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Item type:Publication, Access status: with files , Querkrafttragfähigkeit von gevouteten Stahlbetonbalken ohne Querkraftbewehrung : Versuchsbericht Q01-2009(2009-12-21); This research report summarizes the experimental and numerical investigations which were conducted to clarify whether haunching of reinforced concrete beams without shear reinforcement significantly affects the ultimate shear capacity (V_ccd). The experimental results show that the approach of V_ccd in shear design is questionable.Publicationtype: Research Report53 551 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , 61 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , Querkrafttragfähigkeit von Fahrbahnplatten ohne QuerkraftbewehrungThe design of concrete bridge deck slabs is of major concern since the introduction of the Eurocodes as the calculated shear capacity of slabs without stirrups and staggered reinforcement according to the new design standards is often considerably smaller compared to the former regulations i.e. DIN 1045:88. This raises the question whether the existing structures are still save. A series of 12 tests on 4 different specimens representing a bridge deck was performed to examine the real load bearing behaviour of a slab with and without shear reinforcement under a wheel (point) load. The evaluation of the test results revealed, that the current design formula with an assumed elastic shear force distribution leads to rather conservative values of shear capacity for bridge deck slabs. Various approaches for shear design are discussed and the accuracy is checked by means of a shear database and the test results. A new model to calculate the shear capacity is proposed which shows a better agreement with test data than the known approaches. © 2009 Ernst.Publicationtype: Journal Article68 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , Finite Elemente Berechnungen im Stahlbetonbau – Ist alles berechenbar(2009-09-28)Publicationtype: Technical Report60 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , Querkrafttragfähigkeit von Fahrbahnplatten ohne Querkraftbewehrung(Wirtschaftsverlag N.W. Verlag für Neue Wissenschaft, 2009); ; Publicationtype: Book104 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , Die Prüfung der Standsicherheit am ganzheitlichen Gebäudemodell(2008-10)Publicationtype: Journal Article62 - Some of the metrics are blocked by yourconsent settings
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 Article82 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , 37 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , Construction and design of a 20 km long precast segmental box girder bridge with external prestressing(2008-05-13)Publicationtype: Learning Object35 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , 30