Rivets connecting flange angles to cover plates in a plate girder are...
Rivets connecting flange angles to cover plates in a plate girder are subjected to Horizontal shear only.
The horizontal shear per unit length is given by. q = VQ. I. where V = the shear force at that section; Q = the first moment of the portion of the area (above the horizontal line where the shear is being calculated) about the neutral axis; and I = moment of inertia of the cross-sectional area of the beam.
Hence, the correct option is (A)
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Rivets connecting flange angles to cover plates in a plate girder are...
Explanation:
Plate girders are used extensively in construction and are commonly used in bridges, buildings, and other structures that require support over long spans. The girder consists of a top flange, a bottom flange, and a web that connects the two flanges. Cover plates are added to the girder to increase the strength and stiffness of the girder. Flange angles are used to connect the cover plates to the top and bottom flanges of the girder. Rivets are used to connect the flange angles to the cover plates.
Rivets are subjected to different types of loads depending on their location and function in the girder. In the case of rivets connecting flange angles to cover plates, they are subjected to horizontal shear only. Horizontal shear is the force that acts parallel to the plane of the rivet and tends to shear the rivet in half. This force is produced by the bending moment in the girder.
Vertical load is the force that acts perpendicular to the plane of the rivet and tends to compress or stretch the rivet. Rivets in the girder may be subjected to vertical load, but those connecting flange angles to cover plates are not.
Conclusion:
Therefore, the correct answer is option 'A'. Rivets connecting flange angles to cover plates in a plate girder are subjected to horizontal shear only.