Short-Line Match-Casting of Precast Segmental Bridges

Short-Line Match-Casting of Precast Segmental Bridges

42 pages

Regular price $ 35.00 Sale

With the diffusion of 75- and 100-year service-life design requirements, match casting and epoxy gluing have acquired a critical role in assuring quality and durability of precast segmental bridges and avoiding premature joint failure.

In 42 pages, the eManual 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 eManual explores bridge design for modularity and the factors that drive the choice between precast segmental technology and other construction methods.

The eManual provides exhaustive coverage of the short-line method, the operations of casting cells for constant- and varying-depth segments, and the geometric design of the deck for standardized production of atypical segments and geometry correction with the typical segments.

With extensive illustrations, the eManual explains how to generate the casting curve for the segments in relation to casting 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 geometry errors.

The eManual also explores the long-line method for varying-depth balanced cantilevers and 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.

  • Introduction
  • Fabrication and delivery of precast segments
  • Short-line match casting
  • Geometry control of short-line match casting
  • Long-line match casting
  • Post casting
  • Delivery
  • Segment connection at the erection site
  • References

The eManual is an indispensable gateway to the monographs of the eManuals Project on span-by-span and balanced cantilever construction of precast segmental bridges and the corresponding families of self-launching gantries and lifting frames. Even bridge owners, designers and construction professionals with extensive experience of precast segmental technology will find fresh information and extensive feedback from the industry.

The collection Span-by-Span Construction of Precast Segmental Bridges (134 pages) includes the eManual and provides exhaustive coverage of the entire span-by-span construction process, ranging from segment fabrication to the different types of self-launching gantries used for span erection. The collection is offered with 10% discount on the cover price of the five eManuals.

The eManual Balanced Cantilever Construction of Precast Segmental Bridges (81 pages) explores the load and stiffness interactions to consider for the design of piers and superstructures, the stability of tall bridge piers under the loads applied by self-launching gantries, the midspan closure operations of adjoining cantilevers, different decking systems for cable-stayed precast segmental bridges, and the different types of expansion joints. It also explains loads, kinematics, performance, productivity and structure-equipment interactions of the self-launching gantries for balanced cantilever construction and the different families of lifting frames.


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