bluuebunny/crossref_metadata_2025_split huggingface dataset:
The fourth generation of urban projects to tackle climate change: a typological proposal
Authors: Perez-Lancellotti Gino , Ziede Marcela 
Published: December 2021

Abstract
Climate change is the major challenge of our humanity and the relationship between climate change and cities has received increasing scholarly attention from governance, urban planning and infrastructure perspectives. However, the scale of the urban project, understood as the operationalization of climate change actions, has been neglected. The current three generations of urban projects are revisited (modern city, morphologic articulation, large urban projects) and a fourth-generation within the context of climate change is identified as missing; it combines adaptation and mitigation strategies for urban projects. While adaptation strategies are oriented to minimizing the negative impact of climate change on rising sea-levels, floods and rivers’ changes through green and blue infrastructures, mitigation strategies are twofold: one oriented to minimizing CO2 gas emissions and the other to reducing the risks of deterioration of natural systems due to human intervention or natural causes. Integrating the four generations, a typology of a 2x2 matrix of urban projects is drawn up. The four quadrants of types of urban projects are explained and accompanied by examples. Potential and desirable shifts between the quadrants are discussed to understand how changes are needed to advance to develop this new generation of urban projects. The paper contributes to expanding our understanding of urban projects in the context of climate change with heuristics purposes for researchers, practitioners and academia, and to prepare public policy makers to encourage the debate of climate change actions of adaptation and mitigation that should be materialized on an urban project scale. Future research may empirically test the typology in different contexts of development.
The comparison of vehicle headlamps
Authors: Motl Jakub , Bradáč Albert , Suchomel Filip , Bucsuházy Kateřina 
Published: December 2021

Abstract
The aim of this article is the comparison of vehicle headlamps in terms of pedestrians' visibility at nighttime conditions. The study was designed to gain results, which could serve as a basis for the pedestrian-vehicle accident analysis in terms of visibility during night drive. For this study were used comparable vehicles (same vehicle type and model year) with different headlamps type. Three different headlamps (halogen, xenon and LED headlamps) were used for the analysis. Experiments were carried out under similar conditions (straight road, nighttime, no disturbing factors). During a series of static tests, the vehicle approached at predefined distances to the figurant - pedestrian standing on the right side of the roadway. For the luminance analysis were used Luminance Distribution Analyser LumiDISP - software for analysing the luminance conditions based on evaluation of image data from digital photos.
Harmonization of Natural and Urban Structures in The Danube Region
Authors: Vitková Ľubica , Lemak Olena 
Published: December 2021

Abstract
The deteriorating state of the environment over the last half century has resulted in the current climate and environmental crisis, which is conditioned by the unbearable exploitation of the natural environment. One of the activities that plays a key role in this situation is urbanization with a constant occupation of the landscape, increasing emissions from traffic and buildings. A well-thought-out and consistent strategy for the harmonization of natural and urban structures can mitigate the negative climate impacts in the residential environment. The harmony of natural and artificial elements has a positive impact not only on the environmental but also the aesthetic quality of the urban environment. It can significantly help to strengthen the character of the cities. It was the landscape that significantly influenced their location and characteristic image. The research focuses on the evaluation of the quality of the urban environment with emphasis on the interaction of urban and landscape structures. The presented research is aimed to the connection of the city with the river and the surrounding landscape. It analyses and evaluates the impact of characteristic natural elements on the formation of urban structures during their development to the present day. It traces significant "traces" of the landscape in the urban structure of selected cities and their evolution. The research is focused to significant Slovak settlement on the Danube.
Properties of Sealed Joints After Exposure to Water
Authors: Boháček Adam 
Published: December 2021

Abstract
In practice, sealed joints in the construction industry are very often exposed to adverse climatic influences. One of these climatic influences is the effect of water, for example in the form of rain or humidity. This article is therefore devoted to the sealing of joints of problematic base materials, which are then exposed to the effects of water and subsequently tested according to the recommended test standards. For this research, a problematic substrate based on cement is selected, and glass cement is specifically chosen for its shortcomings. The main disadvantage of this material is the existence of small particles on its surface, which due to their insufficient wettability disrupt the adhesion of both the primer and subsequently the sealant to this substrate and thus significantly reduce the quality of the sealed joint. Furthermore, representatives of several types of sealants and primers recommended for them available on the Czech market are selected for this experiment. Test specimens are made using glass cement plates treated with the appropriate primer and the sealant. These test specimens are then the goal of a test procedure to verify the properties of the sealed joint of the problematic material and the selected primer and sealant that is exposed to the water element. The results of these tests are then presented in the article.
Relation of the Green Structure and the Appropriation of Public Spaces in Large-Scale Residential Areas
Authors: Kusmane Agnese Sofija , Nitavska Natalija 
Published: December 2021

