The rules which are used to design the trusses are having various rule...
The set of rules used to design the trusses are having various rules. Of them one is that the smooth pins are used to join the members. The joint are generally formed by welding the materials at the ends of the trusses. Which gives strength to the design.
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The rules which are used to design the trusses are having various rule...
The given statement states that the rules used to design trusses include the prohibition of using smooth pins to join the members. The correct answer is option 'A', which means the statement is correct.
Explanation:
Trusses are structural frameworks made up of interconnected members that are designed to carry loads and distribute them efficiently. These members are typically connected at their ends using various types of joints or connections. Smooth pins are not used to join the members of the trusses due to several reasons.
1. Lack of Friction: Smooth pins lack the necessary friction required to prevent relative motion between the connected members. This means that under load, the pins may slide or rotate, leading to an unstable and unsafe truss structure.
2. Poor Load Distribution: Smooth pins do not provide effective load distribution across the joint. The load applied to the joint may concentrate at specific points, leading to localized stress concentrations and potential failure.
3. Limited Strength: Smooth pins have limited strength compared to other types of connectors, such as bolts or welds. They may not be able to withstand high loads or dynamic forces, making them unsuitable for truss designs that require strength and stability.
4. Assembly and Disassembly: Smooth pins are difficult to assemble and disassemble, especially in larger truss structures. Other types of connectors, such as bolts, offer more convenience and ease of assembly, allowing for easy maintenance and modification of the truss.
5. Safety Considerations: The use of smooth pins in truss connections may compromise the overall safety of the structure. The potential for failure and instability increases, posing a risk to the structure and the individuals working or living around it.
In conclusion, the statement that smooth pins are not used to join the members of trusses is correct. Other types of connectors, such as bolts or welds, are preferred due to their superior load distribution, strength, ease of assembly, and safety considerations.