Question Help 5. Determine the forces in all members in the truss below. The diagonal bracing members cannot carry compression forces. The diagonal braces are not joined where they cross. All joints...

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Question Help 5.
Determine the forces in all members in the truss below. The diagonal bracing members cannot carry compression forces. The diagonal braces are not joined where they cross. All joints are pin joints.
Question Help 6.
Analyse the truss shown below. The bracing members are slender and cannot carry compression forces.
Question Help 7.
The 5 metre cantilever below is a 180PFC20.8kg structural steel section. Take Youngs Modulus (E) for the steel to be 200GPa. Use manufacturers technical data (e.g. Onesteel) to determine the moment of inertia for the beam. Use the Beam Deflections and Slopes table at the back in Hibbeler to calculate the following deflections.
(a) Determine the maximum deflection of the cantilever at x=5m.
(b) Determine the slope of the cantilever at x=5m.
(c) Determine the deflection of the cantilever at x=2.5m.

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Question Help 5.Determine the forces in all members in the truss below. The diagonal bracing members cannot carry compression forces. The diagonal braces are not joined where they cross. All joints are pin joints.Question Help 6.Analyse the truss shown below. The bracing members are slender and cannot carry compression forces. Question Help 7.The 5 metre cantilever below is a 180PFC20.8kg structural steel section. Take Youngs Modulus (E) for the steel to be 200GPa. Use manufacturers technical data (e.g. Onesteel) to determine the moment of inertia for the beam. Use the Beam Deflections and Slopes table at the back in Hibbeler to calculate the following deflections.Determine the maximum deflection of the cantilever at x=5m.Determine the slope of the cantilever at x=5m.Determine the deflection of the cantilever at x=2.5m.

Answered Same DayDec 20, 2021

Solution

David answered on Dec 20 2021
3 Votes
TTs220512_Mik26530_23
Question Help 5.
Determine the forces in all members in the truss below. The diagonal
acing members cannot
ca
y compression forces. The diagonal
aces are not joined where they cross. All joints are pin
joints.
Solution:
Support Reactions:


From geometry of figure if Ɵ is angle of inclined members with horizontal, then
tan Ɵ = 3/5 Ɵ = 30.964°
sin Ɵ = 0.5145 and cos Ɵ = 0.8575
A tensile force is expected in member CD at joint C. This will cause a compressive force in
diagonal member BD which is not allowed. Therefore, FCD = 0 and FBD = 0 .
For vertical equili
ium of joint D there must not be any force in AD.
FAD = 0
Consider horizontal equili
ium of joint C.
Consider vertical equili
ium of joint C.
Consider horizontal equili
ium of joint B. FAB = HB
FAB = 50 kN (C)
Question Help 6.
Analyse the truss shown below. The
acing members are slender and cannot...
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