Experimental Investigation of the Mechanical Behaviour of Wall–Beam–Strut Joints for Prefabricated Underground Construction

International Journal of Concrete Structures and Materials

Table 1 Measured mechanical parameters.

Specimen	Concrete		Reinforcement bar		Steel plate	Mechanical couplers
	Wall	Beam and strut	Reinforcement bar		Steel plate	Mechanical couplers
	f_c (MPa)	f_c (MPa)	f_y (MPa)	f_u (MPa)	f_ys (MPa)	f_yc (MPa)
P1	41.1	37.4	436.3	577.8	345	–
C1	52.4	40.0	445.8	571.5	–	495
P2	44.3	37.7	437.3	565.3	345	–
C2	50.3	38.4	446.5	571.0	–	495

f_c; f_y; f_u; f_ys; and f_yc are the cubic compressive strength of the concrete, yield strength of the rebar, ultimate strength of the rebar, yield strength of the steel plate, and yield strength of the mechanical coupler, respectively. The data in the above table are the average values of all measured data.