PowerPointPrsentation

1
Efficiency Comparisons
Innovative Attachment Systems For Timber
Construction System WT
sdo, Juni 02
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Connection of Main and Secondary Purlins
Alternative 1 Bar Shoe 3 1/4 / 4 3/4 24
Grooved Nails 1/8 x 1 1/2
System WT 1 Pair WT-T-5/16x9 21/32

• 1,673 lbf.
• 1.5 Min. Installation Time
• 20 Total Cost Advantage
• Invisible
• Fire Resistant Connection

• 1,596 lbf.
• 5 Min. Installation Time

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Coupling Purlins
System WT 2 Pair WT-T-5/16x8 11/16
Alternative 2 Bulldog d 2 3/8 2 Plug Gages
M1/22 Washers

• 1,484 lbf. zul. Coupling Strength Per Side
• 3 Min. Installation Time
• 25 Total Cost Savings
• No re-tightening
• Secure Connection

• 1,574 lbf. zul. Coupling Strength Per Side
• 12 Min. Installation Time
• Must be re-tightened

4
Purlin / Rafter Connection
System WT 1 WT-T-5/16x8 11/16
Alternative 2 Rafter/Purlin Strap Type 210
1/16x1 Comb Nail 4x40

• 1,050 lbf.
• 0.33 Min. Installation Time
• 30 Total Cost Advantage
• Invisible
• Simple Installation
• Fire Resistant Connection

• 1,079 lbf.
• 2.5 Min. Installation Time
• Complex Assembly

5
Notched Fly Rafter Anchoring Bsp. Span 8/16
System WT 1 WT-T-1/4x6 5/16
Alternative Rafter Bolt 1/4x10 1/4

• 474 lbf. On Course
• 162 lbf. On Notch
• 0.3 Min. Installation Time
• 20 Total Cost Advantage
• No Pre-drilling
• No Splitting

• 346 lbf. On Course
• 252 lbf. On Notch
• 1.5 Min. Installation Time
• High Energy Expenditure (Torque)
• Pre-drilling Required

6
Reinforcement of Notched Purlins
Alternative Glued Thread Rod M 7/16, 11 13/16
System WT 2 WT-5/16x11 13/16

• 2,985 lbf.
• 1 Min. Installation Time
• 25 Total Cost Advantage
• No Pre-drilling
• Invisible
• Fire Resistant Connection
• Calculation Program

• 2,630 lbf.
• 3-5 Min. Installation Time
• Gluing may be Necessary

7
Dowelled Purlin (1) BspField inst., 274 lbf /
ft Uniformly Dist.,19 8.25 Span, QS 2 x 14/20
System WT 36 WT-T-5/16x11 13/16
Alternative 12 Insertion Peg Type C d4 9/16
Pin M 3/4 Washer

• 1,056 lbf. Thrust Attachment
• 15 Min. Installation Time
• 15 Total Cost Advantage
• Calculation Program
• Invisible, Fire Resistant Connection
• No Re-tightening

• 3,821 lbf. Thrust Attachment
• 50 Min. Installation TIme

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Dowelled Purlin (2) Bsp Field inst., 274 lbf /
ft Uniformly Dist., 6 m Span, QS 2 x 14/20
System WT 36 WT-T-5/16x11 13/16
Alternative 20 Bar Dowel d 3/4

• 1,057 lbf Thrust Connection
• 15 Min. Installation Time
• 10 Total Cost Advantage
• Calculation Program
• Connections on Site
• No Pre-drilling
• 100 Accuracy

• 2,068 lbf. Thrust Connection
• 30 Min. Installation Time

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Cross Stacking Bsp Thrust Attachment, down
lying connection a/HH lt 0.7
System WT 2 WT-Tx5/16x11 13/16
Alternative 2 Glued in Thread Bar M 7/16, 11
13/16

• 2,985 lbf.
• 0.66 Min. Installation Time
• 20 Total Cost Advantage
• Invisible
• No Pre-drilling, No Gluing
• Fire Resistant Connection

• 5,260 lbf.
• 5-8 Min. Installation Time
• No Smaller Diameters Permissible
• Gluing Necessary
• Down Time Between Treatments

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Course Connection with External Laps
Alternative 32 Nails 3/8 x 7 Pre-drilled
System WT 16 WT-T-5/16x7 1/2

• 5,013 lbf. Course and Thrust Force
• 6-8 Min. Installation Time
• Almost Invisible
• Rigid Connection
• No Pre-drilling
• Fire Resistant Connection

• 5,058 lbf.
• 8-10 Min. Installation Time