When the axis of load lies in the plane of rivet group, then the most heavily loaded rivet will be the one which (where, Fa is the load shared by each rivet due to axial load and Fm is the shearing load due to moment in any rivet.)
A. Is at the maximum distance from CG of the rivet group
B. Is at the minimum distance from CG of the rivet group
C. Gives the maximum angle between the two forces Fa and Fm
D. Gives the minimum angle between the two forces Fa and Fm
Answer: Option D
This Question Belongs to Civil Engineering >> Design Of Steel Structures
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Rivets connecting flange angles to cover plates in a plate girder are subjected to
A. Horizontal shear only
B. Vertical load only
C. Both (A) and (B)
D. None of the above
When the axis of load lies in the plane of rivet group, then the rivets are subjected to
A. Only shear stresses
B. Only tensile stresses
C. Both (A) and (B)
D. None of the above
Hudson’s formula gives the dead weight of a truss bridge as a function of
A. Bottom chord area
B. Top chord area
C. Effective span of bridge
D. Heaviest axle load of engine
It's based on parallelogram law of vector addn
F=√(Fa^2+Fm^2+2 Fa FM cos®) so as value of ® reduces value of cos function increases so
both a and d
A will be the answer