Bending Capacity of Concrete-Encased Underground Electrical Duct Banks under Monotonic Loading: An Experimental Study

Table 5

Parameters in formula (6).

Specimen	(mm^2)		(mm)	(mm)	(kN·m)	(m^2)	(m)	(kPa)
A1	339	1.0	28.1	600	66.5	0.8	1.7	195.8
B1	327	1.0	16.7	350	37.4	1.3	1.7	67.7

Notes.: area of tension bars; : ratio of the magnitude of concrete rectangular stress diagram in compression zone to the design value of concrete axial compressive strength; : height of compression zone; : effective height; : bending capacity of normal section; : area of top surface; : distance between two hinge supports; : theoretical bending capacity of specimens.