风景区景观桥梁桥型选择与创新设计

刘喆¹，马乃轩²

1.中国电建集团核电工程有限公司，山东 济南  250100；2.山东高速工程检测有限公司，山东 济南  250002

摘要：基于景观桥梁与自然环境和谐统一、经济美观的设计理念，以某市文化旅游区内跨河景观桥设计为研究背景，采用斜拉-悬索协作体系连续梁桥，介绍该桥初步设计阶段方案设计的基本思路，采用AutoCAD软件建立全桥三维模型，采用有限元分析软件MIDAS Civil计算本桥结构整体静力和稳定性，采用ANSYS程序分析主塔安装工况的稳定性。结果表明，所选桥型方案设计安全可靠，结构稳定性较高，满足现行规范要求，可为类似工程设计提供借鉴。

关键词：景观桥梁；方案设计；三维建模；结构计算；稳定分析

Bridge type selection and innovation design of landscape bridge in scenic area

LIU Zhe¹，MA Naixuan²

1.Power China Nuclear Engineering Company Limited, Jinan 250100, China;

2.Shandong Hi-Speed Engineering Testing Co., Ltd., Jinan 250002, China

Abstract:Taking the design of river-crossing landscape bridge in a cultural tourism area of a city as the research background, the continuous beam bridge with cable-stayed suspension cooperative system is adopted based on the design concept of harmony and unity between the landscape bridge and the natural environment, and economics and elegant appearance. The basic idea of the scheme design in the preliminary design stage of the bridge is introduced and three-dimensional model of the whole bridge is established by AutoCAD software. The key points of the bridge design are the anchorage reliability of the cable structure under low stress level, the connection reliability of the bridge tower and the main beam, and the design of the main cable spreader. The overall static and stability of the bridge structure is calculated with the finite element analysis software MIDAS Civil. The stability of the main tower under installation conditions is analyzed with the ANSYS program. The results show that this bridge is safe and reliable, and the structure stability is high,which meets the requirements of the current specifications, and can provide reference for similar engineering design.

Keywords: landscape bridge; schematic design; three-dimensional modeling; structural calculation; stability