Dr inż. Krzysztof Deska

Methodology of determining changes of a geometric state of a suspended roof in load conditions

The paper presents the methodology to determine changes in the geometric structure containing the conducted measurements and feasible variants of calculations. The object of detailed studies, whose results are presented in this work, is the suspended roof of the open-air theatre in Koszalin. In the research conducted since 2006, a database that contains the results of more than 40 periodic measurements of the structure carried out in different (registered during measurements) external conditions (including different temperature, snow and ice load) was used. The previous research conducted at this facility, among others, (Deska 2013, Kaczmarek and Śpiewak 2014b), as well as for other structures (Odziemczyk 2014) draws attention to the important influence of the temperature load of steel structures and hence the need for its consideration when assessing the geometric state. Electronic total station and the polar method with freestationing were used in periodic measurements. The calculations used a comparative method (differences of coordinates) and tools of a statistical analysis as well as developed calculation models based on them. The results obtained using both approaches were compared and assessed by indicating both their possibilities and significant limitations. The application of the suggested methodology provides the correct determination of changes in the ...

Dr inż. Leszek Dawid

Dr inż. Krzysztof Deska

Selected problems of registration and land register of ecological sites

One of the forms of protection of the natural environment, according to the legal act from April 16, 2004, is an ecological site. This form has been used in Poland since 1991.The main reason of creating ecological sites is a necessity to protect small-area objects which are valuable because of their environmental and landscape virtues and which due to their small area and minor importance are not protected by any other form, for example are not reserves (Koreleski 2004, Koreleski 2005, Sammel i in. 2012, Sajnóg, Wójcik 20).This article shows chosen elements present in a process of registering and recording ecological sites. Based on the analysis of works cited and present for many years legal acts and procedures, it has been stated that there can be discrepancies between data of various registers, and especially in registers of forms of protection of the nature and The Land and Building Register (EGiB). These data are incoherent and incomplete.The aim of the paper is to identify and show reasons for such a state and also its possible ramifications. Techniques of a qualitative analysis (of legal acts and regulations excising in the last 20 years) and descriptive analysis have been used in the research.Discrepancies ...

Dr inż. Leszek Dawid

Dr inż. Krzysztof Deska

Comparison and evaluation of completeness of data on ecological site register: a case study of the koszalin voivodeship and city of Koszalin

Ecological sites and their data included in official registers are the subject of the paper. While comparing the total area of ecological sites in The Land and Building Register (EGiB) (the state for January 1, 2012) in zachodniopomorskie voivodeship with the data on various forms of environmental protection included in the same source, one can notice big discrepancies. The first data mentions the area of 4 328 ha, the other ones - 6 424 ha. One of the purposes of the paper is to check whether similar discrepancies occur in Koszalin Province and City of Koszalin.The aim of the research, whose results are presented in the paper, was to show and evaluate discrepancies between various registers on the local level containing quantitative and area data of ecological sites. The main source of information used was the register of Regional Director of Protection of Environment (RDOŚ) and EGiB. The area of Koszalin province and Koszalin itself was the object of the research. The data collected for October 1, 2013 and quantitative and qualitative analysis of documents and area analysis were used.The conducted analyses resulted in pointing out deficiencies and discrepancies in both registers and evaluating numbers and areas of ecological sites ...