JJI-JOISTS TECHNICAL MANUAL - James Jones And Sons Limited

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JJI-JOISTSTECHNICALMANUALFIFTH EDITION JANUARY 2019www.jamesjones.co.ukUK Manual

ContentsSection 1Section 4The JJI-Joist systemFloor designThe JJI-Joist systemEngineered wood componentsDesign tools and softwareEnvironmental considerations01020304Floor designDomestic floor span tablesF-detailsSection 2Section 5JJI-JoistsRoof designJJI-JoistsIntroductionJJI-Joist propertiesService holesAcousticsFire and durabilityHealth and safetySite storage and restrictions0506070809101112Roof designDesign considerationsFlat roof, cold vs warm designSpan tables - flat roofSpan tables - pitched roofR-detailsSection 3Section 6Glulam and LVLWall designGlulam and LVLGlulam introduction and propertiesLVL introduction and propertiesGlulam and LVL-SpecialsGlulam and LVL site considerationsGlulam and LVL fixing details131415161718Wall designIntroduction / Design considerationsThermal performanceW-detailsWe currently offer a face to face seminar on engineered wood products for modernmethods of construction. These are offered for larger practices in the UK and Ireland.Please visit our website to request a face to face seminar and find out how to take ourCPD online.Whilst every effort was made to ensure the accuracy of this publication at the time of printing, James Jones & Sons cannot be held responsible forchanges to Building Regulations, NHBC Standards etc. For the most up-to-date information please visit our website: 3536373841424344

1Russwood offices-NewtonmoreRusswood offices-NewtonmoreSection 1The JJI-Joist systemThe JJI-Joist system is available from a network of authorised distributorsthroughout the UK and Ireland, who offer an estimating and design serviceinclusive of JJI-Joist layout plans, engineering calculations and material costings.www.jamesjones.co.uk

Engineered wood components2JJI-JoistsA JJI-Joist is a composite engineered timber joist combining 45mm deep high-grade finger jointed softwood flanges with a 9mm thickoriented strand board web. Four flange widths are available at 47, 63, 72 and 97mm wide. Using advance technology these componentsare combined to produce an innovative alternative to conventional construction timber with many advantages. JJI-Joists are producedto UK preferred dimensions.The workhorse of the system, a versatile light weight structural member ideal for floor joists, rafters, purlins and wall studs.Forestry Commission offices-InvernessJJ-Beam (Glulam)JJ-LVL (Laminated Veneer Lumber)JJ-Beam, Glue laminated timber (glulam) is a high strength andstiffness beam product that is an ideal choice for demandingapplications and heavily loaded members.JJ-LVL is an advanced wood product suitable for a wide range ofstructural applications. Available in two specifications;JJ-LVL-Beam and JJ-LVL-Rim. LVL is exceptionally strong for themost demanding of om/MetalworkJames Jones and Sons continues to work closely with the UK’s leading engineered timber connector manufacturers. Only connectorsapproved by James Jones and Sons should be used within our system. All connectors are available from JJI-Joist distributors as part ofthe JJI-Joists system es.co.uk

