16 Questions
What is steel?
An alloy made by combining iron and other elements, with the most common being carbon.
What are the categories of structural steel based on carbon content?
Low Carbon Steel, Mild Steel, Medium Carbon Steel, High Carbon Steel
How are steel shapes formed in the hot-rolled procedure?
By rolling hot steel in a semi-solid state at a temperature above the recrystallization temperature.
What is the process for forming steel shapes in the cold-formed procedure?
Rolling sheets from sheets, plates, or flats in rolling machines or by press breaking at a temperature below the recrystallization temperature.
What are the methods used to join structural steel shapes together?
Riveted, bolted, or welded connections according to specification/standard.
What is the effect of increasing carbon content in steel?
It increases strength but decreases ductility.
What is the process of creating cold-formed steel (CFS) goods?
Stamping, rolling, or pressing thin steel sheets
What is the minimum yield strength required for the CFS construction process?
At least 280 MPa
What is the category of steel used for making construction materials in a variety of shapes?
Structural steel
What are the efficient structural sections for formwork and trusses?
Hollow structural section (HSS-Shape) and steel tubes (circular hollow steel)
For what purposes are flat sections used in steel structures?
Steel grillwork for windows and gates
What are the widely used structural steel shapes resembling the alphabet 'T'?
T-sections
What are the angle sections (ISA) extensively used for in structural steel works?
Roof trusses and connecting members for different structures
What is the primary use of channel sections in steel structures?
Beams and columns
What is the primary use of I-sections in steel structures?
Columns, beams, purlins in trusses, and grillage foundations
What type of steel sections are very stiff in respect to their cross-sectional area and can support a high load without bending?
Most structural steel shapes, such as I-beams
Test your knowledge of steel and wood structures in architecture with this quiz based on Lecture 5 from the BSc. Program in Architecture, Building Materials and Construction at Addis Ababa Science & Technology College of Engineering.
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