The primary objective of the research on which this report is based was to provide practical guidance on procedures for design of concrete structures at the serviceability limit state.In considering serviceability, it became clear that the primary area of concern is deflection; the report therefore concentrates on this aspect of design. Estimating deflections is not an exact science as there are many unknowns at the design stage and considerable variability in the material and environmental properties. In order to address these issues parameter studies were carried out. These showed that the concrete tensile strength, extent of cracking and elastic modulus are the most significant parameters. The Report is divided into three Parts - Design, Worked examples and spreadsheets, and Background.
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