Dzenis Avdic - Academia.edu (original) (raw)
Papers by Dzenis Avdic
IOP Conference Series: Materials Science and Engineering, 2020
The unexpected loss of values, as one result of the total destruction during the armed conflicts ... more The unexpected loss of values, as one result of the total destruction during the armed conflicts and war, put us on the challenge to properly decide about methods of rehabilitation, and integrating and understanding values and actions that could vary from restoration to, in many cases, even full reconstruction. During the 1992-1995 war in BiH, many valuable assets of cultural heritage like national monuments, historical places, and historical structures were damaged and/or destroyed. After the aggression, the first step has been to regain and/or establish the function of the places destroyed, while for the cultural heritage assets these attempts called for the approaches more careful. It is not only that the importance or the significance of places and structures destructed is different, the level of destruction also is. These inputs are essential in having preparedness for any action when without possibilities to rely on unique methodology. Even though it is now 20 years after the ...
IOP Conference Series: Materials Science and Engineering, 2017
Among other pieces of architectural historical heritage in Sarajevo, and Bosnia-Herzegovina in ge... more Among other pieces of architectural historical heritage in Sarajevo, and Bosnia-Herzegovina in general, the Austro-Hungarian architecture has preserved its original architectural, artistic and engineering characteristics. Both residential and public representative urban blocks, streets and squares are of distinguishable ambience in the architectural and urban image of the city and are testifying about our architectural past. A number of buildings is valorised and protected by law in terms of their architectural, artistic and historical value. In addition, these buildings have a distinct functional, ambiental, historical, and even aesthetical value. To make them last longer, refurbishment of these buildings is challenging and presents potential and multiple benefits for the city, and beyond. Refurbishing built environment through functional reorganizing, redesign and energy efficiency measures applications could result in prolonged longevity, architectural identity preservation and interior comfort improvement. Besides, implemented measures for energy efficiency, through the refurbishment process, should optimize the needs for energy consumption in treated buildings. This paper defines options in comfort improvements and redesign, without implying risks to the building longevity, analyses interventions and energy efficiency measures which would enable potential energy saving assessment in the refurbishment process of masonry buildings. This paper also discusses the different techniques that can be adopted for conservation and preservation of historical masonry buildings from the Austro-Hungarian period dealing with energy efficiency. The works were preceded by historical research and on-site investigations. This paper describes a methodology to quantify their vulnerability. A scheme of structural retrofitting is suggested following the research conducted. Revitalization of the building consisted in the reconstruction of the old building structure, creating the inner courtyard and covering it with a glass roof.
IV KONFERENCIJA O URBANOM PLANIRANJU I REGIONALNOM RAZVOJU / IV CONFERENCE ON URBAN PLANNING AND REGIONAL DEVELOPMENT, 2023
Cities are complex, multi-layered systems that include many measurable and non-measurable paramet... more Cities are complex, multi-layered systems that include many measurable and non-measurable parameters in the process of spatial and urban planning. From the historical development of the settlements to the increase in the capacity of inhabitants and different ways of communication and business in the built urban fabric, the importance of the individual layers that make it up as a whole also changes. However, the layer that should always have the greatest importance, and which has been present since the beginning of the formation of settlements, is the people - the inhabitants of the settlements. With a very complex political and socio-economic system, as well as, the corruption that is present within it, the decision-making processes in Sarajevo very often result in a series of poor solutions in the urban fabric of the city. In the contemporary profit-oriented accelerated construction that takes precedence in the urbanism of Sarajevo, good practices have a difficult task of becoming successful examples and set principles for future development. In addition to certain layers being excluded through the process of urban planning, very often in practice, they also lead to deviations and chain-linked improvisations intending to undo the damage in already built tissue. This, even in the long term, has a very negative effect on the entire process of city development in the urban sense. It is necessary to implement all processes in a bottom-up approach to harmonize them with spatial plans and potential scenarios for the expansion and development of the city. To enable a participatory process of urban design and planning, we developed the Urban Design Studio Sarajevo for the population to regain its importance in deciding on interventions in the city. In addition, through informing and educating the public, we tried to present good practices and the city as a multi-layered complex system as it is in real practice, to show the interdependence of layers and the possibility of checking certain processes both on the macro and micro scale of the city. We try to enable the bottom-up approach by analyzing and synchronizing the measured parameters within the city fabric with limited, publicly available generalized data. Research that is based on unfounded assumptions, and incomplete and/or inaccurate data usually results in a series of bad decisions in urban areas. As the majority of publicly available data on individual layers of the urban environment is insufficient for thorough analysis in the process of urban planning or is generalized in the form of annual reports, we primarily tried to establish complete sets of input data. One of the tools in the methodological process was a mobile studio equipped with LIDAR sensors for measuring the speed and direction of air movement in certain parts of the city and micro-locations. In addition to establishing input parameters for CFD simulations and analyzing the impact of built structures in the fabric of the city through development scenarios, this tool was also used to validate the results of the multi-layer, multidisciplinary, and transdisciplinary simulations from the EnerPol framework. Along with the inclusion, the process of urban design and planning examination was made to introduce some predictive tools for evaluating possible development options and scenarios that include both good and bad decisions. This paper aims to show the importance of analyzing the parameters that belong to urban planning processes, to eventually, transform valid results towards more precise decisions for future urban developments in Sarajevo. The importance of research projects, informing and educating the public, regardless of the political and economic circumstances, is a fundamental factor for the successful development of the city, both in the process of planning and designing and in the urban and architectural practice.
