Design of Mobile Application for Traction Vehicle Control Support

VIEST, M. Návrh mobilní aplikace pro podporu řízení hnacího vozidla: Bakalářská práce. Ostrava: VŠB – Technická univerzita Ostrava, Fakulta strojní, Institut dopravy, 2020, 53 s. Vedoucí práce: Široký, J. Bakalářská práce se zabývá vývojem aplikace pro podporu řízení hnacího vozidla. V první části je uvedena teorie a skutečnosti ohledně aktuálního stavu. Je vysvětlena náročnost práce strojvedoucího včetně skutečností o jeho povinnostech. V následujících částech je pak provedena úvaha o technickém zpravováním aplikace a výběr vhodného softwaru pro vývoj aplikace. Následuje popis vývoje a příprava aplikace, včetně vysvětlení prvků aplikace. Následuje popis vypracovaní aplikace, která je přiložena k této práci. Jedná se o kompletní vypracování aplikace založenou pro zjednodušení činnosti strojvedoucího.VIEST, M. Design of mobile application for traction vehicle control support. Ostrava: VŠB – Technical University of Ostrava, Faculty of Mechanical Engineering, Institute of Transport, 2020, 53 p. Thesis head: Široký, J. The bachelor's thesis deals with the development of an application to support the driving of a traction vehicle. The first part presents the theory and facts about the current state. The complexity of the train driver's work is explained, including the facts about his duties. In the following sections, consideration is given to the technical administration of the application and the selection of suitable software for application development. The following is a description of the development and preparation of the application, including an explanation of the elements of the application. The following is a description of the development of the application, which is attached to this work. It is a complete elaboration of an application based on the simplification of the train driver's activity.342 - Institut dopravyvelmi dobř

Educational and Simulation Application of Railway Controll System Operating

Diplomová práce se zabývá vytvořením výukových materiálů pro strojvedoucí. Dělí se na dvě části, první z nich je simulační program pro práci s mobilní částí zabezpečovacího zařízení. Druhá část je textovou formou vytvořen manuál pro zabezpečovací zařízení. Jedná se o zabezpečovací zařízení ETCS. Toto zabezpečovací zařízení je celoevropským řešením zabezpečení na železnici. Vlakové zabezpečovací zařízení ETCS dle aktuálních vyjádření má být spuštěno v České republice na hlavních tratích v roce 2025. Do této doby musí být připravena infrastruktura, drážní vozidla musí být osazena tímto systémem a strojvedoucí musí umět tento systém používat a využívat. Právě z důvodů posledního jmenovaného, tedy výuku tohoto softwaru pro strojvedoucí, vznikla tato diplomová práce.The diploma thesis deals with the creation of teaching materials for drivers. It is divided into two parts, the first of which is a simulation program for working with the mobile part of the security device. The second part is a text-based manual for security devices. It is an ETCS signalling device. This signalling device is a pan-European railway security solution. According to current statements, the ETCS train protection equipment is to be launched in the Czech Republic on the main lines in 2025. By this time, the infrastructure must be prepared, rolling stock must be equipped with this system and the driver must be able to use and exploit this system. This diploma thesis was created precisely for the reasons of the latter, is the teaching of this software for train drivers.342 - Institut dopravyvelmi dobř

Effective flexural stiffness of slender reinforced concrete columns under axial forces and biaxial bending

