深圳平安金融中心高精度北斗变形监测系统的研发与应用

Development and Application of the High Precision Beidou Deformation Monitoring System in Shenzhen Ping'an Financial Center

针对深圳平安金融中心建造过程,采用北斗兼容GNSS接收机进行了施工变形监测,探讨了在复杂施工环境下,数据采集方法及后处理算法,有效解决了因环境因素造成数据质量差而无法高精度解算的问题;同时利用小波变换提取了大楼南北向、东西向和高程方向的自振频率;测定了风荷载下的楼体位移和超高层楼体高度及随昼夜温差引起的变形,为超高层建筑安全施工提供了可靠的数据基础。

According to the Shenzhen Ping ＇an Financial Center construction process,the construction deformation monitoring was conducted by compass compatible GNSS receiver, the data acquisition methods and processing algorithms were discussed in the complex construction environment,which can effectively solve the problems of poor quality of data fuiling to high precision solution by environmental factors caused. Wavelet transform was used to extract the building north and south to the thing,and elevation direction to self vibration frequency. The wind load determination was determined on the building body displacement. The high-rise building height and deformation caused by the temperature difference between day and night was tested,which provides reliable data basis for a super high-rise building construction safely.