预应力技术在石拱桥加固中的应用  

Application of pre-compression technique for strengthening of masonry arch bridge

作　　者：杨云安[1] 曾革助[1] 傅家林[1] 

机构地区：[1]中交第四航务工程勘察设计院有限公司,广东广州510230

出　　处：《水运工程》2009年第7期205-207,共3页Port & Waterway Engineering

摘　　要：介绍采用施加竖向预压力来主动闭合水平裂缝,通过增大砌体水平剪切面之间的水平摩擦力提高桥台的水平抗力,为石拱桥的圬工桥台增大水平抗力加固找出一种有效方法。Vertical pre-compression method is adopted to seal horizontal cracks. By increasing the horizontal friction between masonry shear surfaces, the horizontal shear of the abutment is improved greatly. It＇s an effective way to enhance horizontal resistance.

关 键 词：石拱桥 加固 预应力技术 桥台 

分 类 号：TU398.3[建筑科学—结构工程]