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Motorway Viaduct
Polách, Marek ; Šopík,, Leonard (referee) ; Stráský, Jiří (advisor)
The thesis is a design of a bridge crossing the valley of the Hrabyňka creek as a part of road I/II. Firstly, three possible structures are designed and according to their advantages and disadvantages, the best of them is selected. In this case a cable stay bridge was selected. Following is a design of span lenghths, collumn heights and the cross-section. Then the loads are detremined and applied on a numeric model cretaed in software working on the basis of FEM. In continuation internal forces are calculated and their propriate combinations for service limit stay and ultimate limit state with time dependent analysis taken into account. In the end the reinforcement steel is designed for one part of the structure. Detailed drawings are also part of the thesis.
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Numerical analysis of visco-elastic material models
Michálková, Veronika ; Lang, Rostislav (referee) ; Trcala, Miroslav (advisor)
The serviceability of concrete structures is a multiphysical problem where viscoelasticity is interrelated with plasticity or damage, among other things. This work focuses on the analysis and testing of an isotropic viscoelastic material model based on a generalized Kelvin chain. The Kelvin chain is described in detail for 1D strain and then its application to multi-axial 2D plane strain is shown. In this paper, a total of 3 studies are carried out using the Kelvin chain. The first study concerns the analysis of the Kelvin chain with damage on several benchmark refinement problems. The second study compares the results of the Kelvin chain including damage with an experiment on a three-point beam bending problem. The third study concerns the analysis of the Kelvin chain with damage on a stress relaxation problem in a loaded concrete beam and compares the results with the ANSYS calculation and experimental measurements. The aim is to analyze the effect of the parameter on the time-dependent behavior of the concrete and also the effect of the number of time increments N on the result.
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Highway box girder bridge
Ondrůšková, Kamila ; Nováček, Jan (referee) ; Zich, Miloš (advisor)
The subject of the diploma thesis is the bridging design of the valley and Doľanský potok on the D1 motorway in the section Jánovce - Jablonov in Slovakia. Three variants of bridging have been designed and then compared. A post-tensioned construction of the box girder cross section was chosen as the most suitable variant, which was further checked. The static calculation was drawn up according to European standards.
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BRIDGE ON D1 (LIETAVSKÁ LÚČKA - VIŠŇOVÉ) OVER VALLEY AT km 4.313
Hudyma, Nazar ; Dvořák, Tomáš (referee) ; Zich, Miloš (advisor)
The subject of this Master's thesis is the design of a road bridge on the D1 in the section Lietavská Lúčka - Višňové in the Žilina Region, Žilina District, Slovak Republic. The bridge is used to cross the valley in KM 4,313 and the road in KM 4,410. Three variants of bridging were proposed, but further in the work an assessment is made on one of the variants. The total length of the superstructure is 354.00 m, the theoretical total span of the structure is 352.00 m. The bridge has 4 spans and is constructed by free cantilever method .The locations of the supports were limited by unsuitable geological conditions at the construction site (active shear area in Quaternary sediments), especially in span No. 3 (span lenght 104.00 m) and span No. 4 (span lenght 75.00 m). The monolithic part of the bridge structure will be concreted by free cantilever method with the largest length of the cantilever 52.00 m. The outermost parts of fields No. 1 and No. 4 will be cast-in-place using fixed scaffolding.
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Static analysis of residential building
Hanzlík, Petr ; Šopík, Leonard (referee) ; Zich, Miloš (advisor)
The discussion of the master’s thesis is static analysis of residental building. The thesis details the original solution from assesment and a new design variant solution. The work is focused on static solution of monolithic concrete plate with ribs and is devoted to limit states assessment of the plate with ribs. The thesis includes a time analysis structure and prestressed ribs in the new 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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Bridge over a local road and a brook
Švancara, Marek ; Puda, Vladimír (referee) ; Nečas, Radim (advisor)
The topic o thlis thesis is design of the structure of a bridge. The beam structure is chosen from three variants of the solution, the structure is formed by a bracket above the pillars and prepared prestressed beams. Various construction procedures have been verified and assessed for the serviceability and load-bearing limit states according to the applicable standards and regulations. Drawing documentation and static calculation are processed.
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Viaduct Mordava rokle
Ondřej, Václav ; Romportl, Tomáš (referee) ; Nečas, Radim (advisor)
The aim of this thesis is design of the loadbearing structure of a bridge. Out of two proposed variants was chosen prestressed girder deck of 5 spans. The bridge is built span-by-span in a formwork supported by launching girders. Calculation of load cases is made in software Midas Civil 2021 and Scia Engineer 18.1. The construction is evaluated considering the ultimate limit state and serviceability limit state. The design and evaluation were made according to valid standards.
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D3 motorway bridge at km 33,588 in Slovakia
Lipovský, Václav ; Řeřucha, Kamil (referee) ; Koláček, Jan (advisor)
The diploma thesis deals with the design of a motorway bridge carrying the D3 motorway over a deep valley between Svrčinovec and Skalité. Three variants were developed for this work, from which the variant of a prestressed box girder bridge with sloping walls was selected for a detailed solution. The main superstructure was designed as a continuous structure with five spans of post-tensioned concrete. The superstructure is concreted in phases by means of an movable scaffolding system. The total length of the supporting structure is 255.50 m. The bridge is straight in plan. The analysis of the structure was carried out by means of several models that were created in Scia Engineer 21.1. The assessments of ultimate limit state and serviceability limit state were made according to valid standarts. The analysis of the structure was carried out in longitudinal and transverse directions. This thesis also includes a time dependent analysis (TDA) that takes the construciton phases into account. Finally, drawings and visualizations were produced.
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Highway bridge over wide wally
Mertová, Eliška ; Smejkal, Ing David (referee) ; Klusáček, Ladislav (advisor)
The aim of this diploma thesis was the design of three possible variants, how to span the wide and deep valley with a bridge. After an evaluation, situation of the highway on the only wide load-bearing structure which is constituted by a box girder with transverse cantilevers supported by prefabricated bar braces, was chosen as an optimal solving. The load- bearing structure made of post- tensioned concrete is going to be incrementally launched and be supported by one-column pillars along an axis of the motorway. The work is composed of a detailed design of this preferred variant, which is processed according to the ultimate and serviceability limit state including the construction stage analysis of the bridge by the construction technology by an incremental launching method.
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