CWC Publications, Software and Tools

Transcription

1 CWC Publications, Software Kevin Rocchi, MASc., E.I.T. October 27 th 2015 Vancouver, BC Canadian Wood Council G063 CWC Publications, Software Kevin Rocchi, MASc., E.I.T. Technical Service Specialist Canadian Wood Council October 27, 2015 Kevin Rocchi, MASc, E.I.T. 1

2 Credit(s) earned on completion of this course will be reported to AIA CES for AIA members. Certificates of Completion for both AIA members and non AIA members are available upon request. This course is registered with AIA CES for continuing professional education. As such, it does not include content that may be deemed or construed to be an approval or endorsement by the AIA of any material of construction or any method or manner of handling, using, distributing, or dealing in any material or product. Questions related to specific materials, methods, and services will be addressed at the conclusion of this presentation. Course Description The CWC is an industry funded association with a mandate to transfer technical knowledge in regards to wood design to Engineers, Architects, Builders and other designers and regulators. This session will cover several design tools and publications which are available, with a focus on recently updated products as well as a peak at upcoming modifications. Attendees will gain specific knowledge about: Free online tool: Wall Thermal Design Calculator Publication: Engineering Guide for Wood Frame Construction 2014 Publication: Permanent Wood Foundations 2016 Software: WoodWorks Design Office: Sizer, Shearwalls, Connections Free online tool: Carbon Calculator Kevin Rocchi, MASc, E.I.T. 2

3 Learning Objectives At the end of the this course, participants will be able to: Key learning points: Learn what online design tools, software and publications are available. Understand how to use the Wall Thermal Design Calculator (free online tool) which can be used to meet the Energy Requirements of the NECB and Part 9 of the NBC as well as the OBC. Overview of the changes to the Engineering Guide for Wood Frame Construction 2014 (publication for purchase soon). Preview of the upcoming changes to the Permanent Wood Foundations Learn the capabilities of WoodWorks software (for purchase) Copyright Materials This presentation is protected by US and International Copyright laws. Reproduction, distribution, display and use of the presentation without written permission of the speaker is prohibited. Canadian Wood Council 2015 Kevin Rocchi, MASc, E.I.T. 3

4 The Canadian Wood Council represents the Canadian wood products industry through a national federation of Associations: CWC produces and communicates technical information to architects, engineers, builders, and other designers on how to use wood in buildings from a structural, fire, and sustainability design perspective. Kevin Rocchi, MASc, E.I.T. 4

5 Presentation Outline 1. Free online tool: Wall Thermal Design Calculator 2. Publication: Engineering Guide for Wood Frame Construction Publication: Permanent Wood Foundations Software: WoodWorks Design Office 5. Free online tool: Carbon Calculator Presentation Outline 1. Free online tool: Wall Thermal Design Calculator 2. Publication: Engineering Guide for Wood Frame Construction Publication: Permanent Wood Foundations Software: WoodWorks Design Office 5. Free online tool: Carbon Calculator Kevin Rocchi, MASc, E.I.T. 5

6 Wall Thermal Design Calculator Design Tools Wall Thermal Design Wall Thermal Design Calculator What s the Purpose of the Wall Thermal Design Calculator? To provide designers with climate zone appropriate insulated wall assembly solutions: easily comparable with prescriptive energy efficiency requirements (NECB, NBC, Provincial) with a climate specific durability assessment Kevin Rocchi, MASc, E.I.T. 6

7 National Energy Requirements (Wall Effective R values): Climate zones (HDD 18 C) and modelled cities Edmonton Zone: 7A HDD: 5120 MI: 0.48 Vancouver: Zone: 4 HDD: 2950 MI: 1.69 Toronto Zone: 5 HDD: 3800 MI: 0.87 Montreal Zone: 6 HDD: 4500 MI: 0.93 St John s Zone: 6 HDD: 4800 MI: 1.41 Kevin Rocchi, MASc, E.I.T. 7

8 Smithers Zone: 7A HDD: 5040 MI: 0.60 Similar cities Vancouver: Zone: 4 HDD: 2950 MI: 1.69 Kelowna Zone: 5 HDD: 3400 MI: 0.29 Prince George Zone: 6 HDD: 4720 MI: 0.58 Wall Thermal Design Calculator Kevin Rocchi, MASc, E.I.T. 8

