高速公路改扩建互通匝道桥设计.docVIP

高速公路改扩建互通匝道桥设计 赵莹 衡水市公路勘测设计所 X 关注成功！ 加关注后您将方便地在 我的关注中得到本文献的被引频次变化的通知！ 新浪微博 腾讯微博 人人网 开心网 豆瓣网 网易微博 摘????要： 随着我国物流业的持续繁荣及路网结构的间断性改造, 高速类公路翻修类工程规模不断加大, 高速公路之间互通型立交化连接模式已经成了这种路型结构改造过程中的重点内容, 而多肢路枢纽型互通立交式建造方案在当今国内高速类公路改扩建施工中应用的不够广泛, 目前的交通工程设计规程中有关这方面的内容还不完善。论文以我国2处高速公路连接处枢纽互通型立交对接改扩建工程为参考例证, 阐述了把多肢枢纽型互通立交的对接模式应用到当今高速路改扩建项目中的价值性, 以及在技术设计过程中所选取的技术条件, 在探讨设计过程中碰到的相关问题的前提下, 归纳凝练出对应的技术基准及实际的应用方案, 旨在给同行提供借鉴。 关键词： 高速交通; 多肢枢纽互通; 改扩建工程; 匝道桥设计; 作者简介：赵莹 (1982~) , 女, 河北衡水人, 工程师, 从事道路桥梁设计与研究。 收稿日期：2017-04-06 Highway Interchange Ramp Bridge Reconstruction and Design ZHAO Ying Hengshui City Highway Survey Design; Abstract： With the continuous prosperity of the logistics industry in our country and the discontinuity of road network structure, high-speed highway overhaul class engineering scale increasing, the highway communication between Li Jiao Hua type connection mode has become the important content of structure transformation in the process of the road, and more limb road hub interchanges type construction scheme in current our country highway class and reconstruction, is widely applied in construction, the current traffic engineering design in the articles of association about this aspect of the content is not perfect. Based on our country highway junction hub in two places each type interchange joint reconstruction engineering for example, elaborated the limb hub type more interchanges docking model is applied to the value of current highway reconstruction project, and the selection of technical conditions in the process of technical design, in this paper the design process related problems under the premise of inductive concise out the corresponding technical standards and take practical application solutions, aimed at providing reference for colleagues. Keyword： high-speed traffic; limb hub exchange; reconstruction projects; ramp bridge design; Received： 2017-04-06 1 引言 我国国内有一条高速公路是属于双向四车道类型, 其路体基础宽度是27m, 自从建成通车之后车流量迅速加大, 有相关统计结果显示, 至2009年年底, 该高速公路断面日平均车流量已超过342