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A pin-connected frame is a type of structural system used in engineering that consists of beams and columns connected by pins or hinges at their connections. This allows for the frame to be able to rotate and move, making it more flexible and able to withstand different types of loads.
A pin-connected frame works by distributing the forces and loads applied to it through the use of pins or hinges at the connections between the beams and columns. This allows for the frame to move and rotate, reducing the stress and strain on individual members and making it more stable.
Some advantages of using a pin-connected frame include its flexibility and ability to withstand different types of loads, its simplicity in design and construction, and its ability to be easily disassembled and reassembled for transportation or modifications.
One limitation of a pin-connected frame is that it may not be as strong as other types of structural systems, such as rigid frames, and may require additional support or bracing. Additionally, the pins or hinges used in the connections may experience wear and tear over time, requiring maintenance or replacement.
Pin-connected frames are commonly used in engineering practice for various structures, such as bridges, roofs, and buildings. They are also used in temporary structures, such as scaffolding, due to their ease of assembly and disassembly. They are often used in situations where flexibility and adaptability are important, such as in earthquake-prone areas.