Problem 2: A existing (E) W18x40 is deflecting too much and you were asked to decrease the floor deflection by 30%. Since space is limited, you can only use a maximum of a 3" deep member. Choose a WT member to increase the moment of inertia by 30%. Note: Do not over-design the member or else you'll loose the job to another engineer. You are given $1,500 to do this job.

Structural Analysis
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ISBN:9781337630931
Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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Problem 2: A existing (E) W18x40 is deflecting too much and you were asked to
decrease the floor deflection by 30%. Since space is limited, you can only use a
maximum of a 3" deep member. Choose a WT member to increase the moment of
inertia by 30%. Note: Do not over-design the member or else you'll loose the job to
another engineer. You are given $1,500 to do this job.
(E)W18x40
(N)WT3x???
Transcribed Image Text:Problem 2: A existing (E) W18x40 is deflecting too much and you were asked to decrease the floor deflection by 30%. Since space is limited, you can only use a maximum of a 3" deep member. Choose a WT member to increase the moment of inertia by 30%. Note: Do not over-design the member or else you'll loose the job to another engineer. You are given $1,500 to do this job. (E)W18x40 (N)WT3x???
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section (E)W18x 40

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space is limited

use maximum 3" deep member


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choose the WT member to increase the moment of inertia by 30%


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