scholarly journals Assessment of ecological stability of the built environment in relation to sustainable construction

2019 ◽  
Vol 14 (2) ◽  
pp. 87-94
Author(s):  
Natalia Junakova ◽  
Jozef Junak ◽  
Eva Šelingova

AbstractWhen placing buildings in a landscape environment, the urban and architectural design of the building must be in harmony with the surrounding environment. The environmental criterion in assessing the sustainability of buildings and the subsequent environmental certification of buildings is the construction site selection in terms of its ecological importance. The way to determine the ecological value of a territory is through the determination of the landscape’s ecological stability, which can be considered as a basis for assessing all conditions and assumptions of land use. Maintaining ecological stability on Earth is a prerequisite for sustainable development and is of long-term strategic importance for the development of society.The contribution is focused on the evaluation of ecological stability in relation to sustainable construction in the cadastral area of the village Vajkovce, located in the district of Košice-okolie (surrounding). The ecological stability of the territory is evaluated by several methods used in the assessment of the landscape ecological stability and their modifications expressed by the coefficient of ecological stability. The results indicate that the territory of the municipality of Vajkovce is one of the ecologically unstable areas and therefore appropriate measures were proposed to increase its ecological stability.

The assessment of the spatial structure the land cover has great significance for the research of landscape especially from the aspect of the maintaining landscape ecological stability and the sustainable development as well as the landscape potential. At the same time it has an important role in identifying of impacts the industry on the landscape. The classes of land cover layers can be considered as the basis for other analyses of landscape. Purpose.: In the contribution we decided to compare the changes in landscape structure between the years 1958 - 2009 in territory of city Krompachy. Methods: field, analytical and mathematical. Results: For evaluating changes in the landscape structure we used topographic map from 1958 and orthophotomaps of the actual situation in 2009. The changes in the landscape structure were evaluated through GIS technologies in time horizon 1958 - 2009. Absolute and percentage differences in the land cover classes for the time horizon 1958 - 2009 are expressed by means of contingency tables transformation. The trends in the development classes of land cover are documented by the graph of the land cover classes on the second hierarchical level.


Author(s):  
Estela Karem Samamé Zegarra

Developing countries such as Peru are not strangers in promoting sustainability in buildings through local certification programs such as My Green House funded by international organizations; or architectural design competitions for houses such as “Build to Grow”; compliance standards such as the one published in March 2018, “Climate Change Law”; in addition to other optional legal standards such as “EM.110 Thermal and Light Comfort with Energy Efficiency”: a technical code of voluntary sustainable construction; and the entry of international environmental certifications such as EDGE and LEED, which are currently very welcomed by real estate developers due to the incentives. One of them is the height bonus, which is promoted by some municipal ordinances, mostly located in the capital city of Lima as a product of a project developed and promoted by the IFC and World Bank. On the other hand, in the retail or office sector, they are promoted by green corporate policies; however, there is a long way to go.


2017 ◽  
Vol 7 (3) ◽  
pp. 83-92
Author(s):  
Suheyla Buyuksahin Siramkaya ◽  
Dicle Aydin

The properties of physical environment affect the psychological processes of the individuals and groups using that environment and their socialization with their environment. Every physical environment includes the existence of a social environment and every social environment includes the existence of a physical environment; because socialization is one of the basic human needs. The fulfillment of this basic requirement is possible when the spaces are designed in a way to have properties giving opportunities to social interaction. Among education spaces faculty buildings are social environments giving opportunity to young people to socialize, share interests, have relation with each other, develop the relationship within groups and belonging feelings. Social behaviors, social interactions and gathering areas of students in faculty buildings are important issues from the point of architectural programming and architectural design performance. This study is depended on the evaluation of social environments in faculty buildings considering the students’ social interactions upon the selected faculty building. In the scope of this evaluation long term observations directed at the determination of students social interactions and gathering areas will be done, the plan of the building will be analyzed through Syntax 2D and as a result the effect of the spatial configuration on social interaction will be evaluated. Keywords: Space syntax, environment-human behaviour, spatial configuration, social interaction, faculty buildings.    


