Construction of Steel Structure: Prefabrication, Construction Sequence, Safety, Efficient Site Management, and Material Handling

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CONSTRUCTION OF STEEL STRUCTURE
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CONSTRUCTION OF STEEL STRUCTURE

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Prefabrication of the steel components
Prefabrication refers to the practice of assembling steel components of a structure in a
manufacturing site or a factory and then transporting sub-assemblies or complete assemblies to
the construction site, where the structure is to be erected. Similarly, prefabricated steel
components refer to the steel structures that are delivered to the site after the construction
workers have completely assembled he structure (McFarland and Wehbe2014). Usually before
the steel structure is installed in the site the construction workers will need to construct an
appropriate foundation in the ground. The foundation will offer support to the entire weight of
the structure.
Steel fabrication refers to the process of cutting, grinding, bending, welding. Drilling and
generally crafting various steel components. The process of fabrication is systematic and every
step is important. Some of the steel components in this structure that will be prefabricated
include; welded columns, welded beams, unique angles, channels, equal angles, all this
component will be of a wide range of sizes depending on the location within the structure. The
components must meet the minimum requirements of AS/NZS 3679.2.
Construction sequence
The construction will involve the assembling together of fabricated components to form the
skeletal structure (Sawer 2018). The construction is usually carried out by the construction
contractor. The construction of the fabricated steel structures requires substantial planning in
terms of member assembly, material delivery, member connection and material handling.
Construction of fabricated steel structure can be made much accurate and safer, false work,
temporary support, staging is erected. Before the fabricated materials are erected they should be

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verified with respect of their marker numbers. And the architectural and structural plans of the
structure. The fabricated components should be stacked in a way that will not affect the
construction sequences.. The table below show the sequence of activities during construction.
S.No. Sequence of activities
1
2
3
4
5
6
Receiving the prefabricated components from the manufacturing site and stacking temporarily
if there need.
Lifting and placing the fabricated components and the temporary support in place.
Temporarily bracing the system to ensure there is stability during construction
Aligning and permanently connecting the components by either welding or bolting
Connecting the cladding materials to the structural steel skeleton
Carrying out painting and other finishing.
Table 1: Construction sequence of the prefabricated steel structure.
Ease and safe erection procedures
There are many procedures that are involved in the construction of the prefabricated steel
structure. All the procedures that are involved in the construction are very important in achieving
the safety of the structure and the construction process.
The first step involved in the erection of the prefabricated steel structure is the construction of
the foundation. The construction plans must be carefully followed to ensure that the exact
location of the anchor bolts and other joining are set out well (Hua, Oliphant and Hu 2016).
All the unskilled workers who will be involved in the construction of the structure will undergo a
train for safety and proper erection procedures to minimize time wastage in being guided what to
do at a given time.