Finite Element Analysis of Externally Post-Tensioned Segmental Box Girder construction

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Title: Finite Element Analysis of Externally Post-Tensioned Segmental Box Girder construction

Author(s): Michael E. Kreger Gregory L. Fenves, and Kamal C. El-Habr

Publication: Special Publication

Volume: 120

Issue:

Appears on pages(s): 389-408

Keywords: box beams; bridges (structures); finite element method; post-tensioning; precast concrete; prestressing; prestressing steels; segmental construction; structural analysis; unbonded prestressing; Structural Research

Date: 6/1/1990

Abstract:
A nonlinear finite element analysis was conducted to examine the full range of behavior of segmentally precast box girder construction with external post-tensioning tendons. A primary objective of the study was to examine the effect of dry joints (without epoxy) on the strength and ductility of box girder construction. A secondary consideration was the influence of supplemental bonded internal tendons on the behavior of the structure.