Masonry Magazine April 1968 Page. 17
Load-Bearing C/M Seminar
The Northern California Concrete Masonry Association held its "High Rise Load-Bearing Concrete Masonry Seminar" on March 12th at the Hilton Inn, San Francisco Airport. 145 invited guests from the building design field attended and expressed tremendous interest in the program.
The first seminar session started at 3:30 p.m. Presentations by guest speakers carried the program to 6 p.m. cocktail and dinner. A panel discussion began at 7:30 and ran through 8:30 p.m.
Kenneth H. Best, President of the NCCMA opened the meeting and welcomed guests and commented particularly on the fact that the excellent attendance could be directly attributable to the great interest in "High Rise" masonry construction. Bob Harrington, Manager of the Unit Masonry Association of Northern California was moderator during the discussion periods.
Two well-known guest speakers spearheaded the informative meeting. The first, Robert F. Higgins, Sales Manager of Hazard Products, Inc., San Diego, California, discussed the "economic feasibility of high-rise construction," and presented slide information relating to the high rise addition to the Hanalei Hotel. In introducing the subject of "high rise masonry construction," Higgins said, "I'm expected to tell you and show you it can be done and then Albyn Mackintosh will follow up in telling you "how it can be done!" "We, of course, mean that it is possible to design and build multi-story buildings, in our Zone 3 earthquake area on the West Coast, using bearing walls up to 4, 6, 8, 10 and 12 stories." Higgins continued to explain the "high rise" system referred to by some as the Modern Masonry Bearing Wall system or Engineered Masonry.
The second speaker on the program was Albyn Mackintosh, President of Mackintosh & Mackintosh, Inc., Consulting Engineers, Los Angeles. Mackintosh supplemented his talk with slides illustrating the engineering feasibility of high rise load-bearing concrete masonry construction. He also emphasized that it is easy to design in masonry within the limits of the Uniform Building Code. He also described the engineering aspects of several buildings he has personally engineered in masonry in Southern California.
Following the lively discussion during the after-dinner Panel program, moderator Bob Harrington commented.
EMBOSSED MASONRY REINFORCING
EMBOSSED MASONRY REINFORCING has these PROVEN ADVANTAGES
Pictured left to right at the March NCCMA meeting, are: Bob Harrington, Manager of the Unit Masonry Association of Northern California: Kenneth H. Best, President of NCCMA: Albyn Mackintosh, President of Mackintosh & Mackintosh, Inc., Los Angeles; and Robert F. Higgins, Sales Manager of Hazard Products, Inc., San Diego.
Embossed side rods are not weakened by deformation or scoring. The result is higher tensile strength and mortar bond. Shear stress is on the steel and compression on the mortar as it should be for maximum strength!
All wires flush welded in same plane for best and most economical" mortar joints. No overhanging cross wires to tear the mason's hands. This uniform over-all thickness assures thinner and tighter uniform joints, facilitates visual field inspection, reduces material and labor costs.