A pin-connected structure is supported and loaded as shown. Member ABCD is rigid and is horizontal before the load P is applied. Bars (1) and (2) are both made from steel [E = 30,000 ksi] and both have a cross-sectional area of 1.25 in.². If the normal stress in bar (1) must be limited to 30 ksi, determine the maximum load P that may be applied to the rigid bar. A 80 in. 54 in. 56.3 kips 73.0 kips 61.0 kips 46.0 kips 77.4 kips (1) B 120 in. 54 in. (2) C 24 in. D P

A pin-connected structure is supported and loaded as shown. Member ABCD is rigid and is horizontal before the load P is applied. Bars (1) and (2) are both made from steel [E = 30,000 ksi] and both have a cross-sectional area of 1.25 in.². If the normal stress in bar (1) must be limited to 30 ksi, determine the maximum load P that may be applied to the rigid bar. A 80 in. 54 in. 56.3 kips 73.0 kips 61.0 kips 46.0 kips 77.4 kips (1) B 120 in. 54 in. (2) C 24 in. D P

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Pressure and Stress

Question

A pin-connected structure is supported and loaded as shown. Member ABCD is rigid and is horizontal before the
load P is applied. Bars (1) and (2) are both made from steel [E = 30,000 ksi] and both have a cross-sectional area
of 1.25 in.². If the normal stress in bar (1) must be limited to 30 ksi, determine the maximum load P that may be
applied to the rigid bar.
l
80 in.
54 in.
56.3 kips
73.0 kips
61.0 kips
46.0 kips
77.4 kips
(1)
B
120 in.
54 in.
(2)
C
24 in.
D
P

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