钢锚箱在斜拉桥索塔锚固区中的应用

近年来,日本、欧洲、中国(包括香港)等地相继建成许多大跨度斜拉桥。钢锚箱由于受力方式明确、施工方便等优点已在多座大跨度斜拉桥中得到应用。通过中外大量实例,对钢锚箱在索塔锚固区的3类结构形式及工程应用进行了说明和若干总结。

Application of Steel Anchor Boxes to Anchorage Zones in Pylons of Cable-Stayed Bridges

Many long span cable-stayed bridges have been successively built in Japan,Europe and China(including Hong Kong,China) in the recent years and owing to the advantages of the clear mechanical behavior and convenient construction,the steel anchor boxes have been applied to a good number of these bridges.In this paper,based on several practical bridge examples at home and abroad,three kinds of the structural forms of the anchor boxes and their engineering application to the anchorage zones in pylons of the long span cable-stayed bridges are illustrated and summarized.