大跨钢箱梁斜拉桥施工控制要点分析

Analysis of Key-points for Construction Control of Long-span Steel Box-girder Cable-stayed Bridge

由于大跨钢箱梁斜拉桥结构自身的特性 ,风载、温度荷载等对其施工控制影响较大 ,为确保此类桥施工控制的准确性 ,必须对施工控制计算参数进行识别、修正。本文以武汉军山长江大桥主桥大跨钢箱梁斜拉桥施工控制为实例 ,分析了影响大跨钢箱梁斜拉桥施工控制的这两大要点。

Construction control of long?span steel box-girder cable?stayed bridges will be influenced dramatically by both wind and temperature load,owing to the structural characteristics. In order to control the construction of such bridges accurately, it′s necessary to verifying and adjusting calculating parameters to by control. Providing an instance of Wuhan Junshan Yangtze River Bridge, the thesis analyses the two key?points which influence construction control of long-span steel box?girder cable?stayed bridge.