CDN
WoodWorks® Design Office Sizer | Shearwalls | Connections | Database Editor
2017 User Guide – Canadian Connections Tutorial Instructions For Design Office 9
Canadian Wood Council American Wood Council
Developed by Acronym Software Inc.
Limited Warranty The American Wood Council and the Canadian Wood Council make no representations or warranties with respect to the contents of this user guide and specifically disclaim any implied warranties of merchantability or fitness for any particular purpose. The contents of this documentation may include technical inaccuracies or typographical errors. The American Wood Council and the Canadian Wood Council disclaim all warranties with respect to the software contained on disk or in printed form, including all expressed or implied warranties of merchantability and fitness; and any stated or expressed warranties are in lieu of all obligations or liabilities of the American Wood Council and the Canadian Wood Council for damages, including, but not limited to special, indirect or consequential damages arising out of or in connection with the performance of the software. As always, the engineer is ultimately responsible for his or her design. Refer to Read Me for further information.
© 2017 Copyright by CWC
Connections Tutorial 1 – Bolt Connection for Diagonal Brace (CDN) 1.1
Introduction
Click here to download the connections file (.des) created from going through this tutorial.
1.2
Connection Type
1. Click the New button on the toolbar. 2. Select the connection type Lapped Shear, Wood-to-wood with a Skew, two side members configuration. 3. Click on OK.
Connections Tutorial 1 – Selecting Connection Type
1.3
Connection Details Main Member 1. 2. 3. 4. 5. 6.
Specify Material to Glulam-EX. Specify Species as D.Fir-L. Specify Grade as 20f-EX. Specify Thickness as 80 mm. Specify Width as 228 mm. Specify the End Type as Extended.
Connections Tutorial 1 – Specifying details for Main Member
Side Members 1. 2. 3. 4. 5. 6. 7. 8.
Specify Material to Lumber-joist. Specify Species as Hem-fir. Specify Grade as No.1/No.2. Specify Thickness as 38 mm. Specify Width as 140 mm. Specify a Slope of 45 degrees. Input a Force of 6 kN. Specify a Load Duration of Permanent.
Connections Tutorial 1 – Specify details of Side Members
1.4
Review and Accept Design Results
Once a load has been input, Connections will automatically complete the design, and a drawing of the connection will automatically generate on the Details screen. At this point, it is possible to review the Diagram, Results and Accept the design. For this example, one ¾ inch bolt was found to be adequate in resisting the specified load. Both the Diagram and Results can quickly be printed using the Print icon. Click here to download a pdf of the design results. Click here to download a pdf of the diagram.
Connections Tutorial 1 – Review Results
Connections Tutorial 2 – Beam to Column Bolt Connection (Canadian) 2.1 Introduction This tutorial goes over the design of a bolt connection between a beam and column. The problem is the same as example 1 on page 272 of the 2015 edition of the Canadian Wood Council Wood Design Manual.
Click here to download a copy of the connections file (.des) created from going through this tutorial. 2.2 Connection Type 1. Click the New button on the toolbar. 2. Select the connection type Post and Beam, Beam-to-column, two-sided configuration. 3. Click on OK.
Connections Tutorial 2 - Selecting Connection Type 4. Select the Bolts connection type. 5. Click on OK.
Connections Tutorial 2 – Selecting Bolt Connection
2.3 Connection Details Main Member 1. 2. 3. 4. 5.
Specify Material to Glulam-c. Specify Species as D.Fir-L. Specify Grade as 16c-E. Specify Width as 190 mm. Specify Depth as 175 mm.
Note: Width and Depth inputs will need to be input manually, as the default widths in Connections does not include 190 mm.
Connections Tutorial 2 – Main Member (Column) Details
Side Member 1. 2. 3. 4. 5. 6.
Specify Material to Glulam-E. Specify Species as D.Fir-L. Specify Grade as 20f-E. Specify Width as 130 mm. Specify Depth as 266 mm. Specify a factored Force Y of 38.1 kN.
Connections Tutorial 2 – Side Member (Beam) Details
Face Plate 1. 2. 3. 4. 5.
