To find out more about MEGAjoist TM product & system, call our office. Or visit our web site: VIC (03)

Transcription

1 To find out more about MEGAjoist TM product & system, call our office Or visit our web site: VIC (03)

2 INTRODUCTION Australian Building Products (ABP), founded in 2011, has a manufacturing facility strategically positioned to service the Melbourne market. ABP is engaged in providing products to the building industry. Strategic relationships are being developed in regional areas in order to increase the customer base. ABP's customer base includes builders, developers and owner builders. Principal business activities include floor joist & rafter manufacturing for residential and small to medium commercial projects, and the development of new products for the domestic market. MEGAjoist TM uses solid timber flanges, and intermediate timber webs that are glued together which acts more like a timber beam than a truss, thus giving the completed floor system a more solid feel. GENERAL NOTES Conventional framing practice can also be applied to MEGAjoist TM installations: however, to get maximum benefit from using the MEGAjoist TM system, builders are strongly advised to take advantage of its unique features by adopting the following guidelines. To meet the requirements of the Building Code of Australia (BCA), all work must comply with AS and where applicable with MEGAjoist TM installation guidelines. For details not covered in this manual please contact our registered structural engineer. 1

3 ADVANTAGES MEGAjoist TM offer the following advantages over solid joists: Fully Australian made Environmentally friendly Very easy to install Cost effective Foot trafficable to & bottom flanges Penetrations that all line up allowing for easier installation of the plumbing and electrical services Ready-made service penetrations Great strength and durability Little or no lead time Fully site dock-able Engineer designed and certified Strong Back bracing increases floor stiffness and reduces squeaky floor Optional to chord support reduces on site labour Top chord hanging Supplied End Blocks are designed to support structural raking loads and allow for easier installation H3 treated pine is used for external applications such as decks 2

4 FLOOR LOADING MEGAjoist TM have been designed for the following Dead and Live Loads: Dead Loads are constant in magnitude and fixed in location throughout the life time of the structure. Floor dead loads used for production is 0.5 kpa. (50 kg/m 2 ) Live Loads are temporary loads due to furniture or people which may vary over time. Floor live loads used for production is either 1.5 kpa (suitable for domestic floor) or 3 kpa (suitable for commercial floor). FACTOR THAT CAN AFFECT FLOOR PERFORMANCE Method of installation Fixing of sheeting to joist Floor joist centres FACTOR THAT CAN IMPROVE FLOOR PERFORMANCE Deflection of the sheeting material between joists can be reduced by decreasing the joist spacing or using a thicker and/ or stiffer floor sheeting Proper installation is essential for reliable performance. HANDLING AND STORAGE MEGAjoist TM can be laid flat nested in rows, provided they are clear of ground. MEGAjoist TM can be stacked on top of each other, and should not be left exposed to weather for extended periods of time without adequate protection. TRIMMING LIMITATIONS FOR MEGAjoist TM MEGAjoist TM can be trimmed on site. MEGAjoist TM are required to be manufactured to the required span for each project. If adjustments to span are required for MEGAjoist TM you should contact us. MEGAjoist TM can be trimmed at either end to leave a minimum of 90mm block remaining on the joist end. 3

5 SAFETY WARNING 1. The reliability and safe use of these products can be seriously impaired if they are damaged. Do not install any damage products. Contact MEGAjoist TM on (03) if any damage is noted. 2. Permanent sheeting must be completely installed and properly glued and nailed before additional loads can be placed on the system. 4

6 RECOMANDATION MAXIMUM SPANS FOR RESIDENTIAL/COMERCIAL FLOORS FLOOR JOISTS (450 CTS) RAFTERS raked at 1 (Sheet roof) 1.5 KPa 3.0 KPa 600 CTS 900 CTS JOIS Flanges MAX. MAX. MAX. MAX. SPAN SPAN SPAN SPAN MJ x 45 MGP10 pine MJ x 45 MGP10 pine MJ x 45 MGP10 pine MJ x 45 MGP10 pine Note: For extra solid floor use the next joist size up from the specified size. ALL FLOOR LOADS (UPTO 3.0kPa LL) 450 CTS 600 CTS JOIST Flanges MAX. SPAN O/HANG MAX. SPAN O/HANG MJ250 CL 90 x 45 MGP10 pine MJ280 CL 90 x 45 MGP10 pine MJ330 CL 90 x 45 MGP10 pine MJ380 CL 90 x 45 MGP10 pine Note: In compiling the span tables in this manual, the requirements of the relevant Australian standards and codes along with established industry standard design guidelines for Residential/commercial construction have been followed. In a particular, the following codes and references have been used: AS Timber Structure design methods AS Structural design actions-permanent imposed and other actions SEVICEABILITY CRITERIA Max Dead load deflection - lesser of span/300 or 12mm (j 2 = 2) Max Dead & Live load deflection lesser of span/300 or 12mm 5

7 MEGAjoist & MEGArafter STANDARD DETAILS 6

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