Crane operations for panel rotation

Working with concrete elements? This page is a guide to erection methods when rotating panels.

For pickup from the delivery truck, the crane boom should be perpendicular to the truck body.

Crane and truck position

Crane and truck position

Mid-air rotation

When rotating a panel, the main axis of the panel must be in-line with the boom, both hoist ropes are aligned with the sheaves which prevents side loading of the rope on the head sheaves.

The load is transferred from the anchors in the horizontal edge to the vertical edge.

Mid-air rotation

There are two types of erection method:

Main winch erection rigging

Main winch erection rigging is the standard erection method. The panel is lifted from the truck and handled with lines from the auxiliary winch connected to the top edge lift anchors.

Lines from the main winch are attached to anchors in the short top edge and used to erect the panel in the vertical orientation after mid-air rotation.

Auxiliary winch erection rigging

This method may be required on some sites. This method is limited to cranes where the capacities of both main and auxiliary winches is enough to lift the full load.

The panel is lifted from the truck using the auxiliary winch attached to lines from anchors in the top horizontal edge.