This post explains the necessary Inspections and testing required during the fabrication and installation of structural steel works. This is only a summary and a full customizable ITP with the required checklist in word format can be downloaded from the link given at the bottom
WHAT IS STRUCTURAL STEELWORK
Structural steel is one of the most important materials in the construction industry. It is used in many structures, in fact, heavy structures like buildings, factories, bridges, etc. Structural steelwork is a combination of reshaping and fabrication of structural steel through cutting, bending, and assembling into the required structural shape.
WHAT IS AN INSPECTION AND TEST PLAN OR ITP
Inspection and Test plans and checklists are integral parts of quality management systems not only in construction but in almost every industry where Quality Management systems are in place. It is considered to be master documents through which different parameters and actions of a process or activity would be monitored and recorded which play a vital part during the verification later or in simple terms during auditing.
In the construction industry, where there are a lot of activities, for a variety of trades such as structural, Finishes, Façade, Electrical, Mechanical, Plumbing, etc. are to be completed spanning across excavation for the foundation to handing over the stage, thereby Preparation and implementation of different inspection test plans form the most crucial part of the project management system.
To read more about ITP and how to prepare one CLICK HERE and refer to the last picture in this post to get a quick understanding of ITP’s structure and how to structure it as per the project requirements
Inspection and Test Plan For Structural Steel Works
SECTION 1 – DOCUMENTATION REVIEW
This part deals with the review and approval requirements of necessary documents needed to be completed before the structural steel works on-site is to be started. The important part is drawings including the typical details common to all the work in different areas and sections, materials as required by the project elements.
SECTION 3 – INSPECTION OF INCOMING MATERIALS
This part deals with the inspection of materials that are required for the structural steel elements. These are mainly different types of sections like beams, columns, girders etc.
The storage of materials also shall be checked whether it is followed the guidelines or standards applicable.
SECTION 4 – PRE ERECTION INSPECTION
Pre-erection inspection is important for any activity. Availability of the materials in the exact numbers as per the no and size of the structural elements are to be checked. The storage of the materials shall be checked to ensure that it is satisfactory to all parties. This stage is also divided into three stages which are inspection for materials, foundation, and other section
The important inspection points are
|Check on the pre-fabricated members|
|Check on benchmarks|
|Check on foundations|
|Check on levels and distance of foundations.|
SECTION 5 – ERECTION IN PROGRESS INSPECTION
This part deals with the points to be taken care of while the installation of structural steelwork is in progress. Some inspection points may not be on “HOLD’ during this stage and hence keen attention is required during routine site visits (SURVEILLANCE). When discrepancies/changes against the acceptance criteria are observed instruction is to be given to rectify them immediately.
The major points are
|Check on column erection|
|Check for alignment of columns|
|Check on the erection of horizontal beams, girders, and vertical bracings|
|Check on bolting|
|Check on locking of packer plates|
|Check erection of the second piece of columns|
|Check for the erection of interconnecting members|
|Check on welders|
|Check on the welding machine|
|Check on preheating|
|Check on fit-up of joints|
|Check for assembly of welding parts|
|Check on post-weld treatment|
SECTION 6 – POST ERECTION INSPECTION
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Refer to the picture at last to learn tips on How to Customize the ITP based on Project Requirements