Triangled
Structural
- Jun 30, 2013
- 594
I am reinforcing a 4x roof beam, under a nailed diaphragm, by sistering a couple of microlams, designing it as a composite section such that the neutral axis is lowered, etcetera...
The result will be such that my extreme fiber bending stress in compression is greater than my extreme fiber bending stress in tension.
Given typical values such as for DF-Larch#1, Fb=1000, Ft=875 and Fc||=1500, I understand limiting the extreme fiber bending stress in tension to Fb (with all the factors), but do you think there is margin to allow the extreme fiber bending stress in compression to exceed Fb?
The result will be such that my extreme fiber bending stress in compression is greater than my extreme fiber bending stress in tension.
Given typical values such as for DF-Larch#1, Fb=1000, Ft=875 and Fc||=1500, I understand limiting the extreme fiber bending stress in tension to Fb (with all the factors), but do you think there is margin to allow the extreme fiber bending stress in compression to exceed Fb?