9 Recent Illustrated Guides by HPO refers to CWC calculator effective walls wood frame in BC The Canadian Wood Council has an online tool to assist in calculation of the effective thermal resistance of wall assemblies Kevin Rocchi, MASc, E.I.T. 9

10 23% (area of framing) Wall Thermal Design Calculator Effective R value calculation for 2x6 at 16 o.c. (brick + air space, plywood, gypsum): R F = 6.75 R C = 19 Air film 0.17 Brick 0.40 Air space 1.02 Plywood 0.62 Gypsum 0.45 Air film 0.68 Total continuous % (area of cavity insulation) Step 1: Calculate stud cavity effective insulation: % % = Step 2: Add in series all layers of the continuous materials in the assembly, including air films and still air spaces. = 3.34 Step 3: = R eff = NEW Illustrated Guides by HPO (also refers to CWC calculator) Guide: how to achieve R eff 22 walls Split insulated Exterior insulated Double stud Deep studs with service Provides a general range of R eff values Shows how to calculate R eff Complements the WTD calculator efficiency requirements Kevin Rocchi, MASc, E.I.T. 10

11 Split Insulated Wall efficiency requirements Wall Thermal Design Calculator Nominal vs Effective R values Nominal R value: Installed R value of the insulation components only, as labelled on the product. Effective R value: R value including the contribution of framing members (spacing and material type) Example: R19/20 batts R19 batt (wood studs) R20 batt (metal studs) Kevin Rocchi, MASc, E.I.T. 11

12 Wall Thermal Design Calculator Example: Vancouver requires R22 Effective Wall Thermal Design Calculator Example: Vancouver requires R22 Effective Kevin Rocchi, MASc, E.I.T. 12

13 Wall Thermal Design Calculator Example: Vancouver requires R22 Effective Wall Thermal Design Calculator Example: Vancouver requires R22 Effective Kevin Rocchi, MASc, E.I.T. 13

14 Wall Thermal Design Calculator Example: Vancouver requires R22 Effective Wall Thermal Design Calculator Example: Vancouver requires R22 Effective Scroll to the right to specify cladding and other details Kevin Rocchi, MASc, E.I.T. 14

15 Wall Thermal Design Calculator Example: Vancouver requires R22 Effective Choices narrowed to 12 Wall Thermal Design Calculator Wall assembly components... and assembly RSI and R values Kevin Rocchi, MASc, E.I.T. 15

16 Wall Thermal Design Calculator Durability assessment Wall Thermal Design Calculator Questions / suggestions: wtd@cwc.ca Design Tools Wall Thermal Design Kevin Rocchi, MASc, E.I.T. 16

17 Presentation Outline 1. Free online tool: Wall Thermal Design Calculator 2. Publication: Engineering Guide for Wood Frame Construction Publication: Permanent Wood Foundations Software: WoodWorks Design Office 5. Free online tool: Carbon Calculator Engineering Guide for Wood Frame Construction 2014 Edition Updated to conform with NBC 2015 and CSA O86 14 (Available early 2016) Basis of Subsection of the NBC Bracing to Resist Lateral Loads Due to Wind and Earthquake Referenced in Part 9 of the NBC as an alternative design tool to the prescriptive design for housing and small buildings Bridges the Gap between a Part 9 (Prescriptive Design) and Part 4 (Engineered Design) Kevin Rocchi, MASc, E.I.T. 17

18 Engineering Guide for Wood Frame Construction 2014 Edition Who uses the Engineering Guide? Architects, Engineers, Contractors and Building Officials who live in areas of Canada which are considered as High Wind or Seismic Zones Where do High Wind Zones occur in Canada? 5 Locations (NBC 2015) 3 in Newfoundland, 1 in North West Territories, and 1 in Alberta Where do High Seismic Zones occur in Canada? 50 Locations (NBC 2015) 40 in British Columbia, 7 in Quebec, 2 in Yukon and 1 in New Brunswick Engineering Guide for Wood Frame Construction 2014 Edition Engineering Guide Format PART A: Forward How to use it? PART B: Design Requirements Equations used in Parts C and D PART C: Supplementary Guidelines on Applicability and Scope Basis of of NBC PART D: Supplementary Tables Tables to Develop loads and Design Components Kevin Rocchi, MASc, E.I.T. 18

