2702 HOYT AVE 2018-01-02 MF Import

( TRUCTURAL DESIGN ASS%, ;IATES, INC. CONSULTING ENGINEERS 5630-198THST. SW PO.Box 5366 LYNNWOOD. WA 96046 PHONE 2061115.7A34 May 10, 1990 Cree Construction. Co., Inc. attn: Mr John Dullanty Box C 36003 Lynnwood, WA 98046 subject: City of Everett Library Addition -REMODEL OF ELKS PARKING GARAGE - Our Ref.: Inspection\92-320.kve The undersigned visited the referenced parking garage on May 5, 1990, in the presence of Mr. John Dullanty of Cree Construction Co., Inc. Mr. Dullanty showed the details on the drawing pertaining to the remodel of the most northerly bay and the reconstruction of the exposed edge. The contract documents show the replacement of the present columns with new columns having much deeper footings. The present beams on that column are in extremely poor condition, having major cracks in the spans. Another concern is the lack of continuity of the deck, which is supposed to be the diaphragm that transfers shears to the perimeter walls. The cast -in -place concrete beams extend to the surface of the concrete topping and their tops are exposed to the weather. Joint material was used to close the gaps between the beams, but much of it has been missing for years, allowing storm water to enter the joints, causing the welded connections between the Tee - stems and the ledgers to deteriorate badly. The lack of continuity reinforcing in the topping, coupled with the poor connection between the Tees and the beams are structurally unacceptable and need to be corrected. Considering the poor condition of the beam, the undersigned recommends that a continuous concrete wall, instead of the specified columns, be installed to support the entire length of the beam. This wall will also act as a shear wall, which would be lacking if the columns were to be installed as specified. The wall will also act as a shear wall and basically replace the present continuous shear wall. The small length of wall at the west end of the beam appears to be inadequate to function as a shear wall, especially considering the fact that little engineering technology has been applied to this project in earlier days. Installing the wall flush with the ends of the southerly ledge will alleviate some but not all of the problems. At least the condition will be substantially safer. 5)