Specify a Bolt Diameter of 1 inch (25.4 mm). Specify 1 Row per Plate and 2 Bolts per Row. Specify a Plate Thickness of 6 mm. Leave all other Parameters as Default/(unknown) Click Run Design.
Connections Tutorial 2 – Face Plate Details
2.4 Review and Accept Design Results At this point, it is possible to review the Diagram, Results and Accept the design. Both the Diagram and Results can quickly be printed using the Print icon. Click here to download a copy of the Diagram. Click here to download a copy of the Results. Note: For this type of Connection, the diagram does not show the left beam.
Connections Tutorial 2 – Diagram Results
2.5 Re-Designing the Connection Upon reviewing the design results, it can be observed that the yielding resistance governs the design, and that the connection is over capacity by a ratio of 0.61. Alternative designs are possible. 1. Check to see if the connection will pass with a 7/8 inch (22.3 mm) Bolt. 2. Check to see if the connection will pass with a ¾ inch (19.1 mm) Bolt. Modifying the Bolt diameter changes the overcapacity ratio to 0.77 for a 7/8 inch bolt, and to 1.03 for a ¾ inch bolt. Therefore, for this example a more efficient design would be to specify 7/8 inch bolts as opposed to the 1 inch bolts that were originally input.
Connections Tutorial 2 – Results for 7/8 inch Bolts
Connections Tutorial 3 – Screw Lap Splice (Canadian) 3.1 Introduction This tutorial goes over the design of a screw lap splice connection between OSB and a solid sawn member. The problem is the same as example 1 on page 256 of the 2015 edition of the Canadian Wood Council Wood Design Manual. See explanation on page 257 of the WDM. Due to the lack of screw penetration into the third member in the splice, the problem must be considered as a single shear connection. Click here to download the connections file (.des) which will be created by going through this tutorial.
3.2 Connection Type 1. Click the New button on the toolbar. 2. Select the connection type Lapped Shear, wood-to-wood, Splice two-member. 3. Select Wood Screws.
Connections Tutorial 3 – Selecting Screw Splice Connection
3.3 Connection Details Main Member 1. 2. 3. 4. 5.
Specify Material to Lumber joist. Specify Species as S-P-F. Specify Grade as No.1/No.2. Specify Thickness as 38 mm. Specify Width as 140 mm.
Connections Tutorial 3 – Main Member Details
Side Member 1. 2. 3. 4. 5. 6.
Specify Material to OSB. Specify Species as all. Specify Thickness as 11 mm. Specify Width as 140 mm. Specify End Type as Unknown. Specify a Force of 8 kN.
Connections Tutorial 3 – Side Member Details
Screw Details 1. 2. 3. 4.
Specify a Screw Gauge Number of 6. Specify a Wood Screw Length of 1-3/4. Select the box Add Staggered Screws Between Rows. Click Run Design.
Connections Tutorial 3 – Screw Details
3.4 Review and Accept Design Results Once the design has been run, it is possible to review the Diagram, Results and Accept the design. For this example, 18 1-¾ inch screws were found to be adequate in resisting the specified load. Both the Diagram and Results can quickly be printed using the Print icon. Click here download a pdf of the diagram. Click here to download a pdf of the results.
Connections Tutorial 3 – Screw Splice Results
Connections Tutorial 4 - Design Collectors or Drag Strut (Canadian) In this tutorial, it will be demonstrated how the results from a WoodWorks shearwalls model can be interpreted to complete connection design of a Collector or drag strut. Good Engineering judgement should be used when designing collectors or drag struts within shearlines. The forces used in this model come from the shearwalls model which is created by going through Shearwalls tutorial 6. Click here to download the connections file (.des) created from going through this tutorial.
