The invention relates to a high-rise building measurement
control point projection positioning auxiliary device and a using method thereof. The device consists of an upper cover plate, a lower cover plate and a
laser receiving target, wherein the upper cover plate is connected with the lower cover plate through a connecting shaft; the lower cover plate is covered with the upper cover plate; an upper cover lock of the upper cover plate is aligned to a lock hole of a lower bottom plate; the lower cover plate is internally provided with four rectangular holes; positioning adjusting screw rods are arranged on four sides of the rectangular holes; the positioning adjusting screw rods are provided with bolts; the
laser receiving target is arranged into a groove in match with the
laser receiving target, in the lower cover plate; elevation points are formed on the plate frame of the lower cover plate. In high-rise
building construction measurement, when an internal control method is used, the device is used for receiving laser when a laser plummet is adopted to transmit a bottom layer
control point to an upper-layer construction floor, positioning lines are moved by moving the bolts on the positioning adjusting screw rods, and the
point location is confirmed through cross points of positioning lines. The device is capable of permanently preserving the
control point location, protecting projection holes and improving the construction security; meanwhile as the device is provided with elevation control points, the problems that in the construction process, the elevation control points are not high in precision and the control
point location is not stable are solved.