The purpose of this paper is to examine the roleof the Programme for Higher Education, Research a... more The purpose of this paper is to examine the roleof the Programme for Higher Education, Research and Development in the Western Balkans 2010-2016 (the HERD programme) in the process of improving the curriculum at the Faculty of Architecture in Sarajevo. In its history of 67 years, the Faculty of Architecture in Sarajevo has changed the curriculum only a few times.With the introduction of the Bologna process at the University of Sarajevo, the Faculty of Architecture was the first to adopt the European Credit Transfer and Accumulation System (ECTS) and changed its structure from the former five-year graduate course to a Bachelor and Master course (3+2 years respectively). This transition, however, has left many scars.This paper will explore the reasons behind this reluctance to change and how, as a significant change, the HERD programme has contributed to the development of a new curriculum at the Faculty of Architecture.
IOP Conference Series: Materials Science and Engineering, 2020
Old masonry towers, in all their variety – be it a bell tower, a city tower, clock tower, inhabit... more Old masonry towers, in all their variety – be it a bell tower, a city tower, clock tower, inhabited residential towers, and/or guard/watchtowers – can be found all around the world representing typical urban centre feature, and in some cases –they are the countryside panorama landmark. Statics analysis and calculation are the first steps towards engineering interventions on cultural and historical heritage buildings. In the structural analysis of clock towers, the typical critical points and places where crucial damages that could lead to the collapse, are expected are in the top sections of the building - where the oscillation amplitude reaches its maximal value. Effect on building structure is observed concerning the oscillation frequency and building’s own frequency and energy, which can explain why minaret towers and high slim towers, in some cases, can better withstand earthquakes than extremely rigid buildings; given that the resonance, low-quality materials and other factors ...
IOP Conference Series: Materials Science and Engineering, 2020
In the protection of historical heritage evaluating the current state of a facility is a very imp... more In the protection of historical heritage evaluating the current state of a facility is a very important phase since it provides for the project framework and the decision-making guidelines, which is all crucial for the final goal – protection of Gradačac Old Town complex. There are several historical layers encompassed by Gradačac Old Town - starting from the medieval fortification system, expanding to the Ottomans’ period where main buildings (a residential tower, a clock tower, and a mosque) were added by the Ottomans, extending and continuing the works on adding a library and a gymnasium in the Austro-Hungarian period. The overall Complex flows with the natural morphology of the terrain; nowadays these green areas are used as the main city park. Complex of Gradačac has two separate fortification zones, the main area of around 33 000 m2, and the accentuated part with the tower, of around 3 000 m2. The fortification (The Old Town) ground plan is approximately a square one, with sid...
Journal of Pervasive Technology, 2021
During recent and ongoing pandemic circumstances, a lot of architectural spaces were adapted for ... more During recent and ongoing pandemic circumstances, a lot of architectural spaces were adapted for use not designed for. Besides ergonomics and comfortable furniture, occupational health hazards include more indoor air pollution induced by functionally over-saturated architectural spaces. This paper discusses options and proposes an algorithm to improve air quality inside mixed-use micro apartment using low energy consumption embedded artificial intelligence (AI) systems to assist users in passive ventilation usage. Through data collected for observed case, algorithm is explained and tested both in terms of feasibility in low power embedding and energy efficiency annual savings by using assisted passive ventilation. Air pollution and progressively unsustainable old, built-in materials and infrastructural systems in existing buildings with limited to none energy upgrade options need solutions for maintaining comfortable and healthy indoor environmental conditions. Proposed low power embedded, ambient intelligence system provides solutions for such architectural spaces. Case study included a variety of parameters in a complex physical model, and through data feature engineering most influential parameters were chosen. Time series forecasting for predictive maintenance of air quality and built-in materials was tested through three different models: ARIMA, Facebook's Prophet and Tensorflow recurrent neural network (RNN) with gated recurrent units (GRUs). Machine learning algorithm (TinyML) was deployed to Arduino Nano 33 BLE Sense microcontroller board in testing phase, to prove simplicity and feasibility of chosen AI neural network. Validation is provided through simulation on collected data, to show ventilation energy savings by using AI assisted passive ventilation.
