ABSTRACT
The majority of in situ concrete structures are cast in large pours which results in continuity between structural members (beams, columns, etc.). It follows that, in situ concrete structures are generally indeterminate. Precise methods of analysis of such three-dimensional structures can be time consuming. In practice, concrete structures are often assumed to be made up of smaller, more manageable, two-dimensional sub-structures. These sub-structures are derived in such a way that they are easier to analyse (by hand or by computer) even though they may still be indeterminate. At the same time, these sub-structures model the behaviour of the actual structure within acceptable margins of accuracy. This chapter presents some of the more popular approaches to the modelling and analysis of concrete structures.
