### Different types of space frame connections.
**Bolted connections**.
Bolted connections are one of the most common types of connections used in space frames. This type of connection uses bolts to join different elements of the space frame together. Bolted connections are easy to assemble and disassemble, making them ideal for structures that need to be frequently modified or moved.
**Welded connections**.
Welded connections involve fusing two or more elements of the space frame using heat and pressure. This type of connection is strong and rigid, providing excellent stability to the structure. However, welded connections are permanent and difficult to disassemble, making them less suitable for structures that require frequent modifications.
**Node connections**.
Node connections are special types of connections used in space frames where multiple elements meet at a single point. Nodes are designed to distribute forces and loads evenly across the different elements, providing structural integrity to the space frame. Node connections can be bolted, welded, or a combination of both, depending on the specific requirements of the structure.
**Hinged connections**.
Hinged connections allow for rotational movement between two elements of the space frame. This type of connection is useful in structures that need to accommodate changes in angle or alignment, such as roof trusses or long-span bridges. Hinged connections can be designed to be bolted or welded, depending on the level of movement required.
**Slip connections**.
Slip connections allow for slight movement between two connected elements, typically in the form of sliding or telescoping. This type of connection is useful in structures that need to accommodate thermal expansion or contraction, such as long-span roofs or bridges. Slip connections can be designed with bolts or pins to allow for controlled movement without compromising structural integrity.
In conclusion, there are various types of space frame connections, each with its own advantages and applications. Bolted connections are easy to assemble and disassemble, welded connections provide strength and rigidity, node connections distribute forces evenly, hinged connections allow for rotational movement, and slip connections accommodate thermal expansion. By choosing the right type of connection, designers can ensure the structural integrity and functionality of space frame structures.
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