reinforced concrete beam, b by h with tensile reinforcement of 6-25mm diameter bars is simply supported on a clear span of 12m.  Given: fc = 12 MPa fs = 140 Mpa wc = 24 kN/m3 n = 12 b = 331  mm h = 602  mm d = 582 mm determine the ff.

Rectangular reinforced concrete beam section b = 40 cm, h = 60 cm, d = 53 cm, material strength fy = 4200 = 4200 kgf / cm^2, fc ' = 280 kgf/cm^2, beam section configuration #4 For closed stirrups @15 cm, the net cover is 4 cm, and the beam section is subjected to a torque of Tu = Tcr. Q: What is the ultimate shear load value Vu that the beam section can bear. Among them, Tcr is the cracking torque of the beam section, #4 steel bar (db=1.27 cm, Ab=1.267 cm^2).

Situation #1: A reinforced concrete beam has a width of 300 mm and an overall depth of 550 mm. The beam is reinforced with five 25-mm diameter bottom bars and two 16-mm-diamter bars, both having fy = 345 MPa. Concrete strength fc' = 24 MPa. The centroid of the bars are located 65 mm from extreme concrete fibers. Unit weight of concrete = 23.5 kN/m3. The beam is simply supported over a span of 6 m and carries a superimposed deadload of 8 kN/m. Use NSCP 2010 1.1 What is the depth of compression block? 1.2 What is the stress of the compression steel? 1.3 What is the nominal capacity of the beam? 1.4 What safe uniformly distributed live load can the beam carry over its entire length? 1.5 Using the loads obtained from the previous questions, what is the required nominal shear strength of the beam at critical section near the support? 1.6 Using 10 mm U stirrups with fy = 275 MPa, what is the required stirrup spacing near the support.