4.1 Drag Strut Force from Shearwalls model
Connections Tutorial 4 - Designing Collector along Shearline C Level 1 Upon reviewing the forces in the elevation view, it can be observed that the worst case loading scenario is when seismic loads are distributed by a Flexible diaphragm. The two portions of shearline C (C-1 and C-2) need to be connected by a collector that can resist an 18.22 kN tension force. To resist the 18.22 kN tension force, it will be necessary to specify a steel strap that can drag the 18.22 kN between the two shearline segments. Based on the model created in concept mode, it has been determined that the joists in the diaphragm above the shearwalls run parallel to the shearline. It will be necessary to create a continuous row of beams or blocking between segments C-1 and C-2 of the shearline. The steel strap will be nailed from the top plate of wall C-1 and be continuously nailed to blocking or beams on the underside of the diaphragm until it reached the top plate of Wall C-2. For more information on designing drag struts, please refer to Thor Matteson’s Wood-Framed shear wall construction.
4.2 Steel to wood Lap Splice Connection Design Connection Type 1. Click the New button on the toolbar. 2. Select the connection type Lapped Shear, wood-to-steel, Splice, one wood, one steel.
3. Select Nails.
Connections Tutorial 4 – Selecting Nail Splice Connection
Main Member 1. 2. 3. 4. 5.
Specify Material to Lumber joist. Specify Species as S-P-F. Specify Grade as No.1/No.2. Specify Thickness as 38 mm. Specify Width as 140 mm.
Connections Tutorial 4 – Main Member Details
Side Member 1. 2. 3. 4.
Specify Width as 127 mm. Specify Thickness as 1.519 (16 ga) mm. Specify End Type as Overlap. Specify a Force of 18.22 kN.
Connections Tutorial 4 – Side Member Details
Nail Details 1. 2. 3. 4.
Specify a Nail type as Wire Nail. Specify a Nail Length of 44 mm (1-3/4”). Leave other Parameters as Unknown. Click Run Design.
Connections Tutorial 4 – Nail Details
Review and Accept Design Results Once the design has been run, it is possible to review the Diagram, Results and Accept the design. Adjust the connection details as desired. Both the Diagram and Results can quickly be printed using the Print icon. Click here to download a pdf of the diagram. Click here to download a pdf of the design results.
Connections Tutorial 4 – Nail Splice Connection Detail
2017 User Guide – Canadian Connections Tutorial Instructions For Design Office 9
Canadian Wood Council American Wood Council
Developed by Acronym Software Inc.
Limited Warranty The American Wood Council and the Canadian Wood Council make no representations or warranties with respect to the contents of this user guide and specifically disclaim any implied warranties of merchantability or fitness for any particular purpose. The contents of this documentation may include technical inaccuracies or typographical errors. The American Wood Council and the Canadian Wood Council disclaim all warranties with respect to the software contained on disk or in printed form, including all expressed or implied warranties of merchantability and fitness; and any stated or expressed warranties are in lieu of all obligations or liabilities of the American Wood Council and the Canadian Wood Council for damages, including, but not limited to special, indirect or consequential damages arising out of or in connection with the performance of the software. As always, the engineer is ultimately responsible for his or her design. Refer to Read Me for further information.
© 2017 Copyright by CWC
Connections Tutorial 1 – Bolt Connection for Diagonal Brace (CDN) 1.1
Introduction
Click here to download the connections file (.des) created from going through this tutorial.
1.2
Connection Type
1. Click the New button on the toolbar. 2. Select the connection type Lapped Shear, Wood-to-wood with a Skew, two side members configuration. 3. Click on OK.
Connections Tutorial 1 – Selecting Connection Type
1.3
Connection Details Main Member 1. 2. 3. 4. 5. 6.
Specify Material to Glulam-EX. Specify Species as D.Fir-L. Specify Grade as 20f-EX. Specify Thickness as 80 mm. Specify Width as 228 mm. Specify the End Type as Extended.
Connections Tutorial 1 – Specifying details for Main Member
Side Members 1. 2. 3. 4. 5. 6. 7. 8.
Specify Material to Lumber-joist. Specify Species as Hem-fir. Specify Grade as No.1/No.2. Specify Thickness as 38 mm. Specify Width as 140 mm. Specify a Slope of 45 degrees. Input a Force of 6 kN. Specify a Load Duration of Permanent.
