6262 Braced wall panel construction methods The construction of braced wall

6262 braced wall panel construction methods the

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6.2.6.2 Braced wall panel construction methods The construction of braced wall panels shall be in accordance with one of the following methods: a) nominal 25 mm by 100 mm continuous diagonal braces let in to the top and bottom plates and the intervening studs or fixed by metal strap devices installed in accordance with the manufacturer's specifications. The let-in bracing shall be placed at an angle not more than 60 degrees or less than 45 degrees from the horizontal; b) wooden boards of 16 mm minimum net thickness applied diagonally on studs spaced a maximum of 600mm on centres; c) wood structural panel sheathing with a thickness not less than 8 mm for 400 mm stud spacing and not less than 10 mm for 600 mm stud spacing; or 1.5 mm metal tie across and to each side of the notch Exterior or bearing wall Pipe Top plates Notch greater than 50%
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PCTTS 599: 20XX 113 d) 13 mm or 19 mm thick structural fibreboard sheathing applied vertically on studs spaced a maximum of 400mm on centres. For methods b), c) and d) above, each braced wall panel shall be at least 1200 mm in length, covering a minimum of three stud spaces where studs are spaced 400 mm on centres and covering a minimum of two stud spaces where studs are spaced 600 mm on centres. All vertical joints of panel sheathing shall occur over studs. Horizontal joints in braced wall panels shall occur over blocking of a minimum of 40 mm thickness. 6.2.6.3 Fastening and anchoring Braced wall panel sole plates shall be fastened to the floor framing and top plates shall be connected to the framing above. Where joists are perpendicular to the braced wall lines above, blocking shall be provided under and in line with the braced wall panel. Braced wall line sills shall be anchored to concrete or masonry foundations. Plate washers, a minimum 6 mm x 50 mm x 50 mm in size, shall be provided between the foundation sill plate and the nut. Interior braced wall lines shall be fastened to floor and roof framing. Floor joists parallel to the top plate shall be toe -nailed to the top plate with at least 8d nails spaced a maximum of 150 mm on centres. Top plate laps shall be face -nailed with at least 8d to 16d nails on each side of the splice. 6.2.7 Cripple walls Foundation cripple walls shall be framed using studs not less in size than the studding for walls. When exceeding 1.2 m in height, such walls shall be framed of studs having the size required for an additional storey (see Figure 6- 22 ). Cripple walls shall be braced with an amount and type of bracing as required for the walls plus an additional 15 percent of braced wall length or a maximum braced wall panel spacing of 5.5 m. Cripple walls with a stud height less than 350 mm shall be sheathed on at least one side with a wood structural panel that is fastened to both the top and bottom plates, or the cripple walls shall be constructed of solid blocking. Cripple walls shall be supported on continuous foundations.
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