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Fabrication and erection of steelwork

Introduction :

Introduction : Introduction

Fabrication is the process of preparing components ready for assembly on site. Erection is the process of assembling fabricated components on site, and with careful planning can be completed relatively quickly.

Basic erection planning :

Basic erection planning : Basic erection planning

In principle, steel erection involves positioning, aligning and securing the components on prepared foundations to form a complete frame.

Dispatch :

Dispatch : Dispatch

The steelwork is transferred to the finished stockyard to await bundling and wiring of loose components for loading on to vehicles together with site assembly bolts, ready for dispatch to site.

Erection :

Erection : Erection

Erection of structural steelwork consists of the assembly of steel components into a frame on site, and it can be a significant project cost.

Fabrication and the fabricator's premises :

Fabrication and the fabricator's premises : Fabrication and the fabricator's premises

Fabrication consists of cutting pieces of steel and connecting them together. Fabrication yards have facilities for storage, processing and dispatch.

Foundations :

Foundations : Foundations

Before erection commences the position of the column bases, most usually laid by others, should be verified by the steel contractor.

Inspection and quality control :

Inspection and quality control : Inspection and quality control

Inspection and checking occurs at each stage in the fabrication process and after final assembly.

Joints :

Joints : Joints

Column splice joints: Columns in multi-storey buildings cannot be erected as a single length and will need to be spliced.

Lateral stability :

Lateral stability : Lateral stability

It is important to ensure stability at all stages during construction.

Primary fabrication operations :

Primary fabrication operations : Primary fabrication operations

The principal activities associated with fabrication of steelwork include cutting, forming holes, assembling and attaching components, cleaning and protecting.

Sequence of erection :

Sequence of erection : Sequence of erection

The principle is to establish a stable unit as quickly as possible, and to attach subsequent elements directly or indirectly to this.

Setting-out guidance :

Setting-out guidance : Setting-out guidance

The design and erection should account for the various interfaces with the structure, and the associated tolerances.

 

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