Vol 6, No 4 (2016)

The paper presents an analysis of practical solutions of slabs strengthening on the basis of special charts that allow predicting more accurately the change in estimated parameters of residual bearing capacity of structures. The article deals with the systematic problem of premature corrosion of construction materials of bearing structures, especially in the seaside sett lements, where there is constant high humidity and saturation of various salts in the air. Taking into consideration the survey fi ndings, design specifi cation requirements, architecturalplanning and constructive solutions, structure parameters and actual characteristics of materials the authors elaborate recommendations for reconstruction of corrosion-damaged structures of a canteen in Zaozerny village of Yevpatoria.

The aim of research is the analysis of constructional features of buildings in Samara in the late 19th century - in the early 20th century. Some of these buildings are still in operation being at the same time monuments of history and culture. Special and common features of construction solutions of foundations, walls, floor slabs and roof structures are marked. It is proved that economic considerations such as relative deficit and high cost of building materials - rolled steel, brick, broken stones - have a great influence on buildings structures. The examples of construction solutions of some buildings - monuments of history and culture are viewed.

The scheme of equalization of heat-transfer agent temperature expansion in independent heating system without temperature tank is viewed. To equalize heat-transfer agent temperature expansion regulating and safety valves are used in this scheme instead of temperature tank. The valves provide heat supply and heat rejection in- and out of heating system. The proposed scheme permits to equalize heat-transfer agent temperature expansion in heating systems with a large amount of heattransfer agent and with minimal capital cost.

The results of thermotechnical testing of aluminium, iron and bimetal heaters are presented. Heating capacity of appliances is determined by experiments, heat time is found by experimental and theoretical methods. Engineering method of dynamic properties calculation is proposed. Results analysis shows the differences between heat time and estimated heat time. In this regard correction index is added in calculation formula.

Different repair procedures for coffering of thermal generating set from fireclay refractory are viewed. To improve repair technologies the authors propose formulations of soluble-glass heat resistant plactic compositions with spread effect raised from metallic aluminum in the form of fine-dispersed particles. Coffering is treated by method of liquid phosphate bond deep impregnation to enhance thermal and chemical resistance of coffering repair surface. Phosphate bonds permit to enhance density and resistance of compositions based on any binding substance.

This article poses the question of the correlation of Russian legal and statutory regulation on the conservation of historical cultural heritage with the fundamental international charters, agreements and conventions. Comparative analysis of Federal Law No.73 of 2002 “On Objects of the Cultural Heritage (Historical and Cultural Monuments) of the Peoples of the Russian Federation” against 14 positions and principles previously defi ned in the author’s research of 6 of the fundamental international documents, describes both the general characteristics and areas of signifi cant disparity in the approaches to the conservation of historical and cultural heritage. It is noted that the harmonisation of Russian norms with internationally recognised principles should render the conservation of soviet avant-garde architecture more eff ective, however the lack of a complete body of methodological guidance is a hindrance to this process.

In the article the reforms of city administration in the fi eld of regulation of architecture and construction process in the second half of XIX - early XX centuries are discussed. In general course of reforms are determinative legislative materials, which became the base for the formation of new principles of territorial, sectorial and local control. During this period, the city becomes the focus of social problems, housing, transport, etc., requiring immediate measure solutions. For rapid response of the situation in the cities Central government transfers their powers at the local level.

The paper deals with the problem of modern high-rise buildings classification. It is noted that high-rise construction in world flourishes particularly in aspect of typological diversity enhancing. In these latter days different types of skyscrapers are appeared according to local features. By the example of New York we can see how legal standards reflect on character and form of high-rise buildings. The triggers of super-slender and luxury residential skyscrapers of Manhattan are analyzed. This buildings type features concerning their functional, planning, structural, technological, architectural and other characteristics are revealed.

The author of article considers the relationship of processes of information space of modernity and architectural reality. The article presents the typology of disclosure of the architectural- spatial in terms of information factor as the concept of self-organization. The author designates balance of semantic content of architectural-information space as a constant of formation of the urban environment and the city scenarios. It is established that changes of key environmental contexts result in need of revision of the tools and mechanisms of a shaping for works of the architect focused on a possibility of management of information.

The paper views the possibility of urban studies from the position of selected city-forming elements, whose quality and value characteristics are the indicators of actual state and transformation processes of urban areas. These elements become key elements to determine the vector of city development and urban planning forecast allows to evaluate and to monitor urban planning decisions. This city awareness permits to identify the values criteria of designed objects (spaces) and their grounds, presenting certain requirements for development of diff erent urban areas. Integration of the city-forming elements reveals a «complicated» relationship between the various parts of the city than is commonly believed today.

The system of organization of pedestrian traffi c is one of the urgent problems of the modern city. The aim of this work is to study the trends in the development of pedestrian spaces in the world, as the global trend and preconditions validation of this trend for the city of Togliatt i, a town-planning trends relevant for him. The article reveals the general typological principles and patt erns of occurrence of the pedestrian streets. In accordance with the purpose of research, the article describes the basic principles of pedestrian spaces and the current methods of their design. The att ention is focused on the current state of the issue in urban planning theory and practice. Formulated practical relevance and the need to establish in the city of Togliatt i such public spaces as pedestrian streets.

In this paper the infl uence of the curvature of the portion of the heat exchanger on heat exchange with the use of software systems Salome Meca and Code Saturne is numerically studied the verifi cation of the numerical model by comparing with experimental data of other researchers without taking into account heat exchange is made. The solution is held for an average fl ow rate equal to 11 m/s. To investigate the infl uence on heat transfer of the curvature of the channel carried out the construction of the computational domain in the form of the heat exchanger of the same length with diff erent turn radius. For discretization of the computational domain were used tetrahedral grids containing approximately 850 thousand of elements with local refi nement near the surface of the channel. As a result of simulation values of the fl ow temperature at the outlet of the channels are obtained. It is revealed that the design of heat exchanger channel, of course, aff ects the heat transfer, as well as data on the applicability of diff erent turbulence models for this type of task are collected.