1996 LRFD Manual for Engineered Wood Construction

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GUIDELINELRFD MANUALTO LRFDFORFORENGINEEREDSTRUCTURALWOODCOMPOSITECONSTRUCTIONLUMBER 2121Contact ListOwnerLos Angeles Dept. of Water and PowerCity of Los Angeles111 N. Hope St., Room 1334Los Angeles, CA 900512Project ManagerS. J. Amoroso Construction Co.1516-B Brookhollow DriveSanta Ana, CA 92705-5426Roof InstallationAnning Johnson Co.13250 TempleCity of Industry, CA 91749PROJECT PROFILES: CASE STUDIESAMERICAN FOREST & PAPER ASSOCIATION
22 PROJECT PROFILES: CASE STUDIESResidential/CommercialMarriott Courtyard HotelsProject DescriptionBeginning in 1987, Marriott Corporation began buildinga series of Courtyard Hotels across the country utilizingengineered wood systems. To date 22 hotels have beencompleted with numerous others in various stages of planning.The Marriott Courtyard pictured above is 78,600square feet with 150 rooms situated on 1.6 acres. A majorityof the hotels will be smaller, approximately 45,000square feet with 48 rooms.These structures are typically three stories of woodframe construction built on a concrete slab. Each facilitycontains a small restaurant and lounge with meeting roomfacilities for group sizes up to 30.The selection of engineered wood construction wasdriven primarily by cost. Wood frame construction averaged$1200 to $1500 per room less than the otherconstruction systems. Total project costs for the 150-roomfacility was $5 million.These buildings are fully sprinklered, one-hour fireresistive construction carrying a R-1 Occupancy Class.From a code standpoint, these structures are viewed simplyas a “large house.”Materials SpecificationsLocally available, conventional dimension lumber wasused for most wall framing. A sound transmission classof 52 was achieved with either a staggered 2x4 stud wallor a 2x6 with resilient metal clips. 5/8 in. gypsum wallboardwas used throughout.Engineering ConsiderationsBecause the Marriott Corporation franchises thesehotels nationwide, all model building codes have beenconsidered (e.g., ICBO, BOCA, & SBCCI) in the designs.AMERICAN WOOD COUNCIL
Page 2 and 3: 1996 EDITIONLRFDLOAD AND RESISTANCE
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Page 6 and 7: iNotationAGross areaA nNet area, ne
Page 8 and 9: iiiP uCompressive or bearing force
Page 10 and 11: vGlossaryAdjusted resistance. The r
Page 12 and 13: viithickness (timbers), green shall
Page 14 and 15: ixPrefabricated wood I-joists. Pre-
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1996 LRFD Manual for Engineered Wood Construction

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