Given. A three-story, two-bay SCBF shown in Fig. 3.41. It is part of a building frame system of a structure in seismic design category (SDC) D with a redundancy coefficient p = 1.20. The building is on a site with a short period mapped acceleration response Sps = 0.90. The axial loads acting on the second story brace B2 are Dead load D = 40 kips Live load L= 12 kips Snow load S= 0 kips Hydrostatic load H= 0 kips Seismic force Q = +90 kips

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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16 ft
16 fit
16 ft
15 ft 15 ft
B3
B2
0=43°
B1
B3
B2
B1
Roof
2
Ground
Transcribed Image Text:16 ft 16 fit 16 ft 15 ft 15 ft B3 B2 0=43° B1 B3 B2 B1 Roof 2 Ground
Given. A three-story, two-bay SCBF shown in Fig. 3.41. It is part of a building
frame system of a structure in seismic design category (SDC) D with a redundancy
coefficient p = 1.20. The building is on a site with a short period mapped acceleration
response Sps = 0.90. The axial loads acting on the second story brace B2 are
Dead load D = 40 kips
Live load L = 12 kips
Snow load S = 0 kips
Hydrostatic load H = 0 kips
Seismic force Q = +90 kips
Required. Select an appropriate tube section for the second-floor brace B2. Use
ASTM A 500, Grade B, F, = 42 ksi, F. (minimum tensile stress) = 58 ksi, steel.
Transcribed Image Text:Given. A three-story, two-bay SCBF shown in Fig. 3.41. It is part of a building frame system of a structure in seismic design category (SDC) D with a redundancy coefficient p = 1.20. The building is on a site with a short period mapped acceleration response Sps = 0.90. The axial loads acting on the second story brace B2 are Dead load D = 40 kips Live load L = 12 kips Snow load S = 0 kips Hydrostatic load H = 0 kips Seismic force Q = +90 kips Required. Select an appropriate tube section for the second-floor brace B2. Use ASTM A 500, Grade B, F, = 42 ksi, F. (minimum tensile stress) = 58 ksi, steel.
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