Hegger, JosefJosefHeggerFischer, OliverOliverFischerMaurer, ReinhardReinhardMaurerDommes, ChristianChristianDommesAdam, VivianeVivianeAdamLamatsch, SebastianSebastianLamatschThoma, SebastianSebastianThomaLavrentyev, VladimirVladimirLavrentyevStakalies, EvaEvaStakaliesTeworte, FrederikFrederikTeworte2025-09-232025-09-232024Bauingenieur 99 (1-2): (2024)https://hdl.handle.net/11420/57523The article presents the verification procedures in stage 2 for the recalculation of existing bridges according to the current BEM-ING Part 2 and their further development. Based on the design models of BEM-ING Part 2 for shear and torsion, further experimental investigations of the three research institutions RWTH Aachen University, TU Munich and TU Dortmund on large-scale prestressed concrete girders are explained in order to derive proposals for extended verifications that represent the load-bearing behaviour of prestressed concrete girders even more accurately. Following a comparison of the refined design approaches with new test results on shear capacity, two real bridge cross-sections with varying boundary conditions are also recalculated. In both cases, the activation of previously unconsidered load reserves results in an increase in the calculated shear capacity in stage 2.en1436-486720241-2VDI Fachmedien GmBH & Co. KGBoundary element methodConcrete beams and girdersPrestressed concreteTechnology::690: Building, ConstructionTechnology::620: Engineering::620.1: Engineering Mechanics and Materials ScienceTechnology::600: TechnologyTechnology::620: Engineering::620.1: Engineering Mechanics and Materials Science::620.11: Engineering MaterialsJournal Article10.37544/0005-6650-2024-01-02-23Journal Article