Masonry Magazine June 2009 Page. 37
By John Chrysler
assure that the installation will satisfy the structural integrity requirements. This may include continuous inspection of the masonry work, or be periodic observation at critical points in the construction process.
Non-essential facilities within high-seismic regions will also require inspection by an independent observer, but at a reduced frequency. This may be limited to verification of the grade, size and location of reinforcement and the grouting process. This is the most critical issue relative to the seismic performance of reinforced masonry.
The masonry design process has proven to be adequate as evidenced by the large inventory of structural masonry buildings on the West Coast and the frequency of the ground movement from seismic activity. The code requires that we satisfy the design with quality construction, and the independent inspection process is a practical manner that assures superior installation quality, providing structural integrity for decades. IMAS
John Chrysler, P.E., has been serving as the executive director of the Masonry Institute of America for the last 16 years. Prior to that, he worked for Masonry Builders Inc., a commercial contractor. Chrysler has been involved in the development of many publications relating to masonry and serves the industry in many other positions. He is currently president-elect of The Masonry Society. You can be reach him at jo@masonry.pro or 310-257-9000
holds the continuous wire in place in the bed joint of the veneer. The clip is hot-dipped galvanized along with the wire part (in this case, a hook), keeping only galvanized steel in the bed joint, a commonly accepted material in the mortar joint. The adjustable hook is part of a frequently used adjustable level eye joint reinforcing system used in multi-wythe walls (Figure
RAMG
SNAP
RamSnap Fasteners
RamSnapPro.com
READER SERVICE #209
Figure 3.
HOHMANN AND BARNARD, INC.
HB
A MITEK-BERKSHIRE HATHAWAY CO.
New!
HOHMANN & BARNARD
HB-200-X
www.h-b.com
800.645.0616
READER SERVICE #120
H&B has been manufacturing the HB-200 Veneer Anchor for over 10 years. The NEW HB-200-X improves upon the standard HB-200 by adding three pronged punchouts that project from the back of the anchor. The prongs prevent positive wind loads from crushing the wallboard by transferring these loads back to the stud. As with the standard H&B HB-200 system, the HB-200-X can be easily adapted for seismic zones by adding the H&B Seismic Hook and Continuous Wire. HB-200-X will accommodate 0-4" insulation thickness.
Patents Pending
Drawings for illustrative purposes only for specifics see www.b-b.com/MM609