Structural Analysis, Si Edition
5th Edition
ISBN: 9781285051505
Author: Aslam Kassimali
Publisher: Cengage Learning
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Chapter 2, Problem 4P
To determine
Find the axial load acting on column A, F, and H of the framing system.
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The floor of an apartment building, shown in Fig. P2.3, is subjected to a uniformly distributed load of 45 psf over its surface area. Determine the loads acting on the floor beams AF, BG, and CH, and the girders AC and FH, of the framing system.
Given. A two-story OCBF shown in Fig. 3.40c that forms part of the building
frame system in SDC E. The axial loads on the ground floor brace B1 are as follows:
Dead load D= 30 kips
Live load L= 15 kips
Seismic force QE = ±80 kips
Snow load S= 0 kips
Hydrostatic load H = 0
The redundancy coefficient p = 1.1.
Mapped two-second såpectral acceleration, Sps = 0.826 g.
Required. Determine a pipe section for brace B1, ASTM A53 Grade B steel; F, =
35 ksi, F = 60 ksi
16 ft
16 ft
Figure
-15 ft
B2
B1
--
-15 ft
B2
B1
Ordinary concentric brace frame (OCBF) example.
PROBLEMS
1002. A timber beam is reinforced with steel plates rigidly
attached at the top and bottom as shown in Fig. P-1002. By what
amount is the moment increased by the reinforcement if n = 15 and the
allowable stresses in the wood and steel are 8 MPa and 120 MPa,
respectively?
Ans. 52.2 kN-m
150
ma
w
10 mm
150
mm
250 mm
300 mm
10 mm
Chapter 2 Solutions
Structural Analysis, Si Edition
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