1. The portal scaffolding set-up
(1) Scaffold erection sequence: put the base to step the first frame in the base with shear.  And laid the pedals (or parallel to the frame) on the barge core to step on the door frame installation, install the locking arm.

(2)  Portal frame scaffolding should begin from the end to the other end of the build-up at the beginning, in the first step after the completion of the scaffold erection and erection of scaffolding on the step.

(3) According to the plate (or block) to draw on the location of the installed base and insert the first two common door frame, then put on the cross brace, lock the lock, to guarantee the stability of the door frame that has installed.

(4) After the erection of the door frame in turn; Set-up cross each door frame is installed shear brace and lock the lock, and nail fixed base to prevent slip.

(5) As the first step after the completion of the scaffold erection and application level testing the elevation of the door frame to adjusting the height adjustable base, make the door frame of elevation.

(6) The lock on the door frame end seat in the locked arm, arm lock should pay attention to the other end will be upward, in the direction of the curve is consistent, not to the fault, in order to avoid any step in the door frame when the connection is not installed in place.

Once in the first two common door frame with shear after the stand or horizontal, install the pedals or both ends of the card hook lock plate shall be installed with the lock.

Being the first step after the portal scaffolding, from the erection of the finish end of the first step of scaffolding to the next step in the erection of scaffolding, in order to prevent the difficulties caused by an error of joint connection.