Technical Guidance Note (Level 2, No. 16): Design of reinforced concrete bored piles

Author: C. O'Regan (AECOM)

Date published

1 March 2018

First published: 1 March 2018

Price

Standard: £9 + VAT
Members/Subscribers: Free

Buy Now

Added to basket

Back to Previous

Technical Guidance Note (Level 2, No. 16): Design of reinforced concrete bored piles


The Structural Engineer
Technical Guidance Note (Level 2, No. 16): Design of reinforced concrete bored piles
Date published

1 March 2018

Author

C. O'Regan (AECOM)

Price

Standard: £9 + VAT
Members/Subscribers: Free

First published

1 March 2018

Buy Now
Author

C. O'Regan (AECOM)

Piled foundations are one of the first aspects of scheme design a structural engineer needs to consider during a project's development. It is at this crucial stage that, without any specialist input, the structural engineer must make recommendations based on the typically limited knowledge they have on the subject.

This Technical Guidance Note describes the method by which bored piles are designed using the current UK codes of practice, i.e. BS EN 1997 (Eurocode 7). It explains how to interpret soil conditions and design piles to match what has been discovered following a site investigation.

The note does not address the types of piling systems that are available, nor the technical issues concerning their installation; these questions are covered in Technical Guidance Note Level 1, No. 23 Introduction to piling.

The note explains how to design what is essentially a buried column of concrete to resist forces from the superstructure that are applied to it. It concerns the design of a single pile and not one that is part of a group. For information on how grouped piles differ in their design approach, the reader is directed to Cl. 6.3.3 of BS 8004:2015.

(This article was update on 9 March 2018 to correct an error in Table 6.)

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 3

Related Resources & Events

The Structural Engineer
Technical Guidance Note (Level 2, No. 9): Designing a reinforced concrete retaining wall

Technical Guidance Note (Level 2, No. 9): Designing a reinforced concrete retaining wall

Although retaining walls have been the subject of two earlier Technical Guidance Notes; No. 8 (Level 1): Derivation of loading to retaining structures and No. 33 (Level 1): Retaining wall construction, their design has not been covered. This guidance note focuses specifically on the design of reinforced concrete gravity retaining walls. There are three different forms of this type of wall, all of which are designed to resist overturning and sliding failure. The primary difference between them is their height. The taller the retaining wall, the more likely that counterforts and beams spanning between them will be necessary. This note describes how all of these forms of retaining wall can be designed. (This article was updated in October 2016 to reflect errata issued since its original publication.)

Date - 1 January 2014
Author - The Institution of Structural Engineers
Price - £0/£9
The Structural Engineer
Technical Guidance Note (Level 2, No. 12): Introduction to steel portal frames

Technical Guidance Note (Level 2, No. 12): Introduction to steel portal frames

Portal frames are a simple and very common type of framed (or skeleton) structure. Steel portal frames, in particular, are a cost-effective structural system to support building envelopes (such as warehouses and shopping complexes) requiring large column-free spaces. In general, the loads and consequent deformations for these frames are in the plane of the structure, and hence these are a 2D (or plane) frame structure. Due to the practical requirement of having a clear space between the supports of a portal frame, providing in-plane bracing is generally not feasible. Consequently, these frames undergo larger deflections and are prone to sway laterally, even under the vertical loads. The concept of sway frames is addressed in more detail in Technical Guidance Note No. 10 (Level 1) Principles of lateral stability. Thus, in spite of the inherent simplicity of portal frames, many aspects of their analysis, design and detailing require careful consideration. Portal frames can be made from concrete, timber and even glass but the vast majority, in the UK certainly, are constructed from steel. This Technical Guidance Note gives an introduction to steel portal frames and their preliminary analysis. Steel portal frames usually have pinned bases and moment connections at the column/rafter interface and mid-span apex splice in the rafter. Although there are other forms of portal frame (described in Elastic Design of Single- Span Steel Portal Frame Buildings to Eurocode 3), for the sake of brevity and clarity this note will be dedicated to this particular form. (This article was updated in October 2016 to reflect errata issued since its original publication.)

Date - 29 May 2014
Author - The Institution of Structural Engineers
Price - £0/£9
The Structural Engineer
Technical Guidance Note (Level 2, No. 11): Steel fibre reinforced concrete ground bearing slabs

Technical Guidance Note (Level 2, No. 11): Steel fibre reinforced concrete ground bearing slabs

This Technical Guidance Note describes how steel fibre reinforced concrete ground bearing slabs are designed. This is a relatively recent innovation that continues to evolve. As such, this note aims to motivate the design and development of steel fibre reinforced ground bearing slabs, based on the most up-to-date information available at the time of writing.

Date - 1 May 2014
Author - The Institution of Structural Engineers
Price - £0/£9