Author: D. McBride (Robert Bird Group)
3 July 2017
First published: 3 July 2017
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D. McBride (Robert Bird Group)
This article presents a list of general, high-level considerations that relate to construction methodology and optimisation of temporary/permanent works, with a number of examples provided. The considerations listed are intended to aid permanent works design engineers in their understanding of the type of questions that need to be asked during the early stages of design.
Last month’s article in the series covered the theory and detailed methods recommended for calculating backpropping loads. This article continues by discussing some of the design issues and preconceptions related to backpropping, and gives worked examples.
Current highway bridge designs in the UK tend to favour either composite steel girders with a precast or in situ concrete deck for long spans, or precast concrete beams with an in situ concrete deck for spans of less than 40m. This article considers temporary works, in particular the use of temporary supports, to precast concrete bridge beams during deck construction.
This article provides a brief introduction to demolition practice in the UK, addressing the more technical aspects requiring engineering input.