bzhbБетон и железобетонConcrete and Reinforced Concrete0005-98893034-1302АО «НИЦ «Строительство»10.31659/0005-9889-2022-612-613-4-5-66-71bzhb-91Research ArticleСтатьиУчет работы сжатой композитной полимерной арма- туры при расчете прочности сжатых элементов по деформационной моделиTaking into account the operation of compressed composite polymer reinforcement when calculating the strength of compressed elements according to the deformation modelМухамедиевТ. А.MukhamedievT. A.

д-р техн. наук, главный научный сотрудник

e-mail: takhir50@rambler.ru

Doctor of Sciences (Engineering), Chief Researcher

e-mail: takhir50@rambler.ru 

takhir50@rambler.ruМайоровС. А.MaiorovS. A.

ведущий инженер

e-mail: maiorov.st@gmail.com 

Lead Engineer

e-mail: maiorov.st@gmail.com 

maiorov.st@gmail.comНаучно-исследовательский, проектно-конструкторский и технологический институт бетона и железобетона (НИИЖБ) им. А.А. Гвоздева АО «НИЦ «Строительство»РоссияResearch Institute of Concrete and Reinforced Concrete (NIIZHB) named after A.A. Gvozdev, JSC Research Center of ConstructionRussian Federation202219092023612-6134-56671Copyright © Мухамедиев Т.А., Майоров С.А., 20232023Мухамедиев Т.А., Майоров С.А.Mukhamediev T.A., Maiorov S.A.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.bzhb.ru/jour/article/view/91

Изложена методика расчета прочности сжатых элементов по деформационной модели с учетом работы сжатой композитной полимерной арматуры. Предложены критерии прочности нормального сечения сжатого элемента при расчете по деформационной модели с использованием кусочно-линейных и криволинейных диаграмм осевого сжатия бетона. Приведено сопоставление результатов расчета прочности опытных образцов по деформационной модели с опытными данными и с результатами расчетов по методу предельных усилий. Показано, что предложенная методика расчета внецентренно сжатых элементов с учетом работы композитной арматуры при сжатии приводит к удовлетворительной сходимости с опытными данными при использовании как кусочно-линейной, так и криволинейной диаграмм осевого сжатия бетона. Сопоставлением результатов расчета прочности рассмотренной выборки опытных внецентренно сжатых образцов, выполненных по деформационной модели с использованием криволинейной диаграммы и методом предельных усилий, установлено их удовлетворительное совпадение.

The method of calculating the strength of compressed elements according to the deformation model, taking into account the operation of compressed composite polymer reinforcement, is described. The criteria for the strength of the normal section of the compressed element are proposed when calculating according to the deformation model using piecewise-linear and curved diagrams of axial compression of concrete. The comparison of the results of calculating the strength of prototypes according to the deformation model with experimental data and with the results of calculations using the method of limiting forces is given. It is shown that the proposed method for calculating eccentrically compressed elements, taking into account the work of composite reinforcement in compression, leads to satisfactory convergence with experimental data when using both piecewise linear and a curvilinear diagrams of the axial compression of concrete. By comparing the strength calculation results of the considered sample of experimental non-centrally compressed samples made according to the deformation model using a curved diagram and the method of limiting forces, their satisfactory coincidence was established.

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