thanks all for the help, and dhengr for the encouraging advice. i am infact, Qshake, a part-time civils student but this wasnt homework. i have plenty of that though if anyone knows their water infrastructure and retaining walls ;0)
sketch is uploaded this time
thanks ussuri, yes the bracket failed but in practice the thickness was increased to make it work. im actually just trying to determine how the moment capacity of 0.66 kN.m is calculated, for future reference
i made a slight error, as you can see from the sketch...
thanks, i have the use of the steel designers manual, with all the relevant extracts from British Standard 5950. I am still unsure of how to derive the maximum moment capacity using it??
it is actually a real problem but already solved by a structural engineer(the thickness of the bracket was...
if i have a load of 21kN acting @ mid-span of 100mm horizontal leg of bracket:-
f = M.y/I M = 21kN x 0.050m = 1.05 kN.m y = 0.004m
I = 4,267mm4 = 0.4267m4
f = 1.05 x 0.004 / 0.4267 = 0.01 kN/m²
please correct me if im wrong. if not, again how do i...
hi another query if anyone doesnt mind...
i was indeed talking about a shelf angle with the horizontal leg loaded, so as above
I = bd³/12 = 100 x 8³/12 = 4,267mm4
how do i then calculate the maximum bending moment capacity of the bracket in kN.m?? thanks
ok so by ish's reckoning above do i now have 146000mm4 x 206000 N/mm2 = 3.0076x10^10 N/mm2 ???
this then gives 3.0076x10^13 kN/m2...i feel i must have something wrong as this is a rather large figure?!?
thankyou, i actually might have calculated the moment of inertia wrong, i wonder if you can go though it? L shaped steel bracket. 100mm wide x 100mm long x 8mm thick. thanks
hello, im trying to workout the bending stiffness of a steel L shaped bracket.
E = 206,000 N/mm2
I = 1460.546 cm4
can snyone help with how to multiply these two??
thanks
