Author: C. Richardson (AECOM and CARE)
1 April 2015
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C. Richardson (AECOM and CARE)
Strut-and-tie modelling is a simple method of modelling complex stress patterns in reinforced concrete as triangulated models. It is based on the same truss analogy as the design for shear in Eurocode 2 and can be applied to many elements. It is particularly useful where normal beam theory does not apply, i.e. where plane sections do not remain plane, e.g. in deep beams, corbels and pile caps. EC2 provides information about the use of strut-and-tie modelling and this article is an introduction for engineers who want to take advantage of this useful analysis method.
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.
As structural engineering students, we learn about mild steel, modern design and construction methods. However, historic structures often do not fit into this mould. Whether you work in conservation or are a general practitioner, you are likely to come across cast iron, wrought iron, as well as early mild steel structures.