Construction of bridge structures occupies one of the leading positions in the construction industry. However, the design of these objects is a complex multi-factor task. Particular attention in the development of bridge structures must be paid to wind loads, since their dynamic loads can cause a number of adverse aeroelastic reactions. Large-scale bridge structures, which are flexible structures, are more susceptible to horizontal influence of the wind. This article presents a description of the study of wind impact on a bridge being built in the city of Moscow, according to a technique that was developed by employees of the UNPL AAISK (NRU MGSU). In this case, a test of the span section of the model on a specialized stand was conducted. The example of this object shows a graph of the dependence of the amplitude of oscillations of the bridge span on the wind speed without the use of fairings and their installation. According to the results of the work conclusions.
This work is devoted to the problem of studying the energy efficiency of buildings, in particular - the definition of infiltration losses. The article presents the main methods for determining infiltration, which are presented in SP 50.133330.2012 and GOST R 55656-2013. However, the infiltration of air through the building envelope depends largely not only on the structural and planning features of the building, installed equipment, etc., but also on the environment, the climatic characteristics of the region in particular the effect of wind. In this regard, the staff of the Educational, scientific and industrial laboratory for aerodynamic and aeroacoustic tests of building structures of the NRU MGSU developed an addition to the existing established algorithms for calculating infiltration using the data of the experimental wind impact study, which is presented in this paper. The publication contains a description of the main stages of the implementation of this type of work.
One of the aspects that affect the level of environmental quality in residential development is the wind regime of the territory. To achieve the goal of ensuring bioclimatic comfort, it is necessary to carefully study the distribution of air flow at the design stage. The article presents a description and comparison of the main methods of experimental visualization of wind exposure in building conditions. The work describes in more detail the method of tracer visualization, which is used in NRU MGSU. The article presents a description of the equipment used, the basic requirements for conducting a pilot study and a description of the results obtained. The article also presents approbation of this method on the example of a projected residential complex in the city of Moscow. The paper reflects the main results obtained in this particular study, and the developed recommendations are given as an example. According to the results of the work, conclusions are presented.
This article is devoted to the description of experimental studies of wind impact on a religious temple in compliance with religious purposes. Studies of aerodynamic characteristics should be carried out using experimental methods for each Orthodox church individually. In the first chapter, the authors describe the specifics of the design of religious buildings, in the type of design of Orthodox churches. In the second chapter, brief information on the conduct of experimental studies of wind impact on the basis of NRU MGSU is launched. In the third chapter, a description of the experimental study of the wind effect on the Orthodox church, created in the Moscow region. Conclusions regarding this study.
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