In the protection of historical heritage evaluating the current state of a facility is a very imp... more In the protection of historical heritage evaluating the current state of a facility is a very important phase since it provides for the project framework and the decision-making guidelines, which is all crucial for the final goal-protection of Gradačac Old Town complex. There are several historical layers encompassed by Gradačac Old Town-starting from the medieval fortification system, expanding to the Ottomans' period where main buildings (a residential tower, a clock tower, and a mosque) were added by the Ottomans, extending and continuing the works on adding a library and a gymnasium in the Austro-Hungarian period. The overall Complex flows with the natural morphology of the terrain; nowadays these green areas are used as the main city park. Complex of Gradačac has two separate fortification zones, the main area of around 33 000 m 2 , and the accentuated part with the tower, of around 3 000 m 2. The fortification (The Old Town) ground plan is approximately a square one, with sides from 180 to 200 m, consisting of the two main parts: The Lower and the Upper City. In the northwest area, there's the Upper City (fortification inside the fortification, namely Husein-Captain Gradaščević's Tower). The Old Town is accessed through three gates: The North (the main gate), the South, and the West gate. Upper City with Husein-Captain Gradaščević's tower is positioned on the topmost point in the north side of the fortification complex. It rests on a terrace which encloses it from the south and the east side. On the north side of the Upper City, there are outer perimeter walls constituent to the whole of the Complex. Architectural heritage preservation and valorisation are increasingly important social and economic issue in many countries. The issues encountered in these undertakings range from defining and choosing required level of safety, via the question of electing methodologies relevant for contracting reliable structural analyses and safety checkups , up to choosing the design and installation of suitable materials, and the intervention.
Old masonry towers, in all their variety-be it a bell tower, a city tower, clock tower, inhabited... more Old masonry towers, in all their variety-be it a bell tower, a city tower, clock tower, inhabited residential towers, and/or guard/watchtowers-can be found all around the world representing typical urban centre feature, and in some cases-they are the countryside panorama landmark. Statics analysis and calculation are the first steps towards engineering interventions on cultural and historical heritage buildings. In the structural analysis of clock towers, the typical critical points and places where crucial damages that could lead to the collapse, are expected are in the top sections of the building-where the oscillation amplitude reaches its maximal value. Effect on building structure is observed concerning the oscillation frequency and building's own frequency and energy, which can explain why minaret towers and high slim towers, in some cases, can better withstand earthquakes than extremely rigid buildings; given that the resonance, low-quality materials and other factors can lead to the vulnerability of a building structure. This type of building is designed on a simple, regular shape ground plan, or, in other words, the towers have a symmetrical ground plan and uniformly distributed mass and height. The second statement provides that, depending on building materials used and the cross-section dimensions, towers can be very heavy, which can cause the appearance of significant inertia forces during earthquake oscillations. If there's mass eccentricity, the horizontal loads could tip the building over. Gradačac clock tower's load-bearing structural walls are built with masonry stone blocks. The vertical loads are, via slabs and wooden beams, conducted to the walls and down to the foundations. Foundation structure consists of a slab, 80cm thick, positioned at-8.25m which sits on a well-compacted layer of soil. Wooden staircases are used for vertical transportation between storeys. Structural analysis calculation is based on a 3D model of a building and is performed by using the finite elements method (FEM) in Tower calculation software. The requirements for the authenticity in preservation actions imply that the interpretation and the presentation must correlate with basic authenticity principles, in compliance to Nara document (ICOMOS, 1994), protecting cultural values, from both-the hazardous influences of intrusive infrastructure and load of visitors, and incorrect and inappropriate interpretations.
