Pub Date : 2022-07-01DOI: 10.31650/2707-3068-2022-26-97-114
I. Karpiuk
The article presents the results of tests of concrete beams with basalt-plastic reinforcement (BFRP). These beams in previous studies were brought to the limit (ULS) state, and then reinforced with carbon fiber webs (CFRP).
{"title":"FEATURES OF DEFORMATION, DESTRUCTION AND CALCULATION OF DAMAGED BASALT CONCRETE BEAMS REINFORCED WITH CARBON FIBER CLOTH","authors":"I. Karpiuk","doi":"10.31650/2707-3068-2022-26-97-114","DOIUrl":"https://doi.org/10.31650/2707-3068-2022-26-97-114","url":null,"abstract":"The article presents the results of tests of concrete beams with basalt-plastic reinforcement (BFRP). These beams in previous studies were brought to the limit (ULS) state, and then reinforced with carbon fiber webs (CFRP).","PeriodicalId":365885,"journal":{"name":"Modern structures of metal and wood","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124076755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-01DOI: 10.31650/2707-3068-2022-26-25-32
S. Dziuba, O. Korshak, O.O. Mikhailov
The main reasons for the wear of the walls of metal cylindrical tanks are corrosion and fatigue of the metal of their vertical joints. It is possible to replenish for the corrosion losses of the material, as well as to reduce the level of acting stresses to values allowed by the conditions of metal fatigue, with external transverse reinforcement with fiber reinforced plastic (FRP).
{"title":"PARAMETERS DETERMINING THE DEGREE OF THE REQUIRED EXTERNAL TRANSVERSAL FRP REINFORCEMENT OF METAL CYLINDRICAL TANKS","authors":"S. Dziuba, O. Korshak, O.O. Mikhailov","doi":"10.31650/2707-3068-2022-26-25-32","DOIUrl":"https://doi.org/10.31650/2707-3068-2022-26-25-32","url":null,"abstract":"The main reasons for the wear of the walls of metal cylindrical tanks are corrosion and fatigue of the metal of their vertical joints. It is possible to replenish for the corrosion losses of the material, as well as to reduce the level of acting stresses to values allowed by the conditions of metal fatigue, with external transverse reinforcement with fiber reinforced plastic (FRP).","PeriodicalId":365885,"journal":{"name":"Modern structures of metal and wood","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121799342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-01DOI: 10.31650/2707-3068-2022-26-33-43
S. Dziuba, O. Korshak, O.O. Mikhailov
One of the modern ways to increase the bearing capacity of the walls of metal cylindrical structures that perceive the action of internal pressure is the external transversely directed reinforcement by fiber reinforced plastics (FRP), the most effective type of which is made from carbon fibers (CFRP).
{"title":"EXPERIMENTAL STUDIES OF ELEMENTS OF METAL CYLINDRICAL STRUCTURES STRENGTHENED BY EXTERNAL TRANSVERSAL CFRP REINFORCEMENT","authors":"S. Dziuba, O. Korshak, O.O. Mikhailov","doi":"10.31650/2707-3068-2022-26-33-43","DOIUrl":"https://doi.org/10.31650/2707-3068-2022-26-33-43","url":null,"abstract":"One of the modern ways to increase the bearing capacity of the walls of metal cylindrical structures that perceive the action of internal pressure is the external transversely directed reinforcement by fiber reinforced plastics (FRP), the most effective type of which is made from carbon fibers (CFRP).","PeriodicalId":365885,"journal":{"name":"Modern structures of metal and wood","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125497702","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-01DOI: 10.31650/2707-3068-2022-26-78-87
A. Wojnar, L. Ślęczka
In accordance with the guidelines contained in the European standard prEN 1993-1-1 (draft September 2020), the stability of multi-storey frames should be checked taking into account the influence of geometric imperfections and deformation of the structure under the applied load.
{"title":"METHODS OF ANALYSIS OF FRAME STRUCTURES ACCORDING TO THE EUROCODE EN 1993-1-1","authors":"A. Wojnar, L. Ślęczka","doi":"10.31650/2707-3068-2022-26-78-87","DOIUrl":"https://doi.org/10.31650/2707-3068-2022-26-78-87","url":null,"abstract":"In accordance with the guidelines contained in the European standard prEN 1993-1-1 (draft September 2020), the stability of multi-storey frames should be checked taking into account the influence of geometric imperfections and deformation of the structure under the applied load.","PeriodicalId":365885,"journal":{"name":"Modern structures of metal and wood","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134222257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-01DOI: 10.31650/2707-3068-2022-26-145-154
S. Shekhorkina, T. Kovtun-Gorbachova, V. Chaban
One of the modern directions in construction is the development of multistorey buildings, in which the main part of the structural elements is made of timber, and spatial stability is provided by reinforced concrete diaphragms or a stiffening core. A possible problem when using different materials in load-bearing structures is a significant difference in deformation characteristics and the effect of creep.
