Design the reinforced concrete beam with a singly or doubly reinforced section. Thus, you should determine the required steel areas in tension or compression zones. For your design, you are free to determine the concrete cover distance. Q 1. b, width (in.) Height Mu (in.kips) fc' fy (in.) 10 22 4164 4 ksi 60 ksi www

Design the reinforced concrete beam with a singly or doubly reinforced section. Thus, you should determine the required steel areas in tension or compression zones. For your design, you are free to determine the concrete cover distance. Q 1. b, width (in.) Height Mu (in.kips) fc' fy (in.) 10 22 4164 4 ksi 60 ksi www

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Design a rectangular beam to carry a factored moment Mu=272 kN-m. The beam width is 250mm and its effective depth is 450mm. Use f'c=20.7 MPa and fy=344 MPa. d'=60mm.(Determine the required number of 25mm bars in tension reinforcement and in compression reinforcement (if needed).
From load analysis, the following are the factored design forces result: Mu = 440 KN-m, Vu = 280 KN. The beam has a width of 400 mm and a total depth of 500 mm. Use f’c = 20.7 MPa, fy for shear reinforcement is 275 MPa, fy for main bars is 415 MPa, concrete cover to the centroid of the bars both in tension and compression is 65 mm, steel ratio at balanced condition is 0.02, lateral ties are 12 mm diameter. Normal weight concrete. Calculate the required area of tension reinforcement in mm2 due to the factored moment, Mu. Express your answer in two decimal places.
From load analysis, the following are the factored design forces result: Mu = 440 KN-m, Vu = 280 KN. The beam has a width of 400 mm and a total depth of 500 mm. Use f’c = 20.7 MPa, fy for shear reinforcement is 275 MPa, fy for main bars is 415 MPa, concrete cover to the centroid of the bars both in tension and compression is 65 mm, steel ratio at balanced condition is 0.02, lateral ties are 12 mm diameter. Normal weight concrete. Calculate the required area of compression reinforcement in mm2 due to the factored moment, Mu. Express your answer in two decimal places.
Find øMn for the following T-beam: f′c = 3,000 psi, and fy = 60,000 psi. The reinforcement is three No. 8 bars. Beam span length is 17 ft and assume No. 3 stirrups, 1 ½ in. cover for beams. Also check the net tensile strain ɛt in the extreme tension steel to ensure that it is within the allowable limits.
3. A concrete floor slab 100 mm thick is cast monolithic with concrete beams 2.0 m on centers. The beams have a span of 4.2 m, web width of 250 mm and overall depth of 450 mm. The tensile reinforcement consists of 4-∅25 mm bars in two rows with 25 mm vertical clear spacing. Use material strengths f’c = 21 MPa and fy = 415 MPa. Calculate the following considering a T-geometry: a. Effective flange width of an interior beam in mm =____? ____ b. Depth of uniform stress block at ultimate stage in mm to the nearest whole number = ____?____ c. Tensile steel strain compatible with concrete strain of 0.003 in 3 decimal places =____?_____
A reinforced concrete beam has the following properties: b=300 mm d:=450 mm f'c= 28 MPa fyt:= 275 MPa If the factored shear force at the critical section is V4= 100 k, determine the required spacing of 10mm dia. stirrups in multiples of 25mm.
A rectangular beam has dimensions of 300 mm width and an effective depth of 530 mm. It is subjected to shear dead load of 94 kN and shear live load of 100 kN. Use f'c = 27.6 MPa and fyt = 276 MPa for 12 mm diameter U-stirrup. Determine the required spacing of the shear reinforcement. Round off the answer into two decimal places
a concrete floor slab 100mm thick is cast monotholic with concrete beams 2.0 m on centers. the beams have a span of 4.0m, web width of 259 mm and overall depth of 50 mm. the tensile reinforcement consists of 6-⌀20 mm bars in two rows with 25mm vertical clear spacing. use material strengths f'c=21MPa and fy=415MPa. calculate the ff considering a T-geometry: 1. effective flange width of an interior beam in mm 2. depth of uniform stress block at ultimate stage in mm to the nearest whole number 3. tensile steel strain compatible strain of 0.003
PLEASE WRITE THE COMPLETE SOLUTION NEATLY: Design a round spiral column to support an axial dead load of 700 kN and live load of1000 kN. Use gross steel ratio of approximately 2%. Assume fc’ = 20.7 Mpa and fy =276 Mpa. Use 16 mm bars for main reinforcement and 10 mm bars for spiralreinforcement.a. Compute for the required area of steel.b. Determine the number of longitudinal bars.c. Design the minimum spiral pitch if fyt = 276 MPa and concrete cover of 40mmd. Draw/sketch the cross-sectional detail of the column
The overhanging beam shown supports the given ultimate load Wu= 5okN/m. The section is 300mm by 500mm rectangular beam having f'c=35MPa, fy=420 MPa, stirrups diameter = 10mm and concrete cover 40mm. a.) Calculate the vertical reaction at B in kN b.) Calcute the vertical reaction D in kN c.) Calculate the area of steel reinforcement corresponding to rho max in mm^2. d.) Calculate the location of the point of zero shear in the beam measured from the left support B in mm. e.) Calculate the maximum positive moment in the beam in kN.m.s
A rectangular beam is to carrt a factored moment of 272 kN-m with a width of 250 mm and its effective depth is 450 mm. Using f'c = 20.7 MPa and fy = 344 Mpa: 1. Determine the required number of 25 mm dia. bars in tension reinforcement. 2. Determine the required number of 25 mm dia. bars in compression reinforcement if needed (use d' = 60mm).
The dimensions of a rectangular beam are limited to b = 300 mm and effective depth, d = 700 mm. Using f’c = 28 MPa, long bar fy = 415 MPa, calculate the required amount of tensile reinforcement so that a tensile strain of 0.005 is attained under a sustained ultimate bending moment of 1,200 kN.m. Compression bars centroid is 70 mm from beam edge. 5.353 3,839 4,387 6,180