The quantity of reinforcement installed in concrete piles appears to have increased significantly over the years. Recent case histories have suggested that overly conservative designs may be generated when current design standards are applied. This report considers the historical development of the design of reinforcement in piles and reviews the reasons behind the increase in pile reinforcement quantities. The report also researches the concepts underlying current design requirements and their applicability to pile design. Advice is given on the implementation of existing British Standards and recommendations given for amendments to the Standard for piled foundations BD 32/88 (DMRB 2.1). (Design Manual for Roads and Bridges, Volume 2, Section 1). (A)
Abstract