The beam is indeterminate to the first degree. Force in member BD is chosen as the redundant. This member is therefore sectioned to eliminate its capacity to sustain a force.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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Principle of superposition
The beam is indeterminate to the first degree. Force in member
BD is chosen as the redundant. This member is therefore
sectioned to eliminate its capacity to sustain a force.
60 kN/m
3 m
1.8 m
60
45
actual structure
(a)
160 kN/m
B
FaD
redundant
рrimary
structure
ARD
FRp applied
Fap
D
Transcribed Image Text:Principle of superposition The beam is indeterminate to the first degree. Force in member BD is chosen as the redundant. This member is therefore sectioned to eliminate its capacity to sustain a force. 60 kN/m 3 m 1.8 m 60 45 actual structure (a) 160 kN/m B FaD redundant рrimary structure ARD FRp applied Fap D
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