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NUMERICAL SIMULATION OF STRESS-STRAIN STATE OF MAIN PIPELINES AT TRANSITIONS AND EXPANSION JOINTS AREAS UNDER COMPLEX LOADING

NUMERICAL SIMULATION OF STRESS-STRAIN STATE OF MAIN PIPELINES AT TRANSITIONS AND EXPANSION JOINTS AREAS UNDER COMPLEX LOADING

Abstract

The paper studies the stress-strain state, strength, and stability of trunk pipeline structures in transition and expansion joint areas using numerical simulation. For this purpose, proprietary software was developed using a modified direct method and the LIRA software complex. The study was carried out under complex loading conditions, including temperature effects, internal pressure, and external loads. A comprehensive building model based on BIM technologies was created, which is used for further adoption of optimal design solutions and significantly accelerates design work. The results of a numerical study of a complex spatial model and conclusions about the strength characteristics of pipelines significantly expand the possibilities for making design decisions and creating promising developments based on them.

Приведено основні ідеї та можливості чисельного моделювання, дослідження та аналізу напружено-деформованого стану, міцності та стійкості споруд магістральних трубопроводів в місцях переходів та компенсаторів за допомогою власного програмного забезпечення з використанням модифікованого методу прямих та розрахункового програмного комплексу LIRA від дії комплексного навантаження. Створена комплексна модель споруди на основі ВІМ технологій використовується для подальшого прийняття оптимальних проєктних рішень і значно прискорює проєктні роботи. Результати чисельного дослідження комплексної просторової моделі та висновків про міцністні характеристики трубопроводів значно розширюють можливості в прийнятті проєктних рішень та створенні перспективних розробок на їх основі.

Keywords

магістральні трубопроводи, trunk pipelines, комп’ютерне моделювання, міцність, modified direct method, комплексні чисельні просторові моделі, stability, оптимальний варіант проєкту, модифікований метод прямих, напружено- деформований стан, complex numerical spatial models, ВІМ технології, стійкість, переходи та компенсатори, computer simulation, transitions and expansion joints, stress-strain state, strength, BIM technologies, optimal design option

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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