20.500.12556/RUL-171058 A simple beam-like finite element model for the analysis of concrete beams prestressed with unbonded tendons This paper presents a new beam-like finite element model for the analysis of the mechanical response of a reinforced concrete beam prestressed with unbonded curved tendons under short-term static loading. To develop a numerically efficient and computationally inexpensive model while still capturing the most important characteristics of the beam’s deformation, only the material nonlinearity is fully considered, as suggested by current engineering standards, whereas the kinematics are consistently linearized in the model. To ensure successful completion of the analysis even for statically indeterminate structures, where the effect of concrete softening may start well before the point of the beam’s final collapse and could result in convergence issues, localisation of deformations and concrete softening under compression are treated according to a well-established crack-band principle. Reliability and efficiency of the developed model are proven on the examples of simply supported and continuous beams, for which well-documented experimental results are available in literature. The model provides the user with a quick and easy-to-understand finite element tool for practical use in design of prestressed structures. prestressed concrete curved tendon post-tensioning numerical model simply-supported beam continuous beam prednapeti beton ukrivljen kabel naknadno prednapenjanje numerični model prostoležeči nosilec kontinuirni nosilec true false true Angleški jezik Slovenski jezik Članek v reviji 2025-07-30 13:01:24 2025-07-30 13:01:29 2025-07-31 04:10:52 0000-00-00 00:00:00 2025 0 0 14 str. Vol. 316, art. 107894 Sep. 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 519.62 0045-7949 10.1016/j.compstruc.2025.107894 244310787 https://www.sciencedirect.com/science/article/pii/S0045794925002524 1 80bdfda6-6d34-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=213784 Kocman,_Cesarek,_Bratina-A_simple_beam-like_finite_element_model_for_the_analysis_of_concrete_beams_prestressed_with_unbonded_tendons.pdf Kocman,_Cesarek,_Bratina-A_simple_beam-like_finite_element_model_for_the_analysis_of_concrete_beams_prestressed_with_unbonded_tendons.pdf 1 567C94B69381D70A4ED702BB01424F07 8e502fe50fbc4e5c4fbb1ec4e34ca8a0b7a51e0af062de0edb7cd71d3dbaec4e a3c55e6c-6d34-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=213785 Fakulteta za gradbeništvo in geodezijo 0 0 0