2016 ◽  
Author(s):  
M. Tamás ◽  
A. Farsang

Abstract. Hungary is rich of natural values, but often the condition of them does not meet our expectations. Oxbow lakes and floodplain areas of the South-Plain represent very significant value, not only from landscape, ecological or national tourism point of view, but it is also important from conservation aspect. The scale and ecological risk of contaminations deducted on rivers that are trapped in floodplains, especially in beds of oxbow lakes, can be judged by examining the sediment of the oxbow lakes. Though data from sludge analysis can provide information about the condition of the oxbow lakes, from which long-term processes or potential ruination of oxbow lakes can be concluded. In autumn 2011 we have collected samples of sediment from seven oxbow lakes of Lower-Tisza, out of these four were located in floodplain and three outside the dam. Following the suggested method of Commission of the European Communities Bureau of Reference we analyzed the sample's arsenic, zinc, cadmium, lead, nickel, cobalt, manganese, chromium and copper content with four step BCR sequential extraction, in this way we defined the acid extractable, reducible, oxidisable and residual phases of the heavy metals can be found in the sediment. It can be stated in all fractions that the contamination matter content in floodplain oxbow lakes is higher than outside the dam. Arsenic, manganese and zinc are present in the sediment of the oxbow lakes in an easily mobilizable form. Regarding the third fraction of arsenic a high metal proportion (15 % 


Author(s):  
Allen Angel ◽  
Kathryn A. Jakes

Fabrics recovered from archaeological sites often are so badly degraded that fiber identification based on physical morphology is difficult. Although diagenetic changes may be viewed as destructive to factors necessary for the discernment of fiber information, changes occurring during any stage of a fiber's lifetime leave a record within the fiber's chemical and physical structure. These alterations may offer valuable clues to understanding the conditions of the fiber's growth, fiber preparation and fabric processing technology and conditions of burial or long term storage (1).Energy dispersive spectrometry has been reported to be suitable for determination of mordant treatment on historic fibers (2,3) and has been used to characterize metal wrapping of combination yarns (4,5). In this study, a technique is developed which provides fractured cross sections of fibers for x-ray analysis and elemental mapping. In addition, backscattered electron imaging (BSI) and energy dispersive x-ray microanalysis (EDS) are utilized to correlate elements to their distribution in fibers.


Problems when calculating reinforced concrete structures based on the concrete deformation under compression diagram, which is presented both in Russian and foreign regulatory documents on the design of concrete and reinforced concrete structures are considered. The correctness of their compliance for all classes of concrete remains very approximate, especially a significant difference occurs when using Euronorm due to the different shape and sizes of the samples. At present, there are no methodical recommendations for determining the ultimate relative deformations of concrete under axial compression and the construction of curvilinear deformation diagrams, which leads to limited experimental data and, as a result, does not make it possible to enter more detailed ultimate strain values into domestic standards. The results of experimental studies to determine the ultimate relative deformations of concrete under compression for different classes of concrete, which allowed to make analytical dependences for the evaluation of the ultimate relative deformations and description of curvilinear deformation diagrams, are presented. The article discusses various options for using the deformation model to assess the stress-strain state of the structure, it is concluded that it is necessary to use not only the finite values of the ultimate deformations, but also their intermediate values. This requires reliable diagrams "s–e” for all classes of concrete. The difficulties of measuring deformations in concrete subjected to peak load, corresponding to the prismatic strength, as well as main cracks that appeared under conditions of long-term step loading are highlighted. Variants of more accurate measurements are proposed. Development and implementation of the new standard GOST "Concretes. Methods for determination of complete diagrams" on the basis of the developed method for obtaining complete diagrams of concrete deformation under compression for the evaluation of ultimate deformability of concrete under compression are necessary.


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