冼庄立交旧桥利用方案分析  

Analysis on Old Bridge Utilization Scheme of Xianzhuang Interchange

作　　者：何则干[1] 蔡宪棠[1] 

机构地区：[1]广州市市政工程设计研究院,广东广州510060

出　　处：《城市道桥与防洪》2015年第1期61-64,9,共4页Urban Roads Bridges & Flood Control

摘　　要：旧桥利用是城市道路建设的难题,结合广明高速冼庄立交旧桥利用的实际工程,开展旧桥利用方式选择的分析研究。通过检测验算,掌握冼庄立交既有旧桥的状况,根据广明高速及冼庄立交的功能需求和建设条件,比选旧桥利用方案。建立空间有限元模型模拟新旧桥连接的力学行为,并以此作为开展旧桥加宽加固工作的依据。冼庄立交旧桥利用方案分析将为其它工程旧桥利用提供参考。The old bridge utilization is the difficulty of urban road construction.Combined with the practical project of old bridge utilization of Xianzhuang Interchange,the article analyzes and studies the selection of old bridge utilization mode.The inspection and check understand the status of the existing old bridge of Xianzhuang Interchange.Based on the function demand and construction condition of Guangming Expressway and Xianzhuang Interchange,the old bridge utilization schemes are compared and selected.The spatial finite element model is established to simulate the mechanics action connecting the new bridge with the old bridge,and it is taken as the basis for the widening and reinforcing work of old bridges.The analysis on the old bridge utilization scheme of Xianzhuang Interchange will be referred for the utilization of the old bridges in the other projects.

关 键 词：旧桥 桥梁加宽 数值模拟 比选 

分 类 号：U445.6[建筑科学—桥梁与隧道工程]