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mechanics of materials, book- beer & johnson,
Problem 5.6: This is a similar problem of 5.75 in the book (7th edition), when you draw the shear and bending- moment diagrams, you can use anyone you prefer for. з Кірылі 18 kips PROBLEM 5.75 D Knowing that the allowable normal stress for the steel used is 24 ksi, select the most economical S-shape beam to support the loading shown. 31
Instructions: 1. Carefully read each problem and understand the question. 2. Use ENGINEERING PAPER for all your workings and graphs. 3. Answer ALL Questions. portant Knowing that the allowable normal stress for the steel used is 24 ksi, select the most economical S-shape beam to support the loading shown 1. IS kips S kips ?? 6 It 2 ft 2 ft
strength of material problem please please help
that the allowable normal stress for the steel used is 3 ksi,select the most economical wide-flange beam to support the loading shown. / nowing that the allowable normal stress for the steel used is 30ksi, select the most economical wide-flange beam to support the loading shown. 162 kips 62 kips
1. Knowing that the allowable bending stress for the steel used is 24 ksi, select the most economical wide-flange beam to supoort the loading shown. (Hint: start by drawing the shear and moment diagrams). 2 kips/ft 12.5 kips 3 ft 3 ft
Fig. P5. metric rolled-steel channels are to be welded back to back and 5,40 the loading shown. Knowing that the allowable normal stress o support d is 200 MPa, determine the most economical channels that Two metri MPa, r the steel used can be used. 80 kN 30 kN/m 1.8 m 0.9 m 3.6 m Fig. P5.40 5.38 and 5.39 Knowing that the allowable stress for the steel used is 165 MPa, select the most economical S-shape beam to support...
Knowing that the allowable normal stress for the steel used is 23.6 ksi, determine the section modulus and select the most economical S-shape beam to support the loading shown using the table given below. (Round the final answer to one decimal place.) 18 3 lipun С D Shape (in S12 x 31.8 36.2 SIO x 35 29.4 The section modulus is The most economical S-shape beam is (Click to select)
2. For the beam and loading shown, design the cross section of the beam, knowing that the grade of timber used has an allowable normal stress of 12 MPa 2.5 KN 2.5 KN 100 mm 6 kN/m 0.6 m 0.6 m 3. Knowing that the allowable normal stress for the steel used is 160 MPa, select the most economical S shape beam to support the loading shown. SO KN 100 kN/m B 0.8m- 1.6 m
Problem 2: the most economical (lightest) W shape to support a uniformly distributed load of 4k/ft (This load includes the weight of the beam) on a simply supported span of 25 ft as shown. Assume the yield stress of the steel to be 50 ksi. The deflection limit (Allowable) is Select 360 w 4 kips/ft 25'-0" R 50 kips RB 50 kips
1. Calculate
Ay and Ey, the vertical
reaction forces at supports A and E,
respectively.
2. Determine the maximum bending moment magnitude for the beam. One
method to obtain this value is to construct shear-force and
bending-moment diagrams on a piece of paper. Determine the maximum
bending moment magnitude from your bending-moment diagram.
3. Calculate the minimum required section modulus if the
allowable bending stress is 24 ksi
4. Below, fill in the missing portions of the beam shape
designations...
blem 2. (70 points) 1. For the beam shown in Figure (a): a) b) draw the shear force and bending moment diagrams. (30 points) Select the most economical W shape for the beam with an allowable bending stress of 30 ksi. (10 points) determine the maximum tensile and compressive bending stresses at any location along the beam if the section shown in Figure (b) is used instead of the W shape section selectedin Part b. Would the beam be safe...