复杂山区大跨度公路拱桥的施工组织设计研究

Mountainous area of long-span arch bridge complex highway construction organization design research

黔东南州三板溪展锦线平复溪大桥复建工程为大跨度钢筋混凝土拱桥,桥址区地势险要、地质构成复杂,采用预制吊装工艺施工。该桥具有预制场地狭窄、缆索体系设置困难、起吊高差极大、材料运输不便等多重技术难点。文章结合缆索吊装特点和地形构造特征,因地制宜,研制相应的施工组织方案,取得良好效果。本桥的施工工艺可为同类型桥例缆索吊装施工提供重要参考。

Zhanjin-line Pingfuxi of bridge on the Sanbanxi of Qiandongnan, reconstruction project for large-span rein- forced concrete arch bridge, bridge site area difficult terrain, geology a lot more complex, use of prefabricated construction hoisting process. The bridge with a prefabricated space narrow, cable system set up difficult, lifting a great height difference, materials, transportation inconvenience of multiple technical difficulties. In combination with the cable hoisting structural characteristics and terrain features, local conditions, developing the corresponding construction organization plan to achieve good results. The bridge construction process can be of the same type of bridge cable hoisting cases provide an important reference.