bluuebunny/crossref_metadata_2025 huggingface dataset:
The phenomenon of urban fringe settlements in the south-north region of Malang City
Authors: Purnamasari W D , Anfansyah R
Published: December 2021

The City of Malang grows annually along with the implementation of its spatial policy. One of the policies that stimulates movement into the city is the development of land for settlements. Limited land and high demands have led to the expansion of settlements towards the urban fringe of Malang City, especially for the south-north region. The purpose of this study was to identify the characteristics of settlements in the north-south regions of Malang City. The variables studied consisted of patterns and types of settlement, land use and land cover, land prices, housing density, and the population. The five aspects of the settlement were studied using the descriptive statistical analysis methods and spatial mapping. The results of descriptive statistical analysis show that there are different characteristics of settlements in the north-south regions of Malang City. The difference can be seen in the four aspects, such as land use and land cover, land prices, housing density, and population. Meanwhile, based on the results of spatial mapping analysis, the different characteristics occurs due to the availability of road access and proximity to city-regional-scale facilities.
The application of MFA for rural industrial symbiosis assessment
Authors: Agustina D , Wicaksono A D , Meidiana C
Published: December 2021

One of proposed strategies to solve current environmental challenges includes the industrial symbiosis. However, proper evaluation methods are required to measure the potential benefits of industrial symbiosis, one of those includes the material flow analysis (MFA). MFA develops a unified database and a Step-by-Step process starting from the input, process, and output process to clarify the distribution of waste and the recycling process in the aluminum industry. The aluminum industry is regarded as an energy-intensive and high-pollution industry. The development of industrial symbiosis in the aluminum industry has significantly reduced environmental pressures and facilitated green development and green industry. Home industries that process aluminum slag raw materials require high energy thereby generating high waste during the production process. The applied method includes material flow analysis (MFA). The MFA results indicated that the production elements of the aluminum slag industry consist of 11 elements ranging from raw materials, fuel, clean water, human resources, capital, production processes, production equipment, housekeeping, products produced, waste to waste utilization. Approximately 44% of the industry sold waste to other industries, 42% of the waste was reprocessed, and 14% of the aluminum industry stockpiles production was in the form of waste in open spaces. The industrial symbiosis in the aluminum industry was an open cycle, indicating that the symbiosis produces waste, which had not been fully utilized; but in fact, the waste had potential as a source of raw materials, energy, and materials in other industrial processes.
Disaster risk reduction through the reform of spatial structure and land use planning in Banda Aceh City
Authors: Tiar P P , Fiza  , Ricki G , Pradizzia T I
Published: December 2021

Reform of spatial structure and land use planning aims to reduce disaster risk and protect development outcomes. Ignoring spatial reform will increase the risk of more significant damage. A resilient city has the essential character to survive and to bounce back in no time. This decade, the development of global countries has focused on investing in resilience to protect development outcomes, including livelihoods. This study aims to determine the index of tsunami risk, vulnerability, and capacity and the proposed concept of spatial planning reform in the city of Banda Aceh. The research uses explanatory methods with geographic information systems and literature studies. The formula for calculating the vulnerability index was derived from Perka BNPB No. 2 of 2012. The high level of land use changing into settlements in coastal areas since the rehabilitation and reconstruction period until now, accompanied by a higher level of vulnerability (v), tsunami hazard (h), and low capacity (c) to reduce vulnerability exposure, indicates that it is necessary to reform the spatial plan of Banda Aceh City for mainstreaming the resilience infrastructure. Through investing in resilience infrastructure, the city’s capacity will increase and reduce the risk (r), and finally, the protection of development and citizens can be realized.
Reduced finite-volume model for the fast numerical calculation of the fluid flow in the melt pool in laser beam welding
Authors: Wagner Jonas , Berger Peter , He Philipp , Fetzer Florian , Weber Rudolf , Graf Thomas
Published: December 2021

In this paper we propose a reduced two-dimensional finite-volume model for the fast calculation of the melt flow. This model was used to determine the influence of the welding speed, viscosity in the melt and vapour flow inside of the keyhole on the fluid flow field, the temperature distribution, and the resulting weld-pool geometry for laser beam welding of aluminium. The reduced computational time resulting from this approach allows the fast qualitative investigation of different aspects of the melt flow over a wide range of parameters. It was found that the effect of viscosity within the melt is more pronounced for lower welding speeds whereas the effect of friction at the keyhole walls is more pronounced for higher welding speeds. The weld-pool geometry mainly depends on the welding speed.
Surface roughness variance on different levels of surface inclination of powder bed fused tool steel 1.2709
Authors: Karlsson Jussi , Piiroinen Aki , Korpela Markus , Salminen Antti
Published: December 2021

