Lesson Summary

7
Lesson Summary 12.11.07 Compiled by M. S. Martin – Nov. 2007

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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. - PowerPoint PPT Presentation

Transcript of Lesson Summary

Page 1: Lesson Summary

Lesson Summary

12.11.07

Compiled by M. S. Martin – Nov. 2007

Page 2: Lesson Summary

Bearer & Joist Calc’s

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 + 0Spacing'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

Review your work exercises

Page 3: Lesson Summary

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.

Page 4: Lesson Summary

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.

Page 5: Lesson Summary

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

Page 6: Lesson Summary

Openings in Floors

Remember trimming joists shown here can also be refered to as “Curtailed Joists”

Page 7: Lesson Summary

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.