(53+84+38+40+30)m预应力混凝土刚构-连续梁总体设计  

Overall Design of(53+84+38+40+30)m Prestressed Concrete Rigid Frame-Continuous Beam

作　　者：张茜 ZHANG Xi(China Railway Fifth Survey and Design Institute Group Co.,Ltd.,Beijing 102600,China)

机构地区：[1]中铁第五勘察设计院集团有限公司,北京102600

出　　处：《工程技术研究》2023年第4期180-182,186,共4页Engineering and Technological Research

摘　　要：受限于整体规划和线位走向,公路与铁路难免会交叉。尤其是同时与多个线路多角度交叉,在孔跨及结构选择的过程中,需要同时考虑方案可行性、施工便捷性及经济性等多种因素。文章依托于既有长虹东路改扩建工程,重点阐述了(53+84+38+40+30)m预应力混凝土刚构-连续梁方案的构思过程,介绍主桥结构设计内容,同时建立有限元模型,对结构进行计算分析。Limited by the overall planning and route direction,roads and railways will inevitably intersect.In particular,it intersects with multiple lines at multiple angles at the same time.In the process of hole span and structure selection,it is necessary to consider various factors such as scheme feasibility,construction convenience and economy.Based on the reconstruction and expansion project of existing Changhong East Road,this paper focuses on the conception process of(53+84+38+40+30)m prestressed concrete rigid frame-continuous beam scheme,introduces the design content of the main bridge structure,and establishes the finite element model to calculate and analyze the structure.

关 键 词：刚构-连续梁 总体设计 桥型方案 高速铁路 

分 类 号：U445.4[建筑科学—桥梁与隧道工程]