Evolution of additive manufacturing has allowed increased flexibility and complexity of designs over conventional manufacturing e.g. formative and subtractive manufacturing. Restricting factor of laser powder bed fusion of metals (PBF-LB/M) additive manufacturing is the as-built surface quality. To promote an understanding of the surface roughness and suitable surface measuring technologies octagon shaped tool steel 1.2709 samples was developed and manufactured. Different surface measuring technologies was also literary reviewed. Studied samples were manufactured with commercially available laser-based powder bed fusion system using standard parameter set provided by the system manufacturer. Surface roughness was measured from top and down skins from multiple different building angles in a way that process specific effects, such as direction of movement of the powder re-coater, was considered. Based on these measuring results of the samples the effect surface inclination are discussed. The results show that building angle strongly affects to surface roughness of laser-based powder bed fused parts. Surface roughness was measured to be more than five times worse in unsupported angle manufactured down facing surfaces when compared with vertical walls.
Influence of laser hardening on laser induced periodic surface structures on steel substrates
Authors: Rathmann Lewin , Radel Tim
Published: December 2021

Laser-induced periodic surface structures (LIPSS) are used to structure surfaces for functionalization. Thus, hydrophilic states are generated using LIPSS. However, these nanostructures do not withstand mechanical loads and therefore cannot be used for most tribological applications. Within this work the approach of laser hardening of LIPSS is investigated. It is shown that laser hardening leads to an alteration of prior structured surfaces. That effects the wetting behaviour. The higher the laser power during hardening, the more increases the contact angle of a single droplet on the surface and the more the surface lacks in terms of wetting behaviour. This phenomenon is attributed to changes in LIPSS’ aspect ratio. A high ratio leads to low contact angles and is shifted to low values when the laser power increases resulting in high contact angles. Hence, it is concluded that the thermal load during laser hardening, and it’s influence on the wettability must be taken into account when LIPSS are subjected to laser hardening.
An Approach to Predict the Residual Stress-Depth-Profile of Thin Sheet Metal Processed by Laser Shock Peening Without Coating
Authors: Valentino Tobias , Stephen Andreas , Radel Tim
Published: December 2021

For conventional laser shock peening, the positive influence of compressive residual stresses on fatigue strength is well understood. To protect the material’s surface from ablation, a sacrificial layer is applied. This, however, leads to an additional process step, which deteriorates its economic efficiency. Thus, laser shock peening without coating (LPwC) is more frequently investigated for industrial applications. However, LPwC increases the thermal impact on the material, which may provoke tensile residual stresses in the surface region. In this regard, understanding the influence of LPwC on the residual stress state and deriving a suitable state, e.g., for subsequent applications or forming operations, result in a design of experiment with numerous residual stress measurements. Residual stress-depth-profiles obtained by X-ray diffraction are time-consuming and cost intensive. Hence, a model is proposed to predict the residual stress-depth-profile of LPwC-processed thin sheets. The analytical model is based on the source stress model and uses experimental results, namely hardness as well as shape change measurements. Sheets made of X5CrNi18-10 and with a thickness of 1 mm are LPwC-processed with a nanosecond fiber laser. In the thermally dominated area where tensile residual stresses are present, the model agrees well with the experimental measurements. Moreover, it is revealed that LPwC leads to a saturation of residual stress level maximum and depth in dependence of pulse energy, repetition rate and number of repetitions. Subsequently, the model is used for tailoring the stress profile of thin sheets by LPwC for subsequent bottom bending.
Architectural and aesthetic aspects of workspace at home – a new design challenge in the age of pandemic
Authors: Uherek-Bradecka Barbara
Published: December 2021

