Pratt Truss vs$.$ Full Warren Truss Load Analysis

The support reaction should be a quarter of the applied load if the weight is hung in the center of the bridge. Verify this with your measurements in load cell six.

For the Pratt Configuration: Using the method of sections, verify by calculations, the force in load cells F$1,$ F$2,$ and F$3,$ shown on the diagram above.

How do the loads in the diagonals differ between the Pratt truss and the Full Warren truss? Recognizing this difference, why is the center vertical member so differently loaded between the two trusses?

Full warren truss measured values

F$1=-14\mathrm{.}45$ N

F$2=6\mathrm{.}29$N

F$3=9\mathrm{.}45$N

F$4=-8\mathrm{.}67$N

F$5=5\mathrm{.}4$N

F$6=5\mathrm{.}47$N

Pratt truss meased values

F$1=-9\mathrm{.}75$ N

F$2=-4\mathrm{.}33$N

F$3=12\mathrm{.}8$ N

F$4=-1\mathrm{.}15$N

F$5=-5\mathrm{.}09$N

F$6=5\mathrm{.}16$N

Triangle measurements

Hypotnus $=18$ cm

Both sides$=12\mathrm{.}5$ cm

Angle$=45$ degrees

Please answer the load analysis.