{"title":"INVESTIGATION OF THE CREEP EFFECT ON THE STRESS-STRAIN STATE ON TIMBER-REINFORCED CONCRETE MULTISTOREY BUILDINGS","authors":"S. Shekhorkina, T. Kovtun-Gorbachova, V. Chaban","doi":"10.31650/2707-3068-2022-26-145-154","DOIUrl":"https://doi.org/10.31650/2707-3068-2022-26-145-154","url":null,"abstract":"One of the modern directions in construction is the development of multistorey buildings, in which the main part of the structural elements is made of timber, and spatial stability is provided by reinforced concrete diaphragms or a stiffening core. A possible problem when using different materials in load-bearing structures is a significant difference in deformation characteristics and the effect of creep.","PeriodicalId":365885,"journal":{"name":"Modern structures of metal and wood","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132943519","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-01DOI: 10.31650/2707-3068-2022-26-44-54
A. Gilodo, G. Kolomiychuk, V.G. Kolomiychuk, A.M. Arsiriy
Mitigation of the effects of the explosion is in the spotlight due to the unstable geopolitical situation. Existing wooden structures are not designed to withstand an explosive load, and in areas of a possible attack, their sensitive elements require anti-explosive modernization. The search for rational constructive solutions for connections that can plastically deform and dissipate the energy of an explosion, while preserving the supporting frame from destruction, is an urgent problem.
{"title":"ANALYSIS OF STUDIES ON INCREASING THE EXPLOSION RESISTANCE OF CONNECTIONS IN WOODEN STRUCTURES","authors":"A. Gilodo, G. Kolomiychuk, V.G. Kolomiychuk, A.M. Arsiriy","doi":"10.31650/2707-3068-2022-26-44-54","DOIUrl":"https://doi.org/10.31650/2707-3068-2022-26-44-54","url":null,"abstract":"Mitigation of the effects of the explosion is in the spotlight due to the unstable geopolitical situation. Existing wooden structures are not designed to withstand an explosive load, and in areas of a possible attack, their sensitive elements require anti-explosive modernization. The search for rational constructive solutions for connections that can plastically deform and dissipate the energy of an explosion, while preserving the supporting frame from destruction, is an urgent problem.","PeriodicalId":365885,"journal":{"name":"Modern structures of metal and wood","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134171402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-01DOI: 10.31650/2707-3068-2022-26-135-144
S. Pichugin, A. Dmytrenko, K. Oksenenko
Metal capacities for the storage bulk materials are became widespread every year. The design of the steel spiral-fold silos and the peculiarities of the folding lock are considered in the article. The elements of the rigidity system of prefabricated metal silos from corrugated panels on bolted joints are given.
{"title":"EXPERIMENTAL STUDY OF STRUCTURE ELEMENTS OF METAL SPIRAL-FOLD SILOS","authors":"S. Pichugin, A. Dmytrenko, K. Oksenenko","doi":"10.31650/2707-3068-2022-26-135-144","DOIUrl":"https://doi.org/10.31650/2707-3068-2022-26-135-144","url":null,"abstract":"Metal capacities for the storage bulk materials are became widespread every year. The design of the steel spiral-fold silos and the peculiarities of the folding lock are considered in the article. The elements of the rigidity system of prefabricated metal silos from corrugated panels on bolted joints are given.","PeriodicalId":365885,"journal":{"name":"Modern structures of metal and wood","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126460974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-01DOI: 10.31650/2707-3068-2022-26-72-77
Yuliia Somina, O. Ahaieva
The aim of the article is an experimental research of the influence of low-cycle sign-constant loading, as well as the most significant design factors on the deformability of steel reinforcement of reinforced concrete beams. In this regard, for experimental research, the authors developed a four-factor three-level Boxing plan B4.
{"title":"DEFORMABILITY OF STEEL REINFORCEMENT UNDER THE ACTION OF CYCLIC LOADING","authors":"Yuliia Somina, O. Ahaieva","doi":"10.31650/2707-3068-2022-26-72-77","DOIUrl":"https://doi.org/10.31650/2707-3068-2022-26-72-77","url":null,"abstract":"The aim of the article is an experimental research of the influence of low-cycle sign-constant loading, as well as the most significant design factors on the deformability of steel reinforcement of reinforced concrete beams. In this regard, for experimental research, the authors developed a four-factor three-level Boxing plan B4.","PeriodicalId":365885,"journal":{"name":"Modern structures of metal and wood","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116256884","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-08-01DOI: 10.31650/2707-3068-2021-25-65-71
Y. Kupchenko, P. Singayevsky, O.V. Lesechko, P. Konstantinov
In the article, the authors consider one of the ways to solve the problem of reducing metal consumption and increasing the efficiency of metal structures by choosing an effective static scheme. The choice of the appropriate scheme is carried out for the most common elements of metal structures - beams, which also include roof purlins. To cover the industrial building of the seaport, discontinuous and continuous stringer systems are being developed and their efficiency is analyzed in terms of metal consumption and labor intensity.
