Improved Meta-learning Neural Network for the Prediction of the Historical Reinforced Concrete Bond–Slip Model Using Few Test Specimens

International Journal of Concrete Structures and Materials

Table 1 Letter abbreviation used in the prediction task classification.

Section of concrete specimen		Loading modes			Concrete types
Square	Circular	Beam-type bending	Beam-type drawing	Pull-out	Coarse aggregate replaced	Fine aggregate replaced	Water replaced	Normal concrete
A_squ	A_cir	B_bwan	B_bla	B_pla	C_arep	C_srep	C_nwat	C_nor

Stirrups arrangement mode		Rebar types
With stirrups	Without stirrups	Corroded rebar	Plain rebar	Coated rebar	Normal rebar
D_sti	D_nsti	E_cor	E_pla	E_coa	E_nor