Noise Spectra of Ball-Rod Hardening of Welds of Rod Structures

The current technical condition of a multi-storey frame building structures is studied. The survey is carried out for individual structural elements of the object, which makes it possible to determine the actual technical condition of the building and its constituent elements. Additional damage and defects appeared at the object under study due to the forced break in construction. Verification calculations of the non-existent capacity of structures were performed based on the results of the technical condition monitoring. The existing real operational loads and impacts were taken into account in the calculations for the actual design schemes. The results of field studies were processed to develop a reconstruction project for a frame multi-storey building. Quantitative estimates of the actual quality indicators of load-bearing building structures were used. A computer-based verification calculation based on the application of a finite element model was performed for the construction of a cinema hall located in the frame building under study. Plots of internal forces in structures are obtained. It is concluded that the object under study is in a working technical condition.

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“…Let us consider the results of measurements and the assessment of indicators used in verification calculations [20,21,22].…”

Section: Analysis and Generalization Of The Survey Results Assessment...mentioning

confidence: 99%

Assessment of the load-bearing capacity of materials and structures using a finite element model

Sazonova

Zyazina

Smetankina

et al. 2022

J. Phys.: Conf. Ser.

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“…To photograph the samples, they had to be collected and fixed with wire [24][25][26]. For dispersed-reinforced prisms, destruction was more viscous, and the nature of the destruction directly depended on the amount of fiber in the concrete [27][28]. A comparative view of the destruction of prisms during dynamic tests is shown in figure 6.…”

Section: Resultsmentioning

confidence: 99%

Behavior of dispersion-reinforced concrete under dynamic action

Nikolenko

Sazonova

Asminin³

et al. 2022

J. Phys.: Conf. Ser.

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The work of structures under alternating dynamic load has also been studied and modeled. Based on the results of experimental studies, a comparison was made of the work of dispersed-laminated structures under alternating dynamic action of high intensity with the work of reinforced concrete beam elements under similar influences. Dispersed concrete reinforcement changes the properties of the latter. The results of comparative experimental studies of cubes and prisms with different degrees of compression reinforcement are presented. The research results showed a significant effect of dispersed reinforcement on the operation of structures under the investigated influences and the feasibility of combined reinforcement of structures. The use of dispersed reinforcement in structures will improve their performance.

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“…7, 8). Steel fibers can partially and sometimes completely replace conventional bar reinforcement due to the fact that steel fibers also increase the load-bearing capacity of structures [34,35] .…”

Section: Concrete Pavement Manufacturing Processmentioning

confidence: 99%

Monitoring Concrete Road Pavement Damages

Sazonova

Nikolenko

Akamsina

2022

IOP Conf. Ser.: Earth Environ. Sci.

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The paper considers the main processes that affect the quality of concrete road surfaces. The quality of concrete pavement depends on the quality of the preparation of the base, the concrete components quality, and the quality of the coating technology. The processes of concrete components quality control, the process of its manufacture, as well as the control of road surfaces that have fully gained strength and are ready for use are studied. Examples of the defects formation on concrete surfaces are given. The factors influencing the occurrence of deformations in road surfaces are considered. In fact, concrete is a mixture of a binder, coarse and fine aggregate, various additives and water. The process of its production is a set of mandatory measures, without which it will not be possible to obtain high-quality durable material. The measures that exclude the defects formation on concrete road surfaces are proposed. The purpose of the paper is to analyze the processes of concrete road surfaces construction with the identification of the main measures to improve their quality.

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Noise Spectra of Ball-Rod Hardening of Welds of Rod Structures

Cited by 31 publications

References 15 publications

Assessment of the load-bearing capacity of materials and structures using a finite element model

Assessment of the load-bearing capacity of materials and structures using a finite element model

Behavior of dispersion-reinforced concrete under dynamic action

Monitoring Concrete Road Pavement Damages

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