Metal constructions 2, 6th semester, III ICE

Summary

The structural design should provide steel structures with the following attributes:

Overall strength and stability under the design loads
Serviceability under all normal loads and imposed deformations
Integrity, ductility and robustness against abnormal loads from extreme events
Adequate fire resistance
Durability in various natural environments (durability = the ability of a product to maintain its required performance over a given or long time, under the influence of foreseeable actions)
Buildability (the extent to which design of the buildings facilitates ease of construction, subject to the overall requirements of completed building)
Operability during the design working life
Economy: The structure should fulfill the above requirements at economic costs
Low environmental impact over the entire life cycle

The course covers the following items:

Classification of steel members; plate elements in compression, effective width, cross sections classification
Elements in tension and elements in compression: configuration, strength verifications, concept of instability - stability verifications, code provisions
Restrained and unrestrained beams in bending: type of beams, beams resistance, serviceability, elastic buckling, design approach.
Short columns, slender columns; Non-dimensional slenderness; In plane behavior, uniaxial bending, lateral torsional buckling, out of plane buckling, biaxial bending; Code design provisions
Types of plate girders, applications; Behavior of plated structural elements with slender web; Design of plated structural elements in bending; Actions induced by cranes machinery, runway beams
Cold-formed steel sections, fabrication; Cold-formed steel design; Connections; Types of applications
Plastic analysis; General; Conditions of application; Type of analysis vs. cross section class; Cyclic behavior in bending; Factors affecting the plastic resistance
Fatigue in steel elements: High cycle fatigue; Low cycle fatigue; Fatigue curves; Connection details

Understanding and awareness of the role of structural robustness
To initiate the students into the main problems related the design and verification of steel structures for civil applications. A good understanding of these problems is very important for the future graduate's career as structural engineer
Development of engineering judgment to rely on in the conceptual design stage

Simple structural configuration, evaluation of loads, analysis
Design and verification of a truss girder, including connections
Design and verification of a beam in different conditions: laterally restrained, laterally unrestrained. The verification of the beam splice connection
Design and verification of a column
Design and verification of a thin walled cold formed purlin