洞庭湖二桥造型设计  

Aesthetic Design of Second Dongting Lake Bridge

作　　者：罗晓瑜 陈艾荣[2] 刘海波 LUO Xiao-yu;CHEN Ai-rong;LIU Hai-bo(Research Institute of Bridge Engineering,School of Highway,Chang′an University,Xi′an 710064,China;Department of Bridge Engineering,Tongji University,Shanghai 200092,China;Hunan Provincial Communications Survey&Design Institute Co.,Ltd.,Changsha 410008,China)

机构地区：[1]长安大学公路学院桥梁工程研究所,陕西西安710064 [2]同济大学桥梁工程系,上海200092 [3]湖南省交通规划勘测设计院有限公司,湖南长沙410008

出　　处：《世界桥梁》2019年第6期16-20,共5页World Bridges

基　　金：中央高校基本科研业务费专项资金项目(300102219503);交通运输部规范编制项目(厅公路字2010 132)

摘　　要：洞庭湖二桥位于湖南省岳阳市七里山附近,是杭瑞国家高速公路临湘(湘鄂界)至岳阳公路的控制性工程,全长3 070m,主跨1 480m,采用钢桁主梁,双向6车道布置,为单主跨双塔悬索桥。总体景观设计中,通过对大桥桥址自然环境和地域文化的调查与分析,从具有当地文化特色的"排箫"中抽象出基本的竖向线条造型元素。在主桥比例设计中,采用比例图解法与黄金分割法确定边、中跨比。在构件造型设计中,桥塔造型采用力学图式法,以竖向线条元素为桥塔基本造型元素,创作出受力明确、韵律良好、造型新颖的塔型;引桥桥墩造型采用立面竖向刻槽设计;锚碇侧面造型采用分层线条设计;主梁采用通透的桁架梁。全桥造型元素一致,风格统一,体现了当地自然与文化特征在现代桥梁造型设计中的应用。The Second Dongting Lake Bridge, located near Mount Qili in Yueyang City, Hunan Province, is a control project on the Linxiang(border of Hunan Province and Hubei Province)-Yueyang Section of Hangzhou-Ruili Expressway. The bridge is a two-tower suspension bridge with a total length of 3 070m and a singlemain span of 1 480m. In the general landscape design, the natural environment at the bridge site and local culture were studied and analyzed, based on which the basic shaping elements of the vertical lines of the bridge were drawn from themusical instrument "panpipe" that is quite a local feature. To determine the distribution of themain bridge, the proportionmethod and golden sectionmethod were used to calculate the ratio of side spans and the central span. In the aesthetic design of the components, themechanical schematicmethod was used to design the towers, and vertical lines were selected as the basic aesthetic elements, to create towers that would have clear load paths, sleek line and novel shape. The piers of the approach bridge are decorated by vertical grooves, laminated lines are deployed on the side walls of the anchor blocks, and themain girder adopts the penetrating truss girder. The aesthetic elements of the whole bridge keep the same style, so as to assure the visual integrity of components and embody the application of local natural and cultural elements in the aesthetic design ofmodern bridges.

关 键 词：洞庭湖二桥 桥梁景观 桥梁造型 造型元素 比例图解法 力学图式造型法 桥梁设计 

分 类 号：U443.24[建筑科学—桥梁与隧道工程] U443.35[交通运输工程—道路与铁道工程]