Typically, masonry facades are intended to resist wind loads. In lieu of tear-down or replacement, an existing masonry or terra cotta facade can be fortified by the addition of mechanical ties or anchors. The Grip-Tie anchors provide additional facade stability, which may be needed to fulfill a myriad of requirements. The Grip-Tie selection process evolves by evaluating the type of anchors one can use to satisfy the repair (compatibility) and strengthening criteria. Also, one cannot ignore the means and methods of installation which can also influence the remedial anchor choice.Post-installed Grip-Tie repair anchors are available to accomplish the task. When dealing with a repair situation, the as-built material quality and current building conditions are often unknown. It is therefore not uncommon that installation criteria and performance qualification be obtained via field tests in order to confirm design assumptions. The Grip-Tie mechanical repair anchors consist of a dual expansion anchor for a mechanical connection that grips the backup and veneer which is then bridged with an anchor rod. The Grip-Tie anchor creates formidable gripping strength to the base material to which it is attached. The anchor does not draw walls together, thereby eliminating additional tension stresses between wythes of material. The backup material can be concrete, metal stud, wood stud, CMU (hollow or grouted), structural steel, or brick. The veneer can be brick, stone, or precast. The Grip-Tie anchor assembly is manufactured from corrosion-resistant materials which will contribute to the facade?s long-term durability and design life. The Grip-Tie anchorage system has been designed to accommodate easy installation via hand tools or power tools. Combining the strength, generous spacing, and affordable installation technique, the Grip-Tie mechanical repair anchor product line is a value-reward choice for facade re-anchoring.
1. Select proper anchor length based on face of veneer to face of back-up (dimension A).
2. Drill 1/2” hole through mortar joint (no impact) and a 7/16” hole in the steel back-up.
3. Blow out drill fines.
4. Assemble threaded portion of complete anchor assembly to the 501 setting tool.
(Hex bolt on the setting tool MUST be seated), thread shaft into setting tool until it stops;
Insert assembly into drilled hole until it bottoms; tighten 50 – 100 in-lbs.
5. Remove tool by holding firmly and loosening the hex bolt, then spin tool off anchor shaft by hand.
6. Slide socket drive and adaptor onto the square drive of the 501 tool and
on to the 5/16” nut of the installed anchor, tighten 50 – 100 in-lbs.
7. Remove socket, patch hole