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To connect members subjected to dynamic loads which one of the following type of bolts is preferable?
- a)Black bolts
- b)Turned bolts
- c)HSFG bolts
- d)Both (b) and (c) types
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
To connect members subjected to dynamic loads which one of the followi...
In bearing type of connections, the plates are in firm contact but may slip under loading until the hole surface bears against the bolt. Under dynamic loads, the nuts are liable to become loose and so black bolts are not allowed for use under such loading. In situations where small slips can cause significant effects as in beam splices, black bolts are not preferred. High Strength Friction Grip bolts (HSFG) provide extremely efficient connections and perform well under fluctuating/fatigue load conditions.
Most Upvoted Answer
To connect members subjected to dynamic loads which one of the followi...
Types of Bolts for Connecting Members Subjected to Dynamic Loads
In order to connect members subjected to dynamic loads, it is crucial to choose the appropriate type of bolts. The correct answer to this question is option 'D', which states that both turned bolts and HSFG (High Strength Friction Grip) bolts are preferable for this purpose.
1. Turned Bolts
Turned bolts, also known as finished bolts or machined bolts, are manufactured by turning a rod of steel on a lathe machine. They undergo a turning process to achieve the desired dimensions and smooth surface finish. These bolts are threaded on one end and have a hexagonal head on the other end.
2. HSFG Bolts
HSFG bolts, on the other hand, are a type of high-strength bolts that rely on friction to transfer the load between connected members. These bolts are pre-tensioned using a torque wrench or hydraulic tensioning device to achieve the desired clamping force. HSFG bolts typically have a circular head with a series of hash marks or lines on the bearing surface.
Advantages of Turned Bolts
- Turned bolts have a smooth surface finish, which reduces the risk of stress concentration and fatigue failure.
- They provide a high level of accuracy in terms of dimensions, making them suitable for precise applications.
- Turned bolts are less prone to corrosion due to their smooth surface, which helps in maintaining the structural integrity of the connection.
Advantages of HSFG Bolts
- HSFG bolts offer a higher clamping force compared to turned bolts, which enhances the load-bearing capacity of the connection.
- They exhibit excellent resistance against fatigue failure, making them well-suited for dynamic loads.
- HSFG bolts can be easily installed and tightened using standard torque wrenches or hydraulic tensioning devices.
Why Both Turned Bolts and HSFG Bolts are Preferable?
The choice between turned bolts and HSFG bolts depends on various factors such as the magnitude and nature of the dynamic loads, design requirements, and cost considerations. In certain applications, turned bolts may be more suitable due to their precise dimensions and smooth surface finish. On the other hand, HSFG bolts are preferred when a higher clamping force and fatigue resistance are required. By considering both types of bolts, engineers have the flexibility to select the most appropriate solution based on the specific requirements of the project.
In order to connect members subjected to dynamic loads, it is crucial to choose the appropriate type of bolts. The correct answer to this question is option 'D', which states that both turned bolts and HSFG (High Strength Friction Grip) bolts are preferable for this purpose.
1. Turned Bolts
Turned bolts, also known as finished bolts or machined bolts, are manufactured by turning a rod of steel on a lathe machine. They undergo a turning process to achieve the desired dimensions and smooth surface finish. These bolts are threaded on one end and have a hexagonal head on the other end.
2. HSFG Bolts
HSFG bolts, on the other hand, are a type of high-strength bolts that rely on friction to transfer the load between connected members. These bolts are pre-tensioned using a torque wrench or hydraulic tensioning device to achieve the desired clamping force. HSFG bolts typically have a circular head with a series of hash marks or lines on the bearing surface.
Advantages of Turned Bolts
- Turned bolts have a smooth surface finish, which reduces the risk of stress concentration and fatigue failure.
- They provide a high level of accuracy in terms of dimensions, making them suitable for precise applications.
- Turned bolts are less prone to corrosion due to their smooth surface, which helps in maintaining the structural integrity of the connection.
Advantages of HSFG Bolts
- HSFG bolts offer a higher clamping force compared to turned bolts, which enhances the load-bearing capacity of the connection.
- They exhibit excellent resistance against fatigue failure, making them well-suited for dynamic loads.
- HSFG bolts can be easily installed and tightened using standard torque wrenches or hydraulic tensioning devices.
Why Both Turned Bolts and HSFG Bolts are Preferable?
The choice between turned bolts and HSFG bolts depends on various factors such as the magnitude and nature of the dynamic loads, design requirements, and cost considerations. In certain applications, turned bolts may be more suitable due to their precise dimensions and smooth surface finish. On the other hand, HSFG bolts are preferred when a higher clamping force and fatigue resistance are required. By considering both types of bolts, engineers have the flexibility to select the most appropriate solution based on the specific requirements of the project.
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To connect members subjected to dynamic loads which one of the following type of bolts is preferable?a)Black boltsb)Turned boltsc)HSFG boltsd)Both (b) and (c) typesCorrect answer is option 'D'. Can you explain this answer? for Civil Engineering (CE) 2025 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about To connect members subjected to dynamic loads which one of the following type of bolts is preferable?a)Black boltsb)Turned boltsc)HSFG boltsd)Both (b) and (c) typesCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for To connect members subjected to dynamic loads which one of the following type of bolts is preferable?a)Black boltsb)Turned boltsc)HSFG boltsd)Both (b) and (c) typesCorrect answer is option 'D'. Can you explain this answer?.
To connect members subjected to dynamic loads which one of the following type of bolts is preferable?a)Black boltsb)Turned boltsc)HSFG boltsd)Both (b) and (c) typesCorrect answer is option 'D'. Can you explain this answer? for Civil Engineering (CE) 2025 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about To connect members subjected to dynamic loads which one of the following type of bolts is preferable?a)Black boltsb)Turned boltsc)HSFG boltsd)Both (b) and (c) typesCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for To connect members subjected to dynamic loads which one of the following type of bolts is preferable?a)Black boltsb)Turned boltsc)HSFG boltsd)Both (b) and (c) typesCorrect answer is option 'D'. Can you explain this answer?.
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