广州市沙面西桥结构加固分析与设计
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（广州市鲁班建筑集团有限公司， 广州 510075）［摘要］广州市沙面西桥历经150余年的历史，已出现了不同程度的损坏，处于危桥状态。通过对沙面西桥病害现状的调查，发现该桥存在基础下沉、桥拱底有裂缝、拱圈老化等问题。经计算，桥台（桥墩）地基承载力严重不足，基础处于不稳定状态。在遵守文物加固修缮原则基础上，提出了地基基础采用钢板桩围堰、水下混凝土封底、地基套管法注浆、基础加大截面、基础间用钢筋混凝土板相连的综合加固设计措施；桥身采用镶嵌式劲性混凝土梁拱框架结构进行加固。加固后的沙面西桥目前已重新投入使用。［关键词］文物古桥; 加固; 修缮中图分类号：TU362 文献标识码：A 文章编号：1002-848X(2015)09-0048-04Structural reinforcement analysis and design of Shamian West Bridge in GuangzhouGu Weiping, Su Weicheng, Yang Yongwen(Guangzhou Luban Construction Group Co., Ltd., Guangzhou 510075, China)Abstract: After more than 150 years of history, Shamian West Bridge in Guangzhou is in dangerous state because of different degrees of damages. Through the investigation on the damage status of Shamian West Bridge, the problems were discovered as foundation sinking, cracks under the arch and aging of arch ring. Through calculation, the foundation bearing capacity of abutment (pier) is seriously insufficient and the foundation is in an unstable state. In compliance with the cultural relics repair principles, comprehensive reinforcement design measures of foundation were proposed, including of the steel sheet pile cofferdam, bottom seal with underwater concrete, foundation grouting, enlarging cross-section, and reinforced concrete plate connection between foundations. The bridge was reinforced by mosaic type reinforced concrete beam-arch frame structure. After reinforcement, Shamian West Bridge was put into use again.Keywords: ancient bridge of cultural relics; reinforcement; repair作者简介：谷伟平，高级工程师，一级注册结构工程师，一级注册建造师，Email：guweiping1203@126.com。参考文献［1］中华人民共和国文物保护法［S］. 北京：法律出版社,2008.［2］中国文物古迹保护准则［S］. 北京：中华人民共和国国家文物局,2004.［3］国家文物局法制处. 威尼斯宪章［Ｇ］／／国际保护文化遗产法律文件选编.北京：紫禁城出版社，1993.［4］GB/T 50315—2011 砌体工程现场检测技术标准［S］. 北京：中国建筑工业出版社，2011.［5］JTG/T J22—2008 公路桥梁加固设计规范［S］. 北京：人民交通出版社，2008.［6］JTG D63—2007 公路桥涵地基与基础设计规范［S］.北京：人民交通出版社，2007.［7］广州市荔湾区沙面西桥检测及监测报告［R］.广州：广州广大工程检测咨询有限公司，2007.［8］GB 50367—2006 混凝土结构加固技术规范［S］. 北京：中国建筑工业出版社，2006.［9］杨庆局.桥梁裂缝壁可法修补施工工艺［J］.林业建设, 2004(4):38-41.
