多跨斜拉桥在交变荷载作用下的参数分析

IF 0.6 4区工程技术 Q4 ENGINEERING, CIVIL

Baltic Journal of Road and Bridge Engineering Pub Date : 2019-12-27 DOI:10.7250/bjrbe.2019-14.457

Hiram Arellano, R. Gómez, D. Tolentino

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引用次数: 3

摘要

分析了墩、塔和桥面刚度对多跨斜拉桥在交变活载作用下性能的影响。考虑到竖琴电缆系统和风扇电缆系统，讨论了这些参数的变化。还考虑了桥墩塔架和甲板之间的不同类型的连接。根据一座三跨斜拉桥的受力特点，分析了桥墩-塔柱刚度和桥面刚度的变化规律。三跨和多跨斜拉桥的应力和挠度状态相似。研究表明，考虑到甲板刚度和桥塔刚度的相同值，与扇形系统相比，竖琴型系统在交变活载下的性能具有优势。研究表明，多跨斜拉桥的阻力机理是由墩-塔单元提供的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Parametric Analysis of Multi-Span Cable-Stayed Bridges Under Alternate Loads

The influence of the stiffness of piers, pylons and deck in the behaviour of multi-span cable-stayed bridges under alternate live loads is analysed. The variation of these parameters is discussed considering both a harp cable system and a fan cable system. Different types of connections between pier-pylon and deck are also considered. Based on the behaviour of a three-span cable-stayed bridge, the variation of pier-pylon stiffness and deck stiffness was analysed. A similar state of stress and deflections was obtained for both a three-span and a multi-span cable-stayed bridge. The study shows that the harp type system presents advantages compared to fan type in terms of its behaviour under alternate live loads considering the same values of deck stiffness and pier-pylon stiffness. It is demonstrated that the resistant mechanism of multi-span cable- stayed bridges is provided by the pier-pylon element.

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来源期刊

Baltic Journal of Road and Bridge Engineering 工程技术-工程：土木

CiteScore

2.10

自引率

9.10%

发文量

审稿时长

>12 weeks

期刊介绍： THE JOURNAL IS DESIGNED FOR PUBLISHING PAPERS CONCERNING THE FOLLOWING AREAS OF RESEARCH: road and bridge research and design, road construction materials and technologies, bridge construction materials and technologies, road and bridge repair, road and bridge maintenance, traffic safety, road and bridge information technologies, environmental issues, road climatology, low-volume roads, normative documentation, quality management and assurance, road infrastructure and its assessment, asset management, road and bridge construction financing, specialist pre-service and in-service training;