Shown in the figure below is a sawn lumber beam made of Douglas-Fir 4"xNo1 & Btr grade. Select the correct option(s). Multiple options may becorrect, and hegative scoring is applicable for wrong answers.w=210plfL=21ftO Sawn lumber section with nominal size (bxd) 4x14 will work.O The minimum section modulus required is 115.8 in3O The minimum section modulus required is 100 in3O The maximum bending moment in the beam is 138915 lb-in.O The maximum deflection in the beam is 0.5 inO The actual bearing stress in the beam is 180 psi, assuming bearing length is 3.5 inO The maximum deflection in the beam is 0.7 in

The given rate of loading is 210 pounds per linear foot =210 lb/ft The total load will be:…

Shown in the figure below is a sawn lumber beam made of Douglas-Fir 4"x No1 & Btr grade. Select the correct option(s). Multiple options may be correct, and negative scoring is applicable for wrong answers. w=210plf

Shown in the figure below is a sawn lumber beam made of Douglas-Fir 4"x No1 & Btr grade. Select the correct option(s). Multiple options may be correct, and negative scoring is applicable for wrong answers. w=210plf

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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Construction Surveys

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Question

Shown in the figure below is a sawn lumber beam made of Douglas-Fir 4"x
No1 & Btr grade. Select the correct option(s). Multiple options may be
correct, and hegative scoring is applicable for wrong answers.
w=210plf
L=21ft
O Sawn lumber section with nominal size (bxd) 4x14 will work.
O The minimum section modulus required is 115.8 in3
O The minimum section modulus required is 100 in3
O The maximum bending moment in the beam is 138915 lb-in.
O The maximum deflection in the beam is 0.5 in
O The actual bearing stress in the beam is 180 psi, assuming bearing length is 3.5 in
O The maximum deflection in the beam is 0.7 in

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