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Bulletin of Science and Research Center “Stroitelstvo”最新文献

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APPLICATION ISSUES OF EUROCODES IN BUILDING DESIGN IN THE RUSSIAN FEDERATION 欧洲规范在俄罗斯联邦建筑设计中的应用问题
Bulletin of Science and Research Center “Stroitelstvo” Pub Date : 2021-08-31 DOI: 10.37538/2224-9494-2021-3(30)-117-123
V. Travush, Y. Volkov
{"title":"APPLICATION ISSUES OF EUROCODES \u0000IN BUILDING DESIGN \u0000IN THE RUSSIAN FEDERATION","authors":"V. Travush, Y. Volkov","doi":"10.37538/2224-9494-2021-3(30)-117-123","DOIUrl":"https://doi.org/10.37538/2224-9494-2021-3(30)-117-123","url":null,"abstract":"With the development and simplification \u0000of The article describes the application of \u0000European norms in the domestic practice for \u0000the design of reinforced concrete structures \u0000using European norms Eurocode-2. For \u0000Eurocode-2, the number of nationally defined \u0000parameters is more than a hundred. These \u0000are different coefficients, shrinkage, creep \u0000of concrete, thickness of protective layers \u0000of concrete for steel fittings depending on \u0000the type, environment of operation, etc. \u0000Differ in the SNIP on the design of designs \u0000and individual Eurocodes, the size and \u0000shape of the samples tested to determine \u0000the strength (regulatory) characteristics \u0000of building materials, making it impossible \u0000to apply many of the calculation formulas \u0000directly. Addressing these issues is a rather \u0000capacious task. Many series of prototypes \u0000will be required only to determine statistically \u0000reliable transitional coefficients for the \u0000strength of the materials used in SNIP and \u0000Eurocodes.","PeriodicalId":332973,"journal":{"name":"Bulletin of Science and Research Center “Stroitelstvo”","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131274680","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}
引用次数: 0
STUDY OF FROST RESISTANCE OF CONCRETE IN ORDER TO ADJUST THE STANDARD GOST 10060-2012 研究混凝土的抗冻性，以调整标准gost 10060-2012
Bulletin of Science and Research Center “Stroitelstvo” Pub Date : 2021-08-31 DOI: 10.37538/2224-9494-2021-3(30)-78-87
V. Stepanova, G. Chehniy, I. Parshina, Sergey Orehov
{"title":"STUDY OF FROST RESISTANCE OF CONCRETE \u0000IN ORDER TO ADJUST THE STANDARD \u0000GOST 10060-2012","authors":"V. Stepanova, G. Chehniy, I. Parshina, Sergey Orehov","doi":"10.37538/2224-9494-2021-3(30)-78-87","DOIUrl":"https://doi.org/10.37538/2224-9494-2021-3(30)-78-87","url":null,"abstract":"Experience in applying the standard 10060- \u00002012 ‘Concrete. Methods for determining \u0000frost resistance’ shows the need to adjust the \u0000methods for determining frost resistance of \u0000concrete. Based on the performed by NIIZНB \u0000named after A.A. Gvozdev of research on frost \u0000resistance of concrete by the third accelerated \u0000method of GOST 10060, experimental \u0000data were obtained to clarify the freeze-thaw \u0000regime of concrete samples and the criterion \u0000for evaluating frost resistance by ultrasound \u0000speed.","PeriodicalId":332973,"journal":{"name":"Bulletin of Science and Research Center “Stroitelstvo”","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124778094","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}
引用次数: 2
EXPERIMENTAL STUDIES OF THE FATIGUE STRENGTH OF A500 CLASS REINFORCEMENT WITH VARIOUS TYPES OF PERIODIC PROFILE 不同周期型态a500级钢筋疲劳强度的试验研究
Bulletin of Science and Research Center “Stroitelstvo” Pub Date : 2021-08-31 DOI: 10.37538/2224-9494-2021-3(30)-100-107
V. Terin, Dmitry Klimov, A. Kvasnikov
{"title":"EXPERIMENTAL STUDIES OF THE FATIGUE \u0000STRENGTH OF A500 CLASS REINFORCEMENT \u0000WITH VARIOUS TYPES OF PERIODIC PROFILE","authors":"V. Terin, Dmitry Klimov, A. Kvasnikov","doi":"10.37538/2224-9494-2021-3(30)-100-107","DOIUrl":"https://doi.org/10.37538/2224-9494-2021-3(30)-100-107","url":null,"abstract":"The article presents the results of studies \u0000of the fatigue strength of A500 class \u0000reinforcement by GOST 34028-2016 with \u0000various types of periodic profile. The data on the \u0000results of previously conducted experimental \u0000studies of the fatigue strength of various \u0000types of reinforcement are generalized and \u0000systematized, and the main factors affecting \u0000fatigue are