Three-Arch, Three-Cable Face Steel-Sided Rigid Tie Composite Arch Bridge

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This essay proposes a new structural system for a large span three-arch, three-cable face steel edge main beamrigid tie composite arch bridge. The authors invented a new structural form of a steel edge main girder rigid tie, and developed and designed a key arch-bar three-dimensional six-way space node structure. The analysis of results show that: compared with the traditional arch bridge, the large span three-arch three-cable face steel-sided main beam rigid ties composite arch bridgeis beautiful in shape, hasareasonable structure and efficient construction. It is a high-strength, high-performance composite structural system, with better strength, stiffness, stability and dynamic performance, which overcomes the large span ultra-wide bridge deck arch bridge horizontal thrust, poor transverse stability, and the key technical problems of acable joint control. The proposed structural form has a wide range of engineering application prospects.

Arch Bridge; Composite structure; Reasonable axis of arch; Steel edge main beam; Rigid ties; High-performance structural system

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Короткий адрес: https://sciup.org/142234647

IDS: 142234647   |   УДК: 691   |   DOI: 10.15828/2075-8545-2022-14-4-328-338

Трехарочный трехканатный торцевой стальной балочный композитный арочный мост жесткого типа

В статье предлагается новая конструктивная система для крупнопролетного трехарочного трехканатного композитного арочного моста со стальной кромкой главной балки с жесткой связью, изобретена новая конструктивная форма жесткой стальной кромки главной балки, а также авторы разработали и спроектировали ключевую арочно-стержневую трехмерную шестигранную пространственную узловую структуру. Результаты анализа показывают, что по сравнению с традиционным арочным мостом композитный арочный мост с тремя арками и тремя тросами с большим пролетом имеет красивую форму, логичную структуру, эффективную конструкцию, представляет собой высокопрочную, высокопроизводительную композитную конструкционную систему с лучшей прочностью, жесткостью, стабильность, динамические характеристики которого решают проблемы горизонтальной тяги арочного моста со сверхширокими пролетами, улучшают плохую поперечную устойчивость, а также уменьшают ключевые технические проблемы управления кабельными соединениями, что имеет перспективы широкого применения в инженерных проектах такого типа.

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