Masonry Partitions

Purpose

To secure masonry partitions.

Recommendation

Install braces to the structure above.

Caution

  • Unreinforced masonry partitions are extremely hazardous and should be removed if possible.
  • When anchoring to post-tensioned slab, locate and avoid reinforcing.

Supplies Required

  • Clip angles—3" x 4" x 1/4" x 1'-3"
  • Expansion bolts—1/2" diameter (for concrete)
  • Larger imageConcrete Structure

    Source: Noson, Perbix, SSD

  • Channel (appropriate for wall width)
  • Angles—4" x 4" x 1/4"
  • Angles—3" x 3" x 1/4"
  • Drive pins—5/32" diameter (for steel)
  • Lag bolts—3/8" diameter x 3" (for wood)
  • Wood blocking—4x
  • Framing clips—Simpson A35


Installation

Larger imageSteel Structure

Source: Noson, Perbix, SSD

Concrete Building Installation

  1. Weld 3" angle braces at 4'-0" on center to continuous channel over wall.
  2. OR
    Install clip angles at 4'-0" on center each side of the wall.
  3. Attach the angles to the structure above with expansion bolts. Use two bolts for each clip angle.

Steel Building Installation

Larger imageWood Structure

Source: Noson, Perbix, SSD

  1. Install 3" angle braces at 4'-0" on center.
  2. Attach angle to the structure with drive-pins.
  3. Weld continuous 4" angle on each side of the partition to 3" angles.

Wood Building Installation

  1. Position 4x blocking between joists with framing clips.
  2. Install continuous 4" angle on each side of the wall.
  3. Attach angles to new 4x blocking with lag bolts at 4'-0" on center.

©2017 SCEC Southern California Earthquake Center @ USC