力学性能、较好的稳定性和较低的价格使其在土木工程中的应用前景广阔,但目前玄武岩纤维在土木工程中应用的相关研究还极少。通过15根外包玄武岩纤维布(BFRP)约束钢筋混凝土圆柱轴心受压试验,对其进行分析,并考虑箍筋对约束柱极限强度的影响,提出FRP承载力计算公式,计算结果和大量试验结果吻合良好,可供工程设计和进一步研究。

BFRP is expected to bewidely used in civil engineering for its Excellent mechanic performance, good stability and comparatively low price. However, there is still little research in the aspect concerning with the application of BFRP in civil Engineering. Based on the experiments of 15 reinforced concrete short columns under anxial loading, the effectiveness of using BFRP and Hoops on strengthing the reinforced concrete short columns for increasing their loading - carrying capacity. A kind of new method is put forward, the calculated results fit with the tests satisfactorily and may be a reference for practical engineering.