部分斜拉桥施工控制位移测点优化布置

Study on Optimal Arrangement for Displacement Measured Points in Construction Control of Partial Cable - stayed Bridge

部分斜拉桥施工控制中常采用预埋测点来监控桥梁施工过程,为信息化施工提供比较准确的量测数据,本文以常澄高速公路某部分预应力混凝土斜拉桥为背景工程,针对测点优化展开研究,采用最小二乘法进行曲线拟合,以误差达到最小为约束条件,确定出最佳的位移测点布置方案,从而为此类方法提供理论依据并为现场施工服务。

In the construction control of the partial cable - stayed bridge, embedded measured points were commonly used to monitor the construction procedure for aquiring more accurate data, which are necessary for infor-rnationalized construction. Based on a construction of the partial cable - stayed bridge in Chang - cheng expressway , this paper adopts the least square method to carry on approximately curve with the principle of making the error to minimum, then to make out the best arrangement measurement for the displacement measured point.