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Item type:Publication, Access status: without files , Bow-shaped segments in precast segmental bridgesSegmental bridges made of small precast elements have become a standard construction method for many highway and railway bridges in the world. Nevertheless some important aspects need further investigation. One is the unavoidable gap between two adjacent elements caused by the heat of hydration during segment production ('bowing effect'). This imperfection may significantly influence the bearing capacity of the structure and its serviceability. A thermo-mechanical finite element model has been developed and verified by full-scale test data to study the match-casting process. Thereafter, two real segmental bridges with perfect and imperfect segments have been modelled. The various analyses showed that compressive stresses and the load bearing capacity of the structure as well as its serviceability may be highly influenced by the bowing effect.Publicationtype: Journal Article84 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , Segmental hollow box girder bridges with bow shaped precast segmentsPublicationtype: Conference Paper26 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: with files , Temperature induced deformations in match-cast segments and their effects on precast segmental bridges(2006); This research aims to establish a better knowledge of the bowing of match-cast segments. A transient thermo-mechanical finite element model was developed to simulate the segment production. Numerical simulations of two real segmental bridges were conducted to show the impact of using bow shaped segments on the serviceability and the load bearing capacity of structures. A simple method to estimate the size of the bowing was developed.Publicationtype: Doctoral Thesis714 1823 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , Temperaturinduzierte, bleibende Verformungen von Brückensegmenten bei der Herstellung im KontaktverfahrenExperimental and numerical investigations regarding the irreversible temperature induced bowing deformations in match-cast segments will be presented. Recommendations to reduce this unavoidable effect are given.Publicationtype: Journal Article85 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , 44