I have a few queries about the formulas used in designing eccentricity.
Firstly we establish ex, which is the distance to the revised centre of gravity...and then ex/A re written as 1/?
K the equals 1± 6/?. Am I correct in thinking that the 6 in this calculation formula is a constant? Also the...
Ahh I get it guys. So the B we determine is what is required timber wise as opposed to what is actually produced. And when working the calc through to find Mr (moment of resistance) it works out less if the lesser grade timber is used as you would expect.
Thanks CELinOttawa and bouk715!
Hi and thanks for coming back to me.
OK I understand the ratio and the effect the steel would have on the timber. I get that by calculating this ratio we are in effect, increasing the width 'B' for the timber section, thus finding an equivalent B by sandwiching a steel plate between the two...
Hi
I've been following an example of flitch beam design and I just don't get it.
The engineer's example shows e of steel as 210000n/mm2 and e of timber SCIV as 6600n/mm2 x modification factor k9 of 1.14. The plate thickness of the steel is 8mm so he gives an equivalent B of timber as...