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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Incremental-launched viaduct with double curvature, plan and elevation, in high speed line - Lugo-Monforte-Orense, San Julián Variant
Author(s): Carlos J. Bajo Pavía, Marta Pérez Escacho, Juan Sevillano Gacho
Appears on pages(s): 59 - 67
Keywords: High-speed, Launching, Double-curvature, Support descent
Abstract:The construction sequence by means of incremental-launching for curved plan alignment and a straight and convex parabolic elevation, has required the adaptation of the traditional method of launching towards a hybrid method that, preserving the inherent advantages of the primary construction system, has allowed to work with these unusual geometrical conditions. The establishment of the launching procedure in two phases: launching on a transitional trajectory affected by the vertical flexibility of the deck, and the further rectification of the deck elevation by a sequential controlled support descent, has provided viability for this method with a highly competitive result.
ACI International Partner, ACHE Spain, International Partner Access.
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