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Wall Tie-In Anchor
Wall Tie-In Anchor SystemOur regular Wall Tie-In Bracket is an adjustable arm that hooks into a 3/8 eye-bolt with a nut embedded deep in the masonry veneer, then reaches over and clamps to the tower. Our customers have always loved the simplicity of pointing up only one small hole when they bring the scaffold down and unscrew the eye-bolt out of the wall, leaving the nut buried deep in the wall.
The custom and practice of the industry is for the scaffold anchorage to resist a typical 250-pound tipping force to keep a typical scaffold upright. The anchor is not asked to support the entire weight of the scaffold. The eyebolt is embedded in the masonry the day before the bracket is attached. As the scaffold is cranked up the next day, the eyebolt becomes visible below the work platform. This is when the Wall Tie-In Bracket is attached. Day-old masonry has more than 80% of its 28-day strength and is well able to resist much more than a 250-pound pull.
We know of zero instances where either the eyebolt or the veneer has failed.
ADVANTAGES:• Just point up one small 3/8” hole. The nut is buried deep in the wall so there is no chance of rust stains.
• Economical. Re-use the eyebolt and replace one 4-cent nut.
• Does not compromise the integrity of the insulation or the vapor barrier.
• You do not have to leave units out of the wall and patch them in later (they never match).
The anchor you see below is an alternative attachment used when the normal method shown above is not feasible or practical for one reason or another.
Some contractors have asked for a way to tie the scaffold to the back-up wall, a concrete floor deck, or the steel structure, normally above the work platform.
The old way was to use a snap-off tie (see picture, right) that fastens to the building and has a piece of flat steel with a hole in it that extends (theoretically) through the mortar joint. Our Wall Tie-In Bracket later hooks into that hole. The flat steel is scored so the end can be snapped off. A common problem with installing this anchor above the working level is that, when you do get the veneer up to it, it never lands in a bed joint and you have to leave a brick or block out.
When the scaffold is brought down, the tie bracket is removed, the end of the snap tie is snapped off, and the slot is pointed up. The problem is that most of the time the snap-off tie doesn't snap like it should. Then you have to get a grinder and grind it off. And you have to grind it back beyond the surface of the veneer so that when you point it up, it is sealed off. If it's not sealed off, you'll get rust stains down the face of the wall (even though it started out plated, when you cut it off you expose a raw metal end). All of this is very time-consuming and expensive.
Non-Stop's SolutionSince our customers love our adjustable Wall Tie-In Bracket, and how easy it is to simply unscrew the eye-bolt when you bring the scaffold down, we decided to design an anchor that uses those parts.
The green anchor you see in the picture above can be attached to the back-up wall, the floor slab, or welded to the structure. It is threaded to receive our 3/8 eye-bolt, and the other end has a 1/2-inch hole for your fastener. They are made in different lengths to accommodate different cavity sizes. Different length eye-bolts are available for different veneer thicknesses. If you use them to tie the scaffold above the work platform, everything fits right when you cover them over with the veneer.
It can be placed in the either the head joint or bed joint of brick veneer simply by rotating the anchor to put the eye-bolt in a joint.
Before use, coat the eye-bolt with oil, or wrap a piece of paper around it, and it will unscrew out of the wall in just a few seconds.
We have been asked if the anchors should be plated or stainless. That's commonly what you see for the anchors that fasten the veneer to the building, or other structural applications. According to the codes, that is mandatory for permanent structural anchors, but not for a temporary anchor abandoned in a cavity. In most cases we supply them as a plain steel anchor.
ADVANTAGES:• FAST. No grinding or bending. Just point up one small 3/8” hole.
• No huge holes to patch - no material mis-matches.
• No rust stains. The anchor is abandoned deep behind the veneer.
• Made of 1/4” thick steel. Twice the metal to weld to compared to snap-off ties.
• Quickly installed with conventional fasteners through the 1/2” hole, or weld it to the structure.
Anchor Prices:• 1” to 4” cavity: $6.00
• 4” to 8” cavity: $7.25
Specify anchor working length when ordering.
Re-Usable Eye-Bolt Prices:3/8 x 4-inch: $2.75
3/8 x 6-inch: $2.95
3/8 x 8-inch: $3.25
3/8 x 10-inch: $3.65
Turned eye-bolts furnished by Non-Stop are welded shut to achieve rated strength. Lengths can be extended with 3/8 all-thread rod.
UPS shipping is additional. Larger orders may go motor freight.
Last Modified: March 18, 2013
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