SmartLVL 15 Design Guide - Tilling Timber

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INDEXScope of publication 11. SmartLVL 151.1 Design/effective span 21.2 Continuous spans 31.3 Rip sawing SmartLVL 15 31.4 Double section SmartLVL 15.1 top loaded beams 3.2 side loaded beams 4.3 side load table 41.5 Steel and timber post fixing 41.6 Fire resistance 41.7 Cutting and notching 41.8 Roof construction detailing 51.9 Lateral restraint of roof beams 51.10 Chemical resistance 61.11 Storage and handling 61.12 Marking of SmartLVL 15 61.13 Durability and exposure to moisture.1 Moisture effects on LVL 7.2 Dimensional change 7.3 Changes in strength 7.4 Design for durability 8.5 SmartGuard treatment 8.6 Fasteners for H3 LVL 8.7 Painting of treated LVL 8.8 Deck bearers and joists 91.14 SmartLVL 15 Hanger details 102. Designing with SmartLVL 153. Span Tables2.1 Product specification 112.2 Limit state design values 112.3 Strength reduction factor 112.4 Duration of load 112.5 Moisture effects 112.6 Temperature 112.7 Length and position of bearing 112.8 Load sharing 112.9 Stability 112.10 Size factor 112.11 Joint group 122.12 Section properties 12Index of span tables 13SCOPE OF THIS PUBLICATIONThis Design Guide and Load Tables assist in the selection ofSmartLVL ® 15 beams for most of the common structural arrangementsmet in domestic construction.Methods of developing lateral restraint and providing adequatesupport, adequate anchorage against wind uplift, and overallstructural stability are outside the scope of this publication,however some limited examples have been reproduced withinthis document.Information on the above matters can be obtained from AS1684 Residential timber-framed construction or from a structuralengineer experienced in timber construction.Tilling Timber Pty Ltd have structural engineers at the Smart-Frame Design Centre who can be contacted for advice onmatters concerning the use of its engineered timber products intimber construction at smartdata@tilling.com.au or on theSmartData Customer HelpLine 1300 668 690.Substitution of other productsAll load tables in this document are designed using in-gradetested properties of SmartLVL®15 as distributed by Tilling TimberPty Ltd. Other manufacturers’ LVL may have different propertiesand therefore cannot be designed using these span tables.CopyrightCopyright of this publication remains the property of TillingTimber Pty Ltd, and reproduction of the whole or part of thispublication without written permission from Tilling Timber PtyLtd is prohibited.CertificationAs a professional engineer, qualified and experienced in timberengineering, I certify that the use of the SmartLVL 15 membersas shown in these tables, and installed in accordance with theprovisions of this Design Guide, complies to the National ConstructionCode (NCC). These span tables have been prepared inaccordance with standard engineering principles, the relevanttest reports and Australian standards, ie:AS 1684.1 Residential timber-framed constructionAS 1170.1 Structural design actions – permanentimposed and other actionsAS 1720.1 Timber structures - design methodsAS 4055 Wind loads for housesAS/NZS 4357 Structural laminated veneer lumberAS/NZS 4063 Characterisation of structural timberCRAIG KAY, PEng, RPB0730, EC-1961, RPEQ 5100, CC5635C, NPERNational Product Manager - EWP
1. SmartLVL ® 15DescriptionSmartLVL 15 is a Douglas Fir structural laminated veneer lumber(LVL) manufactured by Pacific Woodtech Corporation, WashingtonState, USA to meet the quality controlled process requirements ofAS/NZS 4357 - Structural Laminated Veneer Lumber.QualityCompliance with process based quality controlrequirements is third party audited by SAI-Global,and the audits, together with end product testingis used as the basis for Product Certification bySAI-Global as a JAS-ANZ accredited Product Certificationbody.AS 4357 Lic SMKB25220SAI Global JAS-ANZ stands for the governmentestablished “Joint AccreditationSystem of Australia and New Zealand” which existsas the peak organisation for accreditation of ProductCertification bodies.Preservative Treatment optionsStock SmartLVL 15 is H2s (glue line) treated for use South of theTropic of Capricorn. It can be post- production pressure treated toH2 or H3 to AS/NZS 1604.4 .Short term water repellencySmartLVL now comes with a clear new generation short term waterrepellency H 2 O Shield to replace the old fashioned wax sealersused by most other LVL manufacturers. H 2 O Shield is a water-based sealer specifically formulated and exclusively licensed inAustralia to Tilling Timber Pty Ltd.H 2 O shield offers numerous key benefits:i) High-penetrating surface treatmentii) Formulated to repel rain during storage and constructioniii) Includes a biocide/fungicideiv) Paintable - acrylic and