广州市海珠桥主桥维修加固设计  

MAINTENANCE AND REINFORCEMENT DESIGN FOR THE MAIN BRIDGE OF HAIZHU IN GUANGZHOU

作　　者：鲍莉霞[1,2] 彭振华[1] 

机构地区：[1]中铁大桥勘测设计院集团有限公司,武汉430050 [2]中铁大桥(南京)桥隧诊治有限公司,南京210000

出　　处：《钢结构》2016年第1期42-44,60,共4页Steel Construction

摘　　要：在介绍广州市海珠桥近80年营运历史及改扩建情况的基础上,以"修旧如旧"为主要原则,通过维修加固,将主桥恢复为1950年重建后的3孔下承式简支钢桁桥,构件间维持原有的铆钉连接。对主桥桥面以下结构及桥面以上部分不能继续使用的构件进行更换,更换的构件维持原有外形尺寸、提高材料强度,达到保持原貌、提高通行荷载等级的目的,通过优化总体线形及桥下净空,改善桥面及桥下行车条件。In the base of introducing Guangzhou Haizhu Bridge  s nearly eighty years of operating history and reconstruction and expansion situation,and according to the principle of＂repairing the old as old＂,which helps effectively maintain the original style of the main bridge of 1950. The main bridge of 1950 was simply-supported truss steel through bridge with three holes,the members were connected by rivets. Replacing the unavailable members under deck and over deck by new members,which own the original dimension and improved material strength,thus reach the requirements of remaining old appearances and improving the grade of the living load. The situation of transport on or under the bridge was improved by optimizing the general line and the underpass clearance.

关 键 词：简支钢桁梁 维修加固设计 修旧如旧 铆钉连接 

分 类 号：U445.72[建筑科学—桥梁与隧道工程]