Abstract
More than a half of residents in some capital cities of the former Socialist block live in large-scale residential areas that had been built from the 1950s to the 1980s. The public space satisfaction in the areas is low, the residents rarely appropriate the yards and streets of the housing complexes. The aim of the paper is to provide a framework for the understanding of residents’ assessment of public space and its relation to the appropriation; the framework can be used for the development of building or landscape architecture projects focused at reconstruction of the public space. Public Space Quality Model is generated in the paper. The model includes three spatial categories that are defined by metrical values, configuration components and dominant spatial elements – elements that determine size, category, and the structure of a space. Using the observation method in the residential areas of the former East Berlin, the research concludes that the model demonstrates the highest precision of predictability of the appropriation intensity of the public space when the green structure is used as the dominant spatial element. A method accompanying the model is presented in the paper that permits to use specific types of trees or shrubs in particular distancing and concrete arrangements to create spaces of high, medium, or low appropriation level in large-scale residential areas.
Effect of Assumed Boundary Conditions in Numerical Model of Road Pavement-Mining Subsoil System on Criterial Values Used in Design Using Mechanistic Methods
Authors: Parkasiewicz Beata , Kadela Marta 
Published: December 2021

Abstract
Underground mining brings benefits in the form of the extracted mineral. The negative effects of mining exploration are deformations of the rock mass, which also cause deformations on the ground surface. There are continuous deformations, discontinuous deformations and mining-induced tremors. Recommendations regarding the protection of the structure of cubature building against the negative effect of mining operations are discussed in detail, for example, in the recommendation published by the Building Research Institute (ITB) in Warsaw. In the case of road structures, the situation is different. Firstly, there are no general rules that would provide clear guidelines for the procedure for designing road pavement in mining areas, similarly to cubature buildings. Secondly, in the computer programs used for the individual design of road pavement, it is not possible to assign additional actions, including mining impact. Therefore, in order to analyze the behavior of the pavement-mining subsoil system, an advanced numerical analyze should be carried out. In this case, the subsoil thickness, the boundary conditions and the constitutive relationships of the materials of the road pavement layers and subsoil should be determined. This paper presents an attempt to select kinematic boundary conditions for the FEM model of the road pavement-mining subsoil system, analogically to the model of the building-mining subsoil system. The paper is aimed at assessment of the influence of kinematic boundary conditions selection on the criterial values that are taken into account during the design process of road pavement using mechanistic methods. For this purpose, three cases were considered: (i) horizontal mining strain (εdesign
), (ii) curvature of surface (Kdesign
), (iii) combined impact of these actions. In these cases, each time vehicle wheel load was assumed. Based on the analyzes, the computational horizontal strain of the mining area εcomp
is decisive when assessing the criterial values taken into account in the design process of road pavement structures.
A Study on the Adhesion in the Interfacial Transition Zone Between Glass Fibre Reinforced Rebar and the Cement Matrix
Authors: Yakovlev Grigory , Saidova Zarina , Drochytka Rostislav , Gordina Anastasiya , Pudov Igor , Kuzmina Natalia , Begunova Ekaterina , Elrefai Ali Elsaed Mohamed Mohamed 
Published: December 2021

Abstract
This study is aimed at increasing the adhesion of the fibre-reinforced polymer rods to the binder in the cement-based composites in order to eliminate the problem of rod slippage under loading and broaden the application of composite reinforcement in the construction industry. It is assumed that the better adhesion of reinforcement rod to the cement matrix can be provided by increasing the cement stone structural density, and, in particular, by compacting the structure of the hydration products formed on the surface the fibre-reinforced polymer reinforcement rod. Such increase in strength and density can be achieved by adding nanodispersed additives such as metakaolin, the dispersion of carbon black and Peneco Nano Stachema primer into the composition of the cement matrix. Additional adhesion of the cement matrix to the reinforcement is ensured by coating it with the primer, which seals the structure of the cement matrix located in the interfacial transition zone between the reinforcing bar and the cement stone. Experimental study proved that the proposed approach allows the formation of a strong and dense structure in the interfacial transition zone between the cement matrix and the fibre-reinforced polymer reinforcement rod surface. The introduction of metakaolin and a dispersion of technical soot led to an increase in the adhesion strength of fibre-reinforced polymer rod with a cement matrix by 27% and 29%, respectively. The IR spectral analysis and DTA analysis results showed that the mineralogy and morphology of the hydration products was changed due to the addition of the modifying additives, thus improving the adhesion characteristics and corrosion resistance of fibre- reinforced polymer in the cement-based composites.
Environmental Protection Against Noise and Vibration
Authors: Kowalska-Koczwara Alicja , Pachla Filip , Nering Krzysztof 
Published: December 2021

