大跨径缆索承重桥梁状态评估的研究现状与发展

发布时间：2018-01-09 18:04

本文关键词：大跨径缆索承重桥梁状态评估的研究现状与发展　出处：《哈尔滨工业大学学报》2017年09期 　论文类型：期刊论文

【摘要】：对大跨径缆索承重桥梁进行合理的状态评估有助于掌握桥梁结构的技术状况、指导制定养护对策,以保证桥梁的正常运营和结构安全.首先综述了基于标准和规范的评估方法和基于系统工程理论的评估方法的研究现状及应用;其次对桥梁管理系统和长期监测系统的发展情况和评估数据信息源现状进行综述和分析;然后阐述了大跨径缆索承重桥梁状态评估面临的机遇和挑战,并提出了多源信息融合的功能模型和结构模型.综合分析表明:大跨径缆索承重桥梁评估规范的制定迫在眉睫;人工巡检信息和长期监测信息都有其各自的弊端,都难以独立成为桥梁状态评估的理想数据来源,引入多源信息融合技术,有望提高大跨径缆索承重桥梁评估结论的可信度;对缆索承重桥梁群实现评估方法标准化是未来发展方向之一.
[Abstract]:It is helpful to grasp the technical condition of the bridge structure and to guide the establishment of maintenance countermeasures by evaluating the reasonable state of the long-span cable bearing bridge. In order to ensure the normal operation and structural safety of the bridge, the research status and application of the evaluation methods based on the standards and codes and the evaluation methods based on the system engineering theory are summarized. Secondly, the development of bridge management system and long-term monitoring system and the status of evaluation data information source are summarized and analyzed. Then the paper expounds the opportunity and challenge of the state evaluation of long-span cable bearing bridge. The function model and structure model of multi-source information fusion are put forward. The comprehensive analysis shows that it is urgent to formulate the evaluation code for long-span cable-bearing bridges. Both the manual inspection information and the long-term monitoring information have their own drawbacks, so it is difficult to independently become the ideal data source for bridge state evaluation. The multi-source information fusion technology is introduced. It is expected to improve the reliability of the evaluation conclusions of long-span cable-bearing bridges. Standardization of evaluation methods for cable-bearing bridge groups is one of the future development directions.
【作者单位】：东南大学交通学院;
【基金】：国家自然科学基金(51208096) 江苏省交通运输科技项目重大科技专项(2014Y02);江苏省交通运输科技项目(2012Y25)
【分类号】：U446.3
【正文快照】： 在众多的桥梁结构形式中,缆索承重桥梁以跨越能力大而著称,在200~2 000 m内缆索承重桥梁具有很强的竞争力,覆盖了此跨径范围中90%的桥梁[1].世界跨径排名前10的斜拉桥中,中国占了6座,跨径前10的悬索桥中,中国占了4座,充分表明中国缆索承重桥梁建设水平已经进入世界前列.尤其在

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