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Lesson Summary

Lesson Summary. 12.11.07. Compiled by M. S. Martin – Nov. 2007. No. Bearers = width of Building + 1 spacings No. Bearers L-shaped Dwellings = Area 1 = Width of Room + 1 Spacing's Area 2 = Width of Room + 0 Spacing's You don’t add any for second area.

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Lesson Summary

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  1. Lesson Summary 12.11.07 Compiled by M. S. Martin – Nov. 2007

  2. No. Bearers = width of Building + 1 spacings No. Bearers L-shaped Dwellings = Area 1 = Width of Room + 1 Spacing's Area 2 = Width of Room + 0 Spacing's You don’t add any for second area No. of Joists = Internal Room Size + 1 for each room + ext..walls Spacing's No. Joists L-Shaped Buildings = Area 1 = {internal Room Size + 1 for each room} +ext..walls Spacing's Area 2 = {Internal Room Size + 0 } +ext..walls Spacing's You don’t add any for second area Bearer & Joist Calc’s Review your work exercises

  3. Ant Caps / DPC – click mouse to bring in each point • Piers & Stumps are provided with physical barriers in way of “ant caps” • Materials of – • Galvanised steel • Stainless steel • Etc. • Jointing methods • Machine pressed • Soldered • Proprietary adhesives etc. • DPC – Damp Proof Course • Provides a physical waterproof barrier against rising damp etc. • Embossed black polythene • Alcore etc.

  4. Laying Bearers & Joists - click mouse to bring in each point • Laid with Spring up • Can be crippled over pier to correct • Place outside members first • Then place intermediate members to string lines & correct • Review laying procedures in revision toolbox.

  5. Joining Bearers & Joists – review textbook, remember some are not acceptable shown in sketches

  6. Openings in Floors • Remember trimming joists shown here can also be refered to as “Curtailed Joists”

  7. Deep Floor Joists - click mouse to bring in each point • Define deep floor joists when • Depth ≥ 4 x Thickness • Types of Blocking for deep joists • Solid blocks • Herringbone struts • Beside Solid Timber, deep joists can be • LVL • Timber I-beams • Etc.

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