09-27-2009, 10:40 PM
(08-22-2009, 11:27 AM)shark Wrote: i want to know, how we calculate length of shear wall required for a building? what formulas involved? im using British Standard. Thank you
At very preliminary stage, if a 3D software is not used, an average shear stress of wall to be 2~3MPa should be conservative. Based on this, you can guess how much shear wall area you need.
The other way os to use a ratio 1%~3% of total building area.
I prefer the 1st one, which gives more physical insight. However, many a time, a quick model may serve many purposes.
Handcheck analysis: Force balance at various sections under grav. load and lat. load cases. Such exercise will not only ensure the correctiness of your model, but also provides lots of insight of struct behaviors. Always starting from simple, where you can easily tell if results are right or not.