Module 7: Bending and Shear in Simple BeamsModule 8: Bending and Shear Stresses in BeamsModule 9: Cable Geometry Characteristics The single overhang beam uses a 4 X 12 S4S Douglas fir-Larch No. 1member. Determine the maximum bending strength developed.Is it safely designed? F₁ = 1,300 psi2000#IW=400#/FT111"x814'31/2"4x12 S4SSx= 73.8 in.3

Step 1: Draw FBD of given loading conditions of the beam.Step 2: Find reactions in beam by using…

Answered: The single overhang beam uses a 4 X 12…

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 6× 10 beam of Douglas fir–larch, No. 2 grade, has a total horizontally distributed load of 6000 lb. Investigate for shear stress.
A timber formwork system utilizing 3 x 12 S4S joists spans a length of 12 feet (simply supported). The system carries a load of 175 psf (dead load plus live load). At what spacing should the joists be placed? Assume Douglas fir-Larch No. 2 (fb = 1,450 psi).
A 10× 18-in. beam of Douglas–fir larch, dense No. 1 grade,is used for a 16-ft span. The beam supports a uniformly distributed deadload of 160 lb/ft and three concentrated live loads of 4 kips each at thequarter points of the span (4 ft on center). Is the beam safe with respectto shear?
A 6× 12 beam of Douglas fir–larch, No. 1 grade, has 3 in. ofend bearing to develop a reaction force of 5000 lb. Is the situation adequatefor bearing?
A 10× 18-in. beam of Douglas fir–larch, dense No. 1 grade,is used for a 16-ft span. The beam supports a uniformly distributed deadload of 160 lb/ft and three concentrated live loads of 4 kips each at thequarter points of the span (4 ft on center). Is the beam safe with regardto bending?
Same as Problem 5.8.G (A 10× 18-in. beam of Douglas fir–larch, dense No. 1 grade, is used for a 16-ft span. The beam supports a uniformly distributed dead load of 160 lb/ft and three concentrated live loads of 4 kips each at thequarter points of the span (4 ft on center). Is the beam safe with regardto bending?)except the dead load is 240 lb/ft, the live load is 6 kips, the span is 20 ft, and the section is a Hem Fir No. 1 12 × 20.
Same as Problem 5.8.A, (A simple beam with a span of 18 ft supports a uniformly distributed dead load of 240 lb/ft and a uniformly distributed live load of 480 lb/ft. An 8 × 16 beam of Douglas fir–larch of No. 1 grade is used. Is the beam safe with regard to shear force?), except span is 24 ft, dead load is 360 lb/ft, live load is 560 lb/ft, and the section is a Hem Fir No. 1 10 × 20.
A 10 × 10 column of Douglas fir–larch, No. 1 grade, is 9 fthigh and carries a compression load of 20 kips that is 7.5 in. eccentric fromthe column axis. Investigate the column for combined compression and bending using the ASD method.
A 12 × 12 column of Hem Fir, No. 1 grade, is 12 ft highand carries a compression load of 24 kips that is 9.5 in. eccentric from thecolumn axis. Investigate the column for combined compression plus bendingusing the ASD method.
An 8 × 14 beam of Hem Fir select structural grade has aspan of 16 ft and a total uniformly distributed load of 8 kips. Investigatethe deflection.
Using the ASD method, find the allowable axial compressionload for the following wood columns. Use Douglas fir–larch, No. 2grade.
2. Give the reference bending design values for No. 1 Douglas Fir-Larch (DF-L) for the following sizes. List values for Fb and E. Give the NDS table reference.(Based on Breyer 4.16) (a). 2 x 10 (b). 12 x 12 (C). 4x8 (d). 6 x 12

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The single overhang beam uses a 4 X 12 S4S Douglas fir-Larch No. 1 member. Determine the maximum bending strength developed. Is it safely designed? F₁ = 1,300 psi 2000# I W=400#/FT 111" x 81 4' 31/2" 4x12 S4S Sx = 73.8 in.3