Structural Design Vocab

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Across
  1. 5. concrete is extremely weak under _________
  2. 9. the ratio of how much force a structure is designed to withstand to how much force a structure needs to withstand
  3. 11. particles added to concrete mixture to add density and provide a rough surface to bond to
  4. 12. type of material that is as strong in one direction as it is in other directions
  5. 16. grey powder that turns into a paste when mixed with water; the glue that holds concrete together
  6. 17. type of material that is stronger in one direction than it is in another direction
  7. 18. used as coarse aggregate
  8. 19. forces on a structure that change due to the unpredictability of external conditions
  9. 20. ratio between the lengths of the arms of a lever AND the two forces on a lever
Down
  1. 1. concrete is extremely strong under _________
  2. 2. mixture commonly used in construction
  3. 3. the weight of any part of a structure itself (cannot change)
  4. 4. the force exerted by anything on or in a structure
  5. 6. forces on a structure that are constant and do not move as a result of unpredictability
  6. 7. used as fine aggregate
  7. 8. a twisting force
  8. 10. force that results in one side of a structure being under compression and the other side being under tension
  9. 13. cutting force that results from one end of a structure being pushed in an opposite direction than the other end
  10. 14. combination of all forces acting on a structure
  11. 15. bottom part of a building that concrete is commonly used to make