Moment Connection
Moment Connection: A rigid or semi-rigid connection between structural members that resists rotation, providing stability and strength to frames that must withstand lateral forces.
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Definition
A connection between two structural members that is highly resistant to rotation between the members, as differentiated from a pin connection, which allows rotation. A rigid or semi-rigid column-to-beam connection.
Purpose
Moment connections provide structural stability by resisting rotational forces at the joints, ensuring that the connected members act as a single unit. They are essential in the construction of frames that must withstand lateral loads, such as those from wind or earthquakes.
Examples of Use
- Steel frames: Connecting beams and columns in steel-framed buildings to resist lateral forces.
- Bridges: Using moment connections in the construction of bridge supports to ensure stability and load distribution.
- High-rise buildings: Providing rigidity to the structural framework to resist sway and lateral movement.
Related Terms
- Pin Connection: A type of joint that allows rotation between connected members.
- Rigid Frame: A structural system with moment connections that provide resistance to lateral forces.
- Shear Connection: A connection that primarily resists shear forces rather than rotational forces.
Notes
- Moment connections require precise design and construction to ensure they provide the necessary resistance to rotational forces.
- They are often used in conjunction with other types of connections and structural systems to achieve overall stability and strength.
- Regular inspection and maintenance are crucial to ensure the integrity and performance of moment connections over time.
Related Terms
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