摘要
松花江大桥是哈尔滨绕城高速公路西段项目12合同段上的一座特大桥,在该桥引桥上部现浇箱梁施工中采用了省内较为少见的单侧、大吨位后张法预应力技术。结合施工实践,介绍了预应力混凝土结构设计、后张法施工工艺及注意事项。
Songhuajiang River major bridge is a super major bridge attached to Harbin belt highway. The post-tensioning method has been applied to the present-casting box girder of its bridge approach. Based on the practice, it introduces the prestressed concrete structure design and the related construction techniques.
出处
《交通科技与经济》
2006年第3期50-51,共2页
Technology & Economy in Areas of Communications
关键词
后张法
预应力结构
钢绞线
联接器
挤压机
现浇箱梁
施工工艺
post-tensioning method
pre-stressed structure
steel strand
connecting box
extruder, present-casting box girder
