Author: The Institution of Structural Engineers
26 October 2012
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The Institution of Structural Engineers
One of the most common structural elements is the timber floor joist. This is normally found in residential properties, but can also be seen in medium sized commercial developments. This Technical Guidance Note will explain the principles behind the design of timber floor joists and provide a worked example. All of the advice given will be in accordance with BS EN 1995-1-1 Eurocode 5: Design of Timber Structures – Part 1-1: General – Common rules and rules for buildings. (This article was updated in October 2016 to reflect errata issued since its original publication.)
Recently, the technology behind post fix anchors has become increasingly complex. This guidance note has been developed in order to provide some clarity around the multitude of options that can be presented to a designer required to specify anchors.
This Technical Guidance Note concerns lateral loads that are applied to barriers and wheel axle loads from vehicles. Barrier loading is dealt with slightly differently to other forms of imposed loading. The nature of the loading can vary from people leaning against barriers to vehicles colliding with them at speed. Axle loading from vehicles has to be treated somewhat differently to other forms of imposed loading. While it is possible to assume a blanket area load to represent them, it is the point load from each wheel that needs closer attention.