Masonry Magazine December 1982 Page. 16
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16 MASONRY-NOVEMBER/DECEMBER, 1982
CANADIAN RESEARCH PROGRAMS
continued from page 15
scientific understanding of masonry leading to improved material testing procedures and better control of structural behavior. One project involves long-term deflections of masonry elements under constant load with significant potential implications for design codes. A second project is examining detailed effects of the shape of concrete block cross-sections on strength.
University of Manitoba
Principal Investigator: Prof. John Glanville.
Current Objective: Effects of Differential Temperatures on Masonry Elements.
Different temperatures in different parts of a building, i.e., the interior and exterior of a wall, can lead to cracking. The problem is seen most frequently where the temperature differences are large, as occurs on the prairies. Any cracking results in the redistribution of load in the building and reduces resistance to wind loading. The objective of the current research is to provide some understanding of what goes on when a large temperature difference occurs and to produce some guidelines for structural design.
Centre for Research & Development In Masonry
Principal Investigator: Dr. Emlyn Jessop.
Current Objectives: State-of-the-Art Report on Masonry Connectors.
There is great concern over connectors among designers due to such factors as corrosion problems, the use of more energy-efficient systems, the use of new wall systems such as steel studs, and long-term problems such as T intersections and panel anchors. The Centre, which is funded primarily by other organizations, has been awarded a Council grant to summarize the present state of knowledge and recommend future research directions.
Carleton University
Principal Investigator: Prof. Gary Suter.
Current Objectives: Differential Movements Between Masonry Veneer and Loadbearing Wythes.
With the help of major funding from other agencies as well as the Council, as existing highrise building in Ottawa will be instrumented and, with the aid of a computer, movements will be monitored. These measurements are intended to help reduce the incidence of veneer cracking and connector failures.
University of Saskatchewan-Saskatoon
Principal Investigator: Prof. Vern Neiss.
Current Objectives: Masonry Shear Wall Connectors.
This is an area of critical concern in the design of multi-story buildings, and it is hoped the study will prove to be of significant benefit to the masonry industry. Completion of a new structural testing laboratory at the university permits the testing of full-scale walls with a variety of shapes and patterns so that a reasonably complete study can be accomplished.
McMaster University
Principal Investigator: Prof. R.G. Drysdale.
Current Objectives: Various Projects In Masonry Design.
Hundreds of plain and reinforced masonry units, prisms and walls have been tested in this program. Most of these studies have been aimed at better understanding the failure mechanisms of masonry in combination with grout and steel. Other studies have looked at problems of field quality control, anchor bolts, and the effects of workman-