The article deals with the issues of spatial changes taking place in the office work environment during a pandemic. It also raises issues related to the space intended for work at home or in an apartment. At present, the traditional model of office work is undergoing significant transformations. These transformations include, in particular, the spatial aspect. Large office spaces, especially those of the open-plan type, do not work well during a pandemic, as it is difficult to keep an appropriate social distance in them. Therefore, we spend less and less working time, whether for safety reasons or the sanitary and epidemiological regime, for work in the office. This phenomenon is particularly visible in city centers, where many large office buildings have become deserted. We spend more and more time working remotely (home-office). Therefore, it is necessary to adapt the space of our houses and apartments to the conditions in which we live and work today. The very concept of remote work or work from home is not new, many companies have already introduced it before, but most often for a limited time, which in principle could take place without major changes in private apartments. However, the pandemic has forced office workers to work remotely full-time, and thus to organize a workplace in their own home. This is often associated with the need to introduce additional furniture, equipment or lighting to a private interior. The problem of many people working remotely is the lack of an additional room that can be used as a study or office. Then we are looking for a place for our home office in rooms that have so far performed other functions (most often a bedroom or a living room), trying to introduce a place to work with them as possible. The issue of acoustics is also of great importance here, especially when there are more people working or learning remotely in the house or apartment. Moreover, many, especially young office (corporate) employees, own one-room apartments in the studio type, in which it is not possible to separate such a room. Then we have to add an additional office space to the space that already serves several functions (living room and bedroom). The author is a researcher and designer of this type of space, and the cases presented in the article show the changes taking place in spaces previously perceived as typically private.
Indicative Assessment of Classroom Acoustics in Schools Built in Reinforced Concrete Technology on The Example of a School Building in Zabrze
Authors: Olechowska Marcelina , Nowoświat Artur , Marchacz Michał , Kupczyńska Karolina
Published: December 2021

In view of room acoustics in schools, not only noise level is extremely important, but also the reverberation conditions in a given room. Such conditions affect the intelligibility of speech, which determines the acquisition level of knowledge conveyed by the teacher. The article presents problems of school classroom acoustics for a building made in reinforced concrete technology on the example of a school building in Zabrze. For the research, we selected one of schools established in 1970s as a memorial of the Millennium Jubilee of the Republic of Poland. The obtained results of the reverberation time indicate poor acoustic conditions, which, regrettably, is quite common in Polish schools. For low frequencies, the reverberation time of a classroom for teaching mathematics was over 2 seconds, and for medium frequencies it was almost 2 seconds. The article presents the acoustics of the studied classrooms without proposals of acoustic adaptation.
Historical River Training Works on the Lower Elbe
Authors: Fošumpaur Pavel , Horský Martin , Kašpar Tomáš
Published: December 2021

The paper deals with river training works built on the reach of the Elbe River between the city of Ústí nad Labem (CZ) and the Czech/German border. Downstream of the Ústí nad Labem, the Elbe in the Czech Republic and in Germany has only been made navigable through river training measures without building weirs. The goal of river training for watercourse navigability is to attain the required waterway parameters through fairway adjustments. This is primarily achieved through channel dredging and the construction of training dams to concentrate the water flow into a narrower but deeper main channel. The paper describes the historical development of river training works during the period from the Middle Ages to the present day. Initially, such works were not meant as part of a unified conceptually designed system of measures. Instead, they were local initiatives aimed to remove natural obstacles from the river bed and to build facilities and structures to aid navigation. Systematic regulation works along the Czech and German sections of the Elbe only started in the early 19th century. The research was focused on studying the original project documents and documentation of the actual design of the training dams since 1894. This historical design documentation was digitised and projected into the maps in the Czech JTSK local coordinate system through the use of advanced geographic information system (GIS) methods. The final atlas of river training works on the Elbe-Vltava Waterway (EVW) along the lower Elbe in the Czech Republic is the first of its kind, utilising geographic information systems to document the locations of technical structures built since the early 19th century in the Elbe River bed in order to make the river navigable and maintain its navigability. The collection of maps also documents the development of the river training works in time based on map data obtained from digitised design documentation from the 19th and 20th centuries, historical aerial photographs dated 1930–1946 and 1950–1964, and present-day maps and orthophotomaps of the Elbe section in question. The atlas of the Elbe-Vltava Waterway river training works is publicly available via a web-based application. The maps are a result of original research and offer a synthesis of interactions between the existing technical structures, the sediment regime of the Elbe and sites that are subject to environmental protection. The research was conducted as part of project no. DG18P02OVV004 entitled “Documentation and presentation of technical cultural heritage along the Elbe-Vltava Waterway” within a support programme for applied research and experimental development of national and cultural identity, funded by the Ministry of Culture of the Czech Republic.
Skewing of crane during acceleration
Authors: Musílek Josef
Published: December 2021

