Transcription
21 Econo Place,Silverdale, NSW 2752P 1300 132 787F 02 4774 2679www.quickbuiltsystems.com.auSPAN TABLESROSS Engineers have prepared these tables for use by people skilled in the design and specificationof the type of structures covered. ROSS Engineers accepts no responsibility for misinterpretation ofthe information provided or omissions. Users should satisfy themselves as to the suitability of thespan tables for their applications
ContentsIntroduction . 2Australian Standards . 2Design Loadings . 2Base Loads. 2Wind Loads. 2Ultimate Limit State . 2Serviceability Limit State . 2Serviceability Deflection Limits . 2Roof Pitch . 3Posts . 3Construction Notes . 3General. 3Structural Aluminium . 3Material Section Properties for 100 x 50 ALYSPAN Beam . 4Material Section Properties for 150 x 50 ALYSPAN Beam . 5Connections Schematics . 6Standard Connections . 6Wind Class . 7Regional Wind Speed: . 7Design Gust Wind Speed for Non-Cyclonic Regions A & B . 7Pressure Coefficients:. 7Case 1 . 7Case 2 . 8Wind Pressures: . 8Span Tables for Case 1: Maximum Building Height 4.8 m . 9Span Tables for Case 2: Maximum Building Height 12.0 m . 13Design Certificate . 171
IntroductionThese span tables have been prepared for the use of Quickbuilt Systems ALYSPAN StructuralAluminium Beam for attached patio, awning, and carport designs only. For the purposes of thesetables, roofs are deemed attached to an existing approved dwelling.Australian StandardsThe structural sections comply with the following Australian Standards.oooooAS 1170.0 – 2002 Structural design actions – General PrinciplesAS 1170.1 – 2002 Structural design actions – Permanent imposed and other actionsAS 1170.2 – 2002 Structural design actions – Wind actionsAS 4055 – 2006 Wind Loads for HousingAS 1664 – 1997 Aluminium StructuresAll other proprietary products to be in accordance with the manufacturers specifications.Design LoadingsBase LoadsoDead Load (DL) - 0.2 kPa – Only roof sheeting is allowed for.oLive Load (LL) – (1.8/A 0.12 0.25) kPa where A is the roof tributary area in m2.Span tables are designed for non-trafficable roofsWind LoadsoSpan tables have been designed for the following wind classification regions:N1, N2, N3, N4, N5Where:Wu ultimate wind load (upwards or downwards)Ws serviceability wind load (upwards or downwards)Ultimate Limit Stateo 1.2 DL 1.5 LLo 1.35 DLo 0.9 DL Wu (upwards)o 1.2 DL Wu (downwards)Serviceability Limit Stateo DL Ws (upwards)o DL Ws (downwards)Serviceability Deflection Limitso Dead Load: Span/300o Wind Load: Span/3002
Roof PitchUse recommended minimum roof pitches as specified by roof sheet supplier. The span tables in thisreport allow for a maximum roof pitch of 5 .PostsThese span tables are designed for a minimum post size of 50 x 50 x 2.5 mm and up to a maximumheight of 3.0 m.Construction NotesGeneralThe following guidelines shall be adhered to at all stages of construction:oooooooVerify all setting out dimensions with architect. Contractor shall verify all dimensions,elevations, property lines etc. on the job site.Do not obtain dimensions by scaling the structural elements.Should any ambiguity, error, omission, discrepancy, inconsistency or other fault exist or seemto exist in the contract documents, immediately notify in writing to the superintendent.Maintain the structure in a stable condition during construction. No part shall be overstressed.Temporary bracing shall be provided by the