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基于RTK-GPS的大型桥梁整体变形监测研究

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摘要 在分析大跨度桥梁变形原因和目前监测特点的基础上,提出了综合利用RTK-GPS的空间定位和授时功能对大型桥梁整体性变形监测的思想、方法和步骤。并结合一大桥荷载条件下的整体性变形监测实例,阐述了最小二乘曲线拟合和多项式插值在桥梁整体变形监测中的应用。对各监测点的多个时刻进行了插值运算并以图表形式展现大型桥梁的整体性变形监测。实践证明文中提出的方法是可行而有效的。
出处 《路基工程》 2009年第3期50-52,共3页 Subgrade Engineering
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