Author: L. Hurst and A. Dutton (Consultants, Hurst Peirce + Malcolm LLP)
1 July 2015
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L. Hurst and A. Dutton (Consultants, Hurst Peirce + Malcolm LLP)
This article suggests ways in which readily available technology (a smartphone or tablet) can provide engineers and construction professionals with a simple tool to test vibrations. This is demonstrated on the new feature staircase (a lightweight and unusual structure) at the Institution's HQ in London. A free-to-download vibration testing app (beta version) has been developed by Expedition, and is introduced here.
Post-tensioned (PT) concrete floors are now widely used in the UK, particularly for high-rise buildings. This article provides information on how to scheme a PT slab and how the use of post-tensioning affects the rest of the structure. A more detailed guide to the design of PT floors can be found in The Concrete Society's Technical Report 43 (TR43): Post-tensioned concrete floors: Design handbook.
This article looks at some aspects of floor loading and how its application has changed for the better. It encourages a careful consideration of loadings to avoid unnecessary and irreversible loss of fabric through the application of significant strengthening schemes, cutting away existing historic framing.