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Doctoral Thesis
Author of thesis: Ing. Adam Svoboda, Ph.D.
Acad. year: 2023/2024
Supervisor: doc. Ing. Ladislav Klusáček, CSc.
Reviewers: doc. Ing. Vladislav Hrdoušek, CSc., Ing. Tomáš Kulhavý, Ph.D.
This dissertation deals with the strengthening of reinforced concrete bridges built between 1900-1940, which still represent an important part of the road infrastructure of the Czech Republic. The strengthening of the existing bridges represents an efficient alternative to a complete replacement of the bridge structure, both from the technical and especially from the economic point of view, which plays a significant role in the decisionmaking process in bridge management. By choosing an appropriate strengthening method, the existing reinforced structure can be used efficiently while meeting all the requirements. The main objective of this dissertation is to introduce engineering optimization approaches to the design of strengthening system for reinforced concrete bridges using the method of post-tensioning with prestressing cables led in substitute cable ducts (substitute cable duct method) drilled in the original structures of the strengthened bridges. The sub-objective of this dissertation lies in verification of the structural formation of deviators in the original concrete of the bridge structures with varying radii of curvature and their effect on the reliability of prestressing cables.
strengthening, reinforced concrete bridges, post-tensioning, engineering optimization
Date of defence
28.06.2024
Result of the defence
Defended (thesis was successfully defended)
Language of thesis
Czech
Faculty
Fakulta stavební
Department
Institute of Concrete and Masonry Structures
Study programme
Civil Engineering (D-K-C-SI (N))
Field of study
Constructions and Traffic Structures (KDS)
Composition of Committee
prof. Ing. Marcela Karmazínová, CSc. (předseda) prof. Ing. Leonard Hobst, CSc. (člen) doc. Ing. Otto Plášek, Ph.D. (člen) prof. Ing. Zbyněk Keršner, CSc. (člen) prof. RNDr. Ing. Petr Štěpánek, CSc., dr. h. c. (člen) doc. Ing. Vladislav Hrdoušek, CSc. (člen) Ing. Tomáš Kulhavý, Ph.D. (člen) prof. Ing. Stanislav Vejvoda, CSc. (člen)
Supervisor’s reportdoc. Ing. Ladislav Klusáček, CSc.
Reviewer’s reportdoc. Ing. Vladislav Hrdoušek, CSc.
Reviewer’s reportIng. Tomáš Kulhavý, Ph.D.
Responsibility: Mgr. et Mgr. Hana Odstrčilová