5.8 The following show the bending moment diagram that was calculated by a computer analysis of a multi-span continuous beam. The beam total length is 60 ft (each square unit is 2 ft long). The calculated bending moments are shown in kip-ft. the maximum positive moment is 39.2 ft kip and maximum negative moment is 47.2 ft-kips. (Positive bending moment indicates tension at bottom of section and is drawn downward). 34.6 -39.2 47.2 ALE HIC #HC Eittho -7.9 10 76 -12.3 K a) Draw the beam elevation diagram and show the location of tension reinforcing bars (top and bottom). The bar development length is 2 ft. Use a straight edge ruler and show the bar length to a correct scale. (For clarity, a beam may be commonly drawn deeper than it would be if drawn to the same scale as its length). b) Determine the number and size of required reinforcing bars for the bending moments (positive and negative). The beam cross-section is 14"-deep by 10" wide. Concrete cover is 1" and stirrups are #4. Material properties are: f'c = 5 ksi fy = 60 ksi

5.8 The following show the bending moment diagram that was calculated by a computer analysis of a multi-span continuous beam. The beam total length is 60 ft (each square unit is 2 ft long). The calculated bending moments are shown in kip-ft. the maximum positive moment is 39.2 ft kip and maximum negative moment is 47.2 ft-kips. (Positive bending moment indicates tension at bottom of section and is drawn downward). 34.6 -39.2 47.2 ALE HIC #HC Eittho -7.9 10 76 -12.3 K a) Draw the beam elevation diagram and show the location of tension reinforcing bars (top and bottom). The bar development length is 2 ft. Use a straight edge ruler and show the bar length to a correct scale. (For clarity, a beam may be commonly drawn deeper than it would be if drawn to the same scale as its length). b) Determine the number and size of required reinforcing bars for the bending moments (positive and negative). The beam cross-section is 14"-deep by 10" wide. Concrete cover is 1" and stirrups are #4. Material properties are: f'c = 5 ksi fy = 60 ksi

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Problem 3 In a hollow beam shown below, assume fc = 34 MPa and fy = 414 MPa. Determine the required tension area when the ultimate moment capacity is 950 kN-m. 75 mm 125 mm 250 125 mm H As I 150 mm 500 mm 150 mm
X Incorrect Determine the maximum bending moment for the beam shown below. Use a - 7 ft, b - 11 ft, c - 5 ft, and w- 9 kips/ft. The reaction forces for this beam are A, - 45.2 kips and Dy - 53.8 kips. В D. Answer: Mmax - i kip-ft 316.4
Determine the maximum bending moment for the beam shown below. Use a-8 ft, b-12 ft, c- 6 ft, and w 9 kips/ft. The reaction forces for this beam are A, 49.8 kips and Dy- 58.2 kips. 1. B. 9. Answer: Mmax kip-ft
SITUATION A: A T beam has a property shown below. fy = 420 MPa, f'c = 35 MPa and Es =200,000 MPa effective width = 1200 mm 100 тm 550 тm 450 тm (3060 mm2) 300 тm 3. What is the ultimate moment capacity of the beam in kN-m?
%r . 19 4:EV H.W.pdf Compute the nominal moment capacity, M. of a beam with f. = 20 MPa, fy = 420 MPa. b = 250 mm, d = 500 mm, and three No. 25 bars giving A, = 3 x 500 = 1500 mm? For architectural reasons, it is necessary that the beam shown in the figure be 600mm wide by 600mm deep. The strength of the concrete and steel are 20MPA and 420MPA, respectively, In addition to its own dead load, this beam carries a superimposed service dead load of 15KN/m and a service live load of 37KN/m. Compute the area of reinforcement required at midspan, and select the reinforcement bars. Ser AN of a Beam for Which band d Are Not Known A beam is to carry its own dead load plus a uniform service live load of 25.5 kN/m and a uniform superitap sed service dead lod of 14.5 kN/m
Situation 4 - The beam in the figure has a span of 10 m. The beam used is A242 steel with Fy = 345 MPa. Distance of the moment from B is 3.76 m. bf 550 mm t - 50 mm tw- 50 mm W = 150 KN M 500mm M = 12k m 8m What is the value of the maximum shear in KN? A. 300 C. 564 D. 636 B. 500 What is the value of the maximum moment in kN-m? A. 1060.32 C. 300 B. 500 D. 636 15. What is the moment of inertia with respect to the major axis of the section in mm^4? A. 5555.55 x 10^6 C. 4961.67 x 10^6 B. 1234.45 x 10^6 D. 4691.67 x 10^6 What is the section modulus with respect to the major axis of the section in mm^3? A. 12.2 x 10^6 C. 16.59 x 10^6 B. 15.57 x 10^6 D. 13.28 x 10^6 What is the value of r? C. 134.717 mm 2m 13. 14. 16. 17. A. 143.171 mm
Working stress design method 3/ By using the working stress design method find the maximum flexural moment can be carried by the cross sections of reinforced concrete beams of details shown in Figures a,b, and. Use fs=165 MPa, fc-12.5 MPa and n=8. 100mm 200mm 3025mm 400 mm - C 500 mm - 250 mm 4020mm b 100 mm 400mm 150 mm 500 mm 75 mm 75 mm
A beam is subjected to equal bending moments of M₂ - 3700 N-m. The cross-sectional dimensions are b = 175 mm, c = 33 mm, d = 73 mm, and t = 3 mm. Determine: (a) the centroid location (measured with respect to the bottom of the cross-section), the moment of inertia about the z axis, and the controlling section modulus about the z axis. (b) the bending stress at point H. Tensile stress is positive, while compressive stress is negative. (c) the bending stress at point K. Tensile stress is positive, while compressive stress is negative. (d) the maximum bending stress produced in the cross section. Tensile stress is positive, while compressive stress is negative. Answer: M₂ (a) = i 1₂ = i ļ S = i (b) OH = i (c) OK= i (d) gmax= i y M₂ X mm mm4 mm³ MPa MPa MPa t (typ) b H K d
Determine the maximum bending moment for the beam shown below. Use a = 9 ft, b = 13 ft, c = 7 ft, and w = 15 kips/ft. The reaction forces for this beam are Ay = 90.8 kips and Dy 104.2 kips. %3D %3D В C D a b Answer: Mmax i kip-ft
Question (1): A rectangular beam has a width b = 400 mm, and effective depth d = 850 mm and a total height h = 900 mm. The beam is subjected to an ultimate moment Mu = 1500 kN.m and an ultimate shear force Vu = 700 kN. 1- ) Design the beam for flexure to calculate the required area of steel. 2-) Using stirrups Φ 10 mm ( No.10) diameter, calculate the required spacing (s) between the stirrups at the ultimate shear force section. For all questions, Use f’c= 28 MPa and Fy= 420 MPa
X Your answer is incorrect. The simply supported beam consists of a W21 x 44 structural steel wide-flange shape [E = 29,000 ksi; I = 843 in.“]. Assume that the support at D can provide resistance %3D either up or down. For a loading of w = 5.4 kips/ft, determine: (a) the beam deflection vg at point A. (b) the beam deflection vc at point C. Assume LAB = 13 ft, LBc = 7 ft, LcD =7 ft, LDE = 6 ft. %3D A B E LAB LBC LcD LCD Lpe Answers: (a) VA = -0.65669 in. (b) vc = 0.024937 in.
Problem 5 For the simply supported beam shown in figure draw SFD and BMD if Uniformly Distributed Moment (UDM) Mo, kNm/m acts over entire span. M, kN-m/m A HA Effe C C C C C E S RA Lm FR₂