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Design of prestressed bridge structure
Tylčer, Jan ; Rybák, Vít (referee) ; Klusáček, Ladislav (advisor)
This thesis describes the design of a road bridge in Trutnov through local communication. It is designed prestressed dvoutrámová construction of two fields with twin inclined struts. It developed a detailed static analysis and the bridge is considered to I. and II. limit state according to European standards - Eurocode. It is prepared detailed drawings.
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Design of prestressed bridge structure
Anděl, Martin ; Krejčík, Vladimír (referee) ; Klusáček, Ladislav (advisor)
The aim of this thesis was to suggest two alternatives of a prestressed concrete bridge structure over the river Jihlava in Ivančice and to design the chosen one. The structure was designed as a one-span frame bridge with the span range of 46,0 m. Both design and relevant drawing documentation of the slab, abutment and strip foundation was made.
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Temporary strengthening of road bridges
Suza, Dominik ; Kaplan,, Věroslav (referee) ; Pukl,, Radomír (referee) ; Klusáček, Ladislav (advisor)
Bridge strengthening is frequently associated with costly, long-term reconstruction. In some cases the bridge load capacity is sufficient for standard traffic, but requirements for an extremely heavy vehicle can exceed the maximal bridge load capacity. These vehicles normally weigh hundreds of tons. Moreover, well-known bridge strengthening technologies are not efficient and economical for this special load case. This doctoral thesis presents a short-term bridge strengthening method using a temporary support structure for the assistance of the existing bridge carrying structure. Although this strengthening method is rather old, it is rarely known. Approaches from 1980, are still often used, rely on simplified principles and approximation models. This approximation causes restricted efficiency of the strengthening system and creates a mathematical model that is not necessarily safe. The introduced new short-term bridge strengthening theory is based on monitoring of real bridge structures and temporary support structures during the crossing of extremely heavy vehicles. A mathematical model, which represents behaviour of real structures suitable, is introduced. The major effects, which have the greatest influence on this strengthening method are discussed. Further more a safety hydraulic element invented at Brno University of Technology, which can be used with the strengthening system is shown. The application of this system ensures required boundary conditions and therefore it guarantees the proper usage of the strengthening system.
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Reconstruction of the cement component storage structure
Bažantová, Lenka ; Pinkas, Karel (referee) ; Klusáček, Ladislav (advisor)
The thesis is focused on the design of the reconstruction of the reinforced concrete pre-stressed construction of the clinker reservoir. The supporting system of the structure consists of a reinforced concrete wall on which a prestressing reinforcement is applied in the sprayed concrete layer. Preliminary research revealed disturbances that could disrupt static objects. The aim of this work is to propose a solution for the reinforcement of the supporting structure. The thesis contains two variants of the reconstruction solution. A static report is prepared for the selected option, including the impact of the construction, the construction procedure and the drawing documentation.
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Strenghtening of the load bearing parts of the production hall
Čížová, Kateřina ; Pinkas, Karel (referee) ; Klusáček, Ladislav (advisor)
The diploma thesis deals with the strenghtening of the supporting parts of the production hall in Drásov. In the first part the existing load bearing capacity of the structure is solved. The next step is to design of strenghtening variants for nonconforming columns and short corbel. Columns and short corbel are strenghtening with monostrand. At the end of the thesis, verification of the load bearing capacity of the strenghtening structure is performed.
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Bridge over the river after its widening
Strouhalová, Petra ; Rušar, Jaromír (referee) ; Klusáček, Ladislav (advisor)
This final thesis deals with new design of post-tensioned concrete bridge across river Vsetínská Bečva in the area Ústí u Vsetína. The existing bridge with three spans found in therms of inundation, that´s why is replaced by new four spans bridge construction. The bridge is situated on highway I/57 and used to transfer across the river. The superstructure is designed in three alternatives. Detailed assessment is only for one chosen variant a post-tensioned two-beam concrete.
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Design of the slab bridge
Strouhalová, Petra ; Krejčík, Vladimír (referee) ; Klusáček, Ladislav (advisor)
This thesis deals with design and solution of road slab bridge structure. Draft prestressing force is processed using the load balancing, the thickness of the slab is consedered in five variants. The aim of this thesis is to determine which option is appropriate for prestressing and which not and subsequently one selected variant design.
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The reconstruction of the prestressed railway bridge
Macková, Lucie ; Šedivý, Jan (referee) ; Klusáček, Ladislav (advisor)
Diploma thesis describes the design of main structure reinforcement of the railway bridge ,,Gagarin’’ in the 5,872 km of route Český Těšín – Ostrava Kunčice. Reinforcement is achieved by combination of composite slab-shaped channel with the continuous gravel ballast and free additional prestressing cables. There are 3 variants for which the design and assessment of main structure is performed. Evaluation of the options is performed on basis of calculations. There are made additional calculations and drawings for best variant.
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Bridge over the Jihlava river
Hibš, Daniel ; Klusáček, Ladislav (referee) ; Panáček, Josef (advisor)
This bachelor thesis deals with the design of a new bridge construction over the Jihlava river in Luka nad Jihlavou. The bridge is located on the road III/4044 at stationing 0,033 km. The bridge evidence number is 4044-1. Three studies were worked out in this thesis. First variant of load-bearing structure projects prestressed beams with composite slab, the next variant suggests dual girder construction and the third variant is prestressed concrete slab. The first study was selected – the bridge made of post-tensioned prefabricated beams with composited reinforced concrete slab. The calculation was carried out in the SCIA Engineer program, and selected outputs were checked by manual calculation. In addition, the time dependent analysis with construction phases was performed.
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Design of the simple beam bridge
Zábranský, Ivo ; Panáček, Josef (referee) ; Klusáček, Ladislav (advisor)
The aim of this work is to design a bridge for one field as a counter-proposal against the existing low-bridge. The bridge is designed as a prestressed concrete T cross-section overflowing waterway with a length of 24 meters. The internal forces on the structure were calculated using the software Rfem 5.01 with subsequent manual static calculation of the design according to ČSN EN 1992-1-1 for the serviceability limit state and ultimate limit state.
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