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In a plate girder, flange angle should be
- a)Equal angle section
- b)Unequal angle with long leg horizontal
- c)Unequal angle with short leg horizontal
- d)A bulb angle
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
In a plate girder, flange angle should bea)Equal angle sectionb)Unequa...
Unequal flange angles with long horizontal legs are provided to serve the following purposes:
1. To increase the moment of inertia of the section, and
2. A large length is available for making the connection with the flange plate.
1. To increase the moment of inertia of the section, and
2. A large length is available for making the connection with the flange plate.
Most Upvoted Answer
In a plate girder, flange angle should bea)Equal angle sectionb)Unequa...
Flange Angle in a Plate Girder
Plate girders are structural members commonly used in bridges and buildings to support heavy loads. The flange angle in a plate girder plays a crucial role in providing lateral stability and resisting bending moments.
Flange Angle Options
- Equal angle section: This option provides symmetrical flanges, but it may not be the most efficient choice for resisting bending moments.
- Unequal angle with long leg horizontal: This option is preferred as it allows for a greater moment of inertia and provides better resistance to bending moments. The long leg horizontal orientation helps in distributing the load more effectively.
- Unequal angle with short leg horizontal: This option may not be as efficient as the long leg horizontal orientation in terms of resisting bending moments.
- A bulb angle: A bulb angle is not commonly used for flanges in plate girders as it may not provide the required strength and stability compared to unequal angles.
Conclusion
In summary, when selecting a flange angle for a plate girder, the unequal angle with the long leg horizontal orientation is the preferred choice due to its effectiveness in resisting bending moments and providing lateral stability.
Plate girders are structural members commonly used in bridges and buildings to support heavy loads. The flange angle in a plate girder plays a crucial role in providing lateral stability and resisting bending moments.
Flange Angle Options
- Equal angle section: This option provides symmetrical flanges, but it may not be the most efficient choice for resisting bending moments.
- Unequal angle with long leg horizontal: This option is preferred as it allows for a greater moment of inertia and provides better resistance to bending moments. The long leg horizontal orientation helps in distributing the load more effectively.
- Unequal angle with short leg horizontal: This option may not be as efficient as the long leg horizontal orientation in terms of resisting bending moments.
- A bulb angle: A bulb angle is not commonly used for flanges in plate girders as it may not provide the required strength and stability compared to unequal angles.
Conclusion
In summary, when selecting a flange angle for a plate girder, the unequal angle with the long leg horizontal orientation is the preferred choice due to its effectiveness in resisting bending moments and providing lateral stability.
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In a plate girder, flange angle should bea)Equal angle sectionb)Unequal angle with long leg horizontalc)Unequal angle with short leg horizontald)A bulb angleCorrect answer is option 'B'. Can you explain this answer?
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