2007-10-21 00:44:03 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Engineering
Is it because a pin joint does not resist movement?
2007-10-21 00:49:32 · update #1
A pin joint introduces a stress point (hole) in a beam that is not there in a fixed joint so the beam should be made thicker to tolerate this extra stress factor for a given load requirement.
2007-10-21 02:36:21 · answer #1 · answered by paul h 7 · 0⤊ 0⤋
i can't understand your question...hehe
'if you have a steel structure and a pin joint is used, do you need to have a thicker beam'? <-is this what you mean?
actually it depends on the pin joint, if it can support the weight of the beam and lthe oad... thicker beams can support heavier loads because their mass moment of inertia is bigger; but when you include effectivity of the pin joint, you need to have thinner joint unless your joint can support the structure...
:D
2007-10-21 08:04:20 · answer #2 · answered by kamoteman 2 · 0⤊ 0⤋
one consideration is that if the beam is too thin it may fail by crushing of the area around the pin hole.
2007-10-21 10:40:14 · answer #3 · answered by bignose68 4 · 0⤊ 0⤋