Groutless Masonry Anchors

The efficient and reliable transfer of horizontal forces between a masonry wall and the building frame is critical to the stability of the building and it’s main components. This is easily achieved with theTwist-On™ Wall Anchors.

Download PDF File - "Installation and design Notes For the Twist-on™ Groutless Masonry Anchor System"

Download 3-D cad file #1
Download 3-D Cad File #2
Download 3-D Cad File #3

Twist-On™ Groutless Test Data

Groutless Submittal Sheet and Test Data - PDF
Twist-On™ Groutless Anchor
PATENT# 7,171,788 B2
 
PERIMETER BEAM ATTACHMENT

Masonty Anchor at 48" O.C. MAX.

  1. Weld 3/4" Vertical Sliding Bar at 48" O.C. Max. - along the perimeter beam
  2. Weld bar to top & bottom flange - Provide 1" clear to web.
  3. Bar to be plumb after steel is erected.
  4. Install one # 395 Twist-On™ T-Type Groutless Anchor as manufatured by Heckmann Building Products, Inc. - ar each vertical sliding bar.
  5. Place anchor as close as practical to mid-depth of beam. Provide minimum 3" clear above, to allow free deflection of beam.
  6. Place anchor so that the anchor bar intersects not less than one block web on each slide. Anchor can be flipped if required.
  7. Embed anchor in full bed of mortar. Place mortar below and above anchor for the full width of the block, so as to create continous mortar bed front to back.
PERIMETER JOIST ATTACHMENT

Masonty Anchor at 48" O.C. MAX.

  1. Weld 3/4" Vertical Sliding Bar at 48" O.C. Max. - along the perimeter joist.
  2. Weld bar to top & bottom chord - between or to ourside face of chord.
  3. Bar to be plumb after steel is erected.
  4. Install one # 395 Twist-On™ T-Type Groutless Anchor as manufatured by Heckmann Building Products, Inc. - ar each vertical sliding bar.
  5. Place anchor as close as practical totop chord of joist. Provide minimum 3" clear above, to allow free deflection of beam.
  6. Place anchor so that the anchor bar intersects not less than one block web on each slide. Anchor can be flipped if required.
  7. Embed anchor in full bed of mortar. Place mortar below and above anchor for the full width of the block, so as to create continous mortar bed front to back.
EXISTING MASONRY ANCHOR SYSTEMS

The most common methods of anchoring a masonry wall to a steel beam or girder are:

  1. 1 ½" - 12 ga. steel plate bent to hook around the far edge of the beam or the truss flange and embedded in the masonry wall mortar bed. (The top of the beam and the mortar joint must line up to use this system. Also, the anchor does not allow for deflection!)
  1. ½" wide - 12 ga. steel plate hooked into a vertical slotted channel welded to the web of a steel beam and embedded in the masonry wall mortar bed. (This method cannot be applied to open web truss such as joist, joist girder etc. The slot in the anchor is 5" and the CMU is 8" - you have a 5/8 chance of the joint lining up with the slot).
GROUTLESS MASONRY ANCHOR SYSTEM
To correct the drawbacks in the existing masonry anchor system, and to comply with the design criteria for masonry anchors, Heckmann Building Products Inc. is introducing a new Masonry Anchor System

The Twist-On™ Hook allows you to connect a masonry wall to Joist, Joist Girder or any other Truss as well as to a Castelated or Rolled Beam, while allowing free deflection. The anchor hooks to a Vertical Sliding Bar welded to the steel member.
A Corrugated Anchor Bar welded to the Wall Anchor provides secure anchorage in the mortar bed, without grouting, even in hollow block masonry. It remains effective even when the embedment depth differs with the varying distance between the steel and the masonry wall, as allowed by the construction tolerances. This is designed to save time & money as well as to provide a more reliable system with less quality control required. The connection between the anchor and the vertical sliding bar allows for deflection.
Vertical Sliding Rail welded to Joist
Vertical Sliding Rail welded to Beam
Groutless Anchor attached to Sliding Rail
View from interior of building
SYSTEM BENEFITS

1. Allows the use of joists and joist girders along the perimeter of the building, while anchoring the masonry wall to the open web members with the same efficiency as to a rolled steel member. This can reduce significantly the total cost of the steel framing.

2. Allows the placement of the beam, joist, or joist girder along the wall, rather than built into the wall, while assuring proper connection to the masonry.

3. Allows the use of the masonry wall as a shear wall more often, because the connection is stronger and more reliable. If necessary, two anchors can be installed on a single vertical sliding bar, thus increasing the total shear resistance of the system in a very economical way.

There are two types of Twist-On™ Wall Anchors:

No. 394 Twist-On™ I Type Wall Anchor:

Equipped with the Twist-On™ Hook that will attach to a joist, joist girder or any type of truss or beam with a welded vertical sliding bar. The embedded part is corrugated. The standard is 11 gage thick x 3-1/4” wide, Hotdip Galvanized After Fabrication. The Twist-on™ hook can be fabricated for 1/ 2", 3/4", or 1" square bar. Specify length to suit masonry wall thickness and distance to steel. Use with solid or grouted masonry walls.

No.395 Twist-On™ T-Type Groutless Wall Anchor:

11gage thick x 3-1/4” wide with the Twist-On™ Hook on one end and with a 1-1/ 2" x 16" long Corrugated Anchor Bar factory-welded onto the other end. The Twist-On™ Hook will attach to a joist, joist girder or any type of truss or beam with a welded vertical sliding bar.

Click HERE for Test Report on #395 Twist-On™ T-Type Anchor
The "T" type anchor, with its groutless advantages is also available for backup walls with
DOVETAIL and CHANNEL SLOTconnections.

Heckmann Home Page Back To Top