Abstract
Segmental bridge construction is very common in Pakistan. However, the impact ofstructural system changes before and after the completion of segmental bridge construction is achallenge and major concern for construction stakeholders. Therefore, in this study, construction stageanalysis was performed for balanced cantilever construction technique to check the safety andserviceability of the bridge. Through time dependent analysis, considering the construction sequenceand creep deformation of concrete, structural responses related to the member forces were reviewed.Moment reversal was observed in the cantilever segments near the face of the pier. Therefore,maximum compressive and tensile stresses were observed in the top and bottom fibers of the girder,respectively. These stresses were within the AASHTO LRFD limits for construction stage loads.Results demonstrated that the creep moment redistribution started when the structural system changedfrom statically determinate to indeterminate stage. Furthermore, it was concluded that the timedependent deformation of concrete was the governing factor in order to achieve the final designmoments.
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