| A | B |
| structure | any object that provides support |
| structural strength | structure capacity of holding an object |
| structural stability | ability of structure to maintain position |
| force | push or pull to make an object move or change shape |
| solid structure | structure made of a solid piece |
| frame structure | structure of arrangment of rigid parts |
| shell structure | structure with outer surface |
| function | use or purpose of structure |
| Aesthetics | pleasing apearance or effect that object has |
| external force | force applied to object by something else |
| mass | amount of matter in object |
| centre of gravity | imaginary point in object where down force of gravity acts |
| symmetry | balanced arrangement of mass on either side of a line of plane |
| load | external force acting on object |
| static load | im-movable load |
| dynamic load | movable load |
| beam bridge | bridge supported by 1 or more beams |
| truss bridge | bridge supported by trusses |
| suspension bridge | bridge having roadway hung by cables |
| arch bridge | bridge supported by 1 or more arches |
| performance requirments | conditions that a structure must meet to show its performance |
| internal force | force one part of structure exerts on another |
| compression | force that acts to squeeze an object or push 2 objects together |
| tension | force that stretches or pulls apart an object |
| shear | force that pushes 2 objects apart |
| complementary forces | 2 or more forces acting on each other |
| arch | curved structure used in bridges and gates |
| beam | flat