Technical Guidance Note (Level 2, No. 22): Workmanship and quality inspections by the structural eng

Author: Chris O'Regan

Date published

2 September 2019

First published: 2 September 2019

Price

Standard: £9 + VAT

Members/Subscribers: Free

Buy Now

Added to basket

Back to Previous

Technical Guidance Note (Level 2, No. 22): Workmanship and quality inspections by the structural engineer during construction


The Structural Engineer
Technical Guidance Note (Level 2, No. 22): Workmanship and quality inspections by the structural eng
Date published

2 September 2019

Author

Chris O'Regan

Price

Standard: £9 + VAT

Members/Subscribers: Free

First published

2 September 2019

Buy Now
Author

Chris O'Regan

Inspection of works on site during construction is a high-risk activity which requires skill and experience. Inspections are of the utmost importance as they help to reduce the risk of defects being present within the structure of the building – although they can never guarantee it. They should only be performed by those who are familiar with the design of the works and the limitations of construction methods.

The construction phase of a project is the stage where its design is implemented. Unforeseen variables have an impact on the assumptions made and changes may occur to the original design. Workmanship is also important, as the structural model used in design assumes good practice will be followed on site. For materials for which the partial factors used in design vary depending on the level of workmanship/supervision, it is essential to confirm that design assumptions have not been jeopardised.

It is typically the responsibility of the main contractor, supported by the specialist contractors’ designers, to ensure that the works are delivered in accordance with the design documentation.

The principal way workmanship is assured is through supervision and oversight by the main contractor. Any inspection carried out by the client’s design team, including by the structural engineer, will be in addition to the contractor’s monitoring of progress of the works. Nonetheless, it is good practice for such supplemental inspections to occur.

Before attending site, it is important that the inspecting engineer understands the scope of the site inspection and its purpose; any review can only be based on a sampling of the works that are available at the time. Where intrusive works are required to achieve the objective of the inspection, the inspecting engineer must provide a detailed specifi cation of what is to be done. Before attending site, they should confi rm that the necessary opening-up works have been completed.

This Technical Guidance Note concerns the inspection of structural elements that are typically present within buildings during their construction and/or alteration. It describes the elements, aspects of the elements which consistently prove to be problematic and, to some extent, how to detect defects. The note assumes that the inspecting engineer has suitable levels of competency.

It should also be borne in mind that, no matter who is employing the engineer, they have a duty of care to the public to ensure a building is safe.

Additional information

Format:
PDF
Pages:
5
Publisher:
The Institution of Structural Engineers

Tags

Technical Guidance Notes Technical Guidance Notes (Level 2) Technical Guidance Notes Technical Issue 9

Related Resources & Events

The Structural Engineer
Technical Guidance Note (Level 2, No. 21): Design and detailing of base plates to steel columns

Technical Guidance Note (Level 2, No. 21): Design and detailing of base plates to steel columns

This Technical Guidance Note describes the design and detailing of base plates – the primary means by which steel-framed structures transmit vertical loads into their foundations. 

Date - 1 May 2019
Author - C. O'Regan (AECOM)
Price - £0/£9
The Structural Engineer
Technical Guidance Note (Level 2, No. 6): Designing a laterally loaded masonry wall

Technical Guidance Note (Level 2, No. 6): Designing a laterally loaded masonry wall

Until relatively recently, masonry was the major load bearing component in a building structure. With the advent of steel and concrete frame technologies, masonry has become a part of a building’s cladding envelope and as such is more prone to being exposed to lateral loads than vertical ones.

This Technical Guidance Note concerns the design of masonry walls that are subject to lateral loads i.e. they are being used as a cladding element. It will discuss the way in which the material is assessed against how it is being restrained and its geometry. All of these factors have an impact on the design of masonry walls as well as the mortar within them and the exposure conditions. This is discussed in Technical Guidance Note 27 (Level 1) and should be read in conjunction with this guide.

(This article was updated in October 2016 to reflect errata issued since its original publication.)

Date - 1 June 2013
Author - The Institution of Structural Engineers
Price - £0/£9
The Structural Engineer
Technical Guidance Note (Level 2, No. 2): Designing a steel column

Technical Guidance Note (Level 2, No. 2): Designing a steel column

The subject of this guide is the design of columns in simple construction to BS EN 1993-1-1 – Eurocode 3: Design of Steel Structures – Part 1-1: General Rules for Buildings. It covers rolled steel ‘I’ and ‘H’ sections that are acting as columns within a braced steel frame structure.

Date - 1 February 2013
Author - The Institution of Structural Engineers
Price - £0/£9