mgssuvestВестник МГСУVestnik MGSU1997-09352304-6600Moscow State University of Civil Engineering (National Research University) (MGSU)10.22227/1997-0935.2025.2.215-230mgssuvest-519Research ArticleПроектирование и конструирование строительных систем. Строительная механика. Основания и фундаменты, подземные сооруженияConstruction system design and layout planning. Construction mechanics. Bases and foundations, underground structuresПрочность и деформативность складчатых элементов из текстильно-армированного бетонаStrength and deformability of folded elements made of textile-reinforced concreteДонцоваА. Е.DontsovaA. E.

Анна Евгеньевна Донцова — ассистент Высшей школы гидротехнического и энергетического строительства Инженерно-строительного института

195251, г. Санкт-Петербург, ул. Политехническая, д. 29, литера Б

Anna E. Dontsova — Assistant of the Higher School of Hydraulic and Power Engineering of the Civil Engineering Institute

29 litera B, Polytechnicheskaya st., Saint-Petersburg, 195251

anne.dontsoova@ya.ruСтоляровО. Н.StolyarovO. N.

Олег Николаевич Столяров — доктор технических наук, доцент Высшей школы гидротехнического и энергетического строительства Инженерно-строительного института

195251, г. Санкт-Петербург, ул. Политехническая, д. 29, литера Б

Oleg N. Stolyarov — Doctor of Technical Sciences, Associate Professor of the Higher School of Hydraulic and Power Engineering of the Civil Engineering Institute

29 litera B, Polytechnicheskaya st., Saint-Petersburg, 195251

stolyarov_on@spbstu.ruСанкт-Петербургский политехнический университет Петра Великого (СПбПУ)РоссияPeter the Great St.Petersburg Polytechnic University (SPbPU)Russian Federation202528022025202215230Copyright © Донцова А.Е., Столяров О.Н., 20252025Донцова А.Е., Столяров О.Н.Dontsova A.E., Stolyarov O.N.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.vestnikmgsu.ru/jour/article/view/519Введение

Введение. Исследуется поведение складчатых элементов из текстильно-армированного бетона при нагружении. Текстильно-армированный бетон — относительно новый строительный материал, привлекающий все больший интерес исследователей. Поскольку плоские конструкции из текстильно-армированного бетона являются тонкими в сечении, они не подходят для покрытия пролетных зданий и сооружений. Однако при этом текстильно-армированный бетон хорошо подходит для изготовления складчатых покрытий, аналогичных покрытиям из армоцемента. Цель исследования — изу-чение прочностных свойств поперечных сечений складок из текстильно-армированного бетона под нагрузкой.

Материалы и методы

Материалы и методы. В рамках работы запроектированы, изготовлены и испытаны опытные образцы складок из текстильно-армированного бетона с армированием основовязаными сетками из щелочестойких стеклянных волокон (AR) и углеродных волокон (C). По результатам испытаний проведено сравнение свойств складок в зависимости от их формы (треугольная или трапецеидальная) и типа армирования.

Результаты

Результаты. Средняя разрушающая нагрузка для треугольных складок составила 5,9 кН для неармированных образцов, 4,8 кН для образцов, армированных AR-ровингами, и 3,6 кН для образцов, армированных C-ровингами. Для трапецеидальных складок средняя разрушающая нагрузка — 8,0 кН для неармированных образцов, 8,7 кН для AR-армирования и 10,7 кН для C-армирования. Средняя прочность мелкозернистого бетона на сжатие — 25,08 МПа. Прочность элементов складок на изгиб — 7,29 МПа для неармированных образцов, 9,33 МПа для AR-армированных образцов и 15,4 МПа для C-армированных образцов.

Выводы

Выводы. Существующей в настоящее время нормативной базы недостаточно для широкого применения изделий из текстильно-армированного бетона в строительстве. На сегодняшний день имеются разрозненные экспериментальные и теоретические наработки по механическим свойствам материала и поведению конструкций из текстильно-армированного бетона под нагрузкой. Приведены экспериментальные сведения о поведении складчатых элементов из текстильно-армированного бетона под нагружением.

Introduction

Introduction. The behaviour of folded elements made of textile-reinforced concrete under loading is investigated. Textile-reinforced concrete is a relatively new building material that is attracting increasing interest from researchers. Because the elements of textile-reinforced concrete are thin in cross section, they cannot cover large-span buildings. However, textile-reinforced concrete is well suited for the production of folded shells, as in the case of ferrocement. The aim of this study is to investigate the strength of textile-reinforced concrete folds under loading.

Materials and methods

Materials and methods. Textile-reinforced concrete folded specimens were manufactured. Warp-knitted meshes made of alkali-resistant glass fibres (AR) and carbon fibres (C) were used to reinforce the elements. The specimens were tested. Based on the test results, a comparison of the fold properties was performed depending on their shape (triangular or trapezoidal) and type of reinforcement.

Results

Results. The average failure load for the triangular folds was 5.9 kN for nonreinforced specimens, 4.8 kN for specimens reinforced with AR rovings, and 3.6 kN for specimens reinforced with C rovings. For the trapezoidal folds, the average failure load was 8.0 kN for nonreinforced specimens, 8.7 kN for AR reinforcement, and 10.7 kN for C reinforcement. The average compressive strength of fine-grain concrete was 25.08 MPa. The flexural strength of the fold elements was 7.29 MPa for nonreinforced specimens, 9.33 MPa for AR-reinforced specimens, and 15.4 MPa for C-reinforced specimens.

Conclusions

Conclusions. The currently existing regulatory framework is insufficient for wide application of textile-reinforced concrete products in construction. To date, there are scattered experimental and theoretical studies on the mechanical properties of the material and the behaviour of structures made of textile-reinforced concrete under loading. Experimental data on the behaviour of folded elements made of textile-reinforced concrete under loading are presented.

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The authors declare that there are no conflicts of interest present.