Question

A reinforced concrete beam is constructed with Grade 30 concrete which has a cross section of...

A reinforced concrete beam is constructed with Grade 30 concrete which has a cross section of 450 mm x 660 mm (b = 450 mm and D = 660 mm). The length of the beam is 5 m. The elastic modulus of the concrete is 32.8 GPa. A uniformly distributed live load of 23 kN/m is acting on the beam. Determine (a) the design bending moment on this beam for strength limit state, (b) modular ratio assuming Es = 200 GPa, (c) cracking bending moment and (d) required reinforcement (D495N steel) to have a balanced failure mode considering d = 550 mm.

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
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...
A reinforced concrete column, 5.0 m high has a cross section of 400 mm x 400...
A reinforced concrete column, 5.0 m high has a cross section of 400 mm x 400 mm. it is reinforced by four steel bars each 20 mm in diameter and carries a load of 1000 kN. Young’s modulus for steel is 200,000 N/mm2 and for concrete is 15,000 N/mm2. Determine the deformation in mm? please show solution
. A rectangular beam of size 300 * 600 mm is reinforced with steel bars of...
. A rectangular beam of size 300 * 600 mm is reinforced with steel bars of area 1530 mm^2. Concrete of Grade C-25 and steel of Grade 420 is to be used. Depth of neutral axis (y-dash) is found to be 312 mm. Find the stress at the bottom of the section, if applied bending moment is 45 KN-m.
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....
(30 pts) A short reinforced concrete column is subjected to a 1000 kN axial compressive load....
(30 pts) A short reinforced concrete column is subjected to a 1000 kN axial compressive load. The moduli of elasticity of plain concrete and steel are 25 GPa and 207 GPa, respectively, and the cross-sectional area of steel is 2% of that of the reinforced concrete. Considering the column as a structural member made of a composite material and subjected to load parallel to the steel rebars, calculate the following: a. the modulus of elasticity of the reinforced concrete b....
The beam is subjected to a uniformly distributed load w= 12 kN/m. The beam is a...
The beam is subjected to a uniformly distributed load w= 12 kN/m. The beam is a two-span continuous beam. The length of each span is L = 2 m. The beam is made of steel. Young's modulus (E) of steel is 200 GPa. The value of the moment of inertia is 21 * 106 mm4. Use the force method given in Week 6. Determine the reaction at the middle support B. Select one: a. 6.00 kN b. 18.00 kN c....
A rectangular beam having b=300 mm and d=575 mm, spans 5.5 m face to face of...
A rectangular beam having b=300 mm and d=575 mm, spans 5.5 m face to face of simple supports. It is reinforced for flexure with 4φ32 bars that continue uninterrupted to the ends of the span. It is to carry a service dead load wD=30 kN/m (including self-weight) and a service live load =45 kN/m both uniformly distributed along the span. Design the shear reinforcement using φ10 vertical U stirrups. Use the equation (a) for Vc. Material strengths are fc’=22 and...
1. (a) Explain the difference between columns which are short and slender and those which are...
1. (a) Explain the difference between columns which are short and slender and those which are braced and unbraced. (b) Calculate the ultimate axial load capacity of a short-braced column supporting an approximately symmetrical arrangement of beams assuming that it is 500 mm square and is reinforced with eight 20 mm diameter bars. Assume that fcu = 40 N/mm2, fy = 500 N/mm2 and the concrete cover is 25 mm. Design the shear reinforcement for the column. 2. (a) A...
a rectangular beam having dimensions: b=300mm and d=550mm, spans 6m face to face of simple supports....
a rectangular beam having dimensions: b=300mm and d=550mm, spans 6m face to face of simple supports. it is reinforced for flexure with 3D36mm bars that continue uninterrupted to the ends of the soan. it is to carry a service dead load of 23.8 KN/m (including self-weight) and a service lice load equal to 47.6 KN/m, both uniformly distributed along the span. use fc’=27.6 Mpa and fy=414.7 Mpa. Normal weight concrete will be used and diameter of stirrup are 10mm. 1.using...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT