Problem 1 – A large unheated storage/warehouse structure with an asymmetric gable roof system (as shown below) is 150 ft wide (at the gable ends) and 520 ft long (into the page), and is located in a fully exposed setting in open countryside two miles outside the city limits of Bend (Oregon) at an elevation of 3650 ft above sea level. The building will have occupancy loads as high as 75 people, so is classified as a Risk Category II structure. The roof pitch on the western face of the building is 1:12, and the roof pitch on the eastern face of the building is 2:12. The slippery metal roofing surface is unobstructed. Sketch three diagrams (end view of the 150 ft building width) showing (a) the balanced snow load (ps, in units of psf) on the roof, (b) the unbalanced snow loads (inçluding surcharge load, in units of psf) on the roof for wind blowing from West to East, and (c) the unbalanced snow loads (including surcharge load, in units of psf) on the roof for wind blowing from East to West. 21 12 12 25 FT 100 FT 50 FT

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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Problem 1 – A large unheated storage/warehouse structure with an asymmetric gable roof system
(as shown below) is 150 ft wide (at the gable ends) and 520 ft long (into the page), and is located
in a fully exposed setting in open countryside two miles outside the city limits of Bend (Oregon)
at an elevation of 3650 ft above sea level. The building will have occupancy loads as high as 75
people, so is classified as a Risk Category II structure. The roof pitch on the western face of the
building is 1:12, and the roof pitch on the eastern face of the building is 2:12. The slippery metal
roofing surface is unobstructed. Sketch three diagrams (end view of the 150 ft building width)
showing (a) the balanced snow load (ps, in units of psf) on the roof, (b) the unbalanced snow
loads (including surcharge load, in units of psf) on the roof for wind blowing from West to
East, and (c) the unbalanced snow loads (including surcharge load, in units of psf) on the roof
for wind blowing from East to West.
2
12
12
25 FT
100.FT
50 FT
Transcribed Image Text:Problem 1 – A large unheated storage/warehouse structure with an asymmetric gable roof system (as shown below) is 150 ft wide (at the gable ends) and 520 ft long (into the page), and is located in a fully exposed setting in open countryside two miles outside the city limits of Bend (Oregon) at an elevation of 3650 ft above sea level. The building will have occupancy loads as high as 75 people, so is classified as a Risk Category II structure. The roof pitch on the western face of the building is 1:12, and the roof pitch on the eastern face of the building is 2:12. The slippery metal roofing surface is unobstructed. Sketch three diagrams (end view of the 150 ft building width) showing (a) the balanced snow load (ps, in units of psf) on the roof, (b) the unbalanced snow loads (including surcharge load, in units of psf) on the roof for wind blowing from West to East, and (c) the unbalanced snow loads (including surcharge load, in units of psf) on the roof for wind blowing from East to West. 2 12 12 25 FT 100.FT 50 FT
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