Span-by-Span Construction of Precast Segmental Bridges

Span-by-Span Construction of Precast Segmental Bridges

134 pages, collection

Regular price $ 126.00 Sale

In 134 pages, this collection of five eManuals provides exhaustive coverage of span-by-span construction of precast segmental bridges. Extensively illustrated, the collection introduces span-by-span, balanced cantilever and progressive construction of precast segmental bridges and explains how the erection method influences bridge design and precasting operations.

Precast segmental bridges are all about standardization, and the collection explores bridge design for modularity and the factors that drive the choice between precast segmental technology and other construction methods. The collection provides exhaustive coverage of the short-line method, the operations of casting cells, and the geometric design of the deck for standardized production of atypical segments and geometry correction with the typical segments.

Thorough guidance is provided on the generation of the casting curve in relation to segment fabrication sequence, erection sequence and time-dependent effects, the geometry control of short-line match casting (inclusive of commercial software programs and how they work) and the progressive correction of casting errors. The collection also explores the long-line method for the dual-track U-segments of light-rail transit bridges, the post-casting operations for all types of segments, different organizations of the stockyard, and segment delivery and epoxy gluing at the erection site.

The five eManuals explore the temporary static schemes of span-by-span construction, the corresponding post-tensioning systems and locked-in stresses, the stiffness interactions to consider for bridge design, and staged application of post-tensioning to avoid opening of the epoxy joints and the risk of brittle span failure. The collection also discusses span assembly on shoring towers and the different means and methods to strand-jack into position precast segmental spans delivered on barges. It introduces the different types of self-launching gantries for span-by-span erection and explores the span assembly operations common to all types of gantries.

For every family of self-launching gantries, the collection explores loads, self-launch kinematics, support and launch systems, performance, productivity, stiffness interactions, stability of tall bridge piers, staged construction of simply-supported and continuous spans, and staged application of post-tensioning. The collection includes five eManuals:

  • Short-Line Match Casting of Precast Segmental Bridges (42 pages)
  • Span-by-Span Erection of Precast Segmental Bridges: Introduction (19 pages)
  • Span-by-Span Erection of Precast Segmental Bridges: Twin-Girder Overhead Self-Launching Gantries (31 pages)
  • Span-by-Span Erection of Precast Segmental Bridges: Single-Girder Overhead Self-Launching Gantries (21 pages)
  • Span-by-Span Erection of Precast Segmental Bridges: Underslung Self-Launching Gantries (21 pages)

The collection is offered with 10% discount on the cover price of the individual eManuals and is indeed an essential tool for bridge owners, designers and construction professionals interested in the planning, design, bidding and construction of precast segmental bridges for highway and light-rail transit projects.

Combined with Balanced Cantilever Construction of Precast Segmental Bridges (81 pages), the monographs provide 215 pages of exhaustive coverage of all the construction methods and all the types of special construction equipment for precast segmental bridges. If you are interested in the design, construction and inspection of precast segmental bridges, the combination will provide you with a unique wealth of knowledge, learning and insights.

Last but not least, the eManual Construction Cost of Precast Segmental Bridges (134 pages) and the companion estimation spreadsheet explore the construction cost of precast segmental decks. The segment fabrication costs include the setup costs of precasting facilities and the production costs of the short- and long-line method. Segment transportation includes trucking, trains and barges, with or without intermediate staging areas. Segment erection includes span-by-span and balanced cantilever construction and the setup and production costs of the different types of special equipment. The estimation spreadsheet includes 1004 cost items (yes, you have read well: one thousand and four) and three columns for each cost item: construction costs, opportunities (potential of cost savings), and risks (potential of extra costs).

When combined, the monographs of the Bridge Engineering eManuals Project provide 349 pages of exhaustive coverage of all the construction methods and all the types of special construction equipment for precast segmental bridges. If you thought that ASBI Construction Practices Handbook for Concrete Segmental and Cable-Supported Bridges was the international reference for the design and construction of precast segmental bridges, you will be greatly surprised.


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