Effect of Web Openings on Flexural Behaviour of Underground Metro Station RC Beams under Static and Cyclic Loading

Table 2

Test beam details.

Beam	Cross section (mm^2)	Opening	Tensile reinforcement		Compressive reinforcement	Concrete strength (MPa)
			Amount	Ratio
R	400 × 680	—	6 Փ 12 and 10 Փ 12	0.0067	10 Փ 12 and 2 Փ 12	41.6
O (O1, O2)	400 × 680	1	6 Փ 12 and 10 Փ 12	0.0067	10 Փ 12 and 2 Փ 12	42.0
T (T1, T2)	400 × 760	3	4 Փ 12 and 10 Փ 12	0.0052	11 Փ 12	41.8