contractor to keep the works stable at all times.All workmanship and materials shall be in accordance with the requirements of current SAAcodes and the by-laws, ordinances or other requirements of the relevant building authorities.Where patio covers are to be installed on an existing patio slab, the slab shall be in goodcondition. Posts shall be located where the slab is free from cracks, deterioration,honeycombing or where other poor workmanship exists.It shall be the responsibility of the contractor to shore and brace as required.Structural AluminiumooAll workmanship and materials to be in accordance with AS 1664 except where varied bycontract documentsStructural aluminium shall be erected plumb and true to line. Temporary bracing shall beinstalled and shall be left in place until other means are provided to adequately brace thestructure.3
Material Section Properties for 100 x 50 ALYSPAN BeamoAlloy: 6063 – T6oIxx 227424.285 mm4oIyy 900454.930 mm4oArea 599 mm2oWeight 1.635 kg/m4
Material Section Properties for 150 x 50 ALYSPAN BeamoAlloy: 6063 – T6oIxx 321160.818 mm4oIyy 2369265.013 mm4oArea 759 mm2oWeight 2.072 kg/m5
Connections SchematicsRefer to manufacturer for further details regarding brackets and fixings.Standard Connections6
Wind ClassWind classifications have been chosen as per AS4055. The table below show the design wind speedsfor wind classes N1 through to N6.Regional Wind Speed:Design wind speeds where adopted from AS4055Design Gust Wind Speed for Non-Cyclonic Regions A & BWind ClassificationRegions A & B (Non-Cyclonic)N1N2N3N4N5N6Design Gust Wind Speed (m/s)Ultimate Limit State, VuServiceability Limit State, Vs342640265032613974478655Pressure Coefficients:Pressure coefficients were adopted from 1170.2:2011 Appendix D -Table D8.Case 1For the awning pitched roofs, with the following parameters:o Minimum Awning Height (hc) 2.4 mo Maximum Building Height (h) 4.8 mPressure coefficients for attached roof for worse case for 0-5 degree pitchWind DirectionUpliftDownliftNet pressure Coefficient (Cp,n)-1.50.57
Case 2For the awning pitched roofs, with the following parameters:o Minimum Awning Height (hc) 2.4 mo Maximum Building Height(h) 12.0 mPressure coefficients for attached roof for worse case for 0-5 degree pitchWind DirectionUpliftDownliftNet pressure Coefficient (Cp,n)-0.20.7Wind Pressures:Wind Pressures for Case 1: Maximum Building Height 4.8 mWind ClassificationRegions A & B(Non-Cyclonic)N1N2N3N4N5N6Ultimate CaseUpwardDownwardPressure (kPa)Pressure -6.662.22Serviceability CaseUpwardDownwardPressure (kPa)Pressure -2.720.91Wind Pressures for Case 2: Maximum Building Height 12.0 mWind ClassificationRegions A & B(Non-Cyclonic)N1N2N3N4N5N6Ultimate CaseUpwardDownwardPressure (kPa)Pressure -0.893.11Serviceability CaseUpwardDownwardPressure (kPa)Pressure -0.361.278
Span Tables for Case 1: Maximum Building Height 4.8 mSingle Span – No 00100 x 50 mm ALYSPAN BeamSingle Span – No OverhangMax. Adjacent Building Height 4.8 mMaximum Allowable Span 0018001700160015001400130013001200150 x 50 mm ALYSPAN BeamSingle Span – No OverhangMax. Adjacent Building Height 4.8 mMaximum Allowable Span 13009
Span Tables for Case 1: Maximum Building Height 4.8 mSingle Span – Up to 600mm 00100 x 50 mm ALYSPAN BeamSingle Span – Max. 600 mm OverhangMax. Adjacent Building Height 4.8 mMaximum Allowable Span 0019001800170016001500150014001400150 x 50 mm ALYSPAN BeamSingle Span – Max. 600 mm OverhangMax. Adjacent Building Height 4.8 mMaximum Allowable Span 140010
