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Prepare and submit three conceptual truss elevations based on the project constraints listed below to connect the WAEC building to the adjacent Robert C. Byrd Biotechnology Science Center. These conceptual elevations can be hand-drawn (neatly) or generated using any CAD software of your choosing. For each layout, confirm that it = 0 and that the truss meets both member length requirements as well as envelope requirements.
In addition, choose one layout for final design and describe your selection strategy for choosing said layout. This description should be no more than a paragraph long, and your selection strategy can be based on any parameters that you deem important (i.e., number of members, independent research, etc.).Truss Design Parameters:
L = 120 feet
Walkway Width = 24 feet
Load = 950 psf
Limited to W12s
σallow = 32 ksi
Δmax = L/400
Steel Price = $2.18/lb
E = 29000 ksi for all members
Project Constraints:
it = 0 (for all layouts)
Truss is simply supported at the ends.
Truss must contain a joint at midspan along the bottom of the truss.
No individual truss member may exceed 22 feet in length.
Truss members must be straight (i.e., no arches or curved members).
The truss must not exceed an envelope ±16 feet from the walkway (α = 16 feet).
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