19 Engineering Guide for Wood Frame Construction 2014 Edition Why have there been Changes to Part C of the Engineering Guide? Updated procedure in Part 4 of the NBC 2015 for calculating seismic loads Increase in total base shear for small buildings less than 3 stories Updated seismic climatic data in NBC 2015 A number of locations (Including Victoria, BC), would no longer be allowed to be designed following Part 9 Engineering Guide for Wood Frame Construction 2014 Edition Braced Wall Framing Details: Typical Wall Sheathing Connection in the NBC 2010 and Engineering Guide 2009: 3/8 thick sheathing (9.5 mm) 2 ¼ long nail (2.84 mm dia, 57 mm long) 6 inch panel edge spacing (150 mm) 12 inch panel interior spacing (300 mm) unblocked wall Kevin Rocchi, MASc, E.I.T. 19

20 Engineering Guide for Wood Frame Construction 2014 Edition Nailing Within Braced Wall Bands Typical Wall Double Top Plate Splice Connection in NBC 2010 and Engineering Guide 2009: dia. Nails on either side of the splice Engineering Guide for Wood Frame Construction 2014 Edition Size and Spacing of Anchor Bolts: Typical Anchor Bolt Connection of Sill Plate to Foundation in NBC 2010 and Engineering Guide 2009: 1/2 (12.7 mm) dia. Bolt at 8 ft (2.4 m) on center along sill plate Tighter bolt spacing depending on number of storeys supported and weight of structure Kevin Rocchi, MASc, E.I.T. 20

21 Presentation Outline 1. Free online tool: Wall Thermal Design Calculator 2. Publication: Engineering Guide for Wood Frame Construction Publication: Permanent Wood Foundations Software: WoodWorks Design Office 5. Free online tool: Carbon Calculator Permanent Wood Foundations 2016 Most common in Prairies and Northern/remote locations First ones built as early as 1950 and are still performing well today Consists of below grade stud walls constructed of preservative treated lumber and plywood sheathing Higher level of preservative treatment (CCA) Courtesy of Spray Lakes Sawmill Kevin Rocchi, MASc, E.I.T. 21

22 Permanent Wood Foundations 2016 Why Build a Permanent Wood Foundation? Lack of other materials for foundation construction Lack of roads for transportation (i.e. remote site) Cost Effective (fewer trades, up to 50% less expensive) Reduces the weight of the structure (poor soil conditions) Permanent Wood Foundations 2016 Why Build a Permanent Wood Foundation? Operational energy savings (higher heat resistance assembly) Easier to finish a basement Quick construction time in any weather (can be prefabricated) Lower environmental impact over building s life cycle (embodied + operational impacts) Kevin Rocchi, MASc, E.I.T. 22

23 Permanent Wood Foundations 2016 How do Permanent Wood Foundations Work? Permanent Wood Foundations 2016 Kevin Rocchi, MASc, E.I.T. 23

24 Permanent Wood Foundations 2016 Permanent Wood Foundations 2016 Kevin Rocchi, MASc, E.I.T. 24

25 Permanent Wood Foundations 2016 New edition of the CAN/CSA S Specification of permanent wood foundations for housing and small buildings Revised in 2014, amendment published in 2016 Referenced in NBC 2015, Provides prescriptive design provisions similar to NBC Part 9 Can be used by architects and engineers (depending on province, may require engineer s seal) Guidance and design tables up to 3 storeys supported by PWF Permanent Wood Foundations 2016 New edition of the CWC publication Permanent Wood Foundations Last published in 1997; new edition available in early 2016 Includes updates in line with CSA S amendment Further guidance on durability and building science considerations (e.g. hygrothermal performance) Additional guidance on walkout basements and openings in PWF walls Kevin Rocchi, MASc, E.I.T. 25

26 Permanent Wood Foundations 2016 Additional information on preservative treatment contact Preservation Canada PWF Fact Sheet: sheets/ CWC publication Permanent Wood Foundations 2016 will be available in early 2016 Presentation Outline 1. Free online tool: Wall Thermal Design Calculator 2. Publication: Engineering Guide for Wood Frame Construction Publication: Permanent Wood Foundations Software: WoodWorks Design Office 5. Free online tool: Carbon Calculator Kevin Rocchi, MASc, E.I.T. 26

