CFRP加固损伤梁刚度与承载力退化分析研究进展

Research Progress on Stiffness and Bearing Capacity Degradation of Damaged Beams Strengthened with CFRP

长期服役的钢筋混凝土受弯构件大多是在带裂缝、钢筋锈蚀等损伤下工作的。综述了碳纤维增强复合材料(CFRP)加固钢筋混凝土梁在发生机械损伤、钢筋锈蚀、耦合损伤下的刚度及承载力退化规律和理论公式的推导研究进展,指出当前研究的一些不足,并在此基础上提出有待进一步研究的问题。

Most of the flexural members of reinforced concrete in long-term service work under the damage of cracks and corrosion of reinforcement.In this paper,the stiffness and bearing capacity degradation laws and theoretical formulas of CFRP reinforced concrete beams subjected to mechanical damage,corrosion of reinforcement and coupling damage were reviewed,and some deficiencies in current research were pointed out.