During the work of crane and during its driving on the crane track, the so-called skewing of the crane arises. The physical phenomenon of crane skewing has been interpreted in various ways in the past. This corresponded to various physical models of skewing, which were created by various authors and which were presented in the standards for the design of crane structures and tracks. Current standards define the skewing as the so-called oblique running of the crane along the track with uniform movement. This is a situation where the force on the front guide means returns the obliqued crane when driving to the straight position. Theoretical formulas for the calculation of forces caused by skewing during oblique running crane were determined by Hannover. These relationships apply to movement of the crane with constant velocity along the crane track. The author of the article derived a model of a crane, which allows to investigate the movement of the crane along the crane track in general, it means both during uniform movement and during its acceleration or deceleration. It is a dynamic model that allows the solution of equations of motion to solve the coordinates corresponding to the degree of freedom and, among other things, to determine the forces between the crane and the crane track. This article presents the results obtained from this model for a specific selected crane during its acceleration. The contact of the front guide wheel is assumed, which is in accordance with the model derived by Hannover and which is also stated in the currently valid standards.
Industrial Zone Development by Warehouse and Production Hall Constructions
Authors: Kalisa Eric , Korytárová Jana
Published: December 2021

The article focuses on the analysis of the development and use of industrial zones, which represent areas for the concentrated location of manufacturing sites specialised in a particular industry, strategic services, or technology centres. Both services and industry have an impact as the top engines of Gross Domestic Product and the labour force employment both in the Czech Republic and European Union. The area and the predominant category of economic activities are important parameters of each industrial zone. They place demands on the employees, transport, technical equipment, landscape, and settlement within the impact on the territory. The main goal of the research was the analysis of the industrial zone as a territory where warehouse and production hall projects are implemented. The analysis of warehouse and production hall construction investment was performed in Žďár nad Sázavou. The study of this project presents the project impact on the industrial area and the deviation between the project plan and the audited reality. The research sample consisted of 12 selected warehouse and production hall projects located in Central and Eastern Europe in various phases of their life cycle - the planning, implementation or operational phases. One of the partial outputs of the article is a SWOT analysis which deals with variables that affect project effectiveness both from the perspective of the investor and the public in the area where they are located. Implementation and operation of such projects significantly affect public life, so their potential socio-economic impact on the economic cash flow creation was examined.
Characterization of the dry stone heritage of the Barrocal region (Algarve, Portugal)
Authors: Balsells Cèlia Mallafrè , Gonçalves Marta Marçal , Jover Agustí Costa , Pla Sergio Coll
Published: December 2021

The paper aims to value the diverse and important dry stone heritage located in the Barrocal area (Algarve, Portugal). The dry stone construction technique and the set of constructions that derive from its application are present in all parts of the world where stone is present. Throughout the Iberian Peninsula and specifically in the territory of Portugal, there are different dry stone constructions that make up the rural landscape. They are an example of the work in the field and the use of local natural resources during different generations. The recognition by UNESCO as Intangible Cultural Heritage of Humanity (2018) highlights the importance of maintaining a construction technique that, transmitted orally, is materialized in different constructions according to the constructive heritage and the stone typology of the nearby environment. The study focuses on a specific partially cultivated area of the Barrocal where different types of construction of dry stone elements exist. Starting from the contextualization of the studies carried out throughout Portugal, the predominant dry stone constructions of the Barrocal, the area with the greatest presence of a variety of types of the Algarve, are being identified, recorded and analysed. The work provides a classification of the present constructions in the area linked to their use and provides data on the construction characteristics and the typology of the stone. The knowledge of these constructions makes it possible to explain the economic and social context of a certain period and to plan reactivation measures for other economic sectors not linked to tourism. The Algarve, one of the most touristic areas of Portugal, has focused most of its economy on beach tourism, leaving the cultural and dry stone architectural heritage almost unnoticed.The constructions and the dry stone construction technique are a way of preserving the rural landscape and the cultural memory so that the benefits related to ecology and biodiversity are observed through this document.
Ecological Aspects of the Detached House Construction
Authors: Kocourkova Gabriela , Vankova Lucie , Krejza Zdenek
Published: December 2021

