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本文介绍的洲河大桥是一座独塔依山,采用岩洞锚固、空间缆索、“叶脉”索型钢筋混凝土空腹箱形梁为主梁结构的公路斜拉桥,同时也是我国首次应用索面单元设计理论,以“施工动态图示”进行恒载设计,张拉缆索按计算机预示的数据一次完成,成桥后毋须缆索张力调整的斜拉桥。该桥由兰州铁道学院和甘肃省交通规划设计院设计及指导施工。
This paper introduces the Chau Bridge which is a cable-stayed bridge with independent structure, rock-anchorage, space cable and “veins” type of reinforced concrete box girder. It is also the first application of cable-stayed unit in China Theory, with “construction dynamic diagram” for constant load design, the tension cable according to the data indicated by the computer once completed, after the bridge without cable tension adjustment cable-stayed bridge. The bridge by the Lanzhou Railway Institute and Transportation Planning and Design Institute of Gansu Province, design and construction.