Energy efficiency of contemporary architectural structures is no longer an expression of modernit... more Energy efficiency of contemporary architectural structures is no longer an expression of modernity, but a necessity which should be immanent to all newly-built objects. What is it, then, that makes structures " modern " in the time when architectural form is not sufficient enough to pronounce a particular structure unique? The single family house modernity can be observed through a series of interlaced characteristics, which can be interpreted correctly only by adopting a holistic approach. Thus, discourse and articulation of architectural form are taking place in parallel to materialisation. Materialisation makes the form possible by giving it an opportunity to improve to the level when it becomes a symbolic representation of local architectural expression– a part of spatial identity. by using passive housing strategies and traditional construction principles through materialisation of form and spatial articulation, the single family house is provided with a new expression which gives it a unique, state of the art " modernity ". Materialisation of form in contemporary construction is possible through a wide range of applicable materials and equally satisfying final results. Through case studies and a comparative analysis of architectural envelope layers, it is possible to show advantages of locally available materials in contemporary construction details with regard to the usual contemporary construction, comparing them in terms of sustainability in energy performance and guaranteed lifetime. Modernity issues of single family housing in the contemporary architectural expression are based on the identity discourse in the local context through sustainability adjustments to global trends.
Books by Dzenis Avdic
This text gives the history of the judiciary in Bosnia and Herzegovina and, within that context, ... more This text gives the history of the judiciary in Bosnia and Herzegovina and, within that context, the history of the Judicial Palace building. This is a very important segment of the publication as it provides the context for understanding the significance of this monumental building. The second text, which discusses the legal aspect of this project, provides the necessary information on regulations and procedures regarding the protection of monuments to which the Judicial Palace belongs.
Tekst o historiji sudstva i sudova u Bosni i Hercegovini daje historijat pravosuđa u Bosni i Hercegovini i u tom okviru historijat zgrade Pravosudne palate. To je veoma važan segment ove publikacije, jer osigurava kontekst za razumijevanje značaja ove monumentalne građevine. Drugi tekst koji govori o pravnom aspektu ovog projekta daje neophodne podatke o propisima i postupku koji se tiču zaštite spomenika u koje spada Pravosudna palata. U cjelini smatram ovaj rukopis u djelovima koji se tiču pravnog aspekta, dobro koncipiranim, znalački napisanim i vrlo korisnim za stručnu i drugu javnost.
(Prof. dr. Fikret Karčić)
Chapter in an edited book by Dzenis Avdic
Cities and Cultural Landscapes: Recognition, Celebration, Preservation and Experience, 2020
Strategies for a healthier life and a better natural environment remain one of the main topics ... more Strategies for a healthier life and a better natural environment remain
one of the main topics in social science, but we still witness a poor
relationship between our society and both the natural and built
environments. One of the most common effects of global warming is
thermal heating of cities. This is responsible for about 40 % of total annual
energy consumption and one third of carbon dioxide emissions (UNEP,
2009). One of the most widespread effects of global warming is the
increasing temperature of cities, i.e., the emergence of heat islands or
urban pollution (urban heat island or UHI).
Eco-friendly, green, and sustainable architecture is a synonym for a
holistic approach, both in terms of architectural and urban design and
work undertaken on existing structures. A passive strategy in sustainable
architecture, one that promotes a relationship between the natural and built
environments, is the greening of existing roofs.
Among passive strategies for sustainable construction and an
environmentally acceptable, responsible, and positive relationship with the
natural and built environments, the greening of buildings is a natural
model to achieve energy-efficient measures for existing buildings. The
greening of roofs on existing buildings of collective housing, in the
category of smaller residential buildings, which are the most numerous
type in Bosnia and Herzegovina (58 %), highlights its potential as a
measure to improve the energy characteristics of these buildings and to
reduce urban pollution.
This paper gives a review of structures built in the Sarajevo Canton in
the last half of the twentieth century, pointing out the need for their
restoration through greening of flat roofs in the context of sustainability
and their contributing to lowering the thermal heating of the city. Through
analysis, including analysis of the structural and material aspects of flat
roofs in the built environment, this research indicates possibilities and
architectural solutions for greening flat roofs on existing residential
buildings for different loads, depending on the typology and materials
used.
Talks by Dzenis Avdic
Narodno pozorište u Sarajevu, četvrtak, 24. 6. 2021. u 10,30 sati
Reviews by other authors by Dzenis Avdic
Oslobođenje, 2021
Prikaz knjige Chabbouh-Akšamija, L., Hebib, M., Akšamija, A. & Avdić, Dž. (2020). Pravosudna pala... more Prikaz knjige Chabbouh-Akšamija, L., Hebib, M., Akšamija, A. & Avdić, Dž. (2020). Pravosudna palata: elaborat zaštite fasadnog platna (Judicial Palace. Study on protection of building's facade). Sarajevo: Pravni fakultet Univerziteta u Sarajevu.
