[1]温希华.马鞍山长江公铁大桥栈桥结构设计及结构特性研究[J].高速铁路技术,2024,15(06):122-126.[doi:10.12098/j.issn.1674-8247.2024.06.020]
　WEN Xihua.Study on the Design and Structural Characteristics of the Trestle Structure for the Ma'anshan Yangtze River Highway-Railway Bridge[J].HIGH SPEED RAILWAY TECHNOLOGY,2024,15(06):122-126.[doi:10.12098/j.issn.1674-8247.2024.06.020]
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马鞍山长江公铁大桥栈桥结构设计及结构特性研究()
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《高速铁路技术》[ISSN:1674-8247/CN:51-1730/U]

卷:
15卷
期数:
2024年06期
页码:
122-126
栏目:
勘察设计
出版日期:
2024-12-15

文章信息/Info

Title:
Study on the Design and Structural Characteristics of the Trestle Structure for the Ma'anshan Yangtze River Highway-Railway Bridge
文章编号:
1674-8247(2024)06-0122-05
作者:
温希华
(中国铁路上海局集团有限公司, 上海 200000)
Author(s):
WEN Xihua
(China Railway Shanghai Bureau Group Co., Ltd., Shanghai 200000,China)
关键词:
施工栈桥;  可拆卸式桩头;  有限元计算模型;  栈桥设计
Keywords:
construction trestle;  detachable pile head;  finite element calculation model;  trestle design
分类号:
U44
DOI:
10.12098/j.issn.1674-8247.2024.06.020
文献标志码:
A
摘要:
本文以马鞍山长江公铁大桥施工栈桥为案例,对施工栈桥设计要点及结构特性进行研究分析,得到以下研究成果:栈桥结构创新设计了可拆卸式桩头,方便了钢管桩的安装以及重复利用; 桥台采用钢管桩+挡板结构形式,既充分利用杆管桩横向抗弯能力,还有效节省挡土墙结构材料; 通过建立有限元计算模型,分析栈桥在各种横向、竖向荷载作用下的受力及变形情况,计算结果满足要求。研究结果对类似河床高程变化大、强冲刷条件下的栈桥设计具有一定的推广和借鉴意义。
Abstract:
Taking the construction trestle of Maanshan Yangtze River Highway and Railway Bridge as a case study, this paper analyzed the design points and structural characteristics of the construction trestle. The trestle structure innovatively designs a detachable pile head, which facilitates the installation of steel pipe piles and the reuse of steel pipe piles. The abutment adopts a steel pipe pile+baffle structure, which not only fully utilizes the lateral bending resistance of the steel pipe piles, but also effectively saves the structural materials of the retaining wall. A finite element calculation model was established to analyze the stress and deformation of the trestle under various lateral and vertical loads, and the calculation results met the requirements. The research findings have certain promotional and referential significance for the design of trestles under similar conditions of large variations in riverbed elevation and strong scour.

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备注/Memo

备注/Memo:
收稿日期:2024-08-13
作者简介:温希华(1981-),男,高级工程师。
更新日期/Last Update: 2024-12-15