Steel section connections| Design of steel structures

Connections in steel design.

Types of connections:

1. Riveted connections.
2. Bolted connections.
3. Welded connections.

Riveted connections :

A riveted connection is a type of mechanical fastener that is used to join two or more components together. It involves inserting a metal pin (known as a rivet) through aligned holes in the components and then deforming the end of the rivet to secure it in place. Riveted connections are commonly used in the construction of bridges, buildings, and other structures, as well as in manufacturing and engineering applications. The strength of a riveted connection depends on the size and type of rivet used, as well as the material properties of the components being joined. Riveted connections are known for their durability and resistance to loosening, making them a popular choice for many applications.

Bolted connections :

A bolted connection is a type of fastener that is used to join two or more components together. It involves inserting a bolt through aligned holes in the components and securing it in place with a nut or by threading the end of the bolt. Bolted connections are commonly used in the construction of bridges, buildings, and other structures, as well as in manufacturing and engineering applications. The strength of a bolted connection depends on the size and type of bolt used, as well as the material properties of the components being joined. Bolted connections can be designed to be either tension- or shear-loaded, and are often used in applications where disassembly or adjustment is required. Additionally, bolted connections are relatively easy to install and can be designed to be reusable.

There are several types of bolted connections, including:

• Flange connection: A type of bolted connection used to connect two or more components with a flange, typically used in pipe or ductwork systems.
• Tension connection: A type of bolted connection designed to resist forces acting along the axis of the bolt, typically used in the construction of bridges and buildings.
• Shear connection: A type of bolted connection designed to resist forces acting perpendicular to the axis of the bolt, typically used in the construction of bridges and buildings.
• Slip-critical connection: A type of bolted connection designed to resist shear forces, where the bolts are tightened to a specific torque to prevent slipping between the connected components.
• Friction-grip connection: A type of bolted connection designed to resist shear forces, where the tightness of the bolts provides friction between the connected components to transfer loads.
• Combined tension and shear connection: A type of bolted connection that is designed to resist both tension and shear forces.
Each type of bolted connection has specific design considerations, and choosing the right type depends on the load conditions and the requirements of the application.

Types of bolted joints :

• Lap joint: This type of joint is commonly used for joining two parts of the same thickness. The two parts overlap each other and are joined with bolts.
• T-joint: A T-joint is formed when a piece of material is attached to a flat surface at a 90-degree angle. The attachment is made with bolts.
• Butt joint: This type of joint is used to join two parts of equal thickness. The two parts are aligned end-to-end and joined with bolts.
• Corner joint: A corner joint is used to join two parts that meet at a right angle. The two parts are joined with bolts.
• Flange joint: A flange joint is a type of bolted joint that is used to connect two parts that have flanges. The flanges are bolted together to form a tight, leak-proof seal.
• tension joint: A tension joint is a type of bolted joint that is designed to withstand tension forces. The bolts in this type of joint are tightened to a specific torque, which creates tension in the joint and prevents it from coming apart.
These are some of the most commonly used bolted joints. The specific type of joint used will depend on the application, load requirements, and design constraints.

Welded connections :

A welded connection is a type of fastener that is used to join two or more metal components together by heating and melting the surfaces to be joined and fusing them into a solid mass. Welding is a commonly used method for fabricating structures and components in the construction, manufacturing, and engineering industries. Welded connections are known for their high strength and ability to resist high loads, making them a popular choice for many applications, such as bridges, buildings, and heavy equipment. The strength of a welded connection depends on several factors, including the type of welding process used, the size and type of filler material used, and the material properties of the components being joined. However, welded connections can be more time-consuming and difficult to install compared to other fastener types