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Re: Unreinforced Masonry (URM) Upgrades

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Look into these:

1.  Seismic Strengthening Provisions for Unreinforced Masonry Bearing Wall
Buildings: Uniform Code for Building Conservation, Appendix Chapter One 1997
edition, published by the International Conference of building Officials.

2.  Commentary on Appendix Chapter 1 of the Uniform Code for Building
Conservation prepared by the Structural Engineers Association of California,
1992.  The Code has been updated since this commentary, but the basic concepts
are essentially the same.

3.  Methodology for Mitigation of Seismic Hazards in Existing Unreinforced
Masorny Buildings: the Methodology -- Topical Report 08 by ABK a Joint Venture
for the National Science Foundation . This is the 1984 report on the URM
research that led to the provision of item 1, above, as well as Chapter 88 of
the Los Angeles City Building Code.  It is a strength (not working stress)
approach to analysis and design.

4.  Guidelines foe the Evaluation of Historic Unreinforced Brick Masonry
Buildings in Earthquake Hazard Zones by ABK.  This has a detailed (and most
thorough that I know of) guide to evaluating URM buildings.

5.  Earthquake Hazard Reduction in Existing Buildings, chapter 88 of the 1994
edition of the Los Angeles City Building Code.

For items 3. and 4., try contacting the office of John Kariotis, 626-355-4184
-- they may still have them available for sale.

Nels Roselund
Structural Engineer