The problems of constructive and technology forming of spherical shells based on radial - ring network was considered. Investigated from several different constructive-technological methods of formation of triangular networks on the sphere, which was named "Trainer". In each of them the optimality criterion is the minimum number of sizes of structural parts and a minimum number of Assembly elements of the dome, the possibility of pre-Assembly and pre-stress. Theoretical background placement of panels in the form of regular hexagons in composite spherical shells. It is determined that the shell surface has a positive Gaussian curvature for the given order of the panels and require specific structures, installation of nodes.

Detailed aspects of application of methods of structural mechanics at the decision of tasks of combined Geotechnology. Formulated the concept of capacity utilization of technologically disturbed discrete rock mass. The regularities of the behavior of rock masses as a response to anthropogenic intervention. This model, the stability of the arch natural equilibrium and stability of a flat roof. The estimation of prospects of improvements of substandard ore deposits alternative to traditional technologies method with the leaching of ores. The conditions for the effectiveness of combining traditional techniques with hydrometallurgical technologies for the extraction of metals.

It is proposed the program and methodology of experimental researches of reinforced concrete constructions under the action torsion with bending, the main purpose of which is to check the calculation assumptions and the experimental determination of the design parameters of the proposed calculation method. The experimental researches are performed in order to test the proposed method of calculation and identify patterns and parameters of cracking, development and crack opening, and criteria for the destruction reinforced concrete constructions by torsion with bending. The most important ones are follows: the generalized load R _sup,crc , R _sup,u , the coordinates of spatial cracks formation, the width of spatial crack opening at the level of the axis of the longitudinal and transverse tensile armature along the entire profile of cracks; changing the distance between the cracks l _crc and crack length h _crc increasing the deformation load (with checking multilevel process of crack formation); compression strain of concrete and armature at the complex stress-strain state and others. The graphs of deformations are shown in the article for the analysis including on indications received by strain gauge transducers.

The results of calculation of the spatial geotechnical model "building - foundation" of the nuclear waste storage facility of the nuclear power plant are presented. The results of calculations in the form of average and maximum sediments and rolls of the object under consideration are compared with the data of geodetic monitoring. Based on the results of this analysis, it was concluded that it is possible to extend the operation of the nuclear waste storage facility for another regulatory period. Given that the stabilization of the sediment of the building blocks has not come, it is recommended to extend the geodetic control of the sediment and roll of the object under consideration.

The article considers the possibility of applying the method of interpolation by the shape factor to the determination of the membranes fundamental frequency of oscillation in the form of symmetrical and nonsymmetrical circular lunettes. The oretically shown, that the eigenvalue of the differential equation of membranes depends only on the form factor. Given examples of choice "support" solutions and it’s numerically confirmed, that for all membranes in the form of symmetric and asymmetrical circular lunettes can use only an analytical dependence on the argument as a form factor. Extreme properties of the lunettes in the form of symmetrical lunettes were studied. It is proved that from of all membranes in the form of equal circular lunettes the smallest value of the fundamental frequency of oscillations has a membrane in the form of symmetrical lunettes.

Within the spectral theory of seismic resistance the applicability of a simple model of reinforced concrete frame, considered as a cantilever bar with distributed mass and taking into account the influence of floors. A reinforced concrete frame is used as a standard. The influence of different factors on the accuracy of natural frequency estimation on a basis of simple model is evaluated. The expression is offered, enabling to take into account the increase of beam-to-column joints flexibility in prefabricated frames on a basis of energy concept of Rayleigh.

The paper presents the results of studies of the parameters of the oscillatory processes of the structural structures of the bearing frame of the building of the preparatory department of the plant "Bunge CIS" in the village. Well of the Voronezh region. The approaches to the solution of the problem of excessive vibrations of elements of a bearing metal frame are described. The data of the recorded measurements at the facility with special instruments - Vibran 2.2 and a multichannel measuring system - are analyzed. The technique of measurements, the scheme of arrangement of acceleration sensors is described. The frequencies of oscillations are estimated, the results of spectral analysis are presented. The main causes of excessive vibrations of the frame elements of the building are identified and the types of equipment that have the maximum influence on the vibration of building structures at the facility are established. Numerical static and dynamic calculations are performed, the bearing capacity is estimated using an original technique based on the surfaces of the relative resistance, and recommendations are given for reducing the production vibration.

The article describes the technique and results of testing short pipe elements with a small diameter and a relatively high reinforcement factor. Electric-welded straight-through steel tubes 42x1,4 mm and 41,5x1,7 mm were used as a cradle for the concrete. With this type of indirect reinforcement concrete whose transverse deformations are limited works under conditions of triaxial compression that increases its strength and deformation characteristics. The article presents data on the load-bearing capacity of the samples, the longitudinal strain diagram, the transverse deformations and the Poisson's ratio depending on the level of the compressive load. The load-carrying capacity is calculated on the basis of EN 1994-1-1: 2004 Eurocode 4 and based on the dependencies offered by different authors. The theoretical values of the load-carrying capacity were compared with the values obtained from the results of the experiment.

Considered the issues of rigid reinforcement structures in bending. The substantiation of the selected theme of research is given. Detailed description and features of rigid and bar reinforcement for the studied structures are presented. Features of the models of materials used at manufacturing and their characteristics are resulted. The substantiation of the selected type of a fiber (a steel fiber straight a profile) by means of definition of mobility of a concrete mix is given. The analysis of the results of bending tests of models of steel-concrete composite beams obtained. General views and character of destruction of models are presented, the table of breaking loads is generated. The evaluation of existing calculation methods proposed in [1, 2, 3] and their comparison with the experimental results is fulfilled. It is estimated the efficiency of application of steel fiber straight profile in bending structures made of high-strength concrete.

