Vol 7, No 3 (2017)

The paper provides a calculation methodology for weld defl ections appearing when the method of cross-sections increase of compressed rods of steel coating farms is applied. The methodology is based on the method of determining welding deformations known as the "dummy temperatures" method. The following distinctive features of reinforcement are taken into account: pressure tension from loading in reinforced elements, surfacing of several longitudinal welds, complexity and variety of cross-sections.

Functioning of industrial buildings is impossible without correctly organized ventilation system. Its work both regulates heat moist mode and the required indoor air purity that is cleaned with the help of air cleaning equipment. To make decision to construct the required air cleaning equipment at the enterprise it is worthwhile to give additional parameters and to solve a problem of multicriteria optimization to get the best results. The choice of the best variant is supposed to be carried out using Harrington’s desirability function. The conducted multicriteria analysis allowed to reveal optimum characteristics of air cleaning equipment, based on the required purifi cation air degree, the geometrical sizes of the equipment and aerodynamic resistance while introducing any particular device.

The paper discusses advantages and disadvantages of existing methods for determining water quality. It proposes to use electro-kinetic capacity as a key indicator together with cluster analysis of obtained results. It is shown, that according to such indicators as pH, turbidity, alkalinity, general rigidity, content of ion Ca2+, Mg2+, the quality of drinking water in Samara is stable and consistent with existing standards. The research reveals some zeta-potential (ZP) dependence on water pollution density. It was shown that the link between zeta-potential and various kinds of contamination in drinking water is underexplored and requires further detailed study.

This research studies eff ects of technology factors on strength and durability of fi bre reinforced concrete. It theoretically proves the infl uence of elastic aftereff ect deformation values on fi bre reinforced concrete strength and durability. The paper proves that high-modulus fi ber reinforcement leads to lowering the eff ects of the infl uence of elastic aftereff ect deformation on fi bre reinforced concrete strength and durability. It also demonstrates that basalt fi bre and superplasticizing admixture C-3 integrated use in fi bre reinforced concrete reduces the deformation value of elastic aftereff ect to 25% and makes it possible to obtain a material with FI 400 and above frost resistance properties.

The calculation of the strength of concrete slabs load bearing capacity does not take into account synthetic sheets impact while calculating concrete-fi lled textile fl oor-mats. Further studies are proposed to assess the impact of sheets in laboratory environments. The authors base their study on the properties of concrete-fi lled textile fl oor-mats as fl exible beams and on synthetic sheets impact on strength indicators. The paper presents a laboratory study results obtained under diff erent conditions of textile synthetic sheets impact on concrete-fi lled textile fl oor-mats load bearing capacity. It provides a function to determine a mat thickness from the condition of its strength.

This paper considers issues of residential area (which is next to Chernovsk Highway) construction (Yuriy Gagarin str.) which took place in the1960s according to Kuibyshev-city general lay-out. The features of this design decision have been described in the context of general trends in urban planning and architecture and their development. The paper focuses on functional processes in the living environment and objective laws of their management, on user-friendly transport and pedestrian accessibility, and on the creation of an enabling and aesthetically sound environment. It defi nes a type of building development and features of architectural and planning solutions of using typical residential buildings and public facilities, as well as specifi cs of composite construction providing visual communications.

The approaches to delimitation of urban agglomerations formed by European science and practice are analyzed and summarized in the present work. The essential defi nitional analysis of the concepts of «urban agglomeration», «urban area», «metropolitan area», «urban region», «metropolitan region» is conducted. The main algorithms of delimitation of urban agglomerations used in the fi elds of urbanology, management, statistics, economic geography are classifi ed. The current trends in the development and improvement of methods of delimitation of agglomerations proposed by European researchers are identifi ed.

The paper demonstrates values of an anonymous language and its potential for design practice. It att racts att ention to the problem of unprofessional architecture which is underestimated in professional practice. The thing is that squatt er development is usually seen as a product of poor architecture and is widely destroyed and replaced by typical unifi ed objects. The question of the legitimacy of such project invasion is raised in the paper. It puts forward a methodology for working with anonymous languages and demonstrates how to do taking the so-called "Red houses" (districts within Cheremshanskaya - Nagarnaya - Voronezhskaya - Kalinin streets and Rotorniy alley) as an example. The paper covers issues which were faced during the work. It takes three projects - that is "Municipal Design", "Public design" and "Custom design" - as examples and explores strategies of the design "intervention" of a professional architect and ways of dialogue with the environment on the language level.

The research task of this paper was to identify the topical areas of improving the quality of urban environment and to generalize of approaches to ensuring its sustainable development. International and Russian trends in the formaition formation and the optimization of infrastructure of community facilities (rental housing, health care, education, culture and art, physical training, sport and tourism, social maintenance) and engineering-communal services of cities was are treated. The authors revealed certain regularities between demographic, economic and recreational capacity of territories and the consumer properties of the urban environment. Att ention is focused on the issues of quantitative correspondence of the network of necessary infrastructure facilities and improvement of the quality of design solutions. Current trends that correspond to the tasks of reducing the anthropogenic impact of buildings on the environment are also shown.

The article describes the background of the principle of architecture and monumental arts synthesis that emerged in the domestic version of modernism in 1960s. It mentions artists and architects who contributed to the modernist architecture enrichment with artistic and plastic tools. The infl uence of Moscow monumentalists who worked all over the USSR improving the image of young Soviet cities is stressed. With Toglyatt i as an example, the paper demonstrates diff erent ways how the principle of architecture and monumental arts synthesis might be applied and also discusses the principle of a single urban design plan that emerged in Soviet architecture. The authors describe construction objects built according to this principle, give glimpses of biographies of artists. The given details are based on the previous archive studies. They also provide possible reasons for the decline in monumental art and predict the emergence of modern forms of art that would interact with architecture. Objects, to which the principle of architecture and monumental arts synthesis might be applied, become a potential and an internal resource for tourist and cultural att raction of the city.

The paper analyses heat-supply systems of four major Russian cities and heat-supply regulatory documents. The authors investigated company documents providing information on construction objects prospective connection and on unconnected consumers for each heating season. The information contained in the documents was summarized and made anonymous to preserve confi dentiality of consumers. The researchers also studies data from the offi cial site of the Municipal Service Department of Omsk Administration. The data showed housing stock structure and its coverage with centralized heating services. The following percentage rating for reasons causing the thermal load removal is detected: thus, 31 of 47 construction objects with a total load of 80.8% (of the total load removed during the period under review) were switched off the system because of "The resett lement program for citizens from the emergency housing stock" in 2016. Typical problems of a large sett lement centralized heating system operation are also described in the paper. It is shown that there is a tendency towards a signifi cant increase in the amount of annual heat consumption decline underway. This increase in decline may be 32-multiple in some regions, and it may go slow in the others. Making recommendations based on the results of the design calculation will clarify diameters of trunk and intra networks, which the authors see a task for the future. In general, this methodology should help to adjust industrial strategies for consumer needs.