Architect want to use a 300 times 600 RC beam simply support

Architect want to use a 300 times 600 RC beam (simply supported) at front porch and the design moment M_a = 60 kN.m, which of the following combination satisfies the best all ACI code design cnteria (i.e. strength, safety, serviceability). Use f_c^a = 28 MPa, f_y = 420 MPa, and phi = 0.9. 2HD32 2HD19 2HD16 3HD32 When designing a reinforced concrete beam what parameters must be considered? durability strength serviceability economy all of above For a 10 m long singly reinforced simply supported rectangular RC beam which is subjected to substantial moment demand, the preferred sue of the beam required to satisfy the serviceability limit state (i.e. deflection control) only is. 300,650 200,650 200,400 200,500 For the T-beam shown in Fig. 1, What is the maximum moment that can be resisted without having a compression in the web portion (i.e. M_flange). Use f_c = 28 MPa and f_y = 420 MPa 1250 kN.m 950 kN.m 1680 kN.m None of the above

Solution

1)D

2)D

3)A

4)A