concconcЖелезобетонные конструкцииReinforced concrete structures2949-16222949-1614Национальный исследовательский Московский государственный строительный университет10.22227/2949-1622.2025.1.18-25concconc-67Research ArticleТЕОРИЯ БЕТОНА И ЖЕЛЕЗОБЕТОНАTHEORY OF CONCRETE AND REINFORCED CONCRETEЧисленно-экспериментальные исследования преднапряженных сталебетонных балокNumerical and Experimental Investigations of Prestressed Steel-Concrete Beamshttps://orcid.org/0000-0002-3563-2994ЗамалиевФ. С.ZamalievF. S.

Фарит Сахапович Замалиев, к.т.н., доцент кафедры Металлических конструкций и испытания сооружений

420043, г. Казань, ул. Зеленая, д. 1

Farit S. Zamaliev, Candidate of Technical Sciences, Professor, Associate Professor, Department of Metal Structures and Testing of Structures

1 Zelenaya St., Kazan, 420043

zamaliev49@mail.ruФилипповД. Ю.FilippovD. Yu.

Денис Юрьевич Филиппов, аспирант кафедры Металлических конструкций и испытания сооружений

420043, г. Казань, ул. Зеленая, д. 1

Denis Yu. Filippov, Graduate student Department of Metal Structures and Testing of Structures

1 Zelenaya St., Kazan, 420043

zamaliev49@mail.ruКазанский государственный архитектурно-строительный университет (КГАСУ)РоссияKazan State University of Architecture and Civil Engineering (KSUACE)Russian Federation202531032025911825Copyright © Замалиев Ф.С., Филиппов Д.Ю., 20252025Замалиев Ф.С., Филиппов Д.Ю.Zamaliev F.S., Filippov D.Y.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.g-b-k.ru/jour/article/view/67

Идея преднапряжения в железобетонных конструкциях достаточно широко применяется. Особенности напряженно-деформированного состояния преднапряженных железобетонных элементов изложены во многих научных статьях, разработаны рекомендации по способам преднапряжения. Использование преднапряжения в сталебетонных конструкциях достаточно новое явление. В СП 266.1325800.2016 по преднапряжению сталежелезобетонных конструкций рекомендации отсутствуют.

Цель исследования — оценка влияния предварительного напряжения на напряженно-деформированное состояние сталебетонных балок. Применение предварительного напряжения в сталебетонных балках позволяет оптимизировать их материалоемкость. Приведены методика и результаты численных исследований на основе компьютерного моделирования. Проведены экспериментальные исследования сталебетонных балок. Дан анализ результатов натурных испытаний и сравнение их с данными численных экспериментов.

The idea of prestressing in reinforced concrete structures is widely used. Peculiarities of stress-strain state of prestressed reinforced concrete elements are described in many scientific articles, recommendations on prestressing methods are developed. The use of prestressing in steel-concrete structures is quite a new phenomenon. In SP 266.1325800.2016 there are no recommendations on prestressing of steel-reinforced concrete structures.

The aim of the study is to evaluate the effect of prestressing on the stress-strain state of steel-concrete beams.

Application of prestressing in steel-concrete beams allows to optimize their material intensity. The methodology and results of numerical investigations on the basis of computer modeling are given. Experimental studies of steel-concrete beams are carried out. The results of full-scale tests are analyzed and compared with the data of numerical experiments.

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