Introduction to Steel Structure
Steel structures are those structures which are made of steel components connected with each other to sustain and share applied loads with adequate safety and serviceability. As compared to other structures like concrete structure and timber structure in the place where other engineering materials are scarce and structure is supposed to work for the greater magnitude of loads, steel structures are the better alternative. The structural members may be in axial loading, torsion or bending or in their combined effect, depending upon their orientation, structural use, and type of loading. The various types of steel structures are the truss, tower structure, bridge, staircase, etc.
Structural Steel and Classification of Steel Sections
Structural steel can be defined as a steel construction material which is formed with a specific shape or cross section with certain standards of chemical composition and mechanical properties. The main governing factors of structural steel for their choice and use in the structure are shape, size, composition, strength, malleability, ductility, durability, storage, etc. The products of structural steel are available in various shapes and sizes so that the structural engineer could select the suitable sections to suit the requirements as per the design. Depending upon the manufacturing process, the steel sections are classified as hot -rolled section and cold -rolled or cold –formed section.
Method of Analysis and Design
Structural analysis is necessary to determine the internal forces that are developed in members of the structures. For determining the design forces and moments in a member or connection complying with requirements of the limit stability, strength, and serviceability, section 4 of IS code 800:2007 permits the methods of analysis given below:
Design Process and Basis for Design
The design process is such a process which decides shape, size and connection details of the members so that the structure that is being designed will perform satisfactorily during its intended life. With an appropriate degree of a safety, structures should have certain basis given below:
"Design of Steel Structures" K.S. Sai Ram, PEARSON Education
"Design of Steel Structures" Ram Chandra, Standard Book House
"Limit State Design of Steel Structures" S.K. Duggal Tata McGraw-Hill Publishing Com
"Design of Steel Structures" L.S. Negi, Tata McGraw-Hill Publishing Com.