Design tools and software3Design toolsEfficiency of design, manufacturing and on-site installation is key to the success of the JJI-Joist system. Through the development of ourown design and optimisation software and its integration with external design and manufacturing software, we continue to remain atthe forefront of industry innovation and the push for system integration for both traditional and offsite construction.SoftwareCAD and BIM (Building Information Modelling)The JJI-Joist system is fully supported by three Windows basedsoftware packages written in the UK to provide fast and costeffective design solutions for today’s construction industry.The James Jones software is fully integratable into the latestindustry design software allowing both the import and exportof design files. We currently export complete joist layouts incompliance with BIM level 2. For more information pleasecontact James Jones and Sons Ltd.JoistMaster is a powerful beam design tool for specification andcost analysis. Freely available to download fromwww.jamesjones.co.ukJJI Design is a comprehensive floor design and layout packageproducing detailed layout drawings, material call-offs andoptimisation, installation details and export files for CAD andBIM integration. OptiMaster is a stock inventory and materialoptimisation tool aimed at improving the operational efficiencyof the cutting and stock control process.NotesIf in doubt ASK.Do not scale this drawing.Joists are designed in accordance with EN 1990, EN 1991 and EN1995 and their National Annexes, with information from TRADAETA-10/0335.Plasterboard specification as per manufacturer's guidelines.A water cylinder/thermal store load provision of 150kg has beenallowed unless noted otherwise.JJI-Joists at 600mm centres unless noted otherwise.Loading:0.500 kN/m2 Permanent Self Weight0.450 kN/m2 Permanent Partition1.500 kN/m2 Medium Term Live Loadunless otherwise noted.Deflection Limits:Final Deflection Limits,with Directly Applied Ceiling Lining:Spans: L/250 Cantilevers: L/125without Directly Applied Ceiling Lining:Spans: L/250 Cantilevers: L/125Inst. Deflection Limit (where applicable):12.000mm or L/3334673This layout is for an Intermediate Floor.610Restraint Strap numbers and positions are the responsibility of theBuilding Designer. Straps shown are indicative.J11F8300J11BQty22024785918120F41D x1251200F22J10B6J6B1BB4 * J7 (JJI245A -24 1Ply)B4BB227003 * J9 (JJI245A -24 1Ply)600205600DJ15350BB B4 * J4 (JJI245A -24 8600BCBBlock RequirementsType SizeMaterialBack 150x350 44mm KDWeb 150x300 25mm Ext. PlyMetalwork RequirementsMark TypeA UH-46-235-(iii)B UH-50-235-(i)C UH-50-235-(ii)D CullenHV-GR-240-2CullenHV-GR-240-3UZ38Extra Timber RequirementsTypeMaterialPerimeter NoggingCLSPerimeter NoggingCLSPerimeter NoggingCLSPerimeter NoggingCLSPerimeter NoggingCLSPerimeter NoggingCLSPerimeter NoggingCLSPerimeter NoggingCLSPerimeter NoggingCLSPerimeter NoggingCLSPerimeter NoggingCLSPerimeter NoggingCLSPerimeter NoggingCLSPartition NoggingCLSPartition NoggingCLSPartition NoggingCLSStrap NoggingCLS3712CBSpan Ply Weight(kg) Qty 565141.7122873115.521 7x24597x24545x24547x24563x24563x24597x24597x245A helpful interactive span table can be found on the James Jones &Sons website at 003 * J14 (JJI245D-24 1Ply)6002850J13Joist RequirementsMark TypeJ1 JJI245A -24J2 JJI245A -24J3 JJI245A -24J4 JJI245A -24J5 JJI245A -24J6 JJI245A -24J7 JJI245A -24J8 JJI245A -24J9 JJI245A -24J10 JJI245B -24J11 JJI245B -24J12 JJI245B -24J13 JJI245C-24J14 JJI245D-24J15 JJI245D-24B1 JJ BeamB2 JJI245A -24B3 JJI245B -24B4 JJI245B -24B5 JJI245D-24B6 JJI245D-24Interactive span table1168F8F85125100538538J15J1231608385Client James Jones & SonsAddress 26 West Road, ForresSite2019 RangeJames Jones & Sons Ltd 26 West Road Greshop Industrial Estate Forres Moray IV36 2GWCopyright James Jones & Sons Ltd. (1999-2017) FloorMaster Version 4.02.032 on Thursday 29th November 2018 09:20:02File:C:\Users\G.Barclay\Desktop\TECH manual layout\tech man layoutHouse Type. Falconer - First FloorDesigner. Grant Barclay26 October 2018 09:57:28Revision4.02.032 SScale 1:50www.jamesjones.co.uk

