基于多因素的连续高架桥梁设计高度研究  

Research on Design Height of Continuous Viaduct Based on Multi-factor

作　　者：刘维维[1] 祁晨旭 杨乃涛 LIU Weiwei;QI Chenxu;YANG Naitao(CCCC First Highway Consultants Co.,Ltd.,Xi’an 710075,China)

机构地区：[1]中交第一公路勘察设计研究院有限公司,西安710075

出　　处：《现代交通技术》2021年第6期45-48,65,共5页Modern Transportation Technology

摘　　要：为解决连续高架桥梁设计高度问题,从连续高架桥梁结构高度、桥下通行车辆需求、交通指示标志识别需求、驾驶员舒适驾驶需求以及桥荫植物生长特性等多方面分析,计算连续高架桥梁设计高度确定的控制因素,得出桥梁结构高度、桥下通行净空高度以及桥下道路交通标志识别所需高度为确定高架桥梁设计高度的控制指标,驾驶员舒适驾驶需求和桥荫植物生长所需高度为确定高架桥梁设计高度的验证性指标,并于某连续高架桥梁设计方案比选中应用。In order to solve the design height problem of continuous viaduct,the research analyzes the structural height of continuous viaduct,the demand for vehicles passing under the bridge,the identification for traffic signs,the demand for comfortable driving and the growth of shade plants.And calculated these control factors determined by the design height.It is concluded that the structural height of the bridge,the clearance height under the bridge and the height required for the identification for traffic signs are the control indexes to determine the design height of the viaduct.Comfortable driving demand and the height required for the growth of shade plants are the confirmatory indexes for determining the design height of the viaduct.The conclusion can be applied to the comparison and selection of design schemes of a continuous viaduct.

关 键 词：连续高架桥梁 桥下净空 驾驶舒适性 桥荫植物生长 设计高度 

分 类 号：U442.5[建筑科学—桥梁与隧道工程]