WEIGHT OF ROOFING TRUSS

OBSERVE THE FOLLOWING SKETCH CAREFULLY.

WE NEED TO FIND OUT THE WEIGHT OF 50 SUCH TRUSSES.Picture9

STEP 01:

  • FIND OUT LENGTH OF ANGLE AC :
  • BY USING THE PYTHAGOROUS FORMULA)
  • UNKNOWN LENGTH AC =
  • SQRT ( 0.6 X0.6 + 1.5 X1.5) = 1.615 M

STEP 02:

  • FIND OUT TOTAL LENGTH OF ANGLE USED:
  • TOTAL LENGTH: 1.615 +0.6 +1.5+0.3 =4.015 M
  • STEP 03:
  • WEIGHT OF ANGLE 50 X50 X 5: 3.8 KG/M
  • TRUSS WEIGHT = 4.015 X 3.8 =15.257 KG
  • TOTAL WEIGHT OF 50 TRUSSES:
  •    50 X 15.257 = 762.85KG
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