Oslobodjenje, 3. i 4. 7. 2021. godine
IOP Conference Series: Materials Science and Engineering, 2020
The unexpected loss of values, as one result of the total destruction during the armed conflicts ... more The unexpected loss of values, as one result of the total destruction during the armed conflicts and war, put us on the challenge to properly decide about methods of rehabilitation, and integrating and understanding values and actions that could vary from restoration to, in many cases, even full reconstruction. During the 1992-1995 war in BiH, many valuable assets of cultural heritage like national monuments, historical places, and historical structures were damaged and/or destroyed. After the aggression, the first step has been to regain and/or establish the function of the places destroyed, while for the cultural heritage assets these attempts called for the approaches more careful. It is not only that the importance or the significance of places and structures destructed is different, the level of destruction also is. These inputs are essential in having preparedness for any action when without possibilities to rely on unique methodology. Even though it is now 20 years after the ...
IOP Conference Series: Materials Science and Engineering, 2017
Among other pieces of architectural historical heritage in Sarajevo, and Bosnia-Herzegovina in ge... more Among other pieces of architectural historical heritage in Sarajevo, and Bosnia-Herzegovina in general, the Austro-Hungarian architecture has preserved its original architectural, artistic and engineering characteristics. Both residential and public representative urban blocks, streets and squares are of distinguishable ambience in the architectural and urban image of the city and are testifying about our architectural past. A number of buildings is valorised and protected by law in terms of their architectural, artistic and historical value. In addition, these buildings have a distinct functional, ambiental, historical, and even aesthetical value. To make them last longer, refurbishment of these buildings is challenging and presents potential and multiple benefits for the city, and beyond. Refurbishing built environment through functional reorganizing, redesign and energy efficiency measures applications could result in prolonged longevity, architectural identity preservation and interior comfort improvement. Besides, implemented measures for energy efficiency, through the refurbishment process, should optimize the needs for energy consumption in treated buildings. This paper defines options in comfort improvements and redesign, without implying risks to the building longevity, analyses interventions and energy efficiency measures which would enable potential energy saving assessment in the refurbishment process of masonry buildings. This paper also discusses the different techniques that can be adopted for conservation and preservation of historical masonry buildings from the Austro-Hungarian period dealing with energy efficiency. The works were preceded by historical research and on-site investigations. This paper describes a methodology to quantify their vulnerability. A scheme of structural retrofitting is suggested following the research conducted. Revitalization of the building consisted in the reconstruction of the old building structure, creating the inner courtyard and covering it with a glass roof.
IV KONFERENCIJA O URBANOM PLANIRANJU I REGIONALNOM RAZVOJU / IV CONFERENCE ON URBAN PLANNING AND REGIONAL DEVELOPMENT, 2023
Cities are complex, multi-layered systems that include many measurable and non-measurable paramet... more Cities are complex, multi-layered systems that include many measurable and non-measurable parameters in the process of spatial and urban planning. From the historical development of the settlements to the increase in the capacity of inhabitants and different ways of communication and business in the built urban fabric, the importance of the individual layers that make it up as a whole also changes. However, the layer that should always have the greatest importance, and which has been present since the beginning of the formation of settlements, is the people - the inhabitants of the settlements. With a very complex political and socio-economic system, as well as, the corruption that is present within it, the decision-making processes in Sarajevo very often result in a series of poor solutions in the urban fabric of the city. In the contemporary profit-oriented accelerated construction that takes precedence in the urbanism of Sarajevo, good practices have a difficult task of becoming successful examples and set principles for future development. In addition to certain layers being excluded through the process of urban planning, very often in practice, they also lead to deviations and chain-linked improvisations intending to undo the damage in already built tissue. This, even in the long term, has a very negative effect on the entire process of city development in the urban sense. It is necessary to implement all processes in a bottom-up approach to harmonize them with spatial plans and potential scenarios for the expansion and development of the city. To enable a participatory process of urban design and planning, we developed the Urban Design Studio Sarajevo for the population to regain its importance in deciding on interventions in the city. In addition, through informing and educating the public, we tried to present good practices and the city as a multi-layered complex system as it is in real practice, to show the interdependence of layers and the possibility of checking certain processes both on the macro and micro scale of the city. We try to enable the bottom-up approach by analyzing and synchronizing the measured parameters within the city fabric with limited, publicly available generalized data. Research that is based on unfounded assumptions, and incomplete and/or inaccurate data usually results in a series of bad decisions in urban areas. As the majority of publicly available data on individual layers of the urban environment is insufficient for thorough analysis in the process of urban planning or is generalized in the form of annual reports, we primarily tried to establish complete sets of input data. One of the tools in the methodological process was a mobile studio equipped with LIDAR sensors for measuring the speed and direction of air movement in certain parts of the city and micro-locations. In addition to establishing input parameters for CFD simulations and analyzing the impact of built structures in the fabric of the city through development scenarios, this tool was also used to validate the results of the multi-layer, multidisciplinary, and transdisciplinary simulations from the EnerPol framework. Along with the inclusion, the process of urban design and planning examination was made to introduce some predictive tools for evaluating possible development options and scenarios that include both good and bad decisions. This paper aims to show the importance of analyzing the parameters that belong to urban planning processes, to eventually, transform valid results towards more precise decisions for future urban developments in Sarajevo. The importance of research projects, informing and educating the public, regardless of the political and economic circumstances, is a fundamental factor for the successful development of the city, both in the process of planning and designing and in the urban and architectural practice.
