ENGINEERING
DESTRUCTIVE BRIDGE TESTING
TESTING APPARATUS
• TESTING PLATE • BUCKET AND CHAIN
•SAND •SCALE
TESTING PLATE
MADE OF WOOD WITH A METAL HOOK
SPANS ROAD BED
ADDING WEIGHT
• ADD SAND TO BUCKET
• SAND IS ADDED UNTIL BRIDGE THE COLAPSES
WHAT TO LOOK FOR?
TYPES OF BRIDGE FAILURE
TYPES OF BRIDGE FAILURE
HOW IS THIS GRADED?
EACH BRIDGE TESTED TO SEE HOW MUCH WEIGHT THEY HOLD.
BEST BRIDGE RECEIVES A GRADE OF 100% 2 POINTS LESS FOR EVERY BRIDGE THERE AFTER