The article deals with the ecological impacts during a detached house construction and looks for the optimal way of its financing. The aim of the article is to evaluate how much the house construction costs would increase in the case of the use of materials, which production generates smaller volume of negative emissions. The issue of the environment in relation to ecological construction has been widely discussed in recent years. The construction industry burdens the environment already by the production of building materials, extraction of raw materials, energy consumption, through designing activities and construction itself, to the phase of the building use and its eventual liquidation. There are six basic requirements for building materials used in construction, which are required for the quality environmentally friendly construction: the statics and stability of buildings must be provided, noise protection, fire safety, hygienic safety and reduced environmental impact must be met, buildings must provide safe use and well-being, and last but not least energy efficiency. Already in the structure construction phase, it is necessary to consider the appropriate selection of building materials, for which it is necessary to take into account ecological criteria. Appropriate selection of building materials results in a positive effect on the environment. When optimizing the total cost of building a detached house from an ecological point of view, the procedure consists in replacing the most cost-effective items in the construction budget by alternative materials with regard to ecology. When choosing alternative materials, maintaining the standard of the brick building and the aesthetic character of the house are taken into account. When comparing the budgets of both variants, it was found out that a detached house built using alternative, more environmentally friendly materials, resulted more expensive. However, the price difference is slight. Own housing can be financed in several ways. One option is to use your resources. However, this method is currently unrealistic for most people, and therefore they often choose the option of combining their resources with external sources. The most commonly used products for housing financing are building savings loans and mortgage loans. Another possibility is to use subsidy programmes for housing to finance the house, which are often focused on supporting ecological construction and housing.
Enhance the Public Space: An Ecomuseum for Monterosso Almo (RG) in Sicily
Authors: Cantone Fernanda
Published: December 2021

The city has become the place of sustainability and public space is one of the main elements of this concept: it does not consume land, it recovers the existing building assets, it works with requalification, re-design, accessibility and availability. In this sense, public space takes on an ecological and environmental connotation, supported by a growing respect for nature. Nowadays, in historical small towns, all works addressing the public space acknowledge an overlapping of traces and testimonies that identify those space as assets to be protected, but also made available to the public. In this regard, it is also necessary to protect the buildings that define this space. A tool is enhancement. Enhancement means taking actions aimed at giving value. Its objectives focus by integrating the architectural heritage into contemporary life, by strengthening social development, as well as the economy, and defining its roots and identity. Today, enhancement connects the past with the future and provides an occasion to highlight the tangible and intangible resources safeguarded by such heritage. For ordinary heritage the only possible strategy is represented by eco-museums, through a systemic approach towards all tangible and intangible elements. The case study is a very small town in the country of Ragusa, Sicily, Italy, is considered a “cultural, natural and architectonical landscape” and reflects the combined works of nature and humankind, where cultural heritage is located both in rural areas, both in center of town. The city has an interesting old town consisting in two important historical area: Matrice district and San Giovanni district. In them there are small palaces built almost all after the earthquake of 1693, beautiful churches even older, beautiful woods and views that design public space. This research is aimed at retrieving the present architecture and landscape by using the existing structures to leave an indelible mark on renovation projects. The enhancement project guides the birth of the eco-museum; it identifies, selects and recovers the existing building assets, proposing attractive and economically interesting functions for public space. An action based on eco-museums helps breathing new life into a community and its heritage, promoting life, economy and tourism.
Climate-Friendly Cities – Blue-Green Infrastructure Activities
Authors: Pancewicz Alina
Published: December 2021

Increasing climate change affects many aspects of cities and their inhabitants. Extreme weather phenomena destroy urban areas, infrastructure and green spaces. Activities taken to improve the resilience of cities and their adaptation to climate change aim to reduce or avoid negative consequences, or to increase the benefits of risks. They are different in character and take different forms, depending on the level of economic and social development, financial, institutional, human, and knowledge resources. The planning and urban development tools and instruments used are also important. An integral part of adaptation activities is the development of modern systems of blue-green urban infrastructure. The experience of the last few years has shown the diversity of applied projects based on natural solutions. They are reflected both in the provisions of climate strategies and in the realizations visible in the urban landscape. The paper focuses on planning and implementation activities that strengthen resilience to climate change, highlight the importance of ecosystem services and shape urban space. The research focuses on polish cities that have undertaken the development of Urban Adaptation Plans (MPA). The aim of this paper is to present the blue-green infrastructure activities included in the MPA, the possibilities for their implementation and to show their role in improving the quality of life in cities, increasing the attractiveness of urban spaces and raising the awareness and involvement of local communities.
Protection Perimeter of a New Mineral Water in an Essentially Urban Environment: The Case of the São Tiago Medical Spa (Portugal)
Authors: Ferreira Gomes Luis M.
Published: December 2021