The purpose of this paper is to examine the roleof the Programme for Higher Education, Research a... more The purpose of this paper is to examine the roleof the Programme for Higher Education, Research and Development in the Western Balkans 2010-2016 (the HERD programme) in the process of improving the curriculum at the Faculty of Architecture in Sarajevo. In its history of 67 years, the Faculty of Architecture in Sarajevo has changed the curriculum only a few times.With the introduction of the Bologna process at the University of Sarajevo, the Faculty of Architecture was the first to adopt the European Credit Transfer and Accumulation System (ECTS) and changed its structure from the former five-year graduate course to a Bachelor and Master course (3+2 years respectively). This transition, however, has left many scars.This paper will explore the reasons behind this reluctance to change and how, as a significant change, the HERD programme has contributed to the development of a new curriculum at the Faculty of Architecture.
IOP Conference Series: Materials Science and Engineering, 2020
Old masonry towers, in all their variety – be it a bell tower, a city tower, clock tower, inhabit... more Old masonry towers, in all their variety – be it a bell tower, a city tower, clock tower, inhabited residential towers, and/or guard/watchtowers – can be found all around the world representing typical urban centre feature, and in some cases –they are the countryside panorama landmark. Statics analysis and calculation are the first steps towards engineering interventions on cultural and historical heritage buildings. In the structural analysis of clock towers, the typical critical points and places where crucial damages that could lead to the collapse, are expected are in the top sections of the building - where the oscillation amplitude reaches its maximal value. Effect on building structure is observed concerning the oscillation frequency and building’s own frequency and energy, which can explain why minaret towers and high slim towers, in some cases, can better withstand earthquakes than extremely rigid buildings; given that the resonance, low-quality materials and other factors ...
IOP Conference Series: Materials Science and Engineering, 2020
In the protection of historical heritage evaluating the current state of a facility is a very imp... more In the protection of historical heritage evaluating the current state of a facility is a very important phase since it provides for the project framework and the decision-making guidelines, which is all crucial for the final goal – protection of Gradačac Old Town complex. There are several historical layers encompassed by Gradačac Old Town - starting from the medieval fortification system, expanding to the Ottomans’ period where main buildings (a residential tower, a clock tower, and a mosque) were added by the Ottomans, extending and continuing the works on adding a library and a gymnasium in the Austro-Hungarian period. The overall Complex flows with the natural morphology of the terrain; nowadays these green areas are used as the main city park. Complex of Gradačac has two separate fortification zones, the main area of around 33 000 m2, and the accentuated part with the tower, of around 3 000 m2. The fortification (The Old Town) ground plan is approximately a square one, with sid...
Journal of Pervasive Technology, 2021
During recent and ongoing pandemic circumstances, a lot of architectural spaces were adapted for ... more During recent and ongoing pandemic circumstances, a lot of architectural spaces were adapted for use not designed for. Besides ergonomics and comfortable furniture, occupational health hazards include more indoor air pollution induced by functionally over-saturated architectural spaces. This paper discusses options and proposes an algorithm to improve air quality inside mixed-use micro apartment using low energy consumption embedded artificial intelligence (AI) systems to assist users in passive ventilation usage. Through data collected for observed case, algorithm is explained and tested both in terms of feasibility in low power embedding and energy efficiency annual savings by using assisted passive ventilation. Air pollution and progressively unsustainable old, built-in materials and infrastructural systems in existing buildings with limited to none energy upgrade options need solutions for maintaining comfortable and healthy indoor environmental conditions. Proposed low power embedded, ambient intelligence system provides solutions for such architectural spaces. Case study included a variety of parameters in a complex physical model, and through data feature engineering most influential parameters were chosen. Time series forecasting for predictive maintenance of air quality and built-in materials was tested through three different models: ARIMA, Facebook's Prophet and Tensorflow recurrent neural network (RNN) with gated recurrent units (GRUs). Machine learning algorithm (TinyML) was deployed to Arduino Nano 33 BLE Sense microcontroller board in testing phase, to prove simplicity and feasibility of chosen AI neural network. Validation is provided through simulation on collected data, to show ventilation energy savings by using AI assisted passive ventilation.
