RI i· 42% 10:25 PM Part 4 of 4 Open Web Steel Joist Deflection Part 2 Use the jo
ID: 1732425 • Letter: R
Question
RI i· 42% 10:25 PM Part 4 of 4 Open Web Steel Joist Deflection Part 2 Use the joist guide from the Vulcraft catalog to select the most economical K-series joist that satisfies L/360 deflection limits for joists spaced 35' o.?. supporting an auditorium with moveable seats and spanning 30 5.0 Points Question 23 of 26 The code live load (LL) for an auditorium with moveable seats is A. 60 psf B. 80 psf C. 100 psf D. 150psf ark for Review What's This? 7.0 Points Question 24 of 26 For this joist, the live load in pounds per foot (lb/ft) is lb/ft. Accepted characters: numbers, decimal point markers (period or comma), sign indicators (). E or 'e' (used in scientific notation). NOTE: For scientific notation, a period MUST be used as the decimal point marker Complex numbers should be in the form (a+ bi) where a" and 'b" need to have explicitly stated values. For example: (1+1i is valid whereas (1+i is not. (0+9i is valid whereas (9i is not. ? Mark for ReviewwhatsThis?Explanation / Answer
As per table in ASCE7, live load for an assembly area with movable seats is 100 psf.
Therefore, Ans is C
For 100 psf live load and spacing of 3.5', the uniformly distributed live load is:
100 psf x 3.5' = 350 plf.
From Vulcraft steel joist catalog, for 30' span, select 26K6.
The live load capacity for this joist meeting the deflection limit of L/360 is: 377 plf
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