If the beam is to be designed for a balanced condition, find the required area of steel reinforcement in mm?.
Q: Determine the required reinforcement for Panel A. Knowing that f'c= 25, MPa, Fy = 420 MPa, LL = 6…
A: Given, f'c= 25 MPa fy=420 MPa LL = 6 kN/m2 DL = 1.2 kN/m2 Unit weight of concrete = 24.5 kN/m3
Q: Problem No. 1 A 250x450mm beam with a concrete cover of 40mm and stirrups of 10mm with fc' of 21Mpa…
A: b=250 mmd=450-40=410 mmfc'=21 MPafy=276 MPa
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Q: Q1// Determine the required reinforcement for Panel A. Knowing that f'c= 25, MPa, Fy = 420 Brick…
A: Given, f'c = 25 MPa fy = 420 MPa LL = 6 kN/m2 DL = 1.2 kN/m2 unit weight = 24.5 kN/m3
Q: Determine the reinforcement required of a beam cross section shown in the Figure of ? = 400??,? =…
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Q: the maximum shear stress in the wood. Vmax=3530.8 N, Iz=287239583.3 mm4 Answer: 0.2017MPa
A: Given data Vmax.=3530.8 N, Iz=287239583.3 mm4 width, b=40×2=80mm
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Q: Problem No. 1 A 250x450mm beam with a concrete cover of 40mm and stirrups of 10mm with fc' of 21Mpa…
A: b=250 mmd=450-40=410 mmfc'=21 MPafy=276 MPa
Q: Determine the area of steel reinforcement for a 500x700 mm column subjected to a 6500 kN axial load…
A: Given: Column = 500 x 700 mm; Axial Load = 6500 kN; Bending Moment 760 kN-m; fck = 30 MPa; fyk = 500…
Q: If the beam has an overall depth of 758 mm, 4-ø22 mm tension bars and the distance of the neutral…
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Q: What is the balanced steel reinforcement (mm2) of the beam if it has a specified compressive…
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Q: Define Load Combinations for ASD
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Q: What is the balanced steel reinforcement (mm2) of the beam if it has a specified compressive…
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Q: What is the design shear strength (kN) of a 4-leg 12 mmø stirrups spaced at 158 mm on centers in a…
A: Given Data:4-leg 12mmϕ stirrupsS= c-c spacing = 158mmb= 300mm.d= 530mmfy = 415 Mpa (for main bar)fy…
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Q: altermate design pad of 30 kN/m, under the following conditions: concrete unit weight, Yc = 23.5…
A: Given: L=4m, Deadload=25 kN/m, Liveload=30kN/m fc'=28 MPa, fy=420 MPa db=32 mm
Q: Determine the required spacing of #3 stirrups (Grade 40) along the length of a 5000 psi, 35-ft long…
A: Compressive strength of concrete (fc') = 5000 psiYield strenght of steel (fy) = 60000 psiWidth of…
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Q: What is the balanced steel reinforcement (mm2) of the beam if it has a specified compressive…
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Q: Given the section and plan view of the structural elements (Foundation and Column), estimate the…
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Q: 3) What is the allowable load capacity, P., for a 4 in. x 6 in. nominal (3.5 in. x 5.5 in.) sawn…
A: Data Given: Dimensions = 4" × 6"Fc = 1300 psiCD = 0.9FCE = 774 psi Asked: Allowable load capacity…
Q: Problem No. 1A 250x450mm beam with a concrete cover of 40mm and stirrups of 10mm with fc' of 21Mpa…
A: b=250 mmd=450-40=410 mmfc'=21 MPafy=276 MPa
Q: Find the VOLUME of the concrete to solve for the FOOTING tie Beam?
