In multistory braced frames, simple, or Type PR connections of beams to columns are often made using beam seats.
These may be made with heavy angles or, if loads are large, a stiffened seat may be used. The stiffened seat is usually made by welding two plates in the form of a tee.
RISAConnection: RISAConnection is a popular software for designing steel connections. It allows you to design a wide range of beam-to-beam and beam-to-column connections, including shear connections, moment connections, and bracing connections. RISAConnection provides comprehensive design reports, detailing the connection capacity checks and allowing customization of connection details.
IDEA StatiCa Connection: IDEA StatiCa Connection is another widely used software for the design of steel connections. It offers advanced analysis and design capabilities for various connection types, such as moment-resisting, pinned, and bracing connections. IDEA StatiCa Connection integrates with popular structural analysis software, enabling seamless transfer of data and results.
RAM Connection: RAM Connection, developed by Bentley Systems, is a powerful software for steel connection design. It provides a range of connection design options, including moment connections, bracing connections, and shear connections. RAM Connection integrates with structural analysis software like RAM Structural System and STAAD.Pro for streamlined analysis and design workflows.
Welded Connections: In welded connections, beams are joined by welding the ends or flanges together. This type of connection provides excellent strength and rigidity.
Bolted Connections: Bolted connections involve using bolts, nuts, and washers to join beams. This type of connection allows for easy assembly, disassembly, and modification.
Riveted Connections: Although less common nowadays, riveted connections were widely used in the past. They involve driving a metal rivet through aligned holes in the beams and then deforming the end to form a permanent connection. Riveted connections offer good strength and durability.
Load Analysis: Begin by understanding the loads acting on the beam and the connection. Consider both the applied loads (e.g., dead loads, live loads) and any anticipated dynamic loads (e.g., wind loads, seismic loads). The connection design should be able to handle these loads safely.
Material Selection: Choose appropriate materials for the beam and the connection components. Consider factors such as the strength, ductility, and corrosion resistance of the materials based on the environmental conditions and the load requirements.
Connection Type: Select the most suitable connection type based on the specific project requirements and structural system. Common connection types include bolted connections, welded connections, and composite connections. Each type has its advantages and limitations, so choose the one that best suits your design criteria.
Bolted Connections: Bolted connections involve using bolts to join the beams together. The design of bolted connections typically follows established codes and standards such as the American Institute of Steel Construction (AISC) Manual or Eurocode.
Welded Connections: Welded connections involve joining beams by welding the connecting plates or members. The design of welded connections also follows relevant codes and standards, such as the AISC Manual or Eurocode. The calculation methods for welded connections include determining the required weld size, checking the weld strength, and considering the applied loads, material properties, and design factors of safety. Weld design also considers factors such as the type of weld, joint configuration, and welding procedures.
Moment Connections: Moment connections are used to transfer bending moments between beams. The design of moment connections requires evaluating the capacity of the connection to resist bending moments. Methods such as the double angle cleat connection, end plate connection, or flange plate connection are commonly used.