FORCES HELP
Allows calculation of the forces, angles and distances in various
force related problems, from set structures to forces in any
direction.
Equations>
Force/structural Diagrams
Method of use :
SeleSelect a beam/force structure
from the side tree menu. As example above : Beam fixed Supports
Click on the variable checkbox or enter a QUESTIONMARK(?) for the
unknown variable i.e. variable to be solved for. In the case above Fav is required to be solved
for.
Enter numeric values into the
other variables, as the above example.
Click the “Calculate” button and the unknown value
will be calculated on the display.
Note : Enter angle values in
degrees. Angles are taken from the x-axis to the force action.
Each diagram displays an axis detailing the positive direction of the
forces, all equations used to solve the problems have been
constructed using this convention of direction, only enter negative
force values in if the force direction is in the opposite manner to
the shown diagram.
For each of the problems the
following forces and combinations can be solved for :
For beam : fixed supports :
any of the forces, angles can be solved for and any of the following
combinations :fav & f1, f1 & f2, fbv & f1 & fbh, fav
& f2 & fah, fbv & f2 & fbh, fav & fbh, fav &
fbv , fbv & fah
Beam : One Fixed Support : any
of the forces, angles can be solved for and any of the following
combinations : fav & f1, f1 & f2, fav & f2 & fah, ,
fav & fbv, fbv & fah
Beam : Loading, Fixed : Only
individually can ra, rb, qo and L can be solved for. Ma and Mb refer
to the moments at each end.
Beam : Loading Slant, Fixed :
Only individually can ra, rb and p can be solved for. Ma and Mb refer
to the moments at each end.
Beam : Force, Fixed : Only
individually can ra, rb , qo and L can be solved for.
Beam : Structure 1: any of the
forces and distances can be solved for and any of the following
combinations : fah & fbh, fah & fav, fah & fbv, fah &
f1, fah & f2, fah & x1, fah & x2, fah & x3, fah &
fbh & fav, fah & fbh &fbv, fah & f1 & fbh, fah &
f2 & fbh, fbh & fav, fbh & fbv, fbh & f1, fbh &
fav, fbh & fbv, fbh & f1, fbh & f2, fbh & x1,fbh &
x2, fbh & x3
6 Forces Joint : any of the
forces and angles can be solved for and any of the following
combinations : f4 & f6, f3 & f6, f3 & f1, f4 & f1, f2
& f1, f5 & f6, f5 & f1, angle 1 & f6, angle 2 &
f6, angle 3 & f6, angle 1 & f1, angle 2 & f1, angle 3 &
f1
3 Forces Joint : any of the
forces and angles can be solved for.