Environmental considerations4Environmental considerationsEnvironmental considerations are a critical factor in the production of our JJI-Joists. Our environmental management system has enabledthe company to target key areas to reduce the impacts of our activities on the environment.ISO 14001Sustainable timber sourcing & chain of custodyOur commitment to ISO 14001:2004 from start-up, not onlyguarantees our compliance with all current and forthcominglegislation but delivers a JJI-Joist with excellent and continuallyimproving environmental credentials.Sustainable timber supply has always been integral to themanufacture of our engineered wood products. ConsequentlyJJI-Joists are able to be specified as FSC or PEFC Certified. Allproduct claims are independently verified by a certification bodyon an on-going basis.Carbon Accounting and Life Cycle Assessment (LCA)Environmental Product Declaration (EPD)Our third key sustainability element is our Environmentalproduct declaration (EPD) which has been independently verifiedaccording to the EPD International Method and it is managed byEnvirondec.Environmental Products Declarations (EPDs) are voluntaryassessment documents that offer quantified information over arange of environmental impacts within the boundaries definedby companies, i.e. (greenhouse gases emissions, water usageand energy). They are produced using a Life Cycle Approach(LCA) using internationally accepted methodologies and theyare independently reviewed which makes them more robust tostakeholder criticism.Through this EPD we can calculate the carbon capture withinour JJI-Joists from individual house design to full supply contractvolumes. Increasingly supply chain partnerships are beingdeveloped with key clients to enable our quantified carbonnegative supply to support and contribute to downstreamCorporate Social Responsibility (CSR) commitments.To view our EPD please visit: www.environdec.comwww.jamesjones.co.ukOur LCA measurements enable our environmental performanceprofile to be measured and improved upon by assessing allenvironmental impacts associated with the sourcing, transportand manufacture of our product (i.e. from the forest to the enduser).Improved supply logistics, new resin formulations and improvedbiomass heating efficiencies are recent examples of targeted andquantifiable improvements within the life-cycle performance ofour JJI-Joists.

5Russwood offices-NewtonmoreSection 2JJI-JoistsA JJI-Joist is a composite engineered timber joist, combining 45mm deep high-gradefinger jointed softwood flanges with a 9mm thick oriented strand board (OSB/3) web.www.jamesjones.co.uk

Introduction6IntroductionThe JJI-Joist relies on a unique combination of engineered products designed to complement each other and deliver outstandingperformance. These materials have different specific properties and by combining the two materials in this way to form a compositesection you can use the strengths of each one where it is needed most. This results in the new section outperforming the individualmaterials that it is made from (the sum is greater than its parts) making it more structurally efficient.Using advanced technology these components are combined to produce an innovative alternative to conventional construction timberwith many additional advantages.JJI-Joist CompositionJJI-Joist flange sizesA Softwood flangeHigh tensile andcompressivestrength is used tocarry the bendingloads which aregreatest at the topand bottomB CD45mm9mm OSB webHigh shear strength isused to carry the shearloads which are greatestat the mid depth of thesection45mm47mm63mm72mm97mmAdvantagesJJI-Joist rangeJJI-Joists are designed to give a superior strength to weightratio when compared to traditional solid timber enabling themanufacture of longer and lighter structural members. TheJJI-Joist, with a softwood flange: Is capable of spanning longer distances Is easier to handle Is easier to fix and nail Is less prone to splitting Is quicker to install Is extremely stable Reduces building maintenance Provides a less complex design solution Is simple to specify using product specific software Has Part E compliant details available Is FSC or PEFC accredited Has very low embodied energy Has independently assured carbon accounting to ourEnvironmental Product Declaration (EPD)JJI-Joists are available in a comprehensive range of sizes,designed specifically for the UK market.JJI-Joist Product Range UKA 47 Flange sizes in mmB C6372 D97 350 400 JoistDepthmm195220235245300450 Table 1. JJI-Joist product rangeJJI-Joist identification and markingFor onsite identification and traceability, all JJI-Joists are clearly marked with product and manufacturing information. The largemarkings on the OSB web detail the joist depth, flange size, manufacturing time/date and ETA product approval. Further informationprinted on the top and bottom timber flanges detail the timber strength class, chain of custody confirmation and a warning ‘DO NOTCUT FLANGES’.www.jamesjones.co.uk

