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For double angles carrying tension placed back to back and connected to either side of the gusset plate, the sectional area of the section, is equal to gross sectional area of
  • a)
    section
  • b)
    section plus area of rivet holes
  • c)
    section minus area of rivet holes
  • d)
    section multiplied by the area of the rivet hole
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
For double angles carrying tension placed back to back and connected t...
Explanation:

When double angles are used to carry tension, they are usually placed back to back and connected to either side of a gusset plate. In this configuration, the sectional area of the section is equal to the gross sectional area of the section minus the area of the rivet holes.

Sectional Area
The sectional area refers to the cross-sectional area of the double angles. It is calculated by multiplying the thickness of the angles by the width of the angles.

Gross Sectional Area
The gross sectional area refers to the total cross-sectional area of the double angles, including the area occupied by the rivet holes.

Rivet Holes
Rivet holes are drilled in the double angles to allow for the connection of the angles to the gusset plate. These holes reduce the net sectional area of the angles.

Calculation
To calculate the net sectional area, we subtract the area of the rivet holes from the gross sectional area.

Net Sectional Area = Gross Sectional Area - Area of Rivet Holes

The correct answer is option 'C' because the sectional area of the section is equal to the gross sectional area minus the area of the rivet holes.

This is an important consideration in the design of connections using double angles. The net sectional area determines the strength of the connection and must be sufficient to resist the applied tension.

It is worth noting that the area of the rivet holes can be significant, especially if the number of rivets is large or if the rivet size is large. Therefore, it is important to consider the area of the rivet holes when calculating the net sectional area.
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For double angles carrying tension placed back to back and connected to either side of the gusset plate, the sectional area of the section, is equal to gross sectional area ofa)sectionb)section plus area of rivet holesc)section minus area of rivet holesd)section multiplied by the area of the rivet holeCorrect answer is option 'C'. Can you explain this answer?
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