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A simply supported reinforced concrete beam of 8 m span is subjected to uniformly distributed load...
all parts A simply supported concrete beam is to be designed to span 8m. The beam...
all parts
A simply supported concrete beam is to be designed to span 8m. The beam is required to resist a dead load of 40 kN/m (which includes an allowance for self-weight) and an imposed load of 20 kN/m Calculate the ultimate design load that the beam will be required to resist and hence calculate the ultimate design moment. (10 Marks] b) Choose an appropriate depth and width of the beam. [5 marks] c) Calculate an appropriate amount of reinforcing...
A Class 1 post-tensioned rectangular concrete beam is simply supported over a 10 m span. The char...
A Class 1 post-tensioned rectangular concrete beam is simply supported over a 10 m span. The characteristic imposed load consists of a single 50 kN force at midspan. The characteristic concrete strength is 50 N/mm2 and the unit weight of concrete is 25 kN/m. The beam is of a uniform section (Fig. 5) having the following properties: b- 250 mm; h 500 mm. Assume the concrete strength at transfer is 40 N/mm2 and there is no prestressed loss. (1) Determine...
5. Determine the mid-span short-term deflection of a simply supported beam with the section shown in...
5. Determine the mid-span short-term deflection of a simply supported beam with the section shown in Figure Q5. Design data: Concrete strength: fcu 30 MPa. Area of tensile steel reinforcement: As 1500 mm Area of compressive steel reinforcement: A,-1500 mm2 Instantaneous static modulus of elasticity of concrete = 25GPa. Span -8.0 m Loading: Dead load 5.0 kN/m (uniformly distributed load); Live load 5.0 kN/m (uniformly distributed load) (Hint: the height of neutral axis of the mid-span section under the service...
FIGURE Q2 shows cross-section of a rectangular doubly reinforced concrete beam. The concrete grade, fck is...
FIGURE Q2 shows cross-section of a rectangular doubly reinforced concrete beam. The concrete grade, fck is 20 N/mm2 and the steel grade, fyk is 500 N/mm2. Evaluate whether the beam has been designed as under reinforced section AND also determine if the section is able to resist an applied moment of 75 kN.m. [10 marks] 30 mm T 3H10 300 mm 5H12 30 mm 100 mm FIGURE Q2
simply supported reinforced concrete beam of rectangular section is hung on the left end by a 400mm square post working in tension, as shown in the figure below. The beam supports a uniform dead l...
simply supported reinforced concrete beam of rectangular section is hung on the left end by a 400mm square post working in tension, as shown in the figure below. The beam supports a uniform dead load (DL) gf 100 KN/m (excluding its own weight) and upiform live load LL) of 40KN/m. The beam is reinforced with 025 longitudinal rebars with 40mm cleat cover to the stirrups. Material properties: fy 420 MPa, fe 25 MPa. Beam dimension b 400mm and h 600mm....
2.4 A rectangular reinforced concrete beam 300 x 550 mm (b x d) is provided with...
2.4 A rectangular reinforced concrete beam 300 x 550 mm (b x d) is provided with 4H20 bars as compression steel. Determine the area of tension steel needed for the beam to attain its full moment capacity. Calculate the corresponding ultimate moment of resistance. Assume fck = 30 N/mm2 and fyk = 500 N/mm2.
A 26.0 ft. simply supported beam is subjected to factored uniformly distributed load of wa equal ...
A 26.0 ft. simply supported beam is subjected to factored uniformly distributed load of wa equal to 6.0 kips/t. Beam properties are as follows: b-14 in, d-24 in, 4,000 psi (normal-weight concrete) and fy -60,000 psi. Design shear reinforcement for the entire beam (you can use symmetry if applicable). Use two different spacings over the beam length to come up with economical design. Perform all necessary checks and calculations. Draw final design for shear ma reinforcement indicating distribution (i.e, lengths,...
A reinforced concrete beam with dimensions (300 mm * 800 mm) subjected to a service dead...
A reinforced concrete beam with dimensions (300 mm * 800 mm) subjected to a service dead load moment (MD=500 kN.m) and a service live load moment (ML = 400 kN.m). Design the section as a double reinforced section (the dimensions can't be increased). Place the compression reinforcement at 65 mm from the compression face. Compressive strength of concrete; fe 28 MPa, yielding stress of reinforcement; fy= 420 MPa. Assume 30 mm to be used in the tension (two layers), 26...
A reinforced concrete beam with dimensions (300 mm * 800 mm) subjected to a service dead...
A reinforced concrete beam with dimensions (300 mm * 800 mm) subjected to a service dead load moment (MD= 500 kN.m) and a service live load moment (ML = 400 kN.m). Design the section as a double reinforced section (the dimensions can't be increased). Place the compression reinforcement at 65 mm from the compression face. Compressive strength of concrete; fc = 28 MPa, yielding stress of reinforcement; fy= 420 MPa. Assume 30 mm to be used in the tension (two...
