Question

THIS ASSIGNMENT CONTRIBUTES TO YOUR COURSE MARK. Given the forces P = 2.4 kN and Q = 4.6 kN and the height L = 12 m:

THIS ASSIGNMENT CONTRIBUTES TO YOUR COURSE MARK Q KN L m P kN P kN Given the forces P = 2.4 kN and Q = 4.6 kN and the height L = 12 m: 4 m 8 m 8 m 4 m How many zero force members are in this truss? Determine the forces in each member of the truss shown below Answers (tolerance 0.2 kN, enter magnitude and units, sign convention answered separately) FAB= Number Units lension or Compression (magnitude only) Tension Compression FBCNumber Units (magnitude only) Tension or Compression? Tension Compression Units FAC Number (magnitude only) Tension or Compression? Tension Units FcoNumber (magnitude only) Tension or Compression? Tension Compression FADNumber Units (magnitude only) Tension or Compression? Tension Compression Units FAE Number (magnitude only) Tension or Compression? Tension

Answer 1

2.4kN 12m 24K시 Re 4 Calculation of support Reactione Re = 4.1 KN Tdentfying zero-force member There ase no-zero force member found by inspection Tdentifying the symmetry Truss is symmetrica) about axis AM Hence no- need of analysing complete truss talF Portion analys ts Suficient

sing method of loints FAB FAB 243.394 KN Sin 45 ス4 sib 225 Sin 46° 2.4kN AC Fec Fcb Re FACE-4.7 5 648 KN Sin (56.31。) Puting this in FCDO-7329 KN . Forces im omembers. Nature Forces Members A B B C A C CD AD A E DE 3.394 KN 2.4 KN 5 648 KN 0 7329 KN Hensile eompressive Compressive tensile 5 648 EN compress ive 3 394 kN 2.4 KN tensile compressive