Experimental study of vibrations of cross-rod spatial structures

This article explores a technique for studying the dynamic characteristics of cross-rod spatial structures (CRSS) using small-scale models, including the developed nodal connection of spatial frame rods protected by copyright. Using a nodal connection makes it possible to regulate the construction l...

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Main Authors: Khalmuradov Rustam, Khudoynazarov Khayrulla, Isabekov K
Format: Article
Language:English
Published: EDP Sciences 2023-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/02/e3sconf_conmechydro2023_02006.pdf
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author Khalmuradov Rustam
Khudoynazarov Khayrulla
Isabekov K
author_facet Khalmuradov Rustam
Khudoynazarov Khayrulla
Isabekov K
author_sort Khalmuradov Rustam
collection DOAJ
description This article explores a technique for studying the dynamic characteristics of cross-rod spatial structures (CRSS) using small-scale models, including the developed nodal connection of spatial frame rods protected by copyright. Using a nodal connection makes it possible to regulate the construction lifting of large-span structures and increases their strength and reliability. The developed nodal connection of the structure can be used for any spatial frames of buildings and structures and is especially effective for the frames erected in areas of high seismicity. Choosing methods for excitation of free and forced vibrations is being investigated, equipment for recording and recording vibrations is selected, and a layout of vibration sensors and sources of excitation of free and forced vibrations is being developed. Natural vertical oscillations of the structure model were caused by removing it from the state of equilibrium by concentrated loads applied in the middle and a quarter of the span with their subsequent removal. The test results and their analysis are analyzed. The experimental models' elements at all loading stages worked in the elastic stage. The tests showed that the structure has sufficient strength, stability, rigidity, and seismic resistance. Based on the results obtained, recommendations were made for their use in calculating and designing CRSS for seismic regions.
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spelling doaj.art-c82b5ad62c1b40129caf842017a377a32023-01-31T09:54:02ZengEDP SciencesE3S Web of Conferences2267-12422023-01-013650200610.1051/e3sconf/202336502006e3sconf_conmechydro2023_02006Experimental study of vibrations of cross-rod spatial structuresKhalmuradov Rustam0Khudoynazarov Khayrulla1Isabekov K2Samarkand State UniversitySamarkand State UniversitySamarkand State UniversityThis article explores a technique for studying the dynamic characteristics of cross-rod spatial structures (CRSS) using small-scale models, including the developed nodal connection of spatial frame rods protected by copyright. Using a nodal connection makes it possible to regulate the construction lifting of large-span structures and increases their strength and reliability. The developed nodal connection of the structure can be used for any spatial frames of buildings and structures and is especially effective for the frames erected in areas of high seismicity. Choosing methods for excitation of free and forced vibrations is being investigated, equipment for recording and recording vibrations is selected, and a layout of vibration sensors and sources of excitation of free and forced vibrations is being developed. Natural vertical oscillations of the structure model were caused by removing it from the state of equilibrium by concentrated loads applied in the middle and a quarter of the span with their subsequent removal. The test results and their analysis are analyzed. The experimental models' elements at all loading stages worked in the elastic stage. The tests showed that the structure has sufficient strength, stability, rigidity, and seismic resistance. Based on the results obtained, recommendations were made for their use in calculating and designing CRSS for seismic regions.https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/02/e3sconf_conmechydro2023_02006.pdf
spellingShingle Khalmuradov Rustam
Khudoynazarov Khayrulla
Isabekov K
Experimental study of vibrations of cross-rod spatial structures
E3S Web of Conferences
title Experimental study of vibrations of cross-rod spatial structures
title_full Experimental study of vibrations of cross-rod spatial structures
title_fullStr Experimental study of vibrations of cross-rod spatial structures
title_full_unstemmed Experimental study of vibrations of cross-rod spatial structures
title_short Experimental study of vibrations of cross-rod spatial structures
title_sort experimental study of vibrations of cross rod spatial structures
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/02/e3sconf_conmechydro2023_02006.pdf
work_keys_str_mv AT khalmuradovrustam experimentalstudyofvibrationsofcrossrodspatialstructures
AT khudoynazarovkhayrulla experimentalstudyofvibrationsofcrossrodspatialstructures
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