◆ Cast-in wire lifting loops are the most economic way of providing a crane hook attachment in precast units. However, they require relatively large edge distances. Consideration must also be given to the exposure of steel rope hoops after panel assembly.

◆ The flexibility of steel rope makes it the safest method for forming a cast-in loop. Lifting loops formed from reinforcement bars are liable to fatigue, particularly if bent during angled lifts.

◆ Provided that hoops are installed in reinforced concrete and to the minimum dimensions in the table, no anchorage reinforcement is generally required. However for acute angled lifts, additional lateral reinforcement may be required.