Technical Guidance Note (Level 2, No. 14): Design of unrestrained timber beams

Author: C. O'Regan (AECOM)

Date published

20 November 2017

Price

Standard: £9
Members/Subscribers: Free

Buy Now
Back to Previous

Technical Guidance Note (Level 2, No. 14): Design of unrestrained timber beams

The Structural Engineer
Technical Guidance Note (Level 2, No. 14): Design of unrestrained timber beams
Date published

20 November 2017

Author

C. O'Regan (AECOM)

Price

Standard: £9
Members/Subscribers: Free

Buy Now
Author

C. O'Regan (AECOM)

This Technical Guidance Note addresses the design of timber elements that are unrestrained against lateral torsional buckling. It explains how such beams are analysed and designed. The impact of notching the supports of beams is also considered with respect to the shear capacity of the beam.

For clarity and brevity, this note only covers solid and glued laminated (glulam) timber elements; compound and composite beams, such as flitch beams, are not considered. The connections within timber frame assemblies will be addressed in a future note.

Readers should also be aware that this note forms part of a trio of Technical Guidance Notes leading to the design of bespoke timber trusses – assemblies made from unrestrained timber beams and posts. Notes on the design of timber posts and bespoke timber trusses will follow later in the series.

Additional information

Format:
PDF
Pages:
4
Publisher:
The Institution of Structural Engineers

Tags

Technical Guidance Notes Technical Guidance Notes (Level 2) Technical Guidance Notes Technical Issue 11

Related Resources & Events

The Structural Engineer
<h4>Technical Guidance Note (Level 2, No. 9): Designing a reinforced concrete retaining wall</h4>

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
<h4>Technical Guidance Note (Level 2, No. 8): Designing a pile-cap</h4>

Technical Guidance Note (Level 2, No. 8): Designing a pile-cap

This Technical Guidance Note concerns the design of pile-caps for small groups of piles e.g. 2-4 piles. It relies on the strut and tie method to determine the amount of reinforcement required in the pile-cap; which is dependent upon the depth of the cap, the magnitude of the axial load being placed upon it, the cap’s concrete strength and the pile size and spacing.

Date - 28 November 2013
Author - The Institution of Structural Engineers
Price - £0/£9
The Structural Engineer
<h4>Technical Guidance Note (Level 2, No. 7): Designing a concrete pad foundation</h4>

Technical Guidance Note (Level 2, No. 7): Designing a concrete pad foundation

The purpose of a pad foundation is to spread a concentrated force into soil. They are one of the most simple and cost effective types of footings for structures. Provided the founding soil is of sufficient strength and is not too deep to reach, pad foundations are the preferred solution for foundations due to the straight forward nature of their design and construction. This Technical Guidance Note covers the design of concrete pad foundations, both mass and reinforced concrete forms. It will not, however, discuss how the bearing capacity of the soil is determined, as that is explained in Technical Guidance Note 19 (Level 1) Soil bearing capacity. It is suggested that you read that text in conjunction with this, in order to gain a more comprehensive understanding of the topic. (This article was updated in October 2016 to reflect errata issued since its original publication.)

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