Bulletin of Prydniprovs'ka State Academy of Civil Engeneering and Architecture

4-8

Authors: M. V. Savytskyi, K. Pogrebnyak, A. M. Sopilnyak

Problem formulation. Last years new buildings are increasingly remarkable for new architectural forms. It’s because there is a need for new and interesting projects. People want to be whole their life in houses with improved conditions, with greater size and non–standard space–planning decisions. Scientific and technological advances can solve these issues. Every year the value of land in the city is only growing, so it will be expedient to build a multi–storey building. In the design of such buildings it should be taken into consideration the type of structural system to ensure the safety, reliability, and quantitative indicator of living space. For multi–storey residential buildings mainly primarily skeleton system, in which vertical aperture, braced elements or kernel hardness perceive the horizontal load, are used. Framing consisting of columns and beams with floor slabs and covering perceives vertical load. Frame systems have many advantages such as: the ability to reduce the burden by building envelopes, variety of architectural forms, increasing the area of the premises etc. The framework can consist of such collecting as monolithic elements. In the design of such buildings it pays special attention to the type of floor, because it mainly determines the economic efficiency of the building. It should be noted that overlap, which is used for attaching architectural expression to the house are monolithic. Due to this type of construction ceiling can be erected any form. It’s necessary to analyze of several possible variants of monolithic ceilings to choose more economical. Such necessity is caused by requirement of large capital investments. Analysis of publications. Having analyzed study guide on designing the PC «Monomakh 4.2» [1] we can say that there are instructions for each stage of the design of reinforced concrete structure. Other existing articles only highlight the new features of software system. A topic of specific examples of options monolithic ceilings and their subsequent analysis after the calculation is not involved. The aim is the choice of rational monolithic floor by comparing the model of fragment of monolithic girderless ferro–concrete ceiling without capital and ridge ceiling with plates leaned on a contour in the PC Monomakh. To achieve the goal the following main tasks solved: 1. Construction of calculation models of monolithic girderless ferro–concrete ceiling without capital and ridge ceiling with plates leaned on a contour fragments in the PC Monomakh. 2. Calculation of overlap by method of finite elements. 3. Selection of armature for being compared variants of overlap. 4. Comparison of technical and economic performance of both variants. Conclusion. With PC MONOMAH it’s very convenient to compare variants of overlap. This program may correct the estimated model without creating a new file.

13-20

Authors: M. M. Beliaiev, V. Bеliaieva, A. V. Berlov

Purpose. Development of CWE (Computational Wind Engineering) of model for the forecast of pollution of the atmosphere when burning solid rocket fuel in the storage, not demanding big expenses of computer time and use of powerful personal computers when carrying out expected calculations. The pollution forecast on the basis of the developed model is carried out on the scale of «microscale». Methodology. For numerical integration of the equations of Navier — Stokes implicit differential schemes are used. For numerical integration of the equation of transfer of impurity is used alternately — the triangular implicit differential scheme of splitting. Findings. The offered model allows to calculate hydrodynamics of a wind stream taking into account its interaction with a gas stream — a product of burning of rocket fuel. The developed model was used for an assessment of efficiency of use of the partition placed on a shaft for local protection of the atmosphere from pollution at an emergency situation in storage. Originality. The numerical model, allowing to consider essential factors, such as influence of buildings, a relief and the meteoconditions, influencing process of dispersion of polluting substances in the atmosphere, and formation of a zone of pollution at emergency situations of chemically dangerous substances connected with issue is created. Practical value. The developed numerical model can be used in practice for expected calculations of possible zones of pollution at emergency situations on chemically dangerous objects, and also when developing PEA (the plan of elimination of an accident).

27-34

Authors: Yur. O. Kirichek, V. Demyanenko, A. Matvee, V. Hez

With 50 years of XX century arrangements for drainage of surface water (rain, snowmelt, from watering and washing, urban roads and streets ) has become a mandatory part of the design of urban roads [5; 6; 8]. Diversion of surface water can solve a number of problems. First, it reduces the number of traffic accidents and their severity reduced. Secondly, it prevents the penetration of water into the roadbed. As a result of reduced intensity during suffusion of pavement and does not deteriorate the mechanical properties of soils. Currently in the design, there are many methods of surface drainage systems, but leaving the road and climatic, economic and operating conditions, not all types of Drainage may apply in specific urban environments. Despite the large volume of publications and standards that govern the rules of design and installation of Drainage, recommendations on the structures under the conditions of a certain area is not enough. The writings of M. I. Alekseev [1] are common means of payment Drainage and selection of designs on the characteristics of the flow. Calculation of rain water offer foreign scientists [12– 15], based on the speed and bandwidth dependency structures. Building codes [3; 4] the general principles governing the design of drainage systems and structures that are designed to collect and transport runoff from surrounding areas directly from the road network, including the diversion of rainwater and melt water, receiving and removing water from the watering of streets, of the fault conduit systems and communications facilities, urban drainage systems shallow, productive waters that are allowed to descent without special purification or after crossing treatment plant, removing water from washing cars with the required clearance without the latest advances in the field of building production. Analyze the ways of arranging the surface drainage on city streets and roads as an example of Dnepropetrovsk and identify the most effective drainage construction in the road network. Conclusion. Based on the analysis and research in areas streets of Dnepropetrovsk at the moment, we can draw the following conclusions: 1. Drainage systems on the city streets of Dnepropetrovsk is not fulfilling its function in full; 2. The roads are mostly used point drain, line drain system is only used in some areas of the city; 3. One of the most effective ways to improve the drainage of water from the surface of the roadway - the device is linear drainage structures, which it is advisable to apply for the reconstruction of a comprehensive urban areas.

