Building Loading - Wind loading calculations to SANS 10160-3 for an industrial building - SD424

Worked example explaining how to calculate wind loads on a portal framed building using SANS 10160-3. This covers the determination of pressures, internal and external pressure coefficients, and the calculation of line loads on structures.
Produced for the SD424 Structural Design course.
Copyright Stellenbosch University.

[@yehudawolovitz2777]

These videos are gold. Thank you so much. Keep it up.

[@sandilesibiya812]

Thank you the clearly explained example. I really appreciate it.

[@nonjabulogumbi3296]

Thank you so much for the explanation, very clearly explained.

[@supersaint6504]

very sweet voice you had, good explanation, thanks for uploading.

[@nil0kal027]

Very well explained. Thank you

[@adeleoosthuizen2852]

Thank you so much. :-) Much appreciated

[@qinisolunga4770]

Thank you very much

[@rhyanwudraj9522]

Good Day. I have found your series of videos on wind loads very informative. The code itself can be a little confusing. Is it possible for you to share a copy of the question paper being worked through?

[@dylandewilzen1864]

Morning, I would just like to find out if the same principle would apply in the calculation of the internal pressure coefficients if the door opening in the above example now extended the full length of zone E(wind dir 0) ( 3 sides closed and 1 side permanently open)? For the 0 wind direction, would the Cpi=0.9 x Cpe(zone e) and for the 180 wind direction (wind blowing into opening) be Cpi = 0.9 x Cpe(Zone D)?

[@nonjabulogumbi3296]

May you kindly do the truss design loading

[@foxmk1782]

May you please give us the name/terms of symbols on the roughness calculations

[@tambwemangalafrixel9061]

Sir, why are we using the apex height (5.5m) for calculating side pressures and roof pressures both on the Windward and Leeward sides instead of the height at the eaves(4.m)

[@saravanakumar2702]

Thank you so much, May I know the ultimate safety factor for wind (ULS)

[@richard_walls]

Hi. It's 1.6 in South Africa (used to be 1.3). Thanks

[@saravanakumar2702]

@@richard_walls Can i have the reference document link

[@richard_walls]

@@saravanakumar2702 The document is SANS 10160-1 (loading) or SANS 10160-3 (wind). The codes can be purchased from the SABS.

[@lwandilembewana5587]

Hi, for taller buildings as in case b and c in Figure 7, do you have to calculate the wind pressures using the heights specified there like the way you did for the eaves and apex wind pressures?

[@richard_walls]

That is correct. Zone D has multiple pressure zones with multiple z values for the pressures.

[@lwandilembewana5587]

@@richard_walls thank you very much

[@masithembedumezweni3473]

@@richard_walls Good day sir, I would like to know how do you approach wind loading for a Tuscan roof double storey office, with timber trusses

[@richard_walls]

@@masithembedumezweni3473 have a look in the roof profiles provided in SANS 10160-3 and get the closest to your shape. Some interpolation may be required between layouts. The material used, eg timber, had no influence on the pressures, but rather the shape.

[@georgen9755]

Only purlins are visible from balcony