2008-00142 - new structure - Laserfiche WebLink

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� Unless otherwise noted, wall footings are centered under walls and column footings under columns. Footing elevations shown on plan are to top of footing. Footings for walls, unless otherwise noted, shall be 10"thick with a minimum projection of 4"each side with 2-#5 continuous. SLABS ON GRADE All slabs on grade, unless otherwise noted, shall be 4"thick with 6x6-W1.4xW1.4 WWF centered in slab. All stair slabs on grade, unless otherwise noted, shall be 4"thick with 6x6-W1.4xW1.4 WWF centered in slab. POURED CONCRETE WALLS Unless otherwise noted on plans or sections, reinforce poured concrete walls with#5 verticals at 24"on center inside face and#5 horizontals at 24"on center inside face. Provide#5 x 4'-0" (2'-0" each leg)corner bars at 24"on center, horizontal reinforcing, at corner of wall with 3-#5 vertical support bars. All wall openings larger than 12"shall have 2-#5 all sides of openings. Extend reinforcing 2'-0" beyond each edge of opening. Wall reinforcing is continuous through columns. PRECAST CONCRETE UNITS The design of all precast concrete units shall conform to A.C.I. 318-83. Prestress units must sustain the loads indicated in addition to all other dead loads. Plank shall be prestressed hollow-core slabs, proportioned for the loads noted on the drawings. Upon installation, plank shall be essentially past the effects of deformation due to creep, and shall have camber not over L/360 of the span. Such camber shall be uniform from plank to plank. All headers at openings in precast shall be furnished by the precast supplier. Place mechanical openings, not shown on plans, between webs in the precast plank units. Submit complete shop drawings to architect for approval, showing the erection plan, all bearing conditions, and anchorage details. Calculations certified by a professional engineer will be required for precast units and anchorages. STRUCTURAL STEEL All structural steel shall be designed, fabricated and erected according to the American Institute of Steel Construction (A.I.S.C.)standard specifications. Structural steel supplier shall supply all cap plates, bearing assemblies, base plates, stiffeners, splices, connections and shall design same unless noted on drawings. All welding shall be done using the shielded arc process using E70 electrodes in accordance with the rules of the American Welding Society(A.W.S.)Structural Welding Code. All welders shall be certified using the rules of the American Welding Society. DIMENSION LUMBER Dimension lumber shall be No. 2 hem Fir or equal for joists, beams and headers. Wall studs shall be Stud Grade SPF or equal. Spacing of bridging for joists shall not exceed 8'-0". Wood lintels and headers shall have a full 1'/z" length of bearing at each end unless notes otherwise. Double all joists under parallel partitions. All beams and joists not bearing on supporting members shall be framed with"Simpson Strong-Tie"joist hangers or equal. Interior walls to have 2x4 studs at 16"on center. Exterior walls to have 2x6 studs at 16"on center. Wood joists shall bear the full width of supporting members(stud wall, beams, etc.)unless otherwise noted. Wood beams made of 2 or more 2x's shall be bolted together with 3/8"diameter through bolts at 2'-0"on center or equivalent spikes. Sill plates to be bolted to foundation walls with '/z"diameter anchor bolts at 4'-0"on center maximum to extend 15" minimum into grouted masonry. Each sill plate to have a minimum of 2 bolts with one bolt located within 12"of each end of each piece. Nailing to be in accordance with Table 2304.9.1 of the I.B.C.