In the protection of historical heritage evaluating the current state of a facility is a very imp... more In the protection of historical heritage evaluating the current state of a facility is a very important phase since it provides for the project framework and the decision-making guidelines, which is all crucial for the final goal-protection of Gradačac Old Town complex. There are several historical layers encompassed by Gradačac Old Town-starting from the medieval fortification system, expanding to the Ottomans' period where main buildings (a residential tower, a clock tower, and a mosque) were added by the Ottomans, extending and continuing the works on adding a library and a gymnasium in the Austro-Hungarian period. The overall Complex flows with the natural morphology of the terrain; nowadays these green areas are used as the main city park. Complex of Gradačac has two separate fortification zones, the main area of around 33 000 m 2 , and the accentuated part with the tower, of around 3 000 m 2. The fortification (The Old Town) ground plan is approximately a square one, with sides from 180 to 200 m, consisting of the two main parts: The Lower and the Upper City. In the northwest area, there's the Upper City (fortification inside the fortification, namely Husein-Captain Gradaščević's Tower). The Old Town is accessed through three gates: The North (the main gate), the South, and the West gate. Upper City with Husein-Captain Gradaščević's tower is positioned on the topmost point in the north side of the fortification complex. It rests on a terrace which encloses it from the south and the east side. On the north side of the Upper City, there are outer perimeter walls constituent to the whole of the Complex. Architectural heritage preservation and valorisation are increasingly important social and economic issue in many countries. The issues encountered in these undertakings range from defining and choosing required level of safety, via the question of electing methodologies relevant for contracting reliable structural analyses and safety checkups , up to choosing the design and installation of suitable materials, and the intervention.
Old masonry towers, in all their variety-be it a bell tower, a city tower, clock tower, inhabited... more Old masonry towers, in all their variety-be it a bell tower, a city tower, clock tower, inhabited residential towers, and/or guard/watchtowers-can be found all around the world representing typical urban centre feature, and in some cases-they are the countryside panorama landmark. Statics analysis and calculation are the first steps towards engineering interventions on cultural and historical heritage buildings. In the structural analysis of clock towers, the typical critical points and places where crucial damages that could lead to the collapse, are expected are in the top sections of the building-where the oscillation amplitude reaches its maximal value. Effect on building structure is observed concerning the oscillation frequency and building's own frequency and energy, which can explain why minaret towers and high slim towers, in some cases, can better withstand earthquakes than extremely rigid buildings; given that the resonance, low-quality materials and other factors can lead to the vulnerability of a building structure. This type of building is designed on a simple, regular shape ground plan, or, in other words, the towers have a symmetrical ground plan and uniformly distributed mass and height. The second statement provides that, depending on building materials used and the cross-section dimensions, towers can be very heavy, which can cause the appearance of significant inertia forces during earthquake oscillations. If there's mass eccentricity, the horizontal loads could tip the building over. Gradačac clock tower's load-bearing structural walls are built with masonry stone blocks. The vertical loads are, via slabs and wooden beams, conducted to the walls and down to the foundations. Foundation structure consists of a slab, 80cm thick, positioned at-8.25m which sits on a well-compacted layer of soil. Wooden staircases are used for vertical transportation between storeys. Structural analysis calculation is based on a 3D model of a building and is performed by using the finite elements method (FEM) in Tower calculation software. The requirements for the authenticity in preservation actions imply that the interpretation and the presentation must correlate with basic authenticity principles, in compliance to Nara document (ICOMOS, 1994), protecting cultural values, from both-the hazardous influences of intrusive infrastructure and load of visitors, and incorrect and inappropriate interpretations.
