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Elementary,Middle School,High School,College,University,PHD
| Teaching Since: | May 2017 |
| Last Sign in: | 407 Weeks Ago, 6 Days Ago |
| Questions Answered: | 66690 |
| Tutorials Posted: | 66688 |
MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
A six-story building has a structural steel beamcolumn frame that is appropriately fireproofed. The columns are spaced 20 feet o.c. in one direction and 25 feet o.c. in the perpendicular direction. A typical interior column supports a tributary floor area of 500 square feet. The governing building code specifies that the frame must be designed to withstand the dead weight of the structure plus a roof snow load of 40 psf and a live load on each floor of 125 psf. The dead weight of the roof is estimated to be 80 psf, and each floor is 100 psf. The unsupported length of the ground-floor column is 20 feet, and the columns at the other floor levels are 16 feet. Design a typical interior third-floor column and the first-floor column using the most economical W12 section at each level.

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