Abstract
Noise in large cities reaching the interior of buildings by air or in the form of material noise caused by vibrations propagating through the ground to the building not only cause discomfort but also pollution according to legal regulations in the field of environmental protection. The main legal acts in Poland relating to environmental protection are the Environmental Protection Law of 2001, as amended. Under the concept of emissions in this act, the introduction of substances or energy into the environment, such as heat, noise, vibrations or magnetic fields. Pollution, is understood as an emission that may be harmful to human health or the state of the environment, may cause damage to material goods, may deteriorate the aesthetic value of the environment or may conflict with other, justified ways of using the environment. According to a 2008 Directive of the European Parliament and Council, pollution is direct or indirect introduction of substances as a result of human activity, vibration, heat or noise to air, environment water or soil that may endanger human health or environmental quality, or manifest itself in the form of damage to tangible property, diminution of value or collision with other legitimate uses of the environment. The above two legal acts already show that both noise and vibrations should always be taken into account in the environmental impact assessment. The paper also analyzes other acts of law relating to environmental protection, taking into account noise and vibrations. Moreover, possible solutions that can reduce pollution such as noise and vibrations are clearly described.
Building Information Modelling Usage in Federal Hydropower Design and Construction Management
Authors: West Jacob , Liu Junshan 
Published: December 2021

Abstract
The use of Building Information Modeling (BIM) is widespread within the engineering and construction industry, with huge strides in both usage and technological advances in the past two decades. The benefits of design collaboration, communication, visualization, and risk mitigation are untold. The U.S. Army Corps of Engineers foresaw the benefits of BIM and began to write policy for its mandatory use across the enterprise in the early 2000s. As BIM technology evolved, the U.S. Army Corps of Engineers has struggled to keep pace with the speed of industry but continue to make improvements to policy and more widespread usage across the enterprise. The MILCON program sees widespread use in the planning and design phases using BIM for visualization, communication, creation of 2D construction drawings, and rough estimating. BIM usage stops short in two major areas of the U.S. Army Corps of Engineers work: hydropower rehabilitation and construction management. Professionals from the U.S. Army Corps of Engineers in design management, hydropower engineering, and construction management all agreed that BIM, utilized and implemented properly, can have a very strong impact in each major field that would improve efficiencies, aid stakeholders in better understanding of complicated design concepts, and realize a more streamlined construction management process for complicated hydropower work. Through literature review and interviews with construction professionals, this research studied how BIM is being used within the U.S. Army Corps of Engineers, specifically within hydropower rehabilitation programs, for design and construction management. This research also focused on how private industry has been and is currently using BIM in construction management, and to correlate how processes used in private industry may be used on hydropower generation unit rehabilitation projects at USACE-owned facilities.
Formulation of Performance Levels and Relevant Limitations for Clay Brick Masonry Infills in Seismic Analysis of R/C Frame Structures
Authors: Costoli Iacopo , Sorace Stefano , Terenzi Gloria 
Published: December 2021

Abstract
Observation of damage caused by recent earthquakes highlights, once again, that the presence of infills significantly affects the seismic response of reinforced concrete (R.C.) frame buildings. Therefore, in spite of the fact that infills are non-structural elements, and thus they are normally not considered in structural analyses, in many cases their contribution should not be neglected. Based on these observations, the study proposed in this paper consists in the evaluation of the seismic response of infills in time-history finite element analyses of R.C. frame structures by means of a two-element model, constituted by two diagonal nonlinear beams. A “concrete”-type hysteretic model predicts the in-plane state of infills, through a force-displacement backbone curve expressly generated, and scanned in terms of performance limits, to this aim. This model is demonstratively applied to a real case study, i.e. a R.C. frame building including various types of brick masonry perimeter infills and internal partitions, damaged by the 30 October 2016 Central Italy earthquake. The time-histories seismic analyses carried out on it allows checking the influence of infills on the response of the structure, as well the effectiveness of the proposed model in reproducing the observed real damage on the masonry panels.
New Generation of Clay Plasters Stabilized by Polymers
Authors: Zušťák Zbyněk , Procházka Michal , Svoboda Pavel 
Published: December 2021

Abstract
This article is dedicated to the use of unburnt clay, specifically as a material to produce clay plaster and they stabilization via polymers. The main goal is to enhance the attributes of a clay plaster through the stabilization of various polymers, alternatively by combining the polymer with hydrophobization in different ratios. Stabilization is particularly important for exterior plasters, as they are the most exposed to water. To compare the characteristics, the mixtures were tested for water resistance, water vapor permeability, flexural tensive strength and compressive strength.
Investigation of Bearing Capacity of the Drill-Impact Micropiles with Enlarged Toe in the Soils of Different Type
Authors: Podhorecki Adam , Hnatiuk Oleksandr , Lapchuk Mykola , Mazepa Oleksandr 
Published: December 2021

