Determine the nominal flexural strength M, for the beam shown in the figure below. Assume that the extreme compression fiber is at the bottom of the section, i.e. section is resisting negative moment. Use f'. = 4,000 psi and Grade 60 reinforcement is used. Eight No.8 Two No. 3 18 in 22 in 2.2 in 4.5 in
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- A beam cast monolithically has the following properties: bf=1200mm, t or hf = 110mm, bw=380mm and h=800mm. It is reinforced with 10D32mm grade 420MPa bars. Concrete strength is assumed to be 27.5MPa and the centroid of tension reinforcement is located 665mm from the outermost compression fiber. A. Determine maximum nominal moment to ensure tension controlled, kN-m. B. Calculate the balanced steel area, mm2. C. Calculate the balanced moment in kN-m.The rectangular doubly reinforcement stress concrete block with the arrangement of reinforcement of 2N28 bars on top and 3N28 bars on bottom. The modulus of elasticity are Ec =23,500MPa and Es = 200,000MPa. Dead load is 18KN/m and live load is 12KN/m. f' = 25MPa 800 IDE 730 N12 ligs (fsv.f-500MPa) Ast = 3N28 350 Span = 10m Figure 3 Calculate the combination load for the reinforcement concrete beam shown in Figure 3. Unit: KN/m with two decimal. 1.2G+1.5Q=wQuestion 8 1 p The rectangular doubly reinforcement stress concrete block with the arrangement of reinforcement of 2N28 bars on top and 3N28 bars on bottom. The modulus of elasticity are Ec=23,500MPa and Es = 200,000MPa. Dead load is 18KN/m and live load is 12KN/m. f'c = 25MPa 800 TE 730 N12 ligs (fsv.t-500MPa) Ast = 3N28 350 Span = 10m Figure 3 Calculate the concrete stresses in tension and compression of the reinforcement concrete beam shown in Figure 3. Compression concrete stress Choose ] Tension Concrete stress Choose]
- The rectangular doubly reinforcement stress concrete block with the arrangement of reinforcement of 2N28 bars on top and 3N28 bars on bottom. The modulus of elasticity are Ec =23,500MPa and Es = 200,000MPa. Dead load is 18KN/m and live load is 12KN/m. f'c = 25MPa 800 730 N12 ligs (fx.t-500MPa) Ast = 3N28 350 Span = 10m Figure 3 Use the Transformed section approach considering the presence of steel. Calculate the concrete area and transformed steel area in both tension and compression shown in Figure 3. n=Es/Ec Ast=1232mm^2 Use n-1 for the transformed area to do the calculate. Unit: mm^2 with two decimalProblem 1. The composite beam shown below carries a cantilevered load of 10 kN. The beam consists of one 30 x 124 mm plate and four 12 x 50 mm plates. They are pinned together at 120 mm intervals with round pins. The pin material has a shear strength of 159 MPa. Compute the minimum acceptable diameter for the pins. O O O O O O O -0 O 0- O 1000 mm Do O -120 mm (typ) O O O P = 10 KN 30 x 124 mm 12 x 50 mm (typ)The details of the cantilever beam are shown below. Use f’c = 28 MPa, fy = 415 MPa, and fyt = 275 MPa. Notes:• All dimensions are in millimeters.• Column reinforcement not shown for clarity• Column and beam are neither exposed to weather nor contact with the ground.• Analyze as singly reinforce beam only.• Neglect the weight of the beam.• Concrete is normal weight and reinforcements are galvanized. What is the flexural capacity of the beam at face of support in kNm? What is the shear capacity of the beam at face of support in kN? What is the maximum Pu (kN) that can be applied at the free end of the beam considering flexure and shear? What is the required minimum cut length (mm) of each stirrup? Round your answer to nearest safe25 mm
- The details of the cantilever beam are shown below. Use f’c = 28 MPa, fy = 415 MPa, and fyt = 275 MPa.Notes:• All dimensions are in millimeters.• Column reinforcement not shown for clarity• Column and beam are neither exposed to weather nor contact with the ground.• Analyze as singly reinforce beam only.• Neglect the weight of the beam.• Concrete is normal weight and reinforcements are galvanized. 1. What is the shear capacity of the beam at face of support in kN?2. What is the maximum Pu (kN) that can be applied at the free end of the beam considering flexure and shear?3. What is the required minimum cut length (mm) of each stirrup? Round your answer to nearest safe25 mmThe details of the cantilever beam are shown below. Use f’c = 28 MPa, fy = 415 MPa, and fyt = 275 MPa.Notes:• All dimensions are in millimeters.• Column reinforcement not shown for clarity• Column and beam are neither exposed to weather nor contact with the ground.• Analyze as singly reinforce beam only.• Neglect the weight of the beam.• Concrete is normal weight and reinforcements are galvanized. 1.what is the flexural capacity of the beam at face of support in kNm ? 2. What is the shear capacity of the beam at face of support in kN?3. What is the maximum Pu (kN) that can be applied at the free end of the beam considering flexure and shear?*4-36. The composite bar consists of a 20-mm-diameter A-36 steel segment AB and 50-mm-diameter red brass C83400 end segments DA and CB. Determine the average normal stress in each segment due to the applied load. Esteel l = 200 x10 Pa. EBrass = 101 K109h. |-250 mm-- 500 mm -250 mm- 50 mm 20 mm 75 kN 100 kN D A 75 kN 100 kN В C
- 1. The details of the cantilever beam are shown below. Use f’c = 28 MPa, fy = 415 MPa, and fyt = 275 MPa. Notes:• All dimensions are in millimeters.• Column reinforcement not shown for clarity• Column and beam are neither exposed to weather nor contact with the ground.• Analyze as singly reinforce beam only.• Neglect the weight of the beam.• Concrete is normal weight and reinforcements are galvanized. a. What is the required minimum cover of the beam and column in mm?b. What is the effective depth of the beam in mm?c. What is the required development length of the standard hook in tension in mm?d. What is the flexural capacity of the beam at face of support in kNm?e. What is the shear capacity of the beam at face of support in kN?f. What is the maximum Pu (kN) that can be applied at the free end of the beam considering flexure and shear?g. What is the required minimum cut length (mm) of each stirrup? Round your answer to nearest safe25 mm.1. The details of the cantilever beam are shown below. Use f’c = 28 MPa, fy = 415 MPa, and fyt = 275 MPa. Notes:• All dimensions are in millimeters.• Column reinforcement not shown for clarity• Column and beam are neither exposed to weather nor contact with the ground.• Analyze as singly reinforce beam only.• Neglect the weight of the beam.• Concrete is normal weight and reinforcements are galvanized. d. What is the flexural capacity of the beam at face of support in kNm?e. What is the shear capacity of the beam at face of support in kN?f. What is the maximum Pu (kN) that can be applied at the free end of the beam considering flexure and shear?g. What is the required minimum cut length (mm) of each stirrup? Round your answer to nearest safe25 mm.Compute for the beam shown. Use psi and psi. Does the compression steel yield in this beam at nominal strength?