established. Experimental data \u0000on strength and deformation characteristics \u0000under static and high-cycle loads of A500C \u0000class reinforcement with various types of \u0000periodic profile have been obtained. Based \u0000on the research results, proposals were \u0000made to improve the characteristics of the \u0000reinforcement and the periodic profile to \u0000increase its resistance to repeated cyclic \u0000loads and to amend the current regulatory \u0000documents. \u0000Вестник НИЦ «Строительство» • 3(30)2021 \u0000101 \u0000Ключевые слова: \u0000Арматура, периодический профиль арма- \u0000туры, предел выносливости, усталостная \u0000прочность","PeriodicalId":332973,"journal":{"name":"Bulletin of Science and Research Center “Stroitelstvo”","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116667344","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}
引用次数: 0
ACCOUNTING FOR THE INFLUENCE OF HUMIDITY PROPERTIES OF AUTOCLAVE- CURED CELLULAR CONCRETE IN THE DESIGN AND CONSTRUCTION OF ENCLOSING STRUCTURES 在围护结构设计和施工中考虑蒸压养护泡沫混凝土湿度特性的影响
Bulletin of Science and Research Center “Stroitelstvo” Pub Date : 2021-08-31 DOI: 10.37538/2224-9494-2021-3(30)-88-99
V. Strotskiy, A. Krokhin, V. Savin
{"title":"ACCOUNTING FOR THE INFLUENCE \u0000OF HUMIDITY PROPERTIES OF AUTOCLAVE- \u0000CURED CELLULAR CONCRETE \u0000IN THE DESIGN AND CONSTRUCTION \u0000OF ENCLOSING STRUCTURES","authors":"V. Strotskiy, A. Krokhin, V. Savin","doi":"10.37538/2224-9494-2021-3(30)-88-99","DOIUrl":"https://doi.org/10.37538/2224-9494-2021-3(30)-88-99","url":null,"abstract":"The results of studies of porosity, water \u0000absorption, moisture shrinkage and frost \u0000resistance of cellular concrete, which are some \u0000of the main factors determining the durability \u0000of cellular concrete enclosing structures \u0000manufactured using autoclave hardening \u0000technology, are considered. \u0000Methods for determining water absorption, \u0000moisture shrinkage and frost resistance are \u0000presented. The relationship between the \u0000moisture shrinkage and the capillary forces \u0000(the sum of the surface tension forces on the \u0000micromeniscs of liquid in the capillaries of \u0000cellular concrete), as well as the dependence \u0000of the shrinkage on the size (radius) of the \u0000capillary and gas pores of cellular concreteand on the water-solid ratio (W/S-factor) of \u0000cellular concrete, is established. \u0000In the field of frost resistance of cellular \u0000concrete, the relationship between the \u0000structure of the pore space of concrete \u0000and its deformation characteristics under \u0000the action of negative temperatures is studied. \u0000The effect of the presence of gas pores in \u0000cellular concrete on the reduction of frost \u0000expansion deformations is described.","PeriodicalId":332973,"journal":{"name":"Bulletin of Science and Research Center “Stroitelstvo”","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133486416","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}
引用次数: 0
SCIENCE AS A SOCIAL PHENOMENON AND TRENDS IN THE DEVELOPMENT OF SCIENCE IN THE MODERN WORLD 科学作为一种社会现象，是现代世界科学发展的趋势
Bulletin of Science and Research Center “Stroitelstvo” Pub Date : 2021-08-31 DOI: 10.37538/2224-9494-2021-3(30)-124-133
A. Fedorkina
{"title":"SCIENCE AS A SOCIAL PHENOMENON AND TRENDS IN THE DEVELOPMENT OF SCIENCE IN THE MODERN WORLD","authors":"A. Fedorkina","doi":"10.37538/2224-9494-2021-3(30)-124-133","DOIUrl":"https://doi.org/10.37538/2224-9494-2021-3(30)-124-133","url":null,"abstract":"The article is devoted to understanding the \u0000place, role and functions of science in the \u0000modern world. The author analyzes the process \u0000of development of science from the initial \u0000individual forms of organization of scientific \u0000activity to its transformation into a social institution. \u0000The specifics of the process of cognitive \u0000and social institutionalization of science are \u0000considered. The main conditions for the development \u0000of science in the status of a social \u0000institution are revealed. The close connection \u0000of science with political, economic and social \u0000institutions and also the possibility of its development \u0000with the state regulation are shown.","PeriodicalId":332973,"journal":{"name":"Bulletin of Science and Research Center “Stroitelstvo”","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121773887","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}