40-46

Authors: E. Gunko

A numerical model was developed to simulate the pollutant dispersion in the atmosphere after accidents. The model is based on the 3-D K-gradient model of pollutant dispersion. The implicit scheme is used for the numerical integration. Results of numerical experiment are presented.

52-56

Authors: G. P. Evseeva

Problem statement. The fortune of many patriotic songs is very similar to the fortune of Ukrainian nation. Every time when the nation revived, its dongs revived and resurrected as well. When Ukrainian nation was depressed with bondage, spiritual slavery, the national soul also got silent although never died. Many various patriotic songs continued their existence illegally, always filling the hearts of Ukrainians with hopes for better future. A song is the soul of the nation, national anthem is the highest appearance of its freedom-loving desires, spiritual-patriotic aspiration. Having lost its greatness of authority, Ukraine had not had its national anthem for several centuries; patriotic songs, often of regional character, which did not cover the fortune of the entire nation divided by the borders of Austro–Hungarian and Russian empires, had replaced it. Analysis of publications. National-spiritual heritage by P. Chubinski has been explored by different scientists, for instance, A. Zil’ [1], V. Miyakovski [4], N. Ship [6], I. Kolyada [2] etc. The period when P. Chubinski lived and worked is qualified by scientist as the second stage of Ukrainian national revival. Ukrainian intellectuals established linkage between the prospective of Ukrainian liberate movement and the necessity of self-identification of Ukrainians through establishing uniqueness of the language and culture of Ukrainian nation. Pavlo Chubinski was a lawyer by profession, ethnographer, poet and folklorist by calling, passionate patriot by convictions. Bright manifestation of patriotic-national feelings of Ukrainians of our united land was appearance of the poem by Pavlo Chubinski «Shche ne vmerla Ukrainy» (Ukraine Has Not Yet Died). There is no other piece of writing in the Ukrainian literature with such a magnificent and tragic fortune. Magnificent because it embodied the eternal dream of the nation to become sovereign, obtain freedom; it reflects the unbeaten belief in Ukraine’s revival. Tragic because for more than a century the anthem-song was persecuted, forbidden. They tried to kill it but did not manage to. Creation of Ukrainian anthem rises from the beginning of the autumn 1862. The reason to remember all these old events is the recent event of the international scale. On 30 September 2013 UNESCO World Heritage Centre recognized Ukrainian anthem as the best in the world. It was informed by Interfax-Ukraine referring to the UN News Centre [http://www.un.org/russian/news/]. The rating included national anthems of 193 countries of the world. The anthem of Ukraine won the first place in the general rating. Four characteristics were considered, in two of which Ukrainian anthem got the highest point. They are euphony and harmonious combination of musical and lyrical parts. High point was also obtained for originality of musical decision and integrity as well as for content-richness of the text. Ukraine was the only European country in the top-five, in general in the top-ten best national anthems there were included the ones of New Zealand (2 place), South Africa (3 place), Australia (4 place), the USA (5 place), Canada (6 place), the United Kingdom of great Britain and Northern Ireland (7 place), Spain (8 place), France (9 place) and Japan (10 place). This year Ukraine and Ukrainians celebrate 150 anniversary of the prominent poet who presented us the magnificent piece of art, which has become the symbol of uniting the state. At last under the influence of alarming events every Ukrainian citizen perceived the immortal text as the symbol of freedom, will and new hopes. It is pleasant to watch all the Ukrainian people singing the anthem of their country. Today in conditions of formation of democratic state the anthem of Ukrainian state became uniting factor, the patriotic element without which any country of the world cannot exist. Therefore, among numerous works in Pavlo Chubinski’s heritage the one, which brought him the immortal fame, was creation of solemn song of fighters for freedom that for a century and half has become the National Anthem of independent Ukraine.