上海长江大桥主航道桥GPS监测数据分析

Analysis on GPS Monitor Data for Main Shipping Channel Bridge of Shanghai Changjiang River Bridge

根据上海长江大桥主航道桥GPS监测数据,分析塔顶位移和跨中位移的长期变化情况,以及在堵车突发事件下结构的变形情况。结果表明,塔顶顺桥向位移长期呈周期性变化,与温度相关性明显;突发事件中堵车对桥梁结构位移影响明显。

Based on the GPS monitor data of the main shipping channel bridge of Shanghai Changjiang River Bridge, the article analyzes the secular variation of displacements at the pylon top and in the middle of span,and the structural deformation in the sudden events of traffic congestion. The result shows that the displacement of pylon top alone the bridge periodically changes obviously associated to the temperature. The sudden event of traffic congestion obviously influences the structural displacement of bridge.