STEEL CONNECTIONS
The steel structures are constructed by properly
connecting the available standard sections. The connections are an important
part of steel structure and are designed more conventionally than any
individual members. There is a discrepancy between the actual behaviour and the
analysis of steel structure is large, therefore the connections are complex to analyse
and design. When the structural member fails in case of overloading then there
is a general practice to prefer the individual member rather than the
connections, therefore this kind of practice affects many structural members.
The cost of structural steel consists of major portion of connections and that
is the reason primary importance should be given to the design of connections
for safety and economy of structure.
The connections are generally provided in the
following cases:
- When
there is the requirement to cater the heavy load and long span then the
built-up sections are to be provided. In this case, this section should be
connected together to get a good section.
- In
case of longer span, the length of standard section needs to be connected
with other section. In this case to connect the multiple sections proper
design of connections are important.
- The
different members need to be connected at the end (for example secondary
beams to be connected to primary beam, column, footings, etc).
The classification in the connections provided in
the steel structure is as follows:
- Riveted
connections
- Bolted
connections
- Welded
connections
- Pinned
connections
