Subject: Engineering Reinforced Concrete, Please I need some explanation how did you get the answer. thankyou The column is reinforced with 10 32-mm bars distributed around the perimeter. Load Pn will be appliedwith eccentricity e about the strong axis. Material strengths are f. = 34 MPa and fy = 415 MPa. Theneutral axis c = 360 mm from extreme concrete in compression. Determine the nominal column load andits eccentricity. Find also the ultimate column strength dPn.680 mm6767PnPne350mm

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Answered: The column is reinforced with 10 32-mm…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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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
Q-A pre-tensioned concrete member of section 200 mm x 250 mm contains tendons of area 500 mm² at centre of gravity of the section. The prestress in the tendons is 1000 N/mm². Assuming modular ratio as 10, find the stress (N/mm2) in concrete.
4. Calculate yield moment for the beam. Assume concrete accepts no tension. Use fc' = 4000 psi and fy = 60,000 psi and E-4.03*10^6 psi, f=500 psi 15" 3-46 a
The concrete post is reinforced axially with four symmetrically placed steel bars, each of cross-sectional area 900 mm2. Compute the stress in each material when the 1000-kN axial load is applied. The moduli of elasticity are 200 GPa for steel and 14 GPa for concrete. Compatibiltiy Equation . Ust Bearing |1000 kN plate Steel- Concrete 300 mm 300 mm Section a-a
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 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 420MP.. 640 mm 800 mm 6 #32 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
Using the stress block, determine the ultimate moment of resistance of the section shown in Figure 2 and check whether the steei provided satisfies the bending moment due to the loads on the beam. Characteristic compressive strength of concrete, fck= 25 N/mm² Characteristic tensile strength of steel, fyk = 500 N/mm2 Clear cover to main steel as 20 mm. Ultimate Design Load =13 kN/m 2 402 mm 370 mm 2 1470 mm 9 m 230 mm Figure 2
SITUATION A: A T beam has a property shown below. fy = 420 MPa, f'c = 35 MPa %3D %3D and Es =200,000 MPa effective width = 1200 mm 100 тm 550 mm 450 mm (3060 mm²) 300 тm 2. What is the distance of the neutral axis from the extreme compression concrete in mm?
7. Given a beam section b× D = 450 mm x 950 mm, M* = 1500 kNm, f=32 MPa, fy= 500 MPa and the maximum aggregate size = 20 mm. Design and detail the section. Use N28 bars for the main reinforcement and R10 bars for stirrups. Exposure clas- sification A2 applies.
Details of a rectangular column are as follows: Column width along the x-axis = 250 mm Column width along the y-axis = 600 mm Reinforcement 8 of 25 mm diameter bars distributed equally along the longer sudes 10 mm diameter ties spced 100 mm on centers. Concrete 28th dat compressive strength, fc' = 20.7 MPa Reinforced steel yield strength, fy = 415 MPa Assume that the compression steel yields. Concrete cover to the centroid of bars 70 mm Determine the nominal balanced load with eccentricity measure from the y-axis if the depth of the rectangular concrete compressive stress block is 90.66 mm.
A 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
21 in. 24 in. f'. = 6.5 ksi fy = 50 ksi E. = 3,600 ksi n = 8.0 Mcr = 1029 k-in. 3 #8 -16 in.- + 3 in. FIND: Determine stresses in the concrete and steel at M = 1200 k-in. and enter the following values below. Pay attention to units and round values as specified, then use the rounded values for further calculations. f. = ksi (round to nearest hundredth; i.e., 0.00) ksi (round to nearest tenth; i.e., 0.0) %3D

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