基于光纤光栅传感技术建筑倾斜监测方法研究

摘要

将光纤光栅传感器连同钢筋埋入建筑角柱中,利用测得应变数值和相关几何关系,得到建筑角柱每层沿X、Y方向的位移值,然后结合规范中给出的建筑倾斜公式,建立了基于分布式光纤光栅传感技术建筑倾斜监测方法.随后,将该方法运用到一栋中高层住宅建筑倾斜监测中,并利用全站仪监测数据进行对比验证.研究结果表明:该建筑倾斜监测方法监测精度高、可操作性强、耐久实用,可在中高层、高层及超高层建筑物的倾斜度监测中推广应用.%FBG sensors and rebars embedded in building corner columns were used. Based on the measured strain values and related geometric relationships, along the X, Y direction of the displacement value, and then combined with the specification given in the building tilt formula, a distributed optical fiber grating sensing technology building tilt monitoring method is established and applied to a medium and high-rise residential building tilt monitoring, using monitoring data from total station for comparative verification. The results show that the building inclination monitoring method has the characteristics of high monitoring precision, strong maneuverability and durability and practicality. It can be widely applied in the slope monitoring of the middle, high, super high and super high buildings.