The document discusses the use of steel in conventional construction. It notes that steel construction involves assembling prefabricated steel components on-site using bolted connections. Steel offers advantages over other materials like speed of construction, safety, cost-effectiveness, strength and durability. Prefabrication allows for quality control and reduced waste. The document outlines several benefits of steel construction such as faster construction times, improved safety due to less on-site labor, cost savings from quicker completion, robustness to withstand overloads, precision of prefabricated components, lighter weight structures, and flexibility.

1. DEPARTMENT OF
CIVIL ENGINEERING
Conventional Constructions
Steel
Er. Ramprasad Kumawat
(M.Tech)

2. Conventional Constructions
• Masonry,
• Timber,
• Steel and
• Concrete Constructions (CC)
• Introduction to Additive Construction methods
using concrete (3D Printed Building)

3. Steel
• The erection of structural steelwork consists of
the assembly of steel components into a frame on
site.
• The processes involve lifting and placing
components into position, then connecting them
together.
• Generally this is achieved through bolting but
sometimes site welding is used.
• The assembled frame needs to be aligned before
bolting up is completed, and the structure handed
over to the principal contractor.

5. • Steel has a unique combination of properties that
make it an ideal construction material.
• Steel offers a number of significant advantages
relative to other building materials, including:
• speed of construction
• safety
• value for money
• robustness and ductility
• prefabrication
• reduced weight
• architectural expression
• configuration adaptability
• sustainability

6. Speed of construction
• The majority of structural steelwork is
prefabricated, with very little site-work
required other than assembly via bolted
connections.
• This leads to fast construction times and, with
attention to staged delivery,

7. Safety
• With up to 70% labour reduction possible
using a steel solution compared to alternatives,
fewer people equals a safer construction site.
• Prefabrication and dedicated lifting points on
assemblies make for defined well-controlled
erection processes.
• Steel decking and integrated edge protection
facilitate safer working platforms.

8. Value for money
• Faster construction means earlier handover and
tenancy. Smaller member sizing (in particular,
columns) equals greater net let table space.
• Longer spans equates to more flexible internal
spaces.

9. Robustness and ductility
• Steel is an inherently ductile material,
responding to overload in a controlled fashion
with managed load retention.
• The size and shape of steel members can be
configured to provide a level of structural
robustness not easily achievable with other
more brittle construction materials.

10. Prefabrication
• Prefabrication of structural steelwork is the
‘business as usual’ case.
• Prefabrication brings fabrication shop control
over quality and the dimensional accuracy
of computer numerical control (CNC) machinery.
• Precise control over quantities reduces waste
and workflows incorporating seamless
integration back to the 3D design models ensure
errors are minimized and architectural intent
preserved.

11. Reduced weight
• A steel structure is intrinsically lighter than
an equivalent concrete structure due to the higher
strength and stiffness of steel.
• With lightness comes reduced load on
foundations, hence smaller foundations and an
ability to perform better for some ground
conditions.
• Weight reduction enables retrofitting onto
existing structures for extension or
refurbishment.
• Adding extra floors to existing structures is a
common example.

13. • THANKS!