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Title: Development Length of Deformed Reinforcing Bars— A Worldwide Review

Author(s): Christoph Mahrenholtz and Akanshu Sharma

Publication: Materials Journal

Volume: 117

Issue: 5

Appears on pages(s): 125-134

Keywords: bond; design; development; reinforcement; reinforcing bar

DOI: 10.14359/51725782

Date: 9/1/2020

Abstract:
The world becomes ever smaller and thus the global construction industry moves closer together. For this reason, civil engineers are looking for possibilities to harmonize design—for example, in the field of reinforced concrete structures. The streamlining would ease working in an international context and could offer opportunities for optimization: harmonization allows the identification of the technically best and most economical solution. This also holds for the provisions to calculate the development length of deformed reinforcing bars which, to date, differ notably from code to code. It is not reasonable that local codes define different development lengths for identical situations in terms of geometry and material used. This paper analyzes the provisions for the calculation of the development lengths according to internationally selected national codes as a basis for this discussion.