A Research on Modification Method for NSM FRP-Concrete Bonded Joints Strength Models

Table 13

Coefficients in the regression function f for the three models.

Coefficients	AM Model	Zhang Model	SR Model
b0	7.494	7.389	7.686
b1	−1.245	−1.256	−1.036
b2	−0.327	−0.331	−0.364
b3	−0.090	−0.087	−0.114
b4	−0.150	−0.154	−0.140
b5	0.003	0.003	−0.005
R^2	0.854	0.858	0.840