Abstract
The reinforced concrete micropiles with enlarged toe is the effective construction for the arranging of new and reinforcing of existing foundations which a drill-impact method are made as a circular bar with a diameter to 250 mm from the flow consistency concrete with prefabricated reinforcement cage and enlarged to two diameters toe cone-shaped form. For research of them real work by the authors of the article and engineers of PP BKF “Osnova” were conducted them field tests on the objects of building in the different soil conditions and the analysis of them calculation and experimental bearing capacity is given. The analysis of quantitative correlation of experimental and theoretical bearing capacity for the different types of soils is the task of researches.
Urban perimeters issues in low-density areas
Authors: Gonçalves Olga , Virtudes Ana 
Published: December 2021

Abstract
In the domain of spatial planning, there is a concern to preserve the territory whilst ensuring a proper expansion of urban perimeters. Cities, towns and villages should be contained within urban perimeters for building and urbanization purposes. The concept of urban perimeter is defined as the closed polygonal line demarcating the continuous territory of urban land-use. The spatial planning instruments should define the urban land-use referring to areas totally or partially urbanized or built. Regarding low-density territories with a greater propensity to urban sprawl and population ageing, the previously mentioned rules are not always met. Thus, this study focuses on the case of the Interior region of Portugal classified as low-density territory. Here the number of inhabitants is decreasing with low demand for urban spaces. However, the urban perimeters were mainly defined without being based on territorial features, topographic mapping or ecological sensitive areas. Thus, for a diversity of aspects, there are inappropriate areas to build that were wrongly included as part of urban areas, creating as a result urban void. One main reason for this problem are the topographic conditions that don’t fit with the urbanization and building requirements in urban perimeters. In this sense, this research aims to describe the articulation between the urbanization and building processes, under the rules of the Municipal Master Plans, regarding the topographic features of urban perimeters. The conclusion shows that the most sloped areas are those that were less sought after for urbanization, however these zones comprise a significant part of the urban perimeters. Finally, there is the need to stress that in low-density territories, many urban voids will never be urbanized.
Case Study: Road Embankment Foundation on Weak Organic Soils
Authors: Majer Stanisław 
Published: December 2021

Abstract
The paper presents the problem of embankment foundation during reconstruction and extension of regional road 110 on the section Witomierz - Grądy. On this section the road crosses the valley of meltwater formed during the last Weichselian glaciation. It is a watershed area between the streams Stuchowska Struga and Otoczka Reska. In the Holocene a 961 ha fen peat called Wielki Smogorze has been formed. There are favorable conditions in the area for the formation of fen peats. The thickness of the peats is over 4 m, reaching almost 8.0 m in its peak. Since 1964 the Przybiernówko-Grądy II deposit (402 ha) is continuously exploited. Currently, the deposit is being used by a company called "Lasland". Extraction is conducted on the basis of a relevant concession within a designated mining area of 242.9 ha. The mining concession is valid until the end of 2030. The pits are deep and are located on both sides of the regional road no. 110. Peat is transported by narrow-gauge railroad to the nearby processing plant, where it is sieved, sorted and packed. Based on the analysis of available archival materials, the road as found today was functioning already in the middle of the 19th century. In the 1970s the road was widened to 6.0m In 2003 due to the bad condition of the surface the asphalt layer was renovated by applying a grid and new asphalt layers. During the renovation longitudinal cracks have been reported and there were problems with the compaction of the mix. The direct cause was the shallow layer of peat located just 1.1 - 1.3 m under the road. Conducted renovation did not bring expected results, so in 2019 the documentation for the reconstruction of the road was prepared. Different methods of road foundation were analyzed, from soil replacement through the use of piles. In the end the decision was made to directly settle the embankment with the use of geosynthetics. This study presents a selected solution and shows the results of calculations. Changes during the execution of the reconstruction were discussed. The applied solution allowed for simultaneous functioning of the mining plant and reconstruction of the regional road on the section of 1.2 km. geotextiles and geonets were used. The main argument for such solution was relatively low cost of reconstruction and time of execution. During construction there were problems with obtaining the parameters on the substructure for asphalt layers. Two alternative solutions were proposed, one of which required increasing the thickness of embankment reinforced with geo-mesh and an additional layer of CBGM mix substructure. The solution allowed to meet the design requirements and complete the reconstruction according to the plan without any problems.