27 SIZER Gravity Design Concept mode Beam mode Column mode DATABASE EDITOR Add proprietary products SHEARWALLS Lateral Design (Wind and Seismic) Conforms to the NBC 2010 and CSA O86 14 CONNECTIONS Fasteners Electronic copy of CSA O86 included with purchase of Design Office suite ($205 value) Toggle Between Design Codes New Feature Toggle design code between CSA O86 09 and CSA O Kevin Rocchi, MASc, E.I.T. 27

28 Part 4: Engineered Design CSA O86 NBC Part 4 vs. NBC Part 9 Part 9: Prescriptive Design Span Tables in Appendix Section of NBC WoodWorks Software Follows a Part 4 Design More Guidance on Prescriptive Design in CWC publications SIZER Gravity Design Concept mode Beam mode Column mode DATABASE EDITOR Add proprietary products SHEARWALLS Lateral Design (Wind and Seismic) CONNECTIONS Fasteners Kevin Rocchi, MASc, E.I.T. 28

29 SIZER Concept Preliminary Gravity Load Design Tool Capable of modelling Columns, Walls, Beams and Joists Can input line, area or point loads Models can be up to 6 storeys in height Automatically distributes and transfer loads from the top storey to bottom storey Can produce material lists for costing Refine Design in Beam or Column Mode SIZER Concept Plan View Elevation View Kevin Rocchi, MASc, E.I.T. 29

30 SIZER Gravity Design Concept mode Beam mode Column mode DATABASE EDITOR Add proprietary products SHEARWALLS Lateral Design (Wind and Seismic) CONNECTIONS Fasteners SIZER Beam Mode Detailed Design of Beams, Joists, Rafters Simply Supported Multi Span Continuous Cantilevers Biaxial bending members (such as oblique purlins) Kevin Rocchi, MASc, E.I.T. 30

31 Wood Materials Lumber, Timber, Rough Sawn Timber Built up lumber Glulam PSL, LVL, LSL Wood I Joists SIZER Beam Mode Beam Mode Demonstration Kevin Rocchi, MASc, E.I.T. 31

32 SIZER Gravity Design Concept mode Beam mode Column mode DATABASE EDITOR Add proprietary products SHEARWALLS Lateral Design (Wind and Seismic) CONNECTIONS Fasteners SIZER Column Mode Columns & Walls Eccentric loading Compression & Tension Axial/ Lateral Loads Fixed or Pinned Kevin Rocchi, MASc, E.I.T. 32

33 Lateral support: Full, unbraced, or spec d spacing Fixed, Pinned, or Free end conditions Tension ( ) and compression axial forces Eccentric axial loads Load face can be the width or depth of columns or studs Kevin Rocchi, MASc, E.I.T. 33

34 SIZER Gravity Design Concept mode Beam mode Column mode DATABASE EDITOR Add proprietary products SHEARWALLS Lateral Design (Wind and Seismic) CONNECTIONS Fasteners CONNECTIONS Single and Double shear connections Wood to wood, concrete or steel Beam to Column, Beam to Beam, Column to base P P P P Kevin Rocchi, MASc, E.I.T. 34

35 CONNECTIONS Types of Connectors Shear Plates Bolts Lag Screws Wood Screws Nails Timber Rivets CONNECTIONS Connections and associated Fasteners on first screen Kevin Rocchi, MASc, E.I.T. 35

36 CONNECTIONS Detailed Design Output CONNECTIONS Export Design Results to DXF File Kevin Rocchi, MASc, E.I.T. 36

37 SIZER Gravity Design Concept mode Beam mode Column mode DATABASE EDITOR Add proprietary products SHEARWALLS Lateral Design (Wind and Seismic) CONNECTIONS Fasteners DATABASE EDITOR Two data bases: Standard and Custom Lumber, Timber, Rough Sawn Timber Multi ply lumber Glulam PSL, LVL, LSL Wood I Joists Kevin Rocchi, MASc, E.I.T. 37

38 DATABASE EDITOR Add proprietary products Custom database can be added to as needed Steel beams included Custom versions of Sizer: Canada Canada and US US US Canada Products included in generic Cdn Sizer: Kevin Rocchi, MASc, E.I.T. 38