Energy efficiency of contemporary architectural structures is no longer an expression of modernit... more Energy efficiency of contemporary architectural structures is no longer an expression of modernity, but a necessity which should be immanent to all newly-built objects. What is it, then, that makes structures " modern " in the time when architectural form is not sufficient enough to pronounce a particular structure unique? The single family house modernity can be observed through a series of interlaced characteristics, which can be interpreted correctly only by adopting a holistic approach. Thus, discourse and articulation of architectural form are taking place in parallel to materialisation. Materialisation makes the form possible by giving it an opportunity to improve to the level when it becomes a symbolic representation of local architectural expression– a part of spatial identity. by using passive housing strategies and traditional construction principles through materialisation of form and spatial articulation, the single family house is provided with a new expression which gives it a unique, state of the art " modernity ". Materialisation of form in contemporary construction is possible through a wide range of applicable materials and equally satisfying final results. Through case studies and a comparative analysis of architectural envelope layers, it is possible to show advantages of locally available materials in contemporary construction details with regard to the usual contemporary construction, comparing them in terms of sustainability in energy performance and guaranteed lifetime. Modernity issues of single family housing in the contemporary architectural expression are based on the identity discourse in the local context through sustainability adjustments to global trends.
This text gives the history of the judiciary in Bosnia and Herzegovina and, within that context, ... more This text gives the history of the judiciary in Bosnia and Herzegovina and, within that context, the history of the Judicial Palace building. This is a very important segment of the publication as it provides the context for understanding the significance of this monumental building. The second text, which discusses the legal aspect of this project, provides the necessary information on regulations and procedures regarding the protection of monuments to which the Judicial Palace belongs.
Tekst o historiji sudstva i sudova u Bosni i Hercegovini daje historijat pravosuđa u Bosni i Hercegovini i u tom okviru historijat zgrade Pravosudne palate. To je veoma važan segment ove publikacije, jer osigurava kontekst za razumijevanje značaja ove monumentalne građevine. Drugi tekst koji govori o pravnom aspektu ovog projekta daje neophodne podatke o propisima i postupku koji se tiču zaštite spomenika u koje spada Pravosudna palata. U cjelini smatram ovaj rukopis u djelovima koji se tiču pravnog aspekta, dobro koncipiranim, znalački napisanim i vrlo korisnim za stručnu i drugu javnost.
(Prof. dr. Fikret Karčić)
Cities and Cultural Landscapes: Recognition, Celebration, Preservation and Experience, 2020
Strategies for a healthier life and a better natural environment remain one of the main topics ... more Strategies for a healthier life and a better natural environment remain
one of the main topics in social science, but we still witness a poor
relationship between our society and both the natural and built
environments. One of the most common effects of global warming is
thermal heating of cities. This is responsible for about 40 % of total annual
energy consumption and one third of carbon dioxide emissions (UNEP,
2009). One of the most widespread effects of global warming is the
increasing temperature of cities, i.e., the emergence of heat islands or
urban pollution (urban heat island or UHI).
Eco-friendly, green, and sustainable architecture is a synonym for a
holistic approach, both in terms of architectural and urban design and
work undertaken on existing structures. A passive strategy in sustainable
architecture, one that promotes a relationship between the natural and built
environments, is the greening of existing roofs.
Among passive strategies for sustainable construction and an
environmentally acceptable, responsible, and positive relationship with the
natural and built environments, the greening of buildings is a natural
model to achieve energy-efficient measures for existing buildings. The
greening of roofs on existing buildings of collective housing, in the
category of smaller residential buildings, which are the most numerous
type in Bosnia and Herzegovina (58 %), highlights its potential as a
measure to improve the energy characteristics of these buildings and to
reduce urban pollution.
This paper gives a review of structures built in the Sarajevo Canton in
the last half of the twentieth century, pointing out the need for their
restoration through greening of flat roofs in the context of sustainability
and their contributing to lowering the thermal heating of the city. Through
analysis, including analysis of the structural and material aspects of flat
roofs in the built environment, this research indicates possibilities and
architectural solutions for greening flat roofs on existing residential
buildings for different loads, depending on the typology and materials
used.
Oslobođenje, 2021
Prikaz knjige Chabbouh-Akšamija, L., Hebib, M., Akšamija, A. & Avdić, Dž. (2020). Pravosudna pala... more Prikaz knjige Chabbouh-Akšamija, L., Hebib, M., Akšamija, A. & Avdić, Dž. (2020). Pravosudna palata: elaborat zaštite fasadnog platna (Judicial Palace. Study on protection of building's facade). Sarajevo: Pravni fakultet Univerziteta u Sarajevu.
Oslobodjenje, 3. i 4. 7. 2021. godine