1.0 INTRODUCTION te ba
Glotman.Simpson was engaged by Gary Manning, Safety-in-Training Officer of the
City of Port Coquitlam, to provide a seismic review of the structure. Our review is

based on the following drawings which were provided to us:

1, Structural drawings §.2 to $.5, by Choukalos, Woodburn & McKenzie Ltd., dated
September 29, 1975.

This information was used in our review.

No geotechnical information was provided and no information is given on the
drawings about design bearing pressures. However, we have calculated the loads on
some of the bearing wall footings, and we estimate the bearing pressures used to be
approximately 3,000 lbs per sq.ft. We have therefore assumed the foundation factor
F=1.0 for our seismic evaluation. The drawings state that the building was designed
in accordance with the National Building Code of Canada 1975.

2.0 BUILDING DESCRIPTION

The Northside Fire Hall was designed in the fall of 1975 and we would assume it was
built at that time. The main fire hall building consists of a two storey building. The
second floor structure consists of 2" of apparently unreinforced concrete topping over
12" deep precast hollow core floor units supported on load bearing masonry walls with
reinforced cores. ‘The reinforced masonry walls are supported by concrete strip
footings. 7 5/8" wide concrete beams are used as a bond beam or lintel beam over the
door openings. The roof structure consists of long span steel joists spanning 46' in the
North South direction which is covered with a 1 4" deep 22 gauge metal decking. No
information is given for the welding attachments for the deck diaphragm. The joists
are supported by structural steel beams around the perimeter of the roof which are
supported by 2nd storey steel columns that bear on reinforced cores in the bottom
Storey masonry wall. Large door openings are provided as required for fire truck
access on the east and west walls.

At the south side of the main 2 storey building, a one storey building is attached. This
one storey section has a wood roof which consists of 14" plywood decking over 20"

deep “wood bar" joists supported by 8° forced. masonry walls around the
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