Structural Design of Xiaozhuang Bridge
武略WU Lue
(山东省高速工程检测有限公司,济南250002 )
( Shandong High Speed Engineering 'Testing Co.,Ltd.,Ji'nan 250002,China )
摘要:本文主要研究分析小壮特大桥结构设计,首先分析找国桥梁设计现状,同时综合探讨了桥梁设计的注意事项,主要包含应该更加重视结构的耐久性问题、重视对疲劳损伤的研究、充分重视桥梁的超载问题,积极借鉴国外的经验和成果。并且对于桥梁研究方向进行剖析,主要有结构系统的可靠度分析、人为差错的分析、在役结构的可靠性评估与维修决策问题.模糊随机可靠度的研究.接着综合分析了小壮特大桥工程概况,首先对于可采用方案进行分析比较,主要可备选的方案有连续刚构构思,斜拉桥构思、拱桥构思、自锚式悬索桥构思，接着对技术标准进行了综合探讨,然后从考虑航道要求.主桥下部结构主桥墩采用双薄壁空心墩.预应力钢束的布置三个方面对于进行了结构总体设计,最后笔者在经过充分论证和探讨的基础上进行结构计算。本文主要研究分析小壮特大桥结构设计并得出相关结论,以期对于后续研究者进行相关方面的研究提供理论上的参考和借鉴意义。
Abstract: This article mainly studies and analyzes the structural design of the Xiaozhuang Bridge.Firstly, it analyzes the currentsituation of bridge design in China, and comprehensively discusses the precautions for bridge design, mainly includling paying more attentionto the durability of the structure, studlying fatigue damage,fully paying attention to the overload problem of the bridge , and actively drawingon foreign experience and achievements.And it analyzes the research direction of bridges, mainly including reliability analysis of structuralsystems, analysis of human errors，reliability evaluation and maintenance decision-making problems of in-service structures,and researchon fuzsy random reliability. Then the general situation of Xiaozhuang Bridge poject is comprehensively analyzel. First,the availableschemes are analyzed and compared. The main alternative schemes are contintous rigid frame conceptl, cable-stayed bridge concept, archbridge concept,self anchored Suspension bridge concept.Suhsequently，a comprehensive discussion was conducted on the technicalstandards, and the overall design of the structure was carried out from three aspects: considering the requirements of the navigation channel.using double thin-walled hollow piers for the main bridge piers in the lower structure of the main bridge,and arranging prestressed steeltendons.Finally, the author conducted structural calculations on the basis of thorough argumentation and discussion.This article mainlystudies and analyzes the stuctural design of the Xiaozhuang Bridge and draws relevant conclusions, in oder to provide theoretical referencesignificance for subsequent researchers to conduct relevant research.
关键词:小壮特大桥;结构;设计
Key words: Xiaozhuang Bridge; structure; design
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