For the truss itself, the assumption is always point loads only and applied only at the joints (i.e. no point load applied to a truss member between two joints). If the truss supports a bridge deck, the deck itself may be considered a distributed load, but then that would have to be converted into point loads and then applied to the joints of the truss as appropriate.
The convention is that when you draw the free body diagram, all members that are "sectioned" are in tension (seen at 2:15 & 4:30). Once all of the calculations are completed a positive answer indicated that this assumption is correct (i.e the beam is in tension) & a negative answer indicates that the assumption was incorrect (i.e the beam is in compression). Also, getting the assumption wrong ( a negative result) is perfectly normal & is nothing to worry about:)
Why would you ever use the imperial system for calculating forces...
Savages
why use the imperial system for anything?
I would really appreciate it if you could make a video about how to convert uniformly distributed loading on the truss to point loads.
For the truss itself, the assumption is always point loads only and applied only at the joints (i.e. no point load applied to a truss member between two joints). If the truss supports a bridge deck, the deck itself may be considered a distributed load, but then that would have to be converted into point loads and then applied to the joints of the truss as appropriate.
What will be the force BF
which members are in tension and which are in compression?
The convention is that when you draw the free body diagram, all members that are "sectioned" are in tension (seen at 2:15 & 4:30). Once all of the calculations are completed a positive answer indicated that this assumption is correct (i.e the beam is in tension) & a negative answer indicates that the assumption was incorrect (i.e the beam is in compression).
Also, getting the assumption wrong ( a negative result) is perfectly normal & is nothing to worry about:)
Thank you sir
How would I find Ab and AH
Method of Joints
Thank youu