Unique detailing and analysis for continuous reverse curved structure with partial staging

摘要

Staged construction for curved steel girder bridges must consider additional stage related loading and eccentricity conditions. Our bridge dealt with complex geometry of being 7-span fully joint-less, reverse curved (with tight 245-foot radius), and employed a unique partial staging of two-spans to minimize construction costs and impacts to the traveling public. We will cover the staging conditions analyzed to allow proper steel fit-up of a curved structure during construction, as well as the FEM developed.