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Introduction

Connections are the most important and basic need of the steel structure or element, without connection the steel structure cannot construct properly. Connections connect the available standard sections of steel make huge structure. Failure of structure can be occurred if proper connection not provided. So the design of proper connections is important.

For safety and economy of structure, the major portion of cost of steel structure consists of connections.

The Connections are provided in following cases:

· When there is need to supply the heavy load and long span then the built-up- sections is to be provided. In such case, this section should be connected together to get good section.