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T � • • <br />PSM <br />CpNSULI�ING ENr�;l��i I It; <br />November 15, 2013 <br />Everett Community College <br />Olympus Hall <br />ASCE 31-03 Seismic Study <br />Buildin Summar <br />StOI'les 2 at Concrete porte-cochere & 1(over crawlspace) at Wood building <br />W]❑ S <br />S UaI'C fOOta e 17,200 (Concrete porte-cochere) & 14,300 (Wood building wings) <br />Construction Type Concrete moment frame with beams & slab; 2x Decking on wood <br />framin . <br />Foundation T e Conventional (allowabie bearing pressure is 4000 psfl <br />Year Constructed 1956 <br />Use Office/Instructional Area <br />Performance Level Life Safcty <br />ASCE 31 Checklists ci, c�-s, w2 & w2-s <br />Build'ln Code Unknown <br />Potential Deficiencies • Insufticient in-plane shear strength of wood shear walls. <br />• Shear walls have apparendy been removed in recent remodeling <br />eflorts. <br />• Wood shcar walls do not have complete load path to the foundation. <br />• Inadequate collector elements to wood shear walls. <br />• Inadequate strength of wood diaphragms. <br />• Concrete moment frame columns have insufficient stren th <br />Further Analysis and Design Should the building be subject to renovation, some seismic upgrade <br />work is recommended. This work should include the re-establishment <br />of the wood shear wall removed earlier. <br />Summary Report <br />This building was built in 1956. The original construction drawings <br />were provided to us. This building has a two story porte-cochere at <br />the west side, consisting of a single story concrete moment frame <br />platform supporting wood construction. The north & south wings of <br />the building are one story wood structures, above a crawlspace. At <br />the porte-cochere the concrete slab acts as diaphragm and transfers <br />loads to concrete moment frames consisting of concrete columns and <br />concrete beams. At the wood portion of the building, the 2x decking <br />is supported on wood beams and posts. Steel strap bracing <br />constitutes the horizontal diaphragm at these areas. No exterior wood shear walls were provided in the <br />SEA�r�r�..E: b+i:ait�l��,�iut� 9h121 US,�A <br />1-,�x 2U6-(��2-U-�'? <br />