São Tiago medical spa is an integrated structure in a new Health Tourism Complex, in Penamacor, Portugal, with a recent start of operation, due to the classification of a new natural mineral water in place. That medical spa bases its exploration on the natural mineral water obtained from the Well P1. Thus, to facilitate the preservation of the quality of the resource, natural mineral water, one of the fundamental instruments is the implementation of a Protection Perimeter of Well P1 and its associated aquifer system. In this sense, in this paper, after briefly presenting the basic geoenvironmental aspects that are the base for the elaboration of the Protection Perimeter, the methodology of its elaboration is explained, with the final solution, which constitutes a territory organized by three zones: Immediate Protection Zone, Intermediate Protection Zone and Extended Protection Zone. The official restrictions legally foreseen for those zones are mentioned and the official systematization of the current occupation of the territory is presented, in terms of the Municipal Master Plan (PDM), while emphasizing the potential sources of existing pollution. Finally, some comments are made about the future orientation regarding the occupation of the territory in the interior zones of the Protection Perimeter, so that the new Health Tourism complex, consisting of a medical spa, hotel, and aqualudic spaces, endures in the time, and helps the sustained economic growth of the region.
Question of Authenticity of Steel Sheet Roof Cover on Traditional Housing Units in Urban Environment
Authors: Šabić Lejla
Published: December 2021

Elaborating on the theory of analytical philosophy and conservation doctrine, and a case study of a selected sample, the paper discusses the authenticity of the secondary roof cover of steel sheets on traditional Bosnian houses built for housing or economic purposes. Although such steel sheet replica of a shingle or šimla wooden cover is registered and defined as authentic in rural areas, its authenticity in urban traditional areas, where it can also be found, although not as often, has not been doctrinally examined. Comparative analysis of results of theoretical base and statistical data obtained from the selected sample determines the context where it is possible and recommendable to treat the steel sheet roof cover as authentic when carrying out restoration and reconstruction.
Historic Building Simulation of the Internal Insulation Behavior in Climate of Slovakia in a Case Study
Authors: Hutkai Kristián , Katunský Dušan , Zozulák Marek , Guman Matej
Published: December 2021

Main topic of the article speaks about historic building renovation in Košice. Nowadays, the building is in use as puppet theatre. The theatre suffers from various disorders caused by humidity. The envelope of building has been renovated several times, however, over time, the faults return over and over. The article can be divided into two parts. The first one presents the results of moisture analysis of the support wall. The samples from the facade probes were evaluated by gravimetric method. The second part of the article discusses the interior insulation of a historic building. Internal insulation is one of the solutions to reduce heat loss of historic buildings. The use of this type of insulation brings risks that affect the thermal-humidity behaviour of the perimeter structure. These risks are assessed using a simulation model. In addition to the risks, the impact of the insulation on the original wall structure and the impact on the indoor environment were also assessed. Based on the simulation results, we can assess whether the restoration approach is appropriate in this specific case of using insulation. The study shows that the initial humidity of the perimeter wall structure is an important factor for internal insulation. Before applying the internal insulation, it is necessary to examine the moisture and material properties of the masonry.
Parameters of Sand-Tyre Chips Mixture for Hardening Soil Small Constitutive Model
Authors: Kowalska Magdalena
Published: December 2021

Hardening Soil model with the small strain extension (HSS) is lately one of the most popular constitutive models to describe soil behaviour. It is versatile – includes the phenomena of shear strength, stress history, dilatancy, volumetric and shear hardening, hyperbolic stress-strain relationship in axial compression, stiffness dependency on stress and its degradation with strain, as well as the regain of the high stiffness after sharp loading reversals. Even though the model is advanced and complex, accordingly to its authors, it is relatively easy to calibrate based on results of standard tests and empirical formulas. In this paper an attempt was undertaken to estimate the parameters of untypical anthropogenic soils – mixtures of sand and scrap tyre rubber in order to build a database for future numerical analyses. A literature review was conducted and, eventually, the material parameters were determined based on results of a series of laboratory tests (cyclic and monotonic triaxial with bender elements, direct shear) published by researchers of Wollongong University of Australia.
Constructions of buildings based on solid wooden elements
Authors: Švajlenka Jozef , Kozlovská Mária
Published: December 2021

