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Hatem M. Seliem
By
April 02, 2020

Webinar: Best Practices when Considering Post-Tensioned Girder Bridges

Continuous post-tensioned bridges are very efficient structures. By eliminating the need for deck joints, this requires less maintenance, which is a significant saving in the long-term. Precast prestressed concrete (PPC) girder bridges are made continuous by using cast-in-place closure joints combined with continuous draped post-tensioning tendons. The webinar will present the proper modeling of continuous post-tensioned girder bridges utilizing staged construction for the time dependency. And checking the load rating by using the resulting internal forces received from the detailed finite element analysis.

Best Practices When Considering Post-Tensioned Girder Bridges (2)

Presentation File

Agenda

 

01    Bridge Description

                              • Continuous, post-tensioned precast girder bridge

02    Finite Element Modeling

                              • Staged-construction
                              • Tendon profiling

03    Refined Analysis

                              • Primary and Secondary moments
                              • Losses

04    Load Rating

                              • Permanent Load
                              • Vehicular Load

 


 

 

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