基于精度评定理论的高速铁路曲线桥梁水平位移监测方法分析研究
发布时间：2019-06-26 22:08
【摘要】：在桥梁水平位移监测中,基于当前高铁桥梁不规则线型增多的情况,针对传统精度分析方法只能掌握监测点沿桥梁中轴线垂直方向的偏差且是基于简易误差传播理论,而施工监测中需掌握沿某特定方向的精度。因此,结合跨淮河某桥梁,创新采用误差椭圆理论对小角法、角度交会法、距离交会等监测方法进行精度评定,结果认为小角法对于曲线桥梁适用性较差,而后方交会和极坐标组合方法能够产生较小的误差椭圆和点位精度,期望结论对相关桥梁工程有所借鉴。
[Abstract]:In the horizontal displacement monitoring of bridges, based on the increase of irregular lines of high-speed railway bridges, the traditional accuracy analysis method can only master the vertical deviation of monitoring points along the central axis of the bridge and is based on the simple error propagation theory, but the accuracy along a specific direction should be mastered in construction monitoring. Therefore, combined with a bridge across the Huaihe River, the error ellipse theory is used to evaluate the accuracy of small angle method, angle intersection method, distance rendezvous and other monitoring methods. The results show that the small angle method has poor applicability to curved bridges, while the rear intersection and polar coordinate combination method can produce less error ellipse and point accuracy. It is expected that the conclusion can be used for reference in related bridge engineering.
【作者单位】： 宿迁学院建筑工程学院;东南大学交通学院;
【基金】：江苏省科技支撑(工业)项目(BE2014026) 江苏省高校自然科学研究项目(13KJB420004)
【分类号】：U446
本文编号：2506535
[Abstract]:In the horizontal displacement monitoring of bridges, based on the increase of irregular lines of high-speed railway bridges, the traditional accuracy analysis method can only master the vertical deviation of monitoring points along the central axis of the bridge and is based on the simple error propagation theory, but the accuracy along a specific direction should be mastered in construction monitoring. Therefore, combined with a bridge across the Huaihe River, the error ellipse theory is used to evaluate the accuracy of small angle method, angle intersection method, distance rendezvous and other monitoring methods. The results show that the small angle method has poor applicability to curved bridges, while the rear intersection and polar coordinate combination method can produce less error ellipse and point accuracy. It is expected that the conclusion can be used for reference in related bridge engineering.
【作者单位】： 宿迁学院建筑工程学院;东南大学交通学院;
【基金】：江苏省科技支撑(工业)项目(BE2014026) 江苏省高校自然科学研究项目(13KJB420004)
【分类号】：U446
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2 陈熙祥;隧洞贯通设计精度评定的简易方法[J];浙江水利水电专科学校学报;1999年01期
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