{"title":"INCREASING THE EFFICIENCY OF THE ROOF PURLIN SYSTEM","authors":"Y. Kupchenko, P. Singayevsky, O.V. Lesechko, P. Konstantinov","doi":"10.31650/2707-3068-2021-25-65-71","DOIUrl":"https://doi.org/10.31650/2707-3068-2021-25-65-71","url":null,"abstract":"In the article, the authors consider one of the ways to solve the problem of reducing metal consumption and increasing the efficiency of metal structures by choosing an effective static scheme. The choice of the appropriate scheme is carried out for the most common elements of metal structures - beams, which also include roof purlins. To cover the industrial building of the seaport, discontinuous and continuous stringer systems are being developed and their efficiency is analyzed in terms of metal consumption and labor intensity.","PeriodicalId":365885,"journal":{"name":"Modern structures of metal and wood","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125360347","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-08-01DOI: 10.31650/2707-3068-2021-25-119-129
S. Romanenko, Y. Andriievska
Cold rolled steel structures have been known since the mid-19th century in the United States and Great Britain. Despite the advances in the development of cold-rolled structures, the level of their use was lower than that of hot-rolled structures. A significant factor that influenced this imbalance in application was the fact that there were no regulations. Into different countries of the world have their own national regulations for the calculation of cold-rolled steel structures, which have many controversies. In the European group includes the norms of the countries of the European Union, Great Britain, Hong Kong, Ukraine, Belarus, Kazakhstan; American group - the United States of America, Canada, Mexico, Australia, New Zealand, Brazil, Chile, Egypt. The regulations of such large countries as China, India and Russia have their own characteristics. The article presents the results of a technical survey of the load-bearing structures of the canopy. The survey was carried out to determine the bearing capacity of the roof load-bearing structures in relation to the location of the solar panels on the roof of the building. The construction of buildings and their structural parts from light steel thin-walled structures (profiles) is carried out in the form of light frames, the frames of which are successively connected into spatial systems. A new lightweight roof covering made of profiled sheet and a frame structure made of cold-rolled P-profile and C-profile elements for roofing and installation of solar panels are proposed. Such a coating is the most industrialized, easily and quickly erected. The analysis of constructive options for the effective placement of the profile of cold-rolled elements and joints of the frame and reinforced concrete run of the coating is carried out. The design of the frame was carried out in the software package " Лира САПР 2013" . The results of the work carried out served to draw up recommendations for restoring the properties of the load-bearing structures of the canopy, the development of design estimates and implementations into construction practice during the reconstruction of the canopy.
{"title":"TECHNICAL INSPECTION OF THE STRUCTURE AND DEVELOPMENT OF THE STRUCTURE OF FRAMES WITH COLD-ROLLED THIN-WALLED PROFILES","authors":"S. Romanenko, Y. Andriievska","doi":"10.31650/2707-3068-2021-25-119-129","DOIUrl":"https://doi.org/10.31650/2707-3068-2021-25-119-129","url":null,"abstract":"Cold rolled steel structures have been known since the mid-19th century in the United States and Great Britain. Despite the advances in the development of cold-rolled structures, the level of their use was lower than that of hot-rolled structures. A significant factor that influenced this imbalance in application was the fact that there were no regulations. Into different countries of the world have their own national regulations for the calculation of cold-rolled steel structures, which have many controversies. In the European group includes the norms of the countries of the European Union, Great Britain, Hong Kong, Ukraine, Belarus, Kazakhstan; American group - the United States of America, Canada, Mexico, Australia, New Zealand, Brazil, Chile, Egypt. The regulations of such large countries as China, India and Russia have their own characteristics. The article presents the results of a technical survey of the load-bearing structures of the canopy. The survey was carried out to determine the bearing capacity of the roof load-bearing structures in relation to the location of the solar panels on the roof of the building. The construction of buildings and their structural parts from light steel thin-walled structures (profiles) is carried out in the form of light frames, the frames of which are successively connected into spatial systems. A new lightweight roof covering made of profiled sheet and a frame structure made of cold-rolled P-profile and C-profile elements for roofing and installation of solar panels are proposed. Such a coating is the most industrialized, easily and quickly erected. The analysis of constructive options for the effective placement of the profile of cold-rolled elements and joints of the frame and reinforced concrete run of the coating is carried out. The design of the frame was carried out in the software package \" Лира САПР 2013\" . The results of the work carried out served to draw up recommendations for restoring the properties of the load-bearing structures of the canopy, the development of design estimates and implementations into construction practice during the reconstruction of the canopy.","PeriodicalId":365885,"journal":{"name":"Modern structures of metal and wood","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134425108","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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