bricstransportТранспорт БРИКСBRIСS Transport2949-0812ФГБУ ДПО «УМЦ ЖДТ»10.46684/2023.1.3bricstransport-8Research ArticleУРБАНИСТИКА, ТРАНСПОРТНЫЕ И ЛОГИСТИЧЕСКИЕ ТЕХНОЛОГИИURBAN STUDIES, TRANSPORT AND LOGISTICS TECHNOLOGIESВыбор и обоснование методики расчета трамвайного пути на прочностьFeasibility study of calculation methods for tram track stiffnessДудкинЕ. П.DudkinE. P.

 Санкт-Петербург 

AuthorID: 315631

Evgeny P. Dudkin — Dr. Sci. (Eng.), Professor of the Department of  “Construction of Roads of the Transport Complex”

9 Moskovsky pr., St. Petersburg, 190031, Russian Federation 

ed@pgups-tempus.ruМохсинА. Х.А.MohsinA. H.A.

 Санкт-Петербург 

 г. Наджаф, Республика Ирак

 

Abujwaid Husam Abbas Mohsin — postgraduate student of the Department “Construction of Roads of Transport Complex”; manager and owner of a construction company

9 Moskovsky pr., St. Petersburg, 190031, Russian Federation 

45 Kufa-Najaf ave., Najaf, 54001, Republic of Iraq

husamalkafai@gmail.comСултановН. Н.SultanovN. N.

 Санкт-Петербург 

Nariman N. Sultanov — Cand. Sci. (Eng.), Associate Professor of the Department of “Construction of Roads of the Transport Complex” 

9 Moskovsky pr., St. Petersburg, 190031, Russian Federation 

79216330895@yandex.euПетербургский государственный университет путей сообщения Императора Александра I (ПГУПС)РоссияEmperor Alexander I St. Petersburg State Transport University (PSTU)Russian FederationПетербургский государственный университет путей сообщения Императора Александра I (ПГУПС); Генеральная подрядная компания Анвара Аль ДургемаРоссияEmperor Alexander I St. Petersburg State Transport University (PSTU); Anwar Al Durgham General Contracting CompanyRussian Federation202314042023218Copyright © Дудкин Е.П., Мохсин А.Х., Султанов Н.Н., 20232023Дудкин Е.П., Мохсин А.Х., Султанов Н.Н.Dudkin E.P., Mohsin A.H., Sultanov N.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.bricstransport.ru/jour/article/view/8

Строительство современных трамвайных линий и создание новых конструкций требуют обоснования методов расчета на прочность. Приведена методика расчета конструкции трамвайного пути на прочность при условии применения в ней систем шумо- и виброизоляции. Теоретический анализ влияния систем изоляции рельса на схему передачи нагрузки от трамвая на плиту показал возможные варианты и позволил выявить факторы, от которых эта схема зависит. Полученная новая расчетная схема дает возможность спрогнозировать распределение нагрузок на поверхность несущего основания. В зависимости от механических характеристик вкладышей определены варианты распределения нагрузки от рельса на плиту. Расчет плиты на прочность выполнен по трем схемам, как: дорожной одежды жесткого типа, мостовой конструкции и фундаментной плиты. Расчет трамвайной конструкции как фундаментной плиты дает возможность максимально точно учесть конструктив плиты (армирование), а расчет как дорожной одежды — учесть планируемый срок эксплуатации и интенсивность движения трамваев по исследуемому участку.Полевые испытания продемонстрировали лучшую сходимость теоретических и опытных данных при расчете плиты как фундаментной. Благодаря анализу методов расчета предложили новую методику расчета несущей плиты трамвайного пути на прочность, которая учитывает планируемый срок эксплуатации, интенсивность движения трамваев и ряд других факторов.

Nowadays, design and construction of new urban tramlines require feasibility study of calculation methods for stiffness. A calculation method for tram track stiffness with noise and vibration insulation systems has been developed in this paper. Theoretical analysis of the impact of rail insulation systems on tram-to-slab load transfer has revealed the potential options and factors influencing the choice of a system. The new design method obtained makes it possible to predict the distribution of loads on the load-bearing foundation surface. Different variants of rail/slab load distribution have been determined depending on the mechanical characteristics of rail profiles. Tram track slab stiffness has been calculated for three design models such as rigid surface pavement, bridge structure and foundation slab. The design of the tram track as foundation slab allows calculating slab reinforcement as accurately as possible because the surface pavement takes into account the planned service life and tram flow density in the area under survey.Field experiments have demonstrated a better convergence of theoretical and experimental data when designing the slab as foundation. As a result, a new method for calculating the foundation slab stiffness of a tram track has been proposed taking into account planned service life, tram flow density and other factors.

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