introduction box culVErt handlIng box culVErt handlIng how to handle and set concrete box How to Handle and Set Concrete Box Sections sections how to handle and set concrete box As with lifting any concrete element, special care should be taken sections by the driver of the placement vehicle to ensure that the impact or As with lifting any concrete element, special care should be taken dynamic loads are reduced to a minimum . Impact of dynamic loads by the driver of the placement vehicle to ensure that the impact or can greatly overload the anchors and cause failure . dynamic loads are reduced to a minimum . Impact of dynamic loads Loadgreatlybe appliedthe all anchors simultaneously . can must overload to anchors and cause failure . Load must be applied to all anchors simultaneously . Direction of Lift Direction of Lift Vertical Vertical Spreader Bar Spreader Bar concrete pipe stormwater treatment technologies This Box Section Does Not Move This Box Section Does Not Move This Box Section Does Not Move Direction of Box Section Movement Direction of Box Section Movement This Box Section Does Not Move correct method for Pulling box sections together Correct Method for Pulling Box Sections Together correct method for Pulling box sections together To pull the box section into position, the long leg of the lift sling is coupled to the previously placed box To pull the box section into position, the long leg of section . The free short leg is hung into the hook the lift sling is coupled to the previously placed box provided for this purpose . section . The free short leg is hung into the hook Ensure that the top guide pulley of the crane is over provided for this purpose . the outer lifting anchor of the previously placed box Ensure that the top guide pulley of the crane is over section so that the direction of pull is slightly inclined the outer lifting anchor of the previously placed box towards the placed box section . section so that the direction of pull is slightly inclined Warning: The anchors can be overloaded and fail towards the placed box section . if the crane continues to pull on the sling after the Warning: The anchors can be overloaded and fail connection is complete . if the crane continues to pull on the sling after the connection is complete . Direction of Lift Direction of Lift Vertical Vertical Spreader Bar Spreader Bar box sections manhole and catch basin material LAFARGE PIPE eMANUAL PAGE 15