Construction technology of large-scale fair-faced concrete cylindrical structural part with paper tube template

The invention discloses a construction technology of a large-scale fair-faced concrete cylindrical structural part with a paper tube template, which comprises the steps of: preparing before construction; hoisting the paper tube template and installing in an adjusting way; casting and maintaining the concrete; and maintaining after removing the template, and the like. The construction technology is characterized in that the step of preparing before construction comprises the steps of: designing and producing the template; correcting a reserved steel bar of a column; erecting work scaffolds around the column; binding the steel bar; leveling the lower foot of the template; and previously embedding and remaining an electromechanical pipeline and a line box. The step of hoisting the paper tube template and installing in an adjusting way comprises the step of respectively arranging a shaped enclosed purlin at the upper opening, the lower opening and the middle part of the paper tube template on the lower corner of