Twin-Truss Self-Launching Gantries for Precast Segmental Bridges
In 31 pages, Span-by-Span Erection of Precast Segmental Bridges: Twin-Girder Overhead Self-Launching Gantries explores loading, kinematics, performance and productivity of this family of bridge construction machines. It discusses span cycle time, labor demand, and simultaneous erection of adjacent bridges with side-shifting gantries. It also explains the stability of tall bridge piers, the stiffness interactions to consider for the design of piers and superstructures, and staged application of post-tensioning to control joint opening and brittle span failure.
The eManual may be purchased as a self-standing publication or through the collection Span-by-Span Construction of Precast Segmental Bridges (134 pages), which is offered with 10% discount.
If then one adds Balanced Cantilever Construction of Precast Segmental Bridges (81 pages) and Construction Cost of Precast Segmental Bridges (134 pages plus and estimation spreadsheet), the collection provides 349 pages of unique guidance for the design, cost analysis, bidding and construction of precast segmental bridges.
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