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might separate in a major earthquake (NBC 1990 earthquake) which might result in
collapse of the structure.

The foundations in the North South directions particularly would not meet all the
requirements of the 1990 NBC code.

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6.0 PROPOSED REMEDIAL WORK

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In order to upgrade the structure to full compliance with the NBC 1990 code, most of
the structural system would require strengthening to various degrees. Additional
resisting elements in the North South direction plus connections would : required,
some strengthening of the walls or additional elements in the East Wt direction
would be added; connections between roof and floor and walls would .¢ required.
Floor and roof diaphragms would require upgrading - the amount of work required
here is difficult to estimate since information is lacking on the drawings. Steel bracing
in the upper storey would be added and some foundation work might be required
which would be difficult and expensive to do.

Our estimated cost for the above structural work would be in the $75,000 to $125,000
range. Our cost estimate is preliminary and is based on similar work on other projects
and does not include architectural work which might be required. As well, final cost
can only be established when structural drawings are complete and further on site
information is obtained as discussed above.

We would point out that a more cost effective upgrading might be obtained if the
building is not strengthened to the full requirements of the NBC 1990 code. This
might be done as follows:

1. Provide structural steel frames capable of carrying the lateral load of the 2 storey
building in the North South direction which would be installed adjacent to the large
doors on the East and West sides of the building. These frames would be solidly
connected to the precast floor above and would require additional foundations
under the ficor at each end.

2. Provide solid connections between the floors and walls.

3. Add steel bracing in the upper storey steel stn
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