在钢网架屋面工程安装结束后,挠度做为一项较重要的检验指标。在平常的检验工作中,钢网架屋面一般安装在离地面10多米高处,在上面安置测量仪器非常困难,同时给人身安全带来较大隐患。本文结合某市游泳馆网架,不需要检验人员在上面检测,利用宾得免棱镜全站仪在地面上测量网架挠度,并利用Excel绘制挠度曲线图。实践证明,本方法简便、易行、可靠。 After the installation of steel truss roofing project, deflection as a more important test indicators. In the usual inspection work, the steel truss roof is generally installed at a height of more than 10 meters above the ground. It is very difficult to place the measuring instruments on the steel truss. At the same time, it brings great risks to personal safety. In this paper, a swimming pool network in a city, do not require inspection personnel in the above test, the use of Pentax Prism total station on the ground to measure the deflection of the grid, and use Excel to draw the deflection curve. Practice has proved that this method is simple, easy and reliable.