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Q: tangular Beam has width (300mm) and effect depth (500mm). It is reinforced with 4ø25 in one row . If…
A: width b=300 mm and effective depth d=500 mmArea of reinforcement Ast=4×π4×252=1963.5 mm2stress in…
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A: Given Unit weight of concrete= 150 pcf
Q: A singly reinforced rectangular beam section 250 mm wide, 400 mm deep is reinforced with…
A: Given Data: The width of the beam is b = 250 mm. The depth of a beam is d = 400 mm. The diameter of…
Q: Design the shear reinforcement of the beam loaded as shown using USD with fc’ = 20.7 MPa and fy =…
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Q: simply supported beam 300 mm wide, 500 mm deep and spans 5.5 m supports a service super imposed dead…
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Q: 1- Find the steel reinforcement area for the beam below Mll = 500 kN.m, %3D Ma.l. = 300 kN.m, f'c…
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- The modulus of elasticity of "reinforced concrete" in RC design, is O A. 420 GPa B. 200 GPa C. None () D. 220 GPaDetermine 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 mmc) Find the stresses in the concrete and the reinforcement for the following applied moments: (i) – M1= 35kN.m and (ii) – 120kN.m Cross-section: width height Modulus of elasticity: concrete reinforcement Reinforcement: depth area b:= 300-mm h := 520-mm Ec:= 30-GPa Es:= 200-GPa d:= 460-mm As 1470-mm 2 h d b
- 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.Problem 2 A composite beam made of steel and concrete has the dimensions and layout shown below. Determine (a) the location of the neutral axis; (b) The maximum allowable positive moment for the beam cross-section; and (c) the maximum allowable negative moment for the beam cross-section. = 200 GPa and a yield stress oy, steel = = 25 GPa and a yield stress oy, concrete = 30 MPa. The steel has an elastic modulus Esteel 275 MPa. The concrete has an elastic modulus Econcrete Assume that the concrete cannot carry any tensile stress. 2500mm 100mm 10mm 260mm 6mm 100mmA 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
- What is the magnitude of the compressive force on the left plumb in kN? F1 the steel and the left column concrete are bonded, what is the deformation due to applied load? part 3 is pictured(1) (2) steel stress-strain Curve Es= Esteel = what is f db #3 #4 #5 #6 #7 #8 #9 #10 ksi 0.005 Ab FOR Grade 60 steel. E Ey = when fs = 45 ksi lbs/ft_ when Es=0.005Problem Solving: A rectangular beam has dimensions of 250 mm by 625 mm with an effective depth (distance from extreme fiber in tension to the centroid of the reinforcing bars) of 575 mm and is reinforced with three 25 mmp. The concrete cylinder strength f.' = 27.6 MPa and the tensile strength in bending (modulus of rupture) is 3.28 MPa. The yield point of the steel is 414.7 MPa. The beam carries a bending moment of 61 kN.m. E_ = 200000 MPa. E_ = 4700,f. Using the transformed area method, determine the stress in the extreme fiber in compression.
- A composite beam is constructed using a steel plate (15 mm x 145 mm) with two wood beams (75 mm x 145 mm) on either side. The wood and steel are securely fastened to act as a single beam. The beam is subjected to a positive bending moment M, = 6.85 kN m. Z Steel Wood Calculate the maximum tensile and compressive stresses in the wood and steel if Ew = 11 GPa and Es = 200 GPa. (Enter your answers in MPa. Use the deformation sign convention. Use the general theory for composite beams described in the textbook.) maximum tensile stress in wood MPa maximum tensile stress in steel MPa maximum compressive stress in wood MPa maximum compressive stress in steel MPa 1-94 hThe composite bar, firmly attached to unyielding supports, is initially stress free. What maximum axial load P can be applied if the allowable stresses are 100 MPa for aluminum and 140 MPa for steel? Bronze Steel A = 1800 mm² A = 1125 mm? E = 83 GPa %3D E = 200 GPa %3D P -450 mm- 360 mm·1 Situation 19. A composite beam shown is subjected to a bending moment of 500 kN-m. Determine the maximum flexural stress; 300 VIEW INNOVATIONS 200 200 100 55. Experienced by the steel 56. Experienced by the aluminum A. 0.03 B. 25.24 57. Experienced by the brass A. 25.24 B. 37.86 REVIEW I EW INNOVATIONS Steel, E=200 GPa Aluminum, E=70 GPa Brass, E-105 GPa wwwww C. 48.2 D. 72.11 C. 16.8 C. 16.8 D. 11.21 VIEW INNOVATIONS REVIEW INNOVATIONS REVIEW IS