引用次数: 0
DEVELOPMENT OF A NATIONAL STANDARD FOR TESTING METHODS FOR SELF-COMPACTING CONCRETE MIXTURE 制定自密实混凝土混合料试验方法国家标准
Bulletin of Science and Research Center “Stroitelstvo” Pub Date : 2021-08-31 DOI: 10.37538/2224-9494-2021-3(30)-108-116
L. Titova, M. Beylina, Vladimir Khlopuk, V. Shabalin
{"title":"DEVELOPMENT OF A NATIONAL STANDARD \u0000FOR TESTING METHODS \u0000FOR SELF-COMPACTING CONCRETE MIXTURE","authors":"L. Titova, M. Beylina, Vladimir Khlopuk, V. Shabalin","doi":"10.37538/2224-9494-2021-3(30)-108-116","DOIUrl":"https://doi.org/10.37538/2224-9494-2021-3(30)-108-116","url":null,"abstract":"In world practice, self-compacting concrete is \u0000increasingly used due to its unique properties \u0000and advantages. Self-compacting concrete \u0000mixtures have high ductility, better fluidity, \u0000high density with low water content due to the \u0000use of special effective mineral and chemical \u0000additives that provide high performance for \u0000concrete. The rheological properties of SCC \u0000differ significantly from those of conventional \u0000concrete. In this regard, when designing the \u0000composition of concrete and controlling its \u0000quality in laboratory and production conditions, \u0000several methods for controlling the quality of a \u0000self-compacting concrete mixture were created. \u0000The purpose of this standard was to create \u0000a single regulatory document regulating the \u0000assessment of the quality of a self-compacting \u0000concrete mixture. \u0000Concrete from a self-compacting mixture can \u0000be used for underground and hydrotechnical \u0000construction for the erection of structures of \u0000large length, complex geometric shape and \u0000densely reinforced structures.","PeriodicalId":332973,"journal":{"name":"Bulletin of Science and Research Center “Stroitelstvo”","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123544942","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}
引用次数: 0
EVALUATION OF THE QUALITY OF REINFORCING IMPREGNATION OF CONCRETE SURFACES В. В. 混凝土表面钢筋浸渍质量评价В。В。
Bulletin of Science and Research Center “Stroitelstvo” Pub Date : 2021-08-30 DOI: 10.37538//2224-9494-2021-3(30)-56-65
V. Remnev, L. Kosheleva, D. Ryazantsev
{"title":"EVALUATION OF THE QUALITY OF REINFORCING \u0000IMPREGNATION OF CONCRETE SURFACES \u0000В. В.","authors":"V. Remnev, L. Kosheleva, D. Ryazantsev","doi":"10.37538//2224-9494-2021-3(30)-56-65","DOIUrl":"https://doi.org/10.37538//2224-9494-2021-3(30)-56-65","url":null,"abstract":"The impregnating compositions for increasing \u0000the strength of concrete surfaces are \u0000analyzed, standard methods for testing the \u0000physical and mechanical properties of concrete \u0000after its impregnation are considered. The \u0000need for a uniform classifier and methodology \u0000for assessing the quality of impregnation of \u0000concrete with various reinforcing materials \u0000has been pointed out.","PeriodicalId":332973,"journal":{"name":"Bulletin of Science and Research Center “Stroitelstvo”","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128791344","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}
引用次数: 0
NEW NATIONAL STANDARD FOR SELF-COMPACTING CONCRETE MIXES 自密实混凝土配合比新国家标准
Bulletin of Science and Research Center “Stroitelstvo” Pub Date : 2021-08-30 DOI: 10.37538/2224-9494-2021-3(30)-30-40
S. S. Kaprielov, A. Sheynfeld, I. Arzumanov, I. Chilin
{"title":"NEW NATIONAL STANDARD \u0000FOR SELF-COMPACTING CONCRETE MIXES","authors":"S. S. Kaprielov, A. Sheynfeld, I. Arzumanov, I. Chilin","doi":"10.37538/2224-9494-2021-3(30)-30-40","DOIUrl":"https://doi.org/10.37538/2224-9494-2021-3(30)-30-40","url":null,"abstract":"The information about the new national standard GOST R «Self-compacting concrete mixtures. Specifications», developed by the «Research Institute for Concrete and Reinforced Concrete» named after A.A. Gvozdev, of JSC «Research Center of Construction», is presented. The standard applies to ready-to-use selfcompacting concrete mixtures of heavyweight, fine-grained, light-weight and reactive powder concretes, as well as fiber reinforced concretes, for the production of monolithic or precast concrete structures and products, the shape and reinforcement of which makes it difficult to place and compaction of an ordinary concrete mixture. The standard establishes new terms and definitions, types and designations, uniform requirements for new technological characteristics (slump-flow, segregation, viscosity and flowability), acceptance rules and test methods, production and transportation processes, control and evaluation procedures conformity of quality indicators of self-compacting concrete mixes.","PeriodicalId":332973,"journal":{"name":"Bulletin of Science and Research Center “Stroitelstvo”","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129359268","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}
