ACROSS

2. A force within that squeezes or pushes.

4. Another name for a solid structure formed from a single unit.

5. Small piece used 2 reinforce seams/joints where tension forces act.

6. A structural element made up of a series of triangular frames.

8. The structural change caused by a torsion force acting within a structure.

12. Information organized by categories,often done on a computer.

14. A plan of how a product will be built.

16. A load caused by the force of gravity.

19. Structural change: external forces generate tension/compression in beams.

21. A structure formed from a single unit.

23. A static load;caused by gravity acts on all things in or on the structure.

24. 2 forces act in opposite directions along same plane in an object;causes damage.

25. Forces on structures;static loads caused by gravity,dynamic loads-by other forces.

26. A member that supports a structure.

27. Structure formed from components fastened together 4 support & strength.

29. It supports a structure;the dominant force within it is compression.

31. Measure structure's safeness,max. bearable live load/expected max. live load.

32. The regular pleating/rippling of a material,used 2 strengthen,i.e. cardboard.

33. An area 2 enter a category of information in a database.

34. Uses at least 1 beam supported at each end,sometimes with columns underneath.

35. Uses cables strung from towers 2 support bridge from above.

36. Process:product is intentionally designed 2 be replaced after a while.

DOWN

1. The load on a structure caused by a force other than gravity.

3. A description of the strength of a force.

7. Structure remains undamaged on its base withstanding intended forces=stable.

9. Frame bridge that uses triangular supports to support its load.

10. A stretching/pulling force within a structure.

11. Static load caused by gravity acting on structure's mass;structure's weight.

13. Formed in a curve,used to support an opening in a structure.

15. The point in an object where the mass is concentrated.

17. A twisting force within a structure; caused by opposite rotational forces.

18. Structural change caused by compression force,acts on beams,(wrinkling/pleating).

20. Uses at least 1 arch,2 support bridge from below/above.

22. Solid surface structure built around hollow area;relies on arches 2 bear loads.

24. A section of bridge that lies between 2 supports.

27. Device that holds 2 or more pieces of material together.

28. Permanent, non-reversable change in a structure caused by forces.

30. 2 or more layers of material fastened together 2 make material stronger.

32. Bridge relies on masses at either end 2 support the middle span.