Calculate the tensile steel strain of 5-16mm-diameter rebars in a concrete beam 240 mm by 420mm at ultimate stage if f'c = 26Mpa and fy = 420 MPa
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Calculate the tensile steel strain of 5-16mm-diameter rebars in a concrete beam 240 mm by 420mm at ultimate stage if f'c = 26Mpa and fy = 420 MPa
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- 25) Calculate the tensile steel stress of 5-16-mm-dia rebars in a concrete beam 220 mm by 480 mm at ultimate stage if f'c = 22 MPa and fy = 420 MPa. Express your answer in whole number.Calculate the tensile steel stress of 5-20- mm-dia rebars in a concrete beam 260 mm by 410 mm at ultimate stage if f'c = 26 MPa and fy = 420 MPa. Express your answer in whole number.Question: Calculate the tensile steel stress of 5-16-mm-dia rebars in a concrete beam 240 mm by 450 mm at ultimate stage if f'c = 26 MPa and fy = 420 MPa. Express your answer in whole number.
- Calculate the tensile steel strain of 5-16-mm-dia rebars in a concrete beam 240 mm by 410 mm at ultimate stage if f'c = 20 MPa and fy=420 MPa. Express your answer in 5 decimal placesCalculate the tensile steel strain of 5-16-mm-dia rebars in a concrete beam 270 mm by 410 mm at ultimate stage if f'c = 23 MPa and fy = 420 MPa. Express your answer in 5 decimal places.Q4: For the RC beam section shown in figure below, find the location of neutral axis (N.A) and the stresses in concrete & steel reinforcement at tension and compression side. If concrete modulus of rupture (tensile strength) equals 10% of f'c, is it expected to crack at tension side? As (30 25 mm) = 1500 mm² f'c = 30 N/mm² fy = 420 N/mm² Es = 200000 N/mm² Ec= 20000 N/mm² 500 450 250
- A rectangular steel block is 75 mm in the x-direction, 50 mm in the y-direction and 100 mm in the z direction. The block is subjected to triaxial loading consisting of three uniformly forces as follows: 24 KN tension in the x-direction, 250 KN compression in the y-direction, and 240 KN tension in the z-direction. If u = 0.3 and E = 200 GPa, Determine the total resulting strain in the z- direction. Note: CN is the last 2 non zero digits of your cellphone numberSIT. B: Determine the tensile steel ratio of a given conditions if concrete strength f'. = 28 MPa and steel yield strength fy 4. if the tensile strain is Es = fy/Es upon crushing of concrete at a strain of 0.003. C. 0.02833 A. 0.01567 B. 0.02161 D. 0.02125 if the tensile strain is limited to 0.004 upon crushing of concrete at a strain of 0.003. A. 0.01567 B. 0.01548 5. 6. Minimum as required by NSCP 2015. C. 0.00313 D. 0.00405 A. 0.00333 B. 0.00276 = 420 MPa. C. 0.02778 D. 0.02064 uniformlyA 6m-simply supported beam cross-section is show in the figure below is prestressed with 15 wires of 5mm diameter at the bottom and 3 wires at the top. Assuming prestress in steel is 840 MPa and the density of concrete is 24kN/cu.m. Calculate the stress at bottom extreme fiber at midspan. (MPa) 250 mm- 25 mm 350 mm 65 mm
- 6 The minimum tensile steel strain of flexure bars in reinforced concrete beams as per NSCP 2015 is 0.005. True FalseQuestion 2A composite bar is made up of a steel strip 2 mm thick and 12 mm wide, sandwichedbetween two aluminium strips each 3 mm thick and 12 mm wide. The three strips areheld together by two rivets of 5 mm diameter each.2.1 Make a neat detailed sketch of the assembly.2.2 If the three strips are fastened together at 15 0C, determine the shear stress set up inthe rivets when the temperature is raised to 21 0C.Note: The resistance of a rivet in double shear may be taken as 1.75 times the resistancein single shear.(For steel: E = 200 GPa and α = 11×10 -6/ 0C)(For aluminium: E = 70 GPa and α = 22×10-6/0C)Problem 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.