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对8根纤维增强钢-混组合结构双层管柱进行了轴向恒载及循环弯矩作用下的试验研究。以轴向恒载大小和纤维增强复合材料的层数为主要参数,研究了这些参数对承载力、韧性、刚度、及耗能能力的影响。结果表明:一般来说,纤维增强钢-混组合结构双层管柱的耗能能力优于布置纵向纤维增强复合材料的管柱,但随后其侧向承载力骤降。由于存在轴向压力,试件的韧性有一定提高。
Experimental research on eight double-layer steel-fiber reinforced composite columns under axial load and cyclic bending moment was carried out. Taking the axial constant load size and the number of layers of fiber reinforced composites as the main parameters, the influence of these parameters on the bearing capacity, toughness, stiffness and energy dissipation capacity was studied. The results show that, in general, the energy dissipation capacity of fiber reinforced composite columns is better than that of the longitudinal fiber reinforced composite columns, but its lateral bearing capacity then drops sharply. Due to the existence of axial pressure, the toughness of the specimen must be improved.