39 Links to Sizer: Revit Sizer link via SIZER Gravity Design Concept mode Column mode Beam mode DATABASE EDITOR Add proprietary products SHEARWALLS Lateral Design (Wind and Seismic) CONNECTIONS Fasteners Kevin Rocchi, MASc, E.I.T. 39

40 SHEARWALLS CAD Import Drawings as a template makes modeling quicker (.pdf,.bmp,.wmf,.emf) 0,0 20 ft SHEARWALLS Lateral Design (Wind and Seismic) Wind and seismic load generation at the click of a button. Enter City, or building code climatic info. Additional loads can be added manually. Forces are distributed using both rigid (stiffness) and flexible (tributary area) diaphragm assumptions. Shearwalls designed for worst case distribution and load Kevin Rocchi, MASc, E.I.T. 40

41 SHEARWALLS Shearwalls Demonstration Log File Kevin Rocchi, MASc, E.I.T. 41

42 SHEARWALLS Shear Resistance of Shearwalls Example Detailed Shearwalls Design SHEARWALLS Shear Resistance of Shearwalls Example Detailed Shearwalls Design Vrs = 0.8 x x 1.15 = kn/m Vhd = 0.8 x ( kn / 0.15m) x 1.15 x 1.3 = 5.00 kn/m Kevin Rocchi, MASc, E.I.T. 42

43 Failing walls are highlighted red in plan view And labeled in elevation view Kevin Rocchi, MASc, E.I.T. 43

44 Information that can be used to create shearwall schedules: Results in Word: SHEATHING MATERIALS by WALL GROUP [mm] Wall Sheathing: Grade/ Fasteners Spacing Grp Surf Material Ply Thk Or Bv Dia Len Pe n Edg Int Bk Jub # 1 Ext DF Plywood Horz Y Int GWB 12.5 Horz / Y Both GWB 12.5 Horz / Y Both GWB 15.9 Horz / Y Kevin Rocchi, MASc, E.I.T. 44

45 Purchase online: software.com $995 Design Office includes PDF of CSA O86 $205 value Discounts for multi seat purchases Discounts for upgrades Sizer stand alone available at lower cost Free for educators and building officials Presentation Outline 1. Free online tool: Wall Thermal Design Calculator 2. Publication: Engineering Guide for Wood Frame Construction Publication: Permanent Wood Foundations Software: WoodWorks Design Office 5. Free online tool: Carbon Calculator Kevin Rocchi, MASc, E.I.T. 45

46 Online Carbon Calculators For Wood Buildings Design Tools Carbon Calculator Carbon Estimator Generic Analysis Kevin Rocchi, MASc, E.I.T. 46

47 Carbon Estimator Generic Analysis Online Carbon Calculators For Wood Buildings Design Tools Carbon Calculator Kevin Rocchi, MASc, E.I.T. 47

48 Carbon Calculator Detailed Analysis (ESSB, Vancouver Perkins + Will) Carbon Calculator Detailed Analysis Kevin Rocchi, MASc, E.I.T. 48

49 Carbon Calculator Detailed Analysis Carbon Calculator Detailed Analysis Kevin Rocchi, MASc, E.I.T. 49

50 Carbon Calculator Detailed Analysis Siding & Roofing species: Western Red Cedar/Eastern White Cedar Carbon Calculator Detailed Analysis Kevin Rocchi, MASc, E.I.T. 50

51 Carbon Case Study Library Square, B.C. 6 storey mixed use 35,500 ft 2 library + retail 150 condominium units Originally conceived as a concrete structure put on hold due to cost Redesigned in wood after 2009 BCBC changes allowed for 6 storey woodframe construction JM Architecture Kevin Rocchi, MASc, E.I.T. 51

52 webstore.cwc.ca Upcoming CWC Publications: 2014 Engineering Guide for Wood Frame Construction Permanent Wood Foundations Wood Design Manual Upcoming Software Work: New Canadian version to conform with the National Building Code 2015 Kevin Rocchi, MASc, E.I.T. 52

53 Questions/ Comments? This concludes The American Institute of Architects Continuing Education Systems Course Kevin Rocchi, MASc., E.I.T. software.com Canadian Wood Council Wood WORKS! BC works.org Kevin Rocchi, MASc, E.I.T. 53