A T-beam with a simply supported span of 6m is subjected to a concentrated live load as shown in ...
A T-beam with a simply supported span of 6m is subjected to a concentrated live load as shown in Figure: the cross-sectional details are given in Figure. Design the beam for shear assuming f-40 MPa, fsy,f 500 MPa 700 kN 1000 100 800 828 8N28 70 300 do Consider unit weight of concrete- 25 kN/m3
A T-beam with a simply supported span of 6m is subjected to a concentrated live load as shown in Figure: the cross-sectional details are given...
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A simply supported concrete beam is to be designed to span 8m. The beam is required to resist a dead load of 40 kN/m (which includes an allowance for self-weight) and an imposed load of 20 kN/m Calculate the ultimate design load that the beam will be required to resist and hence calculate the ultimate design moment. (10 Marks] b) Choose an appropriate depth and width of the beam. [5 marks] c) Calculate an appropriate amount of reinforcing...
A Class 1 post-tensioned rectangular concrete beam is simply supported over a 10 m span. The characteristic imposed load consists of a single 50 kN force at midspan. The characteristic concrete strength is 50 N/mm2 and the unit weight of concrete is 25 kN/m. The beam is of a uniform section (Fig. 5) having the following properties: b- 250 mm; h 500 mm. Assume the concrete strength at transfer is 40 N/mm2 and there is no prestressed loss. (1) Determine...
5. Determine the mid-span short-term deflection of a simply supported beam with the section shown in Figure Q5. Design data: Concrete strength: fcu 30 MPa. Area of tensile steel reinforcement: As 1500 mm Area of compressive steel reinforcement: A,-1500 mm2 Instantaneous static modulus of elasticity of concrete = 25GPa. Span -8.0 m Loading: Dead load 5.0 kN/m (uniformly distributed load); Live load 5.0 kN/m (uniformly distributed load) (Hint: the height of neutral axis of the mid-span section under the service...
FIGURE Q2 shows cross-section of a rectangular doubly reinforced concrete beam. The concrete grade, fck is 20 N/mm2 and the steel grade, fyk is 500 N/mm2. Evaluate whether the beam has been designed as under reinforced section AND also determine if the section is able to resist an applied moment of 75 kN.m. [10 marks] 30 mm T 3H10 300 mm 5H12 30 mm 100 mm FIGURE Q2
simply supported reinforced concrete beam of rectangular section is hung on the left end by a 400mm square post working in tension, as shown in the figure below. The beam supports a uniform dead load (DL) gf 100 KN/m (excluding its own weight) and upiform live load LL) of 40KN/m. The beam is reinforced with 025 longitudinal rebars with 40mm cleat cover to the stirrups. Material properties: fy 420 MPa, fe 25 MPa. Beam dimension b 400mm and h 600mm....
2.4 A rectangular reinforced concrete beam 300 x 550 mm (b x d) is provided with 4H20 bars as compression steel. Determine the area of tension steel needed for the beam to attain its full moment capacity. Calculate the corresponding ultimate moment of resistance. Assume fck = 30 N/mm2 and fyk = 500 N/mm2.
A 26.0 ft. simply supported beam is subjected to factored uniformly distributed load of wa equal to 6.0 kips/t. Beam properties are as follows: b-14 in, d-24 in, 4,000 psi (normal-weight concrete) and fy -60,000 psi. Design shear reinforcement for the entire beam (you can use symmetry if applicable). Use two different spacings over the beam length to come up with economical design. Perform all necessary checks and calculations. Draw final design for shear ma reinforcement indicating distribution (i.e, lengths,...
A reinforced concrete beam with dimensions (300 mm * 800 mm) subjected to a service dead load moment (MD=500 kN.m) and a service live load moment (ML = 400 kN.m). Design the section as a double reinforced section (the dimensions can't be increased). Place the compression reinforcement at 65 mm from the compression face. Compressive strength of concrete; fe 28 MPa, yielding stress of reinforcement; fy= 420 MPa. Assume 30 mm to be used in the tension (two layers), 26...
A reinforced concrete beam with dimensions (300 mm * 800 mm) subjected to a service dead load moment (MD= 500 kN.m) and a service live load moment (ML = 400 kN.m). Design the section as a double reinforced section (the dimensions can't be increased). Place the compression reinforcement at 65 mm from the compression face. Compressive strength of concrete; fc = 28 MPa, yielding stress of reinforcement; fy= 420 MPa. Assume 30 mm to be used in the tension (two...
A T-beam with a simply supported span of 6m is subjected to a concentrated live load as shown in Figure: the cross-sectional details are given in Figure. Design the beam for shear assuming f-40 MPa, fsy,f 500 MPa 700 kN 1000 100 800 828 8N28 70 300 do Consider unit weight of concrete- 25 kN/m3
A T-beam with a simply supported span of 6m is subjected to a concentrated live load as shown in Figure: the cross-sectional details are given...
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