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Modelovanje fokalno-direktrisnih površi za primenu u arhitekturi
Get PDFThe theme of this paper is the modeling of focal-directorial surfaces, starting with their definition, as a locus of points, whose sum of the distances to the focus and/or directrix is constant and predefined. We presented a heuristic algorithm for modeling surfaces and their isocurves, achieved through the use of the Grasshopper visual programming editor in the RhinoCeros environment. Surfaces and their isocurves were generated in a spherical grid, because a Cartesian grid proved unsuitable for the task and the chosen approach. This paper additionally proposes a modeling algorithm of a discrete variation of focal-directorial surfaces. The proposed modeling method is a 3D convex hull implemented on a set of surface points, with the selected points close to that surface. The discrete model is realized both in a Cartesian and spherical grid. There are significant differences between the obtained results.Tema ovog rada je modelovanje fokalno-direktrisnih površi polazeći od njihove definicije, kao geometrijskog mesta tačaka čiji je zbir rastojanja do fokusa i/ili direktrisa konstantan i unapred zadat. Predložen je jedan heuristički algoritam za modelovanje površi i njihovih izolinija koji je realizovan pomoću vizuelnog grafičkog editora Grasshoper u RhinoCeros okruženju. Generisanje površi i njihovih izolinija realizovano je u sfernom gridu, pravougli grid se pokazao kao nepodesan za postavljeni zadatak i pristup. U ovom radu je, dodatno, predložen i algoritam modelovanja diskretne varijante fokalno-direktrisnih površi. Kao način modelovanja, predložen je 3D convex hull primenjen na skupu tačaka površi i izabranih tačaka bliskih toj površi. Diskretni model je realizovan u pravouglom, i u sfernom gridu. Dobijeni su rezultati koji se značajno međusobno razlikuju
Renovation of existing glass facade in order to implement energy efficiency and media facade
Get PDFModern cities and their architectural structures undergo significant functional and physical changes. In recent years, the interventions on building envelopes have increased. Therefore, it is necessary to analyse potential remodeling of glass facades, along with applying the concept of smart technologies, in order to increase energy efficiency of the existing buildings. This paper analyses the modernization process of devastated glass fagade of the tall Slavija hotel, built in 1960s in Belgrade, Serbia, taking into consideration some positive examples of transformation and reskinning of buildings, where the aspect of medialization is an active part of urban renewal. The subject of this paper is the analysis of research findings about the improved thermal comfort of this building, after performing the replacement of its glass fagade and converting the hotel building into an office building. Special attention was paid to the implementation of media technologies and final effects on energy balance of the newly designed facade. The proposed solution is supposed to evaluate the improved thermal comfort that was achieved by a radical renovation of the facade and by replacing the existing facade with a new single facade (double and triple glazed units), with media elements as well as without them. The research results are presented as proposals for improving EE public buildings by implementing the latest system of curtain walls in order to increase the value of the buildings. One of the most important criteria included in the process of energy refurbishment is technological improvement of the existing buildings, along with the presentation of media facades. The case study is based on EnergyPlus simulations.This is the peer-reviewed version of the article: Tovarović, Jasna Čikić, Jelena Ivanović-Šekularac, and Nenad Šekularac. 2017. ‘Renovation of Existing Glass Facade in Order to Implement Energy Efficiency and Media Facade’. Energy and Buildings 152 (October): 653–66. [https://doi.org/10.1016/j.enbuild.2017.07.049
Multilevel governance instruments for achieving balanced urban-rural development
Get PDFSustainable and balanced urban-rural development largely depends on governance system and methods, instruments
and practices deriving from it. Just, efficient and effective governance requires collaboration and sharing of
responsibility in policy formulation and decision-making processes between different stakeholders at different levels
of territorial organization. This implies a complex set of mechanisms, processes and institutions through which
stakeholders can articulate their interests and exercise their rights, but also share ideas, negotiate, reach common
understanding and agree on solution in given circumstances. This paper discusses process and achieved results of
the collaboration between academic institution and local government in the students’ master thesis and integrated
projects development for..........
