For the bean shown below, the concrete strength is 5000 psi and the yield strength is 60,000 psi. For the midspan section shown, check if steel yields and compute ØM, and compare it with M.
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Q: A symmetrical cross-section of a reinforced concrete shown has a value of f'c = 27.63 MPa and fy =…
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- SIT. 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 symmetrical cross-section of a reinforced concrete shown has a value of f'c = 27.63 MPa and fy = 414 MPa. Calculate the nominal capacity based on the maximum steel area for a tension-controlled condition. Use the following dimensions: b = 475 mm d = 685 mm t = 138 mm web thickness = 138 mm b I NOTE: USE STORED VALUES IN YOUR CALCULATION d tA symmetrical cross-section of a reinforced concrete shown has a value of f'c = 26.27 MPa and fy = 414 MPa. Calculate the nominal capacity based on the maximum steel area for a tension- controlled condition. Use the following dimensions: b = 498 mm d = 709 mm t = 152 mm web thickness - 152 mm b 1 I d
- Assuming the concrete is uncracked, compute the flexure stresses in the extreme fibers of the beam as shown in the figure for a bending moment of 34 kN-m. The concrete has an f' of 27.60 MPa; determine also the cracking moment of the section. (Use 0.62 1 = 0.70 in calculating the modulus of rupture). Dimensions are in millimeter. 380 455 3 #9 bars (A, = 3.00 in.2) 75 30024 Calculate the tensile steel stress of 5-16-mm-dia rebars in a concrete beam 290 mm by 470 mm at ultimate stage if f'c = 27 MPa and fy = 420 MPa. Express your answer in whole number.The grains of wood in the board make an angle of 20° with the horizontal as shown. The board is subjected to an axial load of P = 300 N. (Figure 1) Part A Determine the normal stress that acts perpendicular to the grains. Express your answer to three significant figures and include the appropriate units. µA Value Units Submit Request Answer Figure < 1 of 1 Part B Determine the shear stress that acts parallel to the grains. Express your answer to three significant figures and include the appropriate units. HA -300 mm 160 mm Ta'y = Value Units 20° 25 mm1 Submit Request Answer
- 'bd . As per IS 456:2000 for M20 grade concrete and plain barsin tension the design bond stress t= 1.2 MPa Further, IS 456:2000 permits this design bond stress value to be increased by 60% for HSD bars. The stress in the HSDreinforcing steel barsin tension, a MPa. Find the required development length, La for HSD barsin terms of the bar diameter, = 360 S o.The grains of wood in the board make an angle of 20° with the horizontal as shown. The board is subjected to an axial load of P = 250 N . (Figure 1) Part A Determine the normal stress that acts perpendicular to the grains. Express your answer to three significant figures and include the appropriate units. µA Value Units Figure 1 of 1 Submit Request Answer Part B 300 mm Determine the shear stress that acts parallel to the grains. 60 mm Express your answer to three significant figures and include the appropriate units. 20° 25 mm HẢ ? Value Units P PearsonProblem 2: If f = 3 ksi what is the modulus of elasticity Ec and the maximum tensile stress fr that the concrete can carry before cracking (use ACI recommended equations). Assume a unit weight of the plain concrete is: a. Wc = 90- b. w lb lb 118- ft39 ft3) C. W = 160- Problem 3: Wight 3-6 Rugblom 4: Wight ? 7 lb ft3
- The composite bar consists of a 25-mm-diameter A-36 steel segment AB and 60-mm-diameter red brass C83400 end segments DA and CB. (Figure 1) Figure -250 mm- D A 500 mm 75 kN 75 kN 100 KN 100 KN B 1 of 1 > 250 mm- C Part A Determine the average normal stress in segment DA due to the applied load. Express your answer to three significant figures and include the appropriate units. ODA = Submit Part B JAB = O Submit HÅ Value Request Answer Determine the average normal stress in segment AB due to the applied load. Express your answer to three significant figures and include the appropriate units. μA Value C Request Answer Units ? Units ?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.(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=0.005