Design for movement in buildings
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Description
This technical note provides information on the types of movement that affect the performance of buildings and building elements. It gives methods and data to enable amounts of movement to be estimated, and design details are presented to accommodate these movements. Sources of movement to consider include temperature and radiation effects, early age thermal movements of concrete, shrinkage and expansion resulting from moisture movement, elastic and creep deflections under load and foundation movements. Restraints to movements are often present, generating significant forces; this study describes how these forces can be reduced either by designing elements to minimise the restraints to movement or by providing suitable movement joints.