Connections Tutorial 1 – Specify details of Side Members
1.4
Review and Accept Design Results
Once a load has been input, Connections will automatically complete the design, and a drawing of the connection will automatically generate on the Details screen. At this point, it is possible to review the Diagram, Results and Accept the design. For this example, one ¾ inch bolt was found to be adequate in resisting the specified load. Both the Diagram and Results can quickly be printed using the Print icon. Click here to download a pdf of the design results. Click here to download a pdf of the diagram.
Connections Tutorial 1 – Review Results
Connections Tutorial 2 – Beam to Column Bolt Connection (Canadian) 2.1 Introduction This tutorial goes over the design of a bolt connection between a beam and column. The problem is the same as example 1 on page 272 of the 2015 edition of the Canadian Wood Council Wood Design Manual.
Click here to download a copy of the connections file (.des) created from going through this tutorial. 2.2 Connection Type 1. Click the New button on the toolbar. 2. Select the connection type Post and Beam, Beam-to-column, two-sided configuration. 3. Click on OK.
Connections Tutorial 2 - Selecting Connection Type 4. Select the Bolts connection type. 5. Click on OK.
Connections Tutorial 2 – Selecting Bolt Connection
2.3 Connection Details Main Member 1. 2. 3. 4. 5.
Specify Material to Glulam-c. Specify Species as D.Fir-L. Specify Grade as 16c-E. Specify Width as 190 mm. Specify Depth as 175 mm.
Note: Width and Depth inputs will need to be input manually, as the default widths in Connections does not include 190 mm.
Connections Tutorial 2 – Main Member (Column) Details
Side Member 1. 2. 3. 4. 5. 6.
Specify Material to Glulam-E. Specify Species as D.Fir-L. Specify Grade as 20f-E. Specify Width as 130 mm. Specify Depth as 266 mm. Specify a factored Force Y of 38.1 kN.
Connections Tutorial 2 – Side Member (Beam) Details
Face Plate 1. 2. 3. 4. 5.
Specify a Bolt Diameter of 1 inch (25.4 mm). Specify 1 Row per Plate and 2 Bolts per Row. Specify a Plate Thickness of 6 mm. Leave all other Parameters as Default/(unknown) Click Run Design.
Connections Tutorial 2 – Face Plate Details
2.4 Review and Accept Design Results At this point, it is possible to review the Diagram, Results and Accept the design. Both the Diagram and Results can quickly be printed using the Print icon. Click here to download a copy of the Diagram. Click here to download a copy of the Results. Note: For this type of Connection, the diagram does not show the left beam.
Connections Tutorial 2 – Diagram Results
2.5 Re-Designing the Connection Upon reviewing the design results, it can be observed that the yielding resistance governs the design, and that the connection is over capacity by a ratio of 0.61. Alternative designs are possible. 1. Check to see if the connection will pass with a 7/8 inch (22.3 mm) Bolt. 2. Check to see if the connection will pass with a ¾ inch (19.1 mm) Bolt. Modifying the Bolt diameter changes the overcapacity ratio to 0.77 for a 7/8 inch bolt, and to 1.03 for a ¾ inch bolt. Therefore, for this example a more efficient design would be to specify 7/8 inch bolts as opposed to the 1 inch bolts that were originally input.
Connections Tutorial 2 – Results for 7/8 inch Bolts
Connections Tutorial 3 – Screw Lap Splice (Canadian) 3.1 Introduction This tutorial goes over the design of a screw lap splice connection between OSB and a solid sawn member. The problem is the same as example 1 on page 256 of the 2015 edition of the Canadian Wood Council Wood Design Manual. See explanation on page 257 of the WDM. Due to the lack of screw penetration into the third member in the splice, the problem must be considered as a single shear connection. Click here to download the connections file (.des) which will be created by going through this tutorial.
3.2 Connection Type 1. Click the New button on the toolbar. 2. Select the connection type Lapped Shear, wood-to-wood, Splice two-member. 3. Select Wood Screws.