Wood has excellent physical, technological, aesthetic and utility properties. Thanks to them, wooden buildings are very popular and allow to build economically advantageous and modern wooden buildings with long life and durability and thus a positive impact on the ecological and so-called. clean future. Knowledge of its basic properties is the first prerequisite for its proper use in various industries and in human life. In the world, but also in our country, the trend of wooden buildings is becoming more and more widespread, not only in the understanding of cottages, wooden houses and family houses using wooden elements. Massive prefabricated log buildings are a typical representative of wood-based buildings. Massive log buildings have undergone some development and currently in construction practice, this system for the construction of wooden buildings in various more modern modifications. The aim of this paper is to present selected aspects of traditional but also blue log constructions and their application at present.
Construction Waste Production in Macroeconomic Context
Authors: Marek Martin , Korytárová Jana
Published: December 2021

This article aims at presenting the economic impacts of implementing the basic principles of construction demolition waste management in terms of saving construction costs. Emphasis is placed on fulfilling the 3R principle, i.e. reducing waste, reusing it, and recycling resources and products. Construction and demolition waste represents the largest mass waste flow in the EU, e.g. in 2018, it represented 36% of the total waste production in the whole EU- 27. The European Union is gradually introducing measures to reduce the production of construction waste compared to the Czech Republic, where the share of construction demolition waste on the total production was up to 42% in 2018. This value exceeds the EU-27 average. The article analyses available statistical data from the national CZSO and the European statistical office EUROSTAT on the waste production classified according to EWC-STAT, which is a classification of waste according to Directive No. 2150/2002. Items monitoring the waste produced by the construction industry are listed on the 41st to 43rd place of the EWC-STAT list of all monitored waste. The data obtained allows comparing three branches of construction production, the 41st Building construction, 42nd Civil engineering, and 43rd Specialized construction activities. Another possibility to obtain data is to use a division according to the waste producer economic activity (CZ NACE). The data obtained in this way is compared with the performance indicators of the national economy. By comparing the size of the construction demolition waste production with the performance of the national economy (especially the GDP indicator), the degree of their interdependence was determined. The aim of the analysis is to assess the relation between the country’s economic performance and the production of construction and demolition waste. The next step was to perform an analysis from the point of view of the 3R principle in order to examine the impact of measures to reduce the construction demolition waste production in connection with the already initiated processes of its possible recycling or reuse.
Architectural Valorization: Lighting Design Solution for the Bell Tower of “San Pasquale a Chiaia” Church
Authors: Iuliano Giuseppina , Spanodimitriou Yorgos , Ciampi Giovanni , Scorpio Michelangelo , Sibilio Sergio
Published: December 2021

Christian churches and their bell towers represent a big part of the historical architectural heritage in Italy, and they had a major role in the development of the urban and social fabric of the Italian cities. This study is focused on the design of a lighting renovation for the bell tower of “San Pasquale a Chiaia” (Napoli, south of Italy). The lighting refurbishment is designed with the aim of: (i) emphasizing the architecture of the bell tower façades and (ii) providing a figurative and emotional role to the whole building. Several lighting scenarios have been implemented in order to compare the different luminaire types and arrangements on the basis of the effectiveness in valorizing the architectural characteristics of the bell tower, as well as the energy performances of the different design solutions. Finally, the best case has been further implemented in order to take into account the different needs of the historical building as well as the enhancement of the surrounding urban spaces.
Mobility as a crucial factor of spatial development in Function urban areas - Case study of Kosice region
Authors: Eliaš Ladislav , Ondrejička Vladimír , Ondrejičková Silvia , Nič Milan
Published: December 2021

The majority of the population of Slovakia - 53.35% live in 141 cities, with a density of 398.27 inhabitants/km2 which, however, occupy an area of only 14.9% of the total territory of the republic. In 2749 villages occupying 85.1% of its territory, 46.65% of the population lives at a density of 60.98 inhabitants/km2. In the last century, there was a significant migration of the village population in Slovakia to work in the cities. In the Slovak Republic, there are 325.8 dwellings per 1000 inhabitants, this indicator in the original states of the European Union ranges from 390 to 500 dwellings per 1000 inhabitants. The current shortage of flats in Slovakia has also become a political agenda; the current government has to build 25,000 flats a year in the program. The biggest obstacle to the housing construction program is the lack of suitable building plots. It is not possible to find enough plots only in the territory of cities, it will be necessary to organically involve municipalities in the vicinity – I functional urban areas of economically prosperous cities/regional centres in the preparation of suitable building plots and related infrastructure. The development of municipalities so far, as well as the preparation of building plots for housing construction, which relies on the "market will solve it" model, has not proved successful. Developers in the pursuit of financial profit have focused on the production of as many apartments as possible in the vicinity of economically prosperous cities without building the necessary infrastructure. Thus, new "Satellite Cities" were created, with a deficient transport connection to the dominant city. Based on the research made, we concluded that living in a village for workers working in the city requires quick transport between home and work. So effective mobility is a priority but also a necessary condition for young families to decide where to live. Article summarizing research dealing with the challenge mentioned above and offers a case study from Slovakia especially from FUA of regional centre Košice. Case study including the proposal for the mobility model for specific villages in FUA of Košice.
Definition of Socio-Economic Impacts of Large-Scale Development Projects within Urban Development
Authors: Pelčák Svatopluk , Korytárová Jana
Published: December 2021

