城市高架道路支座更换设计摘要：本文以杭州市中河立交桥一期支座更换工程为背景，简要介绍了该工程的设计和施工方案，为城市高架道路支座更换提供参考。关键词：城市高架桥 ， 支座，更换abstract: this article with a period of hangzhou city overpass river bearing replacement project as the background, this paper briefly introduces the engineering design and construction plan, for the urban elevated road bearing replacement to provide the reference.key words: the city flyovers extensively, bearing, replacement中图分类号：s611文献标识码：a 文章编号：1 引言上世纪九十年代，全国各城市进入城市建设快速发展期，特别是大中型城市都规划和建设了城市
