A reinforced concrete beam had awidth of 287 mm and height of 606mm. It is reinforced with 5 - 25 obars at the bottom. Use steel cover =70 mm. fc' = 23 MPa and fy = 275MPa and fc (allow) = 0.45f'c and%3D%3Dfs(allow) = 0.5fy.%3DDetermine the maximum steel stressin MPa if the beam is subjected to amaximum moment of 117.82 kN-m.

Answered: Image /qna-images/answer/821a9fdf-1fd2-4335-b394-34c6e8e70fac.jpg

A reinforced concrete beam had a width of 287 mm and height of 606 mm. It is reinforced with 5 - 25 o bars at the bottom. Use steel cover = 70 mm. fc' = 23 MPa and fy = 275 %3D %3D MPa and fc (allow) = 0.45f'c and %3D fs(allow) = 0.5fy. %3D Determine the maximum steel stress in MPa if the beam is subjected to a maximum moment of 117.82 kN-m.

A reinforced concrete beam had a width of 287 mm and height of 606 mm. It is reinforced with 5 - 25 o bars at the bottom. Use steel cover = 70 mm. fc' = 23 MPa and fy = 275 %3D %3D MPa and fc (allow) = 0.45f'c and %3D fs(allow) = 0.5fy. %3D Determine the maximum steel stress in MPa if the beam is subjected to a maximum moment of 117.82 kN-m.

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 9.1.1P

See similar textbooks

Similar questions

Situation 17: A rectangular beam has a width of 300mm and an effective depth to the centroid of the tension reinforcement of 600mm. The tension reinforcement has an area of 4762mm2 and the area of compression reinforcement placed 62.5mm from the compression face of the beam is 987.5mm2 fy=414.6 MPa, fc’=34.56 MPa. Balanced steel ratio is 0.034. Assume that steel yields. Determine the depth of compression block. Determine the design strength. Determine the concentrated live loads at the midspan in addition to a dead load of 20kN/m including the weight of the beam if it has a span of 6m.
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: Effective flange width of an interior beam in mm = ___________ Depth of uniform stress block at ultimate stage in mm to the nearest whole number = ___________ Tensile steel strain compatible with concrete strain of 0.003 in 3 decimal places = __________
Seatwork The beam shown is prestressed by using a bonded (stress relieved tendons) with a specified tensile strength of prestressing tendons strength fpu=1350 MPa, fc'=35 MPa. The area of prestressed reinforcement in tension zone Aps=1000 mm?. The specific yield strength of prestressing tendons sd, foy=1160 MPa. а. What is the value of the stress in prestressed reinforcement at nominal strength (Aps) b. What is the value of the depth of the compression block. С. What is the ultimate moment capacity of the prestressed beam. 0.85fc' 430 NA |(d-a/2) · A=1000 T=Ap.Sps 250
Question 8 1 p The rectangular doubly reinforcement stress concrete block with the arrangement of reinforcement of 2N28 bars on top and 3N28 bars on bottom. The modulus of elasticity are Ec=23,500MPa and Es = 200,000MPa. Dead load is 18KN/m and live load is 12KN/m. f'c = 25MPa 800 TE 730 N12 ligs (fsv.t-500MPa) Ast = 3N28 350 Span = 10m Figure 3 Calculate the concrete stresses in tension and compression of the reinforcement concrete beam shown in Figure 3. Compression concrete stress Choose ] Tension Concrete stress Choose]
Subject: Reinforced concrete Design- Civil Engineering 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
Determine the required tension steel area of the T beam with given properties below. Width of flange bf = 500 mm Width of web bw = 340 mm Thickness of flange tf = 140 mm Effective depth d = 350mm Effective concretee covering d' = 75mm Compressive strength of concrete fc' = 34.5 MPa Yield stress of steel bar fy = 375 MPa Mu = 415 kN-m As = _________ mm2
The rectangular doubly reinforcement stress concrete block with the arrangement of reinforcement of 2N28 bars on top and 3N28 bars on bottom. The modulus of elasticity are Ec =23,500MPa and Es = 200,000MPa. Dead load is 18KN/m and live load is 12KN/m. f'c = 25MPa 800 730 N12 ligs (fx.t-500MPa) Ast = 3N28 350 Span = 10m Figure 3 Use the Transformed section approach considering the presence of steel. Calculate the concrete area and transformed steel area in both tension and compression shown in Figure 3. n=Es/Ec Ast=1232mm^2 Use n-1 for the transformed area to do the calculate. Unit: mm^2 with two decimal
A rectangular beam has a width of 258mm and an effective depth of 600mm. It is reinforced with 4-36mm bars. The compressive strength of the concrete is 28MPa and the yield strength of the steel is 279MPa. The depth of the concrete stress block is ___ mm.
The rectangular doubly reinforcement stress concrete block with the arrangement of reinforcement of 2N28 bars on top and 3N28 bars on bottom. The modulus of elasticity are Ec =23,500MPa and Es = 200,000MPa. Dead load is 18KN/m and live load is 12KN/m. f' = 25MPa 800 IDE 730 N12 ligs (fsv.f-500MPa) Ast = 3N28 350 Span = 10m Figure 3 Calculate the combination load for the reinforcement concrete beam shown in Figure 3. Unit: KN/m with two decimal. 1.2G+1.5Q=w
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
an exterior beam has 300 mm and a height of 600 mm, it is reinforced with 5-p25 mm bars for tension which is laid out according to the code requirements. the depth of the tension strain of the beam is 353 mm. of the steel has a yield strength of 414 mpa. determine the following: Compressive strength of the concrete Maximum steel ratio Ultimate moment capacity of the beam
a) For the rectangular section shown below the maximum allowable tensile stress in the concrete Fct = 3MPa. Assume an uncracked section and find the maximum moment the section can resist as well as the stress in the reinforcement for this moment Ec:= 30-GPa Es:= 200 GPa b:= 300 mm h := 520 mm d:= 460 mm 2 As 1470 mm := b As