JJI-Joist properties7JJI-Joist propertiesIt is possible to design JJI-Joist structures using either a Permissible Stress Design Code (BS 5268-2) or a Limit State Design Code(EN1995-1-1/Eurocode 5). Permissible stress design properties, intended for use with BS 5268-2 and characteristic capacities, intendedfor use with Eurocode 5, can be found in BM TRADA ETA /SN/SW/SW(mm)(kNm)(109 .70JJI 220 B .35JJI 220 3.72JJI 220 762.79JJI 235 B .44JJI 235 83.80JJI 235 .762.85JJI 245 B .50JJI 245 83.86JJI 245 .763.17JJI 300 B 23.82JJI 300 484.18JJI 300 30.006.7917.549.2322.206.07Joist TypeJJI 195 A JJI 195 CJJI 220 A JJI 235 A JJI 245 A JJI 300 A JJI 350 C220235245300350JJI 350 DJJI 400 C400JJI 400 DJJI 450 fnessIntermediate bearingcapacity – minimum89mm bearing lengthEnd bearing capacity– minimum 45mmbearing lengthEnd bearing capacity– minimum 89mmbearing lengthWeightper metrelengthTable 2. Characteristic capacities for JJI-Joists (Eurocode 5)Notes for Table 2:1.All strength properties are for joists acting as non-systems. For joist acting as asystem multiply values by 1.1 (K2.Advice on choosing appropriate partial factors for limit state design can befound in ETA-10/0335sysMinimum end bearing length 45mm, minimum intermediate bearing length 89mm3.4. 1.1)5.Lateral buckling checks should be performed during the design of structuresusing JJI-Joists if both flanges are not fully restrainedN/S: no web stiffeners required, W/S: Web stiffeners requiredCharacteristic JJI-Joist vertical load capacities whenfully supportedJJI Joist DepthCharacteristic load per metre 040032.045031.0JJI POINT LOAD AND UDLUDLPLbTable 3. JJI-Joist vertical loadsNotes for Table 3:1.Values for point load can be calculated as P UDL x (L 60)/1000 where L isthe contact length of the load applied in mm2.3.bbThe beam is considered fully restrained, effects of buckling have been ignoredAllowance may be made for load spreading of sole plates and bottom rails atthe designers discretionwww.jamesjones.co.uk

Service holes8JJI-Joist hole installation guide: Circular, Square and Rectangular HolesService holes MUST NOT BE CUT in the JJI-Joist flange.The maximum size of a service hole that can be cut in the web of a JJI-Joist at a particular location depends on the specific loadconfiguration on the joist. The table below gives the minimum required distance, L (mm), from inside face of support to nearest edge ofhole for uniformly loaded, simply supported joists under standard domestic loading of 0.75kN/m2 dead load and 1.5kN/m2 imposed loadat up to 600mm centres. Where this is not the case, the hole(s) can be assessed using the JoistMaster software. Contact your distributorfor advice.Hole Size (mm)JoistDepth(mm)JoistSpan(mm) 005075100 0300300300125 10001185140258674791810971353300300449670822150 175 061937225613081513172219352066200 6193722561542176219852210234814771693191221352271 6926132761Table 4. Allowable Locations for Circular, Square and Rectangular Holes (Domestic Applications)Notes for Table 4:1.2.6.Table 4 has been calculated for joists in intermediate domes tic floors22Plastic plumbing is ideal with JJI-Joists. Where copper plumbing is(G 0.75kN/m ,q 1.5kN/m ,Q 2kN) at 600mm centresto be used, careful consideration of the sequence of pipe installation isWhere more than one hole is to be cut, the minimum spacing betweenrequiredkkkholes must be 2 times the width of the largest hole7.3.The rectangular hole width b should not exceed 1.5xD8.The bearing support length used for this table is 45mm4.Cut all holes carefully, do not overcut and do not cut flangesprovided there is a minimum of 35mm from the edge of the hole to the end of5.Where holes are required in rim and header joists of timber framethe joist and it is not directly over a supportA 35mm hole may be drilled any where on the centre line of the web materialconstruction refer to the building designerService hole diagramD1D2xDLSee hole chartsHole spacing2 x larger ofD1 or D2Alternative solutions - reinforcing platesFor guidance on using reinforcing plates forlarge and highly loaded applications pleasecontact your JJI-Joist distributor.www.jamesjones.co.uk3mmD2DHole spacing2 x larger ofb or D2Span3mmbLSee hole charts

Acoustics9Acoustic requirementsJJI-Joists can be used in both intermediate and separating floors that comply with current building standards.England and Wales, Building Regulations Part E (Resistance to the Passage of Sound), October 2015, Section 5: 5.23 Internal floor type Cand Section 3: 3.1 Floor Type 3.1A.Scottish Building Standards, Section 5 (Noise), October 2011, Scottish Government Example Construction and Generic InternalConstructions, Section 4.c: Floor Type 2 & 2A and Section 10: Floor Type 3B.Intermediate floorsJames Jones & Sons Ltd. have undertaken further acoustic tests to provide the builder with alternative solutions to that found in theabove national standards. Fo

JJI-Joists A JJI-Joist is a composite engineered timber joist combining 45mm deep high-grade finger jointed softwood flanges with a 9mm thick oriented strand board web. Four flange widths are available at 47, 63, 72 and 97mm wide. Using advance technology these components

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