引用次数: 1
EXPERIENCE IN USING ULTRA HIGH PERFORMANCE FIBER REINFORCED CONCRETE ELEMENTS 有使用超高性能纤维增强混凝土构件的经验
Bulletin of Science and Research Center “Stroitelstvo” Pub Date : 2021-08-30 DOI: 10.37538/2224-9494-2021-3(30)-41-50
Maxim Marchenko, I. Chilin, N. Selyutin
{"title":"EXPERIENCE IN USING ULTRA HIGH \u0000PERFORMANCE FIBER REINFORCED \u0000CONCRETE ELEMENTS","authors":"Maxim Marchenko, I. Chilin, N. Selyutin","doi":"10.37538/2224-9494-2021-3(30)-41-50","DOIUrl":"https://doi.org/10.37538/2224-9494-2021-3(30)-41-50","url":null,"abstract":"The article presents examples of the use of \u0000ultra-high performance fiber reinforced concrete \u0000for load-bearing structures in Russia. \u0000Using this material with limits of compressive \u0000strength 150 MPa, flexural tensile strength \u000021 MPa, tensile strength 8.5 MPa, external \u0000post-tensioned structures of bridges and tanks \u0000are made instead of common solution with the \u0000steel anchors. \u0000Full-scale tests of anchors were carried out, \u0000which did not reveal signs of deformations and \u0000destruction of elements during the tension of \u0000strands, at the level of design and ultimate \u0000loads - before strands rupture. \u0000It was concluded that it is advisable to replace \u0000steel anchors with anchors from the \u0000material, which, with high strength characteristics, \u0000has ultra-low permeability and high \u0000frost resistance corresponding to the F21000 class. The estimated economic effect of such a replacement is determined by the reduced \u0000cost of these elements of structures made \u0000of ultra-high performance fiber reinforced \u0000concrete in comparison with steel.","PeriodicalId":332973,"journal":{"name":"Bulletin of Science and Research Center “Stroitelstvo”","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128665911","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}
引用次数: 0
PRECAST SHELLS MADE OF UNITS BENT DURING FORMING 由在成形过程中弯曲的单元制成的预制壳体
Bulletin of Science and Research Center “Stroitelstvo” Pub Date : 2021-08-30 DOI: 10.37538/2224-9494-2021-3(30)-66-77
B. Sokolov, V. Titaev, D. Paskhin
{"title":"PRECAST SHELLS MADE OF UNITS BENT \u0000DURING FORMING","authors":"B. Sokolov, V. Titaev, D. Paskhin","doi":"10.37538/2224-9494-2021-3(30)-66-77","DOIUrl":"https://doi.org/10.37538/2224-9494-2021-3(30)-66-77","url":null,"abstract":"In construction, thin-walled reinforced \u0000concrete spatial structures are used both \u0000for unique roofs of large-span buildings and \u0000for mass buildings of the pavilion type and \u0000small architectural forms. The most serious \u0000obstacle to the widespread application of \u0000economical thin-walled reinforced concrete \u0000structures is the shortcomings of the technology \u0000used for the manufacture and installation \u0000of prefabricated shell elements. The \u0000method of bending just formed flat flexible \u0000plates to give them a curved shape is one \u0000of the most promising technological methods \u0000that allow you to abandon the use of \u0000expensive metal forms of complex curved \u0000outlines, significantly simplify all production \u0000processes. \u0000The article describes the experience of \u0000research and development of structural decisions \u0000for spatial structures of building roofs \u0000with the use of unified rhombic elements \u0000made by the method of bending a flat just \u0000formed sheet on a flexible formwork.","PeriodicalId":332973,"journal":{"name":"Bulletin of Science and Research Center “Stroitelstvo”","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129859396","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}
引用次数: 0
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