oil based coatingsv) Glueable – using standard construction adhesivesbetween the LVL and woodor plaster productsvi) When transporting or walkingon the LVL, it does notbecome slippery like the waxsurface coatingvii) Environmentally friendlyUsers will notice that the new sealer absorbsinto the wood instead of leaving a film on top of the surfaces,which is the key to its added benefits.1.1 SmartLVL DESIGN/EFFECTIVE SPANNormal structural analysis uses the centreline representation ofthe member. The term “span” can be defined in a number ofways and these are defined as follows:Clear Span. This is the distance between the faces of any support.It is generally the one easiest to measure and read from thedrawingsNominal span/centre-line span. This is the distance between thecentre of the supports. This span is used to determine bendingmoments and deflections for continuous spaning membersDesign span/Effective span. This is the span used for single spanmembers to determine the bending moment, the slenderness ofbending members and the deflections. In NZS 3603 this is thedimension referred to as “L”, and is defined below.Design span/Effective span is the distance between -The centre of the bearing at each end of a beam wherethe bearing lengths have NOT been conservatively sizedThe centre of notional bearing that have been sized appropriately,where the size of the bearing IS conservative.Diagram (a) shows beam where bearingshave been designed appropriately.The effective span is taken as thedistance between the centre of eachbearing areaClear span (Distance between face of supports)Effective span (design span L)Diagram (b) shows beam where bearingsat each end have been oversized.(This is frequently the case for beamsthat bear onto brickwork or concretewalls where the thickness of the wallis in excess of the area required togive the beam bearing capacity).To find the correct effective span:Effective span (design span) LClear span (Distance between face of supports)Area of supportrequired forbearingLength ofeffectivebearing.Length oforiginalbearing(oversized)1. Calculate the minimum bearingrequired to carry the loads satisfactorilyCentre-line span (distance betweeen centres of supports)SmartLVL 15 Design Guide 1
Page 1: SmartLVL 15Design GuideEdition 2201
Page 8: 1.10 CHEMICAL RESISTANCESmartLVL (w
Page 13 and 14: 2. DESIGNING WITH SmartLVL 15The de
Page 15 and 16: 3. Index of span tablesWA Supplemen
Page 17 and 18: SINGLE SPAN FLOOR BEARERS SUPPORTIN
Page 20 and 21: FLOOR BEARERS SUPPORTING SINGLE STO
Page 22 and 23: FLOOR BEARERS SUPPORTING SINGLE STO
Page 24 and 25: SINGLE SPAN FLOOR BEARERSUPPORTING
Page 26 and 27: CONTINUOUS SPAN FLOOR BEARERSUPPORT
Page 28 and 29: SINGLE SPAN LINTELS IN SINGLE/UPPER
Page 30 and 31: SINGLE SPAN LINTELS IN SINGLE/UPPER
Page 32 and 33: NOTES:SINGLE SPAN LINTELS IN LOWER
Page 34 and 35: SINGLE/CONTINUOUS SPAN ROOF RAFTERA
Page 46 and 47: NOTES:SINGLE SPAN RIDGE/INTERMEDIAT
Page 48 and 49: CONTINUOUS SPAN RIDGE/INTERMEDIATE
Page 50 and 51: NOTES:SINGLE SPAN RIDGE/INTERMEDIAT
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CONTINUOUS SPAN RIDGE/INTERMEDIATE
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SINGLE SPAN VERANDAH BEAMAS 4055 CL
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CONTINUOUS SPAN VERANDAH BEAMAS 405
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SINGLE SPAN VERANDAH BEAMAS 4055 CL
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UNDERPURLINS - SHEET AND TILED ROOF
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HANGING BEAM SUPPORTING CEILING LOA
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COUNTER BEAM SUPPORTING HANGING BEA
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STRUTTING BEAM SUPPORTING UNDERPURL
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STRUTTING BEAM SUPPORTING UNDERPURL
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STRUTTING/COUNTER BEAM SUPPORTING U
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STRUTTING/COUNTER BEAM SUPPORTING U
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STRUTTING/HANGING BEAMAS 4055 CLASS
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Strutting/Hanging beamUnderpurlin'A
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CEILING JOISTSAS 4055 WIND CLASSIFI
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SmartSplay STRUTTING BEAMS SUPPORTI
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SmartSplay 15 COUNTER BEAMS - SUPPO
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Pryda ® WA Beam HangerPryda WA Bea
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®Victoria31-45 Orchard Street,Kils
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SmartLVL 15 Design Guide - Tilling Timber

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