In the article, raising the solution of the task like the Kirsch's problem is produced for the plate with circular hole made of orthotropic material with multimodulus behavior. The defining relations submitted in the monograph of A.A. Treshchov [1] are adapted for this class of problems. The article contains the conclusion of resolving equations. The concrete problem was decided on the basis of the built model with the use of method of finite elements. The article presents the most characteristic data research stress-strain state of plates. The results of calculations by the classical theory for constant mechanical characteristics had been compared with the results of the proposed model taking into account multimodulus behavior.

The article presents the calculation procedure of deflections of reinforced concrete structures under loads exceeding the standard values, which allows to estimate the stress-strain state of the structure and its proximity to a possible destruction point. As a basis for the calculation of the curvatures, which determine the deflection of reinforced concrete structures, was taken the non-linear deformation model recommended by the set of rules SP 63.13330.2012 «Concrete and reinforced concrete structures. The main provisions».

Offered by method for estimating beam structures at work registered in the elastic, plastic and reinforcement stage of deformation as a cable system. Terms strength is characterized by limiting valve deformation. Considered beam structures with fittings to the physical limit of fluidity. For dynamic analysis of reinforced concrete structures on the blast and shock methods used, which shows the dependence for determining the parameters of the dynamic loads produced by explosions of various substances. Limit points are determined by the dynamic resistance of reinforcement and concrete. After the destruction of the concrete compression zone in the entire reinforcement(bottom and top) there is a longitudinal tensile strength and design scheme of the beam becomes a cable system, if provided by the strength of joints and anchoring of reinforcement bars.

In public buildings for various purposes there are rooms with a massive stay of people. From simultaneously talking people in such premises, high noise levels are created, affecting the health of long-term people in them, worsening the intelligibility of speech. To assess the influence of this noise on the acoustic quality of the environment of the premises and the development of measures for their acoustic improvement, it is necessary to have methods for calculating the noise that occurs in rooms with a large population of people. The article proposes methods for calculating direct sound and reflected noise from people as from sources uniformly distributed over the room. The methods take into account the peculiarities of the radiation of sound energy by people as sources of noise and their influence on the formation of the noise regime of premises. The proposed methods of calculation make it possible to evaluate the acoustic qualities in rooms with a mass stay of people and to control them purposefully through the use of sound absorption of premises.

People since ancient times assigned different roles of landscape-recreational spaces (LRP). All of this was dictated by the peculiarities of the historical eras. A brief analysis of city of Voronezh and showed how did planning decision as historic conditions affect the plan structure. The article attempted to formulate the system classification model of an LRS on hierarchical planning level. A systematic approach to the problem of reconstruction of public recreational spaces, as one of the main elements of city building, will identify and scientifically substantiate the place and value of this specific and insufficiently studied activity on harmonizing the relationship and interaction of the population and recreational Wednesday its Habitat. In today's world, new technologies and automated processes any space is complete, if there are four processes. -industrial, household, recreational and communications.

The article presents the results of a preliminary analysis of the heat consumption for heating of buildings in accordance with the standards developed in Germany and Russia, the reasons for the discrepancy of these rules in both countries are named. Analyzed requirements to the heat losses of buildings in accordance with passive house standards. The house with an area of 160 m ² , located in the Moscow region was taken as the object of investigation. The calculation results of thermal insulation of energy-efficient building were made via the design package passive house PHPP and designPH. The main construction solutions for facade and insulation, energy efficient windows, insulation of ceiling and roof of the building are provided in accordance with the calculations of heat loss realized during the construction. The results of energy inspection of the thermal building envelope with a thermal imager are presented.

The paper presents the concept of applying a complex methodology for analyzing the behavior of cement composites, based on silicate additives, with high-temperature heating. There are presented conditions for testing on the basisс of existing methods for studying inorganic building materials under high-temperature influence. Based on the results of thermogravimetric analysis, it was concluded that high-grade concrete has a stronger structure and higher stability when high temperatures are produced. Heat-resistant additives are added to cement compositions, the breakdown of their structure upon heating shifts to a region of higher temperatures -red. The economic effect is shown of the introduction of the proposed method at the stage of analysis of the change in physical and mechanical properties in the evaluation of building materials under high-temperature influence.

Fine concrete is one of the most demanded materials in modern construction. Properties of fine-grained concrete are defined by the same factors as that of concrete large aggregate, but there are a number of reasons: increased the consumption of cement, more homogeneity, high porosity, low Flexural strength, tensile and shock loads. Of particular interest from the point of view of improvement of consumer properties of fine-grained concrete, is it modifying additives of polymeric materials, including additives shredded plastic. An assessment of the capacity of use in the fine aggregate concrete plastic waste: polyvinyl chloride chips that are formed in significant quantities in the production of plastic windows and shredded scraps of plastic pipes. The studies confirm that the modification of fine-grained concrete, plastic-ment of waste in the form of polyvinyl chloride chips or rings from scraps of plastic pipes in the amount of 0,5-2 mas. % increases its bending strength and compression. The introduction of the chip set, which limits contributes to a slight decrease of density of fine-grained concrete, and the introduction of the rings has no significant effect on this parameter.