为了计算纤维塑料筋(FRP筋)的预应力损失大小,通过试验与计算相结合的方法对预应力碳纤维增强材料CFRP筋混凝土梁的应力损失进行研究。通过对6根预应力CFRP筋混凝土梁应力损失的测量,结合相关计算,得出以下结论:CFRP筋预应力损失的量值与钢绞线预应力损失的量值基本类似,采用分项计算的办法来计算CFRP筋的预应力损失,并且预应力总的损失计算值与实测值比较接近,误差在15%以内。 In order to calculate the prestress loss of fiber reinforced plastic (FRP) tendons, the stress loss of prestressed carbon fiber reinforced concrete (CFRP) tendons was studied through the combination of experiment and calculation. Through the measurement of the stress loss of 6 prestressed concrete beams with prestressed CFRP bars and the related calculation, the following conclusions are drawn: The magnitude of prestress loss of CFRP tendons is basically similar to the magnitude of prestress loss of steel strand, Method to calculate the loss of prestressed CFRP tendons, and the calculated total loss of prestressed and measured values ​​are closer to the error of less than 15%.