05-D Animal Shelter Contract - Laserfiche WebLink

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Division 3-B Conc. Reinf. ~'PLACING REINFORCING: All reinforcing shall be free from rust, or any coating which may reduce bond and of size and location shown. Steel for beam reinforcinq shall be tied at all intersections and supported with hangers during the placing of concrete. All reinforcing shall be supported on.., chairs, spacers, and ties to support steel in the location shown on plans and to comply with the recommendations of the Concrete Reinforcing Steel Institute. Clear minimum coverage of concrete over reinforcing bars shall be as follows: Formed concrete against earth---------------- 2" Beams to ties/stirrups----------------------- 1 4" Top and bottom of slabs---------------------- 3/4" In places where beams intersect to form an "L" or "T" the reinforcing steel shall extend to the far side of the intersected beam. In addition, provide an "L" shaped bar for each beam bar; each leg, being 30 bar diameters long and same size as beam bar. Wire securely to adjacent steel ~ as shown and detailed. Unless otherwise shown, continuous top steel shall be spliced at midspan, and continuous bottom steel shall be spliced over piers, and shal'1 lap 40 bar diameter. Where reinforced concrete beams "dead end" or terminate, the top and bottom reinforcing steel shall hook. WIRE MESH: Lap all wire mesh 6" each way and tie wire 24" o.c. at lap. Mesh shall be in top half of slab, extend to 2" of edge of slab and tie to slab edge bar. LAPS IN REINFORCING: All floor slab rods shall lap 30 bar diameters minimum. All dowels and tie bars shall lap 30 bar diameter into each pour. All beam steel shall lap 40 bar diameters. NOTE: 30 bar diameter laps are as follows: No. 3 Rod 12", No. 9 Rod 15", No. 5 Rod 19", No. 6 Rod 23" 40 bar diameter laps are as follows: No. 4 Rod 20", No. 5 Rod 25", - No. 6 Rod 30". 18