The width and depth of a reinforced rectangular concrete beam is 400 mm and 700 mm, respectively. The effective depth is 630 mm. The material strengths are f'c=27.6 MPa and fy=414 MPa. Determine the amount of steel reinforcement in mm2 to achieve a steel train of 0.004. and the nominal flexural strength in kN.m corresponding to a steel ratio of 1.75%

The width and depth of a reinforced rectangular concrete beam is 400 mm and 700 mm, respectively. The effective depth is 630 mm. The material strengths are f'c=27.6 MPa and fy=414 MPa. Determine the amount of steel reinforcement in mm2 to achieve a steel train of 0.004. and the nominal flexural strength in kN.m corresponding to a steel ratio of 1.75%

Materials Science And Engineering Properties

1st Edition

ISBN:9781111988609

Author:Charles Gilmore

Publisher:Charles Gilmore

Chapter12: Composite Materials

Section: Chapter Questions

Problem 12.7P: Estimate the transverse tensile strength of the concrete in Problem 12.6.

See similar textbooks

Similar questions

The width and depth of a reinforced rectangular concrete beam is 400 mm and 700 mm, respectively. The effective depth is 630 mm. The material strengths are f'c=27.6 MPa and fy=414 MPa.Determine the amount of steel reinforcement at balanced condition in mm2.
CASE:A rectangular beam has the dimensions (see Fig.1) b = 15 in.,h = 30 in., and d = 27.37 in. and is reinforced with three No.9 bars. The concrete compressive strength fc' is 4000 psi, and the tensile strength in bending (modulus of rupture) is 475 psi. The yield point of the steel fy is 60,000 psi, the stress-strain curves of the materials being those of Fig.2. Determine the stresses caused by a bending moment M = 45 ft-kips.Question1:Check this case, would the concrete of the beam crack? Please calculate the strengths of those two materials in this beam.Question2:Suppose the beam under this case is subject to a bending moment M = 110 ft-kips (rather than45ft-kips as previously). Calculate the relevant properties and stresses.Question3:Determine the nominal moment Mn at which the beam of this case will fail. Question4:Have a comparison of the calculation results with those of three questions.
If the compressive strength of the concrete is 4 ksi and the yield strength of steel is 60 ksi, the value of that should be used in computing the design moment strength oMn for the beam section should be 23.5 in 1.5424 0.65 0.48 0.9 3#9 14 in 26 in
A rectangular reinforced concrete beam has a width of 300mm and an effective depth of 400mm. Concrete strength is f'c = 28 mpa and steel yield strength is fy = 280 mpa. The modulus of elasticity of steel is 200,000 MPa Compute for the total compressive forceon concrete.
A beam having a width of 500 mm and a total depth of 800mm is reinforced with 6-32mm dia bars. Compressive strength of concrete is 28 MPa and yield strength of reinforcing bars is 420MPA. 640 mm 800 mm 6 #32 C 80 mm 80 mm Determine the following: 1. depth of the compression block 2. strain in the tension reinforcement 3. moment reduction factor 4. nominal moment capacity 5. ultimate moment capacity 6. actual steel ratio 7. minimum steel ratio 8. maximum steel ratio 9. Tension force 10. Compression force
A singly reinforced rectangular section has a width of 250mm and an effective depth of 460mm. The concrete has a compressive strength of 21MPa. The steel has a yield strength of 275 MPa and E = 200,000 MPa. Calculate the ideal flexural strength for the following areas of steel: a. 2580 mm² b. 5160 mm² c. The value at balanced failure
Please double check your final answer. Subject - reinforced concrete A simply supported rectangular beam has a width of 300mm and the distance to the centroid of tension reinforcement is 330mm. The tension reinforcement has an area of 2463mm.2 and the area of compression reinforcement placed 70mm from the compression face of the beam is 1231.5mm.2, fy = 415MPa, fc'=30MPa, balanced steel ratio of 0.031.The design strength using 0.90 as the reduction faction is Choices A. 282kN.m B. 245kN.m C. 254kN.m D. 228kN.m
The following data of a pre-stress concrete are given: Beam dimension ; bxh = 300 mm x 600 mm Loads Super imposed dead load 7 KN/m Live load = 20 KN/m Unit Weight of concrete 23 KN/cubic meter The beam is simply supported on a span of 15 meters and are pre tensioned with total initialpre tensioned with total initial force of 1750 KN from low-relaxation strand with centroid 220 mm below neutral axis throughout the beam length .There is a 15% loss of stress at service loads. The concrete covering of the pre-stressed concrete is _____mm., the total dead load is _____ KN/m.
The flexural tensile strength of M25 grade of concrete, in N/mm², as per IS:456-2000 is A 0.5 B 5 C 2.25 D 3.5
A rectangular reinforced concrete beam has a width of 350 mm and an effective depth of 650 mm. The beam is reinforced with 8-28 mm diameter tension bars. Concrete strength is f'c = 20.70 MPa and steel yield strength is fy = 275 MPa. 1. Which of the following most nearly gives the steel ratio? A. 3.73% B. 2.79% C. 2.17% D. 1.62% the rectangular
9. If the value of the fc' of concrete is 30 MPa, and the actual stress of the concrete subjected to a force is 12 MPa, at what stage is the concrete at?
Determine the prestressing steel area required for the precast concrete T-beam. Use the following data: Total moment = 250 kN-m Effective stress fse= 862 MPa Allowable concrete stress = f.=11 MPa Consider zero stress at the bottom of the beam I=3673x106 mm4 A=103125 mm² Eccentricity = 271.6 mm Centroid of steel is located at 100 mm from the bottom of the beam. Select one: a. 591.97 mm b. 789.29 mm 2. C. 443.98 mm 2. d. 986.61 mm