SITUATIONIA rectangular reinforced concretebeam, 5 m long is carrying a deadload of 18 kN/m and a live load of 35kN/m using f'c =415 MPa. The beam has a width of21 MPa using fy =300 mm and an effective depth of 400mm. Compression reinforcement willbe placed at a depth of 60 mm fromthe utmost compression concrete. 1. Compute the maximum momentdue to the factored loads.a. 125.00 kN. mb. 242.50 kN. mС. 165.43 kN. md. 181.25 kN. m2. What would be the actual stressexperienced by the steel using themaximum allowable steel ratio?а. 1000 МPас. 800 MPаb. 500 MPad. 700 MPa3. What would be thereductionfactor to be used considering themaximum allowable steel ratio?a. 0.827C. 0.718b. 0.815d. 0.900

Solution: Given: Span = 5 m DL = 18 kN/m LL = 35 kN/m fc = 21 MPa, fy = 415 MPa b = 300 mm d = 400…

SITUATIONI A rectangular reinforced concrete beam, 5 m long is carrying a dead load of 18 kN/m and a live load of 35 kN/m using f'c = 21 MPa using fy = 415 MPa. The beam has a width of %3D 300 mm and an effective depth of 400 mm. Compression reinforcement will be placed at a depth of 60 mm from the utmost compression concrete.

SITUATIONI A rectangular reinforced concrete beam, 5 m long is carrying a dead load of 18 kN/m and a live load of 35 kN/m using f'c = 21 MPa using fy = 415 MPa. The beam has a width of %3D 300 mm and an effective depth of 400 mm. Compression reinforcement will be placed at a depth of 60 mm from the utmost compression concrete.

Steel Design (Activate Learning with these NEW titles from Engineering!)

6th Edition

ISBN:9781337094740

Author:Segui, William T.

Publisher:Segui, William T.

Chapter9: Composite Construction

Section: Chapter Questions

Problem 9.1.3P

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Concept explainers

Bars

In civil engineering, bars refer to steel reinforcement bars or rebars. These are structural members primarily used for reinforcement purposes in masonry works. A bar is characterized by its cross-sectional area, which is negligible compared to its length. Bars are usually manufactured by steel which is uniform throughout the length, or by meshing multiple steel wires. Other materials of the bar include carbon steel, glass fiber, carbon fiber, and basalt fiber. The reinforcing bars are coated with epoxy resins and other materials to enhance some of their properties including corrosion resistance.

Question

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SITUATIONI
A rectangular reinforced concrete
beam, 5 m long is carrying a dead
load of 18 kN/m and a live load of 35
kN/m using f'c =
415 MPa. The beam has a width of
21 MPa using fy =
300 mm and an effective depth of 400
mm. Compression reinforcement will
be placed at a depth of 60 mm from
the utmost compression concrete.

1. Compute the maximum moment
due to the factored loads.
a. 125.00 kN. m
b. 242.50 kN. m
С. 165.43 kN. m
d. 181.25 kN. m
2. What would be the actual stress
experienced by the steel using the
maximum allowable steel ratio?
а. 1000 МPа
с. 800 MPа
b. 500 MPa
d. 700 MPa
3. What would be the
reduction
factor to be used considering the
maximum allowable steel ratio?
a. 0.827
C. 0.718
b. 0.815
d. 0.900

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