1. A rectangular concrete beam has a width of 300mm and an effective depth of 550mm. The beam is simply supported over a span of 6m and is used to carry a uniform dead load of 25 kN/m and a uniform live load of 40 kN/m. Assume fc' 21 MPa and fy = 312 MPa. Compression reinforcement, if necessary, shall be placed at a depth 80 mm from the outermost compression concrete. Used load combination of 1.4DL+ 1.7LL. 1. Determine the maximum tension steel area for singly reinforced condition. 2. Determine the required tension steel area in square millimeters. 3. Determine the required number of 25-mm tension bars. 4. Determine the required compression steel area in square millimeters. 5. Determine the required number of 25-mm compression bars.

A rectangular reinforced concrete beam has a length of 14 m is simply supported atboth ends. The width of beam is 350mm and the overall depth is 550  mm. Determine the area of the steel reinforcements if the beam is to carry a DL = 15kN/m and LL =18kN/m. The concrete strength fc = 25  and steel yield fy = 400 ������. Use 60 mm concretecover.

A rectangular concrete beam has a width of 300 mm and an effective depth of 550 mm. The beam is simply supported over a span 6 m and is used to carry a uniform dead load of 25 kN/m and a uniform live load of 40 kN/m. Assume_f'c = 21 MPa and fy = 312 MPa. Compression reinforcement if necessary shall be placed at a depth 80 mm from the outermost compression concrete. a) Determine 80 mm from the outermost compression concrete. b) Determine the required tension steel area. c) Determine the required number of 25-mm tension bars.

A rectangular cantilever beam has a width of 250mm and an effective depth of 480mm. It is reinforced with 7-25mm bars. The beam is carrying a uniformly distributed dead load of 15kN/m. The compressive strength of the concrete is 21MPa and the yield strength of the steel is 415MPa. The depth of the concrete stress block is?

A rectangular concrete beam having a width of 250 mm and an effective depth of 350 mm will be design loads as stated. The steel yield strength fy = 275 MPa and concrete strength f’c = 20.7 MPa. If the compression steel is found necessary, it will be placed 60mm from the extreme compression fiber of the beam. Neglect the effect of the displaced concrete and use NSCP 2010. A.Determine the number of pieces of 20mmØtension steel for a singly reinforced section reinforced with maximum steel for tension control. B.Determine the number of pieces of 20mmØtension reinforcements if beam is to carry a factored design moment of 80 kN.m. C.Determine the number of pieces of 20mmØtension reinforcements if beam is to carry a factored design moment of 135 kN.m. D.Determine the number of pieces of 20mmØcompression reinforcements if beam is to carry a factored design moment of 135 kN.m. hello please answer this thanks

A rectangular concrete beam has a width of 300mm and an effective depth of 550mm. The beam is simply supported over a span of 6m and is used to carry a uniform dead load of 35kN/m and uniform live load of 40kN/m. Assume fc= 21MPa and fy= 312MPa. Compression reinforcement if necessary shall be placed at a depth 80mm from the outermost compression concrete. Which of the following most nearly gives the required number of 25-mm tension bars?

If column AB is made from high strength pre-castconcrete and reinforced with four 20 mm diameter A-36steel rods, determine the maximum allowable floorloadings P. The allowable normal stress for the highstrength concrete and the steel are (ϭallow)con = 18 MPaand (ϭallow)st= 170 MPa, respectively.

A reinforced concrete beam has a width of 325mm. and a total depth of 450 mm. It has an effective depth of 375 mm and isreinforced with steel reinforcement having a total steel area of 1875 sq.mm. in one layer fc’ = 27.6 MPa and fy = 414.7 MPa.  a. Determine thedepth of the compression blockb. Determine thetotal compressive force of concretec. Determine theultimate moment capacity of the beam

3.) A reinforced concrete beam 300 mm width has an effective depth of 450 mm. it is reinforced with 6-32mmØ at the tension side and 2-28 mmØ at the compression side located at 65 mm from the top. f= 34.5 MPa and fy 345 MPa. Assume all steel yield and the contribution of compression steel may not be neglected. (NSCP 2001) a. Find the balanced steel ratio in percent? = b. Find the depth of compression stress block. c. Find the nominal moment capacity of the beam.

A rectangular concrete beam has a width 300 mm and an effective depth of 550mm. the beam is simply supported over a span of 6m and is used to carry a uniform dead load 25 Kn/m and a uniform live load of 40 Kn/m assumes for fc= 21 MPa and fy=312 MPa. Compression reinforcement if necessary shall be placed at a depth of 80mm from the outermost compression concrete. -Determine the maximum tension steel area in sq. mm. -Determine the no. of 25mm dia. bars.