Skip to main content

Deflection: steel or wood

For EITHER steel or wood beams, a question that asks for the allowable deflection limit (maximum) for live loads only requires which of the following equations?
A. L/240
B. L/360
C. ∆ = 5wl⁴ / 384EI
D. ∆ = 5Wl³ / 384EI

AnswerB. L/360 or span in inches divided by 360.
ARE 4.0 exam prep: SS

Note on calculations: From posted discussions on AREforum, memorization of most equations is not advised. However, even when the equation may be available in in-exam reference, selection of the appropriate equation requires correct identification.

Comments

Try These Too!

Joint ventures

Which AIA document series includes agreements for joint ventures? A. A-series B. B-series C. C-series D. D-series E. G-series Answer C. C-series covers architect/consultant documents including joint ventures.

Friction loss

Friction loss or static head in sizing of air ducts is given in this expression of units: A. pounds per square inch B. inches of water per 100 feet C. inches of refrigerant per 100 feet D. inches of water per foot Answer B. inches of water per 100 feet ARE 4.0 exam prep: BS

Vertical louvers

On which elevations of a building are vertical louvers generally more effective? Select 2 A. East B. South C. West D. North Answer A. East and C. West (answer applies for northern hemisphere) ARE 4.0 exam prep: SPD