Span Tables for Case 1: Maximum Building Height 4.8mEqual Continuous Span – No 00100 x 50 mm ALYSPAN BeamEqual Continuous Span – No OverhangMax. Adjacent Building Height 4.8 mMaximum Allowable Span 0017001600150014001300130012001200150 x 50 mm ALYSPAN BeamEqual Continuous Span – No OverhangMax. Adjacent Building Height 4.8 mMaximum Allowable Span 120011
Span Tables for Case 1: Maximum Building Height 4.8mEqual Continuous Span – Up to 600mm Overhang100 x 50 mm ALYSPAN BeamEqual Continuous Span Max. 600 mm OverhangMax. Adjacent Building Height 4.8 mMaximum Allowable Span 01300450031002600200016001300150 x 50 mm ALYSPAN BeamEqual Continuous Span Max. 600 mm OverhangMax. Adjacent Building Height 4.8 mMaximum Allowable Span 30012
Span Tables for Case 2: Maximum Building Height 12.0 mSingle Span – No 00100 x 50 mm ALYSPAN BeamSingle Span – No OverhangMax. Adjacent Building Height 12.0 mMaximum Allowable Span 0022002100200019001800180017001600150 x 50 mm ALYSPAN BeamSingle Span – No OverhangMax. Adjacent Building Height 12.0 mMaximum Allowable Span 170013
Span Tables for Case 2: Maximum Building Height 12.0 mSingle Span – Up to 600mm 00100 x 50 mm ALYSPAN BeamSingle Span – Max. 600 mm OverhangMax. Adjacent Building Height 12.0 mMaximum Allowable Span 0022002100210020002000190018001800150 x 50 mm ALYSPAN BeamSingle Span – Max. 600 mm OverhangMax. Adjacent Building Height 12.0 mMaximum Allowable Span 180014
Span Tables for Case 2: Maximum Building Height 12.0 mEqual Continuous Span – No 00100 x 50 mm ALYSPAN BeamEqual Continuous Span – No OverhangMax. Adjacent Building Height 12.0 mMaximum Allowable Span 0023002100200019001800170016001600150 x 50 mm ALYSPAN BeamEqual Continuous Span – No OverhangMax. Adjacent Building Height 12.0 mMaximum Allowable Span 160015
Span Tables for Case 2: Maximum Building Height 12.0 mEqual Continuous Span – Up to 600mm Overhang100 x 50 mm ALYSPAN BeamEqual Continuous Span Max. 600 mm OverhangMax. Adjacent Building Height 12.0 mMaximum Allowable Span 01700450030003000240020001700150 x 50 mm ALYSPAN BeamEqual Continuous Span Max. 600 mm OverhangMax. Adjacent Building Height 12.0 mMaximum Allowable Span 70016
ABN: 22 568 304 726A: 101/1 Booth Street Annandale NSW 2038E: [email protected]: 02 9518 9373W: www.rossengineers.com.auDesign Certificate29th August 2014Quickbuilt Systems21 Econo PlaceSilverdale, NSW 2752To whom it may concernCertificate for Roof Beam Span Tables for Attached Monoslope Roofs.Ross Engineers, Practicing Structural Engineers, hereby certify that we have carried outcomputations in accordance with proper design principles, and we confirm that the design tablesconform to the Building Code of Australia and the following codes: AS 1170.1 – 2002 Structural design actions – Permanent imposed and other actions AS 1170.2 – 2002 Structural design actions – Wind actions AS 4055 – 2006 Wind Loads for Housing AS 1664 – 1997 Aluminium StructuresPrepared by:Approved By:Shaneel PrasadB. Eng (Civil) Hons. 1Structural EngineerJohn KantourosAMIEAust CEngA - 768626Structural Engineer17
Span Tables for Case 1: Maximum Building Height 4.8 m Single Span – Up to 600mm Overhang 100 x 50 mm ALYSPAN Beam Single Span – Max. 600 mm Overhang Max. Adjacent Building Height 4.8 m W Maximum Allowable Span (mm) N1 N2 N3 N4 N5 1500 3300 3300 2800 2500 2200 1800 3100 2700 2300 2100 2100 3000 2600 2300 2000File Size: 1MB
