Question

Problem 1 A simply supported reinforced concrete beam has a width (b) of 14 inches, and...

Problem 1

A simply supported reinforced concrete beam has a width (b) of 14 inches, and an effective depth (d) of 24 inches. It is reinforced with 3 # 8 bars. Assume 60-ksi steel and 3000-psi concrete. Determine the resisting moment (Mr) in ft-k that this beam can safely sustain.

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A simply supported reinforced concrete beam has a width (b) of 14 inches, and an effective...
A simply supported reinforced concrete beam has a width (b) of 14 inches, and an effective depth (d) of 24 inches. It is reinforced with 3 # 8 bars. Assume 60-ksi steel and 3000-psi concrete. Determine the resisting moment (Mr) in ft-k that this beam can safely sustain. Problem 2 The beam given in Problem 1 has a span of 21 ft. It is supposed to carry a uniformly distributed service dead load of 3.7 k/ft, in addition to its...
Problem 3 A reinforced concrete beam is cantilevered over a span of 10 ft. The beam...
Problem 3 A reinforced concrete beam is cantilevered over a span of 10 ft. The beam width is 14”. The beam is supposed to carry a uniformly distributed service dead load of 1.2 k/ft and a uniformly distributed service live load of 0.5 k/ft over its entire span. The dead load includes an allowance for the beam weight. Assume 60- ksi steel and 4,000-psi concrete. 1.Use the design equations to determine the minimum required effective depth (d). 2.Select the tensile...
A simply supported reinforced-concrete beam has to resist a maximum factored moment of M* = 210...
A simply supported reinforced-concrete beam has to resist a maximum factored moment of M* = 210 KN-m. Given that f’c = 32 MPa, fy = 500 MPa and that the maximum possible width for the beam is 240 mm: a. Establish an appropriate structural depth ‘d’ for the beam b. Determine the total depth ‘D’ of the beam for a FRL of 90 minutes c. Find the area of steel Ast required to resist the moment and select the rebars....
A simply supported rectangular concrete beam is 18 in. wide and has an effective depth of...
A simply supported rectangular concrete beam is 18 in. wide and has an effective depth of 32 in. The beam supports a factored load (wu) of 15 kips/ft. on a clear span of 22 ft. The given load includes the weight of the beam. Use f'c = 4,000 psi. and fy = 60,000 psi. Over what length of span are stirrups required? Group of answer choices 8.35 ft. 9.18 ft. 10.26 ft. Stirrups are not required for this beam. None...
A simply supported rectangular concrete beam is 18 in. wide and has an effective depth of...
A simply supported rectangular concrete beam is 18 in. wide and has an effective depth of 32 in. The beam supports a factored load (wu) of 15 kips/ft. on a clear span of 22 ft. The given load includes the weight of the beam. Use f'c = 4,000 psi. and fy = 60,000 psi. What is the un-rounded stirrup spacing requirement at the critical section? Group of answer choices 3.23 in. 3.63 in. 4.04 in. 4.50 in. None of the...
A rectangular, tension-reinforced beam is to be designed for dead load of 500 lb/ft plus self-weight...
A rectangular, tension-reinforced beam is to be designed for dead load of 500 lb/ft plus self-weight and service live load of 1200 lb/ft, with a 22 ft simple span. Material strengths will be fy = 60 ksi and fc・= 3 ksi for steel and concrete, respectively. The total beam depth must not exceed 16 in. Calculate the required beam width and tensile steel requirement, using a reinforcement ratio of 0.60 ρ0.005 . Use ACI load factors and strength reduction factors....
While working with a concrete subcontractor, you were asked to redesign a concrete beam to use...
While working with a concrete subcontractor, you were asked to redesign a concrete beam to use No #8 reinforcing bars as the Sub has excess amounts of it. To do so, you need to determine the following: 1) The effective depth of the beam (d) 2) The total depth of the beam (h) 3) The area of tensile reinforcing required and then the number of #8 bars The service load bending moments on the beam are 62 kip-ft for dead...
Determine the largest allowable bending moment for a rectangular reinforced concrete beam having the width b...
Determine the largest allowable bending moment for a rectangular reinforced concrete beam having the width b = 200 mm, total height h = 375 mm and the distance from the bottom surface of the beam to the centre line of steel bars = 75 mm. Use the total area of steel As = 1360 mm2, modulus of elasticity of concrete = 30 GPa, modulus of elasticity of steel = 210 GPa, allowable compressive stress for concrete = 15 MPa and...
Design a simply supported one-way reinforced concrete floor slab to span 12 ft and carry a...
Design a simply supported one-way reinforced concrete floor slab to span 12 ft and carry a service live load of 180 psf and a service dead load of 20 psf. Use fc’=3000 psi and fy=60,000 psi. Make the slab thickness to 1⁄2 inch increments. (Hint: Design the slab according to the ACI Code minimum thickness)
Calculate the total area of steel required in tension zone for a simply supported beam of...
Calculate the total area of steel required in tension zone for a simply supported beam of 230 mm wide, 406 mm effective depth. The total ultimate factored moment on the beam is 146.76 kN.m. Assume an effective cover for the compression reinforcement as 20 mm. Mu,lim of the section is 130.76 kN.m. Use M25 grade concrete and Fe415 steel. Check for spacing, shear and deflection is not required.