9.21 Determine the minimum size column (Southen Pine Dense No. 1) required to support an axial load ofP = 25 k assuming an effective column length le = 16'.

Answered: 9.21 Determine the minimum size column…

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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A cantilever timber beam with a span of L = 2.6 m supports a uniformly distributed load w. The beam width is b = 250 mm and the beam height is h= 140 mm. The allowable bending stress of the wood is 5.9 MPa. Determine the magnitude of the maximum load w that may be carried by the beam. Answer: w= i eTextbook and Media Save for Later kN/m. Attempts: 0 of 3 used Submit Answer
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A cantilever timber beam with a span of L = 2.6m supports a uniformly distributed load w. The beam width is b = 260 mm and the beam height is h = 170mm . The allowable bending stress of the wood is 5.3 MPa. Determine the magnitude of the maximum load w that may be carried by the beam.
Design a simply supported rectangular reinforced concrete beam with a span of to support a uniform live load (LL) of Use fc' = 21 fy = 320 Mpa. data: 5 6200 6.2 DL = 2750 = 2.75 KN/M fc' = 21.2 Mpa fy = 320 Mpa allowable values: L = LL = B = 4 = 0.85 0.90 M N/M KN/M N/M 6200 N/M. Assume the dead load of the beam (DL) LL (N/M) 6200 L = 5 M 5 M Mpa and = 2750 N/M. note: figure is not drawn to scale
A cantilever timber beam with a span of L = 3 m supports a uniformly distributed load w. The beam width is b = 290 mm and the beam height is h = 230 mm. The allowable bending stress of the wood is 6.3 MPa. Determine the magnitude of the maximum load w that may be carried by the beam. Answer: w = i kN/m. W L B b h
A timber column 6.5 m long and is laterally supported at 3 m from the bottom carries an axial load of 250 kN. If the allowable compressive stress parallel to the grain is 13.7 MPa, Design a column section by selecting the correct answer from the following questions. Use Forest Laboratory Formula. Modulus of Elasticity, E of the wood is 13,800 MPa. Considering the top part of the column for L1/D1 the ratio is equal to A. 12.5 B. 15.5 C. 16.5 D. 17.5 Considering the full length of the column for L2/D2, the ratio is equal to A. 25.35 B. 22.22 C. 27.30 D. 32.5 Comparing the larger L/D to K, the column should be considered a A. short colum B. intermediate column C. long column D. none of the above
1. Check the compactness of W36x529, W21x48 and W14x99. 2. Verify the available flexural strength of W18×50 shape for the beam shown below. The unfactored loads are a uniform dead load of 0.45 kip/ft and a uniform live load of 0.75 kip/ft. Use the LRFD load combinations to find the required flexural strength. Wo 0.45 kip/ft w₁ = 0.75 kip/ft 35'-0" Beam Loading & Bracing Diagram (full lateral support)
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2. A timber column, 200 mm x 200 mm in cross section, is reinforced on each side by a steel plate 200 mm and t mm thick. Determine the thickness t so that the column will support an axial load of 1350 kN without exceeding a maximum timber stress of 8.30 MPa or a maximum steel stress of 137.90 MPa. The moduli of elasticity are 10.34 GPa for timber and 200 GPa for steel.
10.72 An 18-kip centric load is applied to a rectangular sawn lumber col- umn of 22-ft effective length. Using lumber for which the adjusted allowable stress for compression parallel to the grain is ac = 1050 psi and the adjusted modulus is E = 440 x 10’ psi, determine the small- est cross section that can be used. Use b = 2d. Fig. P10.72
A cantilever timber beam with a span of L = 3.7 m supports a uniformly distributed load w. The beam width is b = 320 mm and the beam height is h = 270 mm. The allowable bending stress of the wood is 5.7 MPa. Determine the magnitude of the maximum load w that may be carried by the beam. Answer: w = i kN/m. Save for Later Attempts: 0 of 1 used Submit Answer
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9.21 Determine the minimum size column (Southen Pine Dense No. 1) required to support an axial load of P = 25 k assuming an effective column length le = 16'.