Connections Tutorial 3 – Selecting Screw Splice Connection
3.3 Connection Details Main Member 1. 2. 3. 4. 5.
Specify Material to Lumber joist. Specify Species as S-P-F. Specify Grade as No.1/No.2. Specify Thickness as 38 mm. Specify Width as 140 mm.
Connections Tutorial 3 – Main Member Details
Side Member 1. 2. 3. 4. 5. 6.
Specify Material to OSB. Specify Species as all. Specify Thickness as 11 mm. Specify Width as 140 mm. Specify End Type as Unknown. Specify a Force of 8 kN.
Connections Tutorial 3 – Side Member Details
Screw Details 1. 2. 3. 4.
Specify a Screw Gauge Number of 6. Specify a Wood Screw Length of 1-3/4. Select the box Add Staggered Screws Between Rows. Click Run Design.
Connections Tutorial 3 – Screw Details
3.4 Review and Accept Design Results Once the design has been run, it is possible to review the Diagram, Results and Accept the design. For this example, 18 1-¾ inch screws were found to be adequate in resisting the specified load. Both the Diagram and Results can quickly be printed using the Print icon. Click here download a pdf of the diagram. Click here to download a pdf of the results.
Connections Tutorial 3 – Screw Splice Results
Connections Tutorial 4 - Design Collectors or Drag Strut (Canadian) In this tutorial, it will be demonstrated how the results from a WoodWorks shearwalls model can be interpreted to complete connection design of a Collector or drag strut. Good Engineering judgement should be used when designing collectors or drag struts within shearlines. The forces used in this model come from the shearwalls model which is created by going through Shearwalls tutorial 6. Click here to download the connections file (.des) created from going through this tutorial.
4.1 Drag Strut Force from Shearwalls model
Connections Tutorial 4 - Designing Collector along Shearline C Level 1 Upon reviewing the forces in the elevation view, it can be observed that the worst case loading scenario is when seismic loads are distributed by a Flexible diaphragm. The two portions of shearline C (C-1 and C-2) need to be connected by a collector that can resist an 18.22 kN tension force. To resist the 18.22 kN tension force, it will be necessary to specify a steel strap that can drag the 18.22 kN between the two shearline segments. Based on the model created in concept mode, it has been determined that the joists in the diaphragm above the shearwalls run parallel to the shearline. It will be necessary to create a continuous row of beams or blocking between segments C-1 and C-2 of the shearline. The steel strap will be nailed from the top plate of wall C-1 and be continuously nailed to blocking or beams on the underside of the diaphragm until it reached the top plate of Wall C-2. For more information on designing drag struts, please refer to Thor Matteson’s Wood-Framed shear wall construction.
4.2 Steel to wood Lap Splice Connection Design Connection Type 1. Click the New button on the toolbar. 2. Select the connection type Lapped Shear, wood-to-steel, Splice, one wood, one steel.
3. Select Nails.
Connections Tutorial 4 – Selecting Nail Splice Connection
Main Member 1. 2. 3. 4. 5.
Specify Material to Lumber joist. Specify Species as S-P-F. Specify Grade as No.1/No.2. Specify Thickness as 38 mm. Specify Width as 140 mm.
Connections Tutorial 4 – Main Member Details
Side Member 1. 2. 3. 4.
Specify Width as 127 mm. Specify Thickness as 1.519 (16 ga) mm. Specify End Type as Overlap. Specify a Force of 18.22 kN.
Connections Tutorial 4 – Side Member Details
Nail Details 1. 2. 3. 4.
Specify a Nail type as Wire Nail. Specify a Nail Length of 44 mm (1-3/4”). Leave other Parameters as Unknown. Click Run Design.
Connections Tutorial 4 – Nail Details
Review and Accept Design Results Once the design has been run, it is possible to review the Diagram, Results and Accept the design. Adjust the connection details as desired. Both the Diagram and Results can quickly be printed using the Print icon. Click here to download a pdf of the diagram. Click here to download a pdf of the design results.
Connections Tutorial 4 – Nail Splice Connection Detail