.....set on application of multilevel governance instruments in order to achieve balanced development of the municipal
territory. Students’ projects address different challenges: devastation of agricultural land; migration of (especially
young) population from rural to urban areas; poor services and low income in rural areas; waste management; neglect
of natural and cultural heritage. The educational approach was designed in order to create learning environment that
foster collaborative learning for all participants involved: students, local stakeholders, consultants and mentors. The
paper has three main parts. The first one provides a brief overview of the theoretical background of the multilevel
governance and collaborative learning and practice oriented educational approach. Second part presents the
objectives of this educational model, methods and structure of the expected deliverables. The third part presents
seven students’ projects that are dealing with urban-rural relationships and highlights key multilevel governance
instruments for the implementation of proposals. Conclusion discusses process and product outcomes differentiating
benefits for all involved, obstacles and challenges and provides recommendations for future work
Achieving the Basic Sustainable Qualities in New Housing in Post-socialist Serbia: Regulation vs. Case-studies
Get PDFIn a period of post-socialist transformation, unexpected and sudden socio-economic changes in society have deeply reflected into urban space. Their influence has been specially observed in the most common spatial elements, such as housing. Thus, the housing has proved to be an evident example of both positive and negative characteristics of post-socialist transformation in urbanism and architecture. The regulation of housing in Serbia has been postponed compared with other post-socialist countries. A few different guidelines for housing design existed in socialist Serbia, but they were overcome in transition period, in early 1990s. Furthermore, the official evaluation of current housing is still an underdeveloped field, regarding to various factors. The differences and deficiencies between housing regulation and related statistic data are among the most noticeable. The implication of such state can be overviewed through housing construction in situ; the quality of new housing projects varies greatly, even by basic characteristics, such as housing area, number of rooms or accessibility to natural lighting. The methodology is critical analysis of existing regulations of housing in Serbia, through the official Act of conditions and normative for the designing of housing buildings and flats, adopted in 2012. The differences and deficiencies between regulation and statistics were the starting-point to define criteria. The relevant case studies were checked through them. The expected contribution of the paper is providing the set of recommendations and guidelines for the improvement of evaluation process of the basic elements of new housing in Serbia as well as other countries with similar background
Decentralised Housing Policy in Socialist Yugoslavia and Its Imprint in Multi-Family Neighbourhoods
Get PDFThe unique experiment of socialist state in the second Yugoslavia (1945-1991) had a profound impact in housing policy. Differently than in other socialist countries, decentralisation played a significant role. Housing followed this policy - it was heavily decentralised to regional and local tier. Therefore, these tiers developed and used their own housing norms and standards and thereby had different spatial reflections on urban fabric across Yugoslavia. However, Yugoslavia was still based on socialist ideology. Accordingly, multi-family neighbourhoods were often built for proletariat in Yugoslavia as the most advanced housing type. But, the aforementioned policy also caused decentralisation-led patterns in housing at urban level – these neighbourhoods were more numerous, but also smaller in size and scattered throughout urban area. The aim of this paper is to explain this process and spatial outcomes in multi-family housing through relevant theory and multi-case study. The study is carried on 6 medium-size cities in the northern Serbian province of Vojvodina. They share similar historic and spatial development. Thus, they are an adequate “polygon” to research separate approaches in situ, caused by decentralised housing policy. It is expected that the research will embrace how these approaches were reflected in concrete cases and which spatial characteristics can be usable for current trends in Serbian cities
Optical phenomena, Moire effect, exhibit 3 [3rd prize]
Get PDFInteraktivni eksponati u parkovima nauke - OPTIČKI FENOMENI predstavljeni su kroz tri eksponata. Svaki od predloženih eksponata (KALEIDOSKOP, KAMERA OPSKURA, MUARE EFEKAT) može biti autonoman – izložen samostalno ili može biti i deo kompozicije koju čini kombinacija dva ili više eksponata.
MUARE EFEKT je oblikovan kao dekorativni element koji sadrži jednostavni mehanizam za postizanje iluzije različitih oblika. Rotacijom pojedinih elemenata na eksponatu veoma lako se postiže predstavljeni efekat. Takođe, ovaj eksponat predstavlja i prostor za relaksaciju u vidu klupe koja pruža mogućnost za sagledavanje efekata senki koje se ostvaruju prolaskom svetlosti kroz dinamičnu strukturu elementa.Interactive exhibits in science parks - OPTICAL PHENOMENA are presented through three exhibits. Designed as an autonomous - independent exhibit - KALEIDOSCOPE, CAMERA OBSCURA, and MOIRE EFFECT can be combined (in pairs, or all of them) to make one dynamic outdoor urban furniture.
