Xie Fang, Chen Ju, Dong Xinlong, Feng Bing
Faculty of Mechanical Engineering & Mechanics, Ningbo University, Ningbo 315211, China.
Department of Civil Engineering, Shaoxing University, Shaoxing 312000, China.
Materials (Basel). 2018 Jan 8;11(1):92. doi: 10.3390/ma11010092.
Experimental investigation of GFRP (glass fiber reinforced polymer) tubes that were filled with magnetically driven concrete was carried out to study the flexural behavior of specimens under bending. Specimens having different cross section and lengths were tested. The test specimens were fabricated by filling magnetically driven concrete into the GFRP tubes and the concrete was vibrated using magnetic force. Specimens vibrated using vibrating tube were also tested for comparison. In addition, specimens having steel reinforcing bars and GFRP bars were both tested to study the effect of reinforcing bars on the magnetically driven concrete. The load-displacement curves, load-strain curves, failure mode, and ultimate strengths of test specimens were obtained. Design methods for the flexural stiffness of test specimens were also discussed in this study.
对填充有磁驱动混凝土的玻璃纤维增强聚合物（GFRP）管进行了试验研究，以研究试件在弯曲作用下的抗弯性能。测试了具有不同横截面和长度的试件。通过将磁驱动混凝土填充到GFRP管中来制作测试试件，并利用磁力对混凝土进行振捣。还测试了使用振动管振捣的试件以作比较。此外，对配有钢筋和GFRP筋的试件都进行了测试，以研究钢筋对磁驱动混凝土的影响。得到了测试试件的荷载-位移曲线、荷载-应变曲线、破坏模式和极限强度。本研究还讨论了测试试件抗弯刚度的设计方法。
