The Challenge of the End Span

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Title: The Challenge of the End Span

Author(s): Bijan O. Aalami

Publication: Concrete International

Volume: 40

Issue: 10

Appears on pages(s): 35-37

Keywords: load, member, parabola, design

Date: 10/1/2018

Abstract:
To avoid creating a moment at the anchorage, tendons are typically anchored at the centroid of the member. This results in a uniform compression in the member, which is added to the stresses from the bending of the member to complete the design. Anchoring the tendon at the member centroid leads to a challenge in the selection of the tendon profile for the end span of multi-span slabs and beams. The article provides a preferred tendon profile and example calculations.