The article focuses on the socio-economic impacts of large-scale urban development projects in cities. Both in Czech cities and large cities around the world, there is increasing pressure on converting previously unused areas (“greenfields”) as well as the areas that no longer serve their original purpose and are inefficiently used (“brownfields”) to new use purposes. As a result, public administration representatives face a difficult decision on how to change the use of these areas to be consistent with the current zoning plan. The resulting decision has to be explained to the public in such a way that they feel they meet the public needs and interests. Decision-makers need valid and accurate inputs to make the right decisions. Therefore, it is necessary to clearly define and describe the procedure for assessing the benefits of these important revitalization or regeneration projects for various segments of the public. Only a small part of the urban development project impacts is of a purely financial character. Therefore, the evaluation process uses modelling of socio-economic impacts, which are evaluated financially, so that the decision-makers are able to compare the most valid impacts to the initial investment costs necessary for converting the territory into the area with new functional use. The research sample consists of important urban development projects in the largest cities in the Czech Republic. Most of these projects consist have a territorial study, which was established as the main source of relevant information for the analyses. The outputs of the research described in the article build on the previous research of the authors, where they defined 3 basic variables - Incremental capacity of jobs, Incremental capacity of the population and Incremental capacity of visitors as the carriers of following project socio-economic impacts on the territory. The research article presents a list of socio-economic impacts defined on the basis of incremental capacities.
A Participatory Approach on Saving Vernacular Timber Heritage: A Case Study on Relocating a Wooden Church in Romania
Authors: Isopescu Bogdan , Blidariu Cristian , Stoian Valeriu
Published: December 2021

This paper presents a case study on participatory and collaborative traditional design-build architecture in Romania. The focus is set on dismantling, relocating, rebuilding and reusing a 19th century wooden church with the efforts of the adopting community. In Romania, wood is used as a traditional building material, largely for roof framing elements in urban areas and in most mountainous rural areas for the construction of houses and churches. Due to an ongoing demographic rural-urban migration and emigration many villages have, and are being depopulated, subsequently abandoned and many such structures left behind. Under these circumstances, the possibility of dismantling, relocating and reusing these types of structures has become economically viable in comparison to new-built structures. The design for disassembly, inherent to vernacular timber architecture and how the deconstruction and reuse of timber elements maintain their value through efficient reuse makes it a suitable work frame for a participatory based approach involving communities with basic construction skill levels. Thus strengthening communities, maintaining and developing local identity through heritage and crafts. This type of action shows an increasing potential for saving timber vernacular structures by activating local communities and responding to their needs, in a time where the concern for natural resource management and re-cycling or up-cycling is becoming ever more important. The aim of the project is to increase awareness regarding timber built heritage by formulating a successful example of a participatory design- build project. A desired goal is to shift the architectural discourse by coalescing it with wider views of democracy and alternative visions of a sustainable future.
Relocation of Dredged Material from Marano and Grado Lagoon: An Example of Sustainable Management
Authors: Petti Marco , Pascolo Sara , Bosa Silvia
Published: December 2021

The high degree of dynamism of coastal and lagoon morphodynamic processes often implies the need for dredging operations to maintain the navigability of the main waterways towards harbours or sites which have important tourist or economical value. In particular, within sheltered and shallow lagoons this phenomenon is continuous and involves large volumes of material that requires to be properly managed. The dredged materials can provide sediments for environmental enhancement and they can be used, as an example, to create or improve habitats, mudflats and salt marshes. Numerical model can be a valuable tool to investigate the morphological evolution of the disposals, especially in the medium term, with the aim of verifying the sediment stability and the bed level changes. The present paper shows an example of sustainable management of cohesive materials dredged from two channels of the Marano and Grado lagoon. The non-linear interactions between tidal currents and locally generated wind waves are reproduced by means of a coupled spectral-hydrodynamic model associated with a transport equation to compute sediment load concentration. The comparison of the results confirms the validity of the adopted procedure.