MOIRE EFFECT is designed as a bench with decorative elements and a simple mechanism for achieving the illusion of different shapes. The optical effect is very easily achieved by rotating elements on the exhibit. From the bench, while relaxing, users can observe the effects of shadows that are created by the passage of light through the dynamic structure of the rotating elements.3rd PRIZE / treća nagrada na javnom pozivu za izbor projekata promocija i popularizacija nauke i tehnike - Kategorija 4: Idejna rešenja za interaktivne eksponate u parkovima nauke, Centar za promociju nauke, Srbij
Towards socially sustainable healthcare facilities – the role of evidence-based design in regeneration of existing hospitals in Serbia
Get PDFSocial sustainability of existing healthcare (HC) facilities in future will depend on their ability to improve quality and design towards user-oriented performance. Evidence based design presents an adequate tool for analyzing existing and future design of HC facilities. Hospitals in Serbia are in a bad condition, and each year less people are choosing to be treated in public hospitals.
The purpose of this paper is to analyze current design problems by evaluating the social sustainability of existing hospital facilities in Serbia and suggest possible guidelines for further research in this area. The biggest healthcare facility in Serbia called Medical Military Academy (MMA) was selected as a case study. A group of key stakeholders consisted of patients, non-medical and medical staff from the MMA hospital were selected to collaborate. Both qualitative and quantitative methods were used. The methodological framework consists of: fundamental literature review, participant observation, extensive interviews, and surveys. Further analyses were conducted in form of quality assessment from the perspective of aforementioned stakeholders, based on specific set of criteria, divided in two main categories: comfort/distribution and safety/humanization. This evaluation is achieved through technical analyses and qualitative surveys using questionnaires. The preliminary findings identified several key problems in existing design of the hospital, regarding both global social sustainability and specific critical areas.This paper presents in-depth analyses and first assessment of existing hospital design of this kind done in Serbia. New model for evaluation social sustainability of HC infrastructure is established. Results of this research will contribute to improving healthcare infrastructure and could present the first step on the path to creating socially sustainable healthcare facilities in Serbia
Otroški vrtec Dragan Laković, Blok 61, Novi Beograd
Get PDFIzvedeni objekat vrtića u Bloku 61. izložen je u okviru izložbe "Arhitektura, inventura : 2014-2016" članova Društva arhitekata Ljubljana, održane u kulturnom centru Cankarjev dom, 13.02.2017. godin
"Knjiga 1" [Ministarstvo kulture i informisanja, 2017] [otkup umetničkog dela]
No full textOtkup umetničkog rada "Knjiga 1" Ministarstva kulture i informisanje za 2017. godinu po konkursu za finansiranje umetničkih dela iz oblasti vizuelnih umetnosti za 2017. godinu za kolekciju Mašinskog fakulteta Univerziteta u Beogradu
Tweeting in Open Public Space: Case Study Belgrade
Get PDFPublic spaces represent essential elements of vibrant, inclusive, and smart
cities. Being attractive, safe, comfortable, active and sociable, open public spaces play the
main role in revitalizing communities, supporting their sense of identity and culture and
triggering their economic development. Considering the current trends and demands in
design and use of open public spaces, the role of ICT becomes more important. This paper
will present and analyse the connections which are established and intensified between
users and open spaces via online social networks. The emphasis will be on Twitter which
currently has around 300 million active users.
The case study is a network of several open public spaces placed in the historical urban
core of Belgrade. The analysed network presents one of the most attractive and important
urban route for pedestrians with the squares as nodes. The method that was used in analysis
is the method of mapping users on the social maps (via social networks) and through the
other ICT tools. It was based on a new software application – Twitter search engine –
developed at the University of Nis, Faculty of Electronic engineering, during the PhD course
“Advanced topics in data and knowledge engineering”.
The aim was measuring the concentrations of users in open public spaces. The obtained
results have enabled the determination of the image of the open public spaces perceived
by the users, as well as the intensity of users and tweets through the social networks, with
the aim to measure the quality of open public spaces and concentration of users. This
research has indicated the potential of the analysed area for the formation of transverse
and longitudinal pedestrian flows. On the one hand they could enable active use of a
selected segment of the network as one of the most important urban pedestrian route of
the city, as well as to improve the image of it