Most of the design codes (ACI-318-2008 and Euro Code-2-2004) propose the moment magnifier method in order to take into account the second order effect to design slender reinforced concrete columns. The accuracy of this method depends on the effective flexural stiffness of the column. This paper proposes a new equation to obtain the effective stiffness EI of slender reinforced concrete columns. The expression is valid for any shape of cross-section, subjected to combined axial loads and biaxial bending, both for short-time and sustained loads, normal and high strength concretes, but it is only suitable for columns with equal effective buckling lengths in the two principal bending planes. The new equation extends the proposed EI equation in the "Biaxial bending moment magnifier method" by Bonet et al. (2004) [6], which is valid only for rectangular sections. The method was compared with 613 experimental tests from the literature and a good degree of accuracy was obtained. It was also compared with the design codes ACI-318 (08) and EC-2 (2004) improving the precision. The method is capable to verify and design with sufficient accuracy slender reinforced concrete columns in practical engineering design applications. © 2010 Elsevier Ltd.The authors wish to express their sincere gratitude to the Spanish "Ministerio de Ciencia e Innovacion" for help provided through projects BIA2008-03734 and BIA2009-10207 and to the European Community with the Feder funds.Bonet Senach, JL.; Romero, ML.; Miguel Sosa, P. (2011). Effective flexural stiffness of slender reinforced concrete columns under axial forces and biaxial bending. Engineering Structures. 33:881-893. doi:10.1016/j.engstruct.2010.12.009S8818933

Experimental and computational study of the vertial shear behaviour of partially encased perforated steel beams

A comprehensive study has been undertaken by the authors to conduct advanced analysis and enable design tools for innovative Ultra Shallow Floor Beams (USFB) in buildings. In the USFB, the concrete slab lies within the steel flanges and is connected to the slab through the web opening, providing enhanced longitudinal and vertical shear resistance. There are additional benefits in providing increased fire and buckling resistance to the steel beam. In this study four specimens of symmetric steel-concrete composite beams with large circular web openings in the steel section and low concrete grade were tested under static monotonic loading. One of the specimens was from a lower quality of concrete and was tested in order to further investigate the failure mechanism and the actual behaviour of the concrete confinement. The load carrying capacity of the perforated bare steel beam is also presented for direct comparison. For the computational approach to the problem, a three-dimensional (3D) Finite Element (FE) model was created, employing solid elements with material, geometrical and interfacial non-linearity. Two-dimensional (2D) FE contact models using shell elements were established to examine the steel-concrete interface condition. The results show that the FE models are able to satisfactorily predict the load carrying capacities and the crack patterns of these new composite beams against the Vierendeel failure mechanism. A sensitivity study of material models and contact strengths using various constitutive models from the literature and the dominant parameters which affect the structural behaviour of the USFBs, are presented and discussed. Furthermore, the FE models provide detailed information on the structural behaviour of the confined concrete between the flanges and the section of concrete that passes through the web openings, as this is of paramount importance for the load carrying capacity and the failure mode of the USFBs. The comparison between the experimental and computational results leads to useful conclusions. The results for the composite beams show a significant increase in vertical shear resistance, even though mechanical shear connectors were not used. A previous design method is presented and modified to be able to be used for the load carrying capacity prediction of this new composite structural system. The results compare very well and the shear enhancement demonstrated in this study is now used in design practice

Bibliography on prestressed concrete / Engineering Experiment Station structural research series ; no. S-10

"Prepared as a part of the First Progress Report of the Investigation of Prestressed Concrete for Highway Bridges, conducted by the Engineering Experiment Station, University of Illinois, in cooperation with the Division of Highways, State of Illinois and the Bureau of Public Roads, U.S. Department of Commerce.

Full-scale tests of channel shear connectors and composite T-beams

Studies of slab and highway bridges I

Tests of continuous right I-beam bridges : studies of slab and beam highway bridges, part V

Cover title.Prepared as part of an investigation conducted by the Engineering Experiment Station, University of Illinois at Urbana-Champaign

Studies of slab and beam highway bridges : part III : small-scale tests of shear connectors and composite t-beams

Cover title.Prepared as part of an investigation conducted by the Engineering Experiment Station, University of Illinois at Urbana-Champaign

1st progress report of the investigation of prestressed reinforced concrete for highway bridges

Includes bibliographical references (p.C1-C111).Preface / C.P. Siess -- Section A. Progress report on analytical studies of the ultimate flexural capacity of prestressed concrete beams / by D.F. Billet and J.H. Appleton -- Section B. Progress report on tests of prestressed concrete beams / J.H. Appleton, D.F. Billet, E.M. Zwoyer -- Section C. Bibliography on prestressed concrete / by E.M. Zwoyer and I.M. Viest

Composite Construction Design for Building

xxv, 7.1