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Nevecerel H.,University of Zagreb | Janic M.,Sveuciliste u Beogradu | Papa I.,University of Zagreb | Pentek T.,University of Zagreb | And 2 more authors.
Nova Mehanizacija Sumarstva | Year: 2015

Designing of forest roads involves the performance of many specific tasks. Each of the tasks requires the expertise and the use of appropriate tools. There are many computer programs that are used for designing public roads and forest roads. This paper shows the comparerison of the existing solution, the computer program »Cesta« (Road) and the modern computer module »Trasa« (Route). Possibilities of each tool are shown and their functionality is tested on specific examples. The computer program »Cesta« is often used in Croatia and its possibilities are very well known among designers of forest roads. The paper presents the main views (situation, longitudinal profile, cross sections), and additional tools that are rarely used for designing forest roads. Deficiencies cannot be removed because the computer program »Cesta« ceased to develop, and it is, therefore, difficult to adjust to possible changes in legislation and technical requirements for forest roads. On the other hand, the computer module »Trasa« is a new tool for us that is still evolving in line with the needs of the user. The paper describes the structure and function menus required for the master/detailed design of forest roads. The working principle is explained and new solutions are presented that can make the computer module »Trasa« a potentially better solution if its design methodology is adjusted to new technologies. Designers of forest roads have always made efforts to upgrade the quality of designing forest road, trying to introduce uniformity and standardization, and it is up to them to choose an appropriate solution. © 2015, University of Zagreb, All rights reserved.


Cosic M.,University of Zagreb | Folic R.,Sveuciliste u Novom Sadu | Folic B.,Sveuciliste u Beogradu
Gradjevinar | Year: 2014

The impact of changes to artificial-accelerogram parameters on the seismic performance of structures is examined in this paper. The seismic response and seismic damage are analysed in this respect Nonlinear response of the system is determined by the incremental dynamic analysis (IDA), while the damage analysis of the system is considered using the damage index. The study has shown that generation of artificial accelerograms requires a considerable number of cycles, which improves the correspondence between the range of recorded response spectra and the range of the response spectra according to EN1998-1, which is measured based on deviation of spectral acceleration curves as a function of the ductility of the system.


Belosevic I.,Sveuciliste u Beogradu | Ivic M.,Sveuciliste u Beogradu | Kosijer M.,Sveuciliste u Beogradu
Gradjevinar | Year: 2012

The multigroup freight train formation is regarded as a challenging problem in railway transport. Multigroup trains are composed of a number of wagon groups that have to be arranged according to the order of intermediate stations. The analysis of technical and technological conditions that significantly influence the effects of simultaneous train formation methods is presented. The effects of various methods of significance for track capacity planning and train station service level analysis are considered. The research presented in the paper is expected to contribute to the process of planning measures to be taken prior to construction of train stations.


The paper explores the possibility of using spatial criteria for the evaluation of abandoned or underused industrial complexes (brownfields) during their urban renewal. The establishment of unique spatial criteria in the analysis and evaluation of brownfield sites is the precondition for their uniform and sustainable development. The validity of the proposed criteria is checked on the example of analysis of the former industrial complex Rudi Čajavec in Banja Luka.


Lapcevic R.,Sveuciliste u Beogradu | Vojnovic B.,Geosonda Konsolidacija AD | Lokin P.,Sveuciliste u Beogradu | Bogdanovic S.,Sveuciliste u Beogradu
Gradjevinar | Year: 2015

The excavation technology, and the type and scope of slope protection measures, were selected based on preliminary analyses and investigation results, in specific construction conditions, immediately below some major road facilities, in partly degraded thinly layered volcanogenic sedimentary rocks. The realization and protection of a deep and wide foundation pit was made according to the method presented in this paper, which effectively ensured stability of the existing structures and full safety of work in every phase of excavation, all this under a very tight schedule and at low cost of construction work.


Stevanovic K.N.,Sveuciliste u Beogradu | Stevanovic M.V.,Free University of Colombia
Gradjevinar | Year: 2014

Sustainable development of traffic and cities, integration of transport modes, and the renaissance of railway traffic, have led to construction of a great number of railway stations/terminals over the past decades. These multi-modal traffic interchanges, based on advanced concepts and properly integrated in urban matrices, are becoming new focal points of urban development. Recent positive experience in the construction of significant railway stations is presented from the standpoint of urban development. Results obtained during analysis of the Belgrade railway station, which is based on the proposed morphological concept, can be used as guidelines for development of other significant railway stations in urban areas.

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