MiTek User Guide MIUG-0025 Hold Down Details In Blockwork
Contents
1. FH MiTek MiTek User Guide MIUG 0025 Hold Down Details In Blockwork Introduction Details on this sheet provide fixing arrangements and capacities for hold down details in blockwork designed in MiTek software Table 1 gives maximum allowable uplift forces for each hold down fixing arrangement to single double and triple truss heel joints Reading the Chart 1 Use MiTek software to design the truss and bracket fixing required based on fixing arrangements listed in Table 1 For further assistance with Hold down details in Blockwork contact your nearest MiTek Engineering Design Office Page 1 of 3 MiTek AUSTRALIA LTD A C N 004 564 587 Issue 5 28 05 07 MiTek E User Guide MIUG 0025 Hold Down Details In Blockwork Table 1 Truss Hold Details to Blockwork Bracket Joint Type Fixing Fixing Description Design Capacity kN Type in Type Mitek 4i Joint Group 20 20 J2 J33 J4 JD4 JD5 JD6 JD2 JD3 Truss gt Bo 1 200x50x5mm cleat of 1A 1 12mm cuphead bolt 10 16 11 8 i J4 JD6 w Cleat Blockwork sI z Nis horiz sieel 1 200x50x5mm cleat MIUG25 reimorcementral 4B 1 16mm cuphead bolt 20 15 through cleat J2 J3 JD2 JD3 NI2 vert steel 1 200x50x5mm cleat reintorcemen ar next to i cleat anchored to foundatio 1C 1 M12 Bolt with 50mm 20 15 10 16 11 8 washers for all joint groups Overstrap 1 200x50x5mm cleat 2A 1 M16 bolt for J2 amp J3 34 25 7 75 mi2. nimum JD2 JD3 y typical MIUG25 N16 horiz steel lt reinforcement b through cleat 1 200x50x5mm cleat 1 M12 HS Bolt for J4 y N12 vert steel 2B z 16 23 18 15 reinforcement bar next to to JD6 50x3mm cleat anchored to foundatid overstrap lt Double Truss Minimum 1 200x65x5mm cleat S Overstap 1 M16 HS Bolt 50x3mm overstrap N16 horiz steel Pack overstrap tightly MIUG25 reinforcement bal 3A with non compressive 49 44 28 44 36 28 sac Seca Ge through cleat material Double 35mm truss a N16 vert steel Min reinforcement bar next to cleat anchored to foundati 2 200x65x5mm cleats 1 M16 HS Bolt 50x3mm overstrap a Double or Triple 4A Pack overstrap tightly 76 54 E X _ _ Truss Minimum with non compressive lt material Overstrap Double 35mm truss MIUG25 in N16 horiz steel reinforcement bar 2 200x65x5mm cleats through cleat 1 M16 HS Bolt 50x3mm overstrap Ni e vert Real i 4B Pack overstrap tightly 34 54 43 34 reintorcemen ar next to H R cleat anchored to foundatio with Non COMprlessive material Triple 35mm truss Min MiTek AUSTRALIA LTD a cn 004 564 587 Page 2 of 3 Issue 5 28 05 07 MiTek User Guide MIUG 0025 e ok A wml Hold Down Details In Blockwork Notes 1 Bolt through or above truss heel plate 2 For girder trusses in commercial buildings multiply the design capacity by 0 85 References 1 An Investigation of Truss Hold Down TR No 44 Jame
3. s Cook University Cyclone Testing Station October 1996 2 An Investigation of Bond Beam Truss Hold Down Connections TR No 49 Cyclone Testing Station February 2003 3 AS 1720 1 Timber Structures Code Standards Australia 1997 Page 3 of 3 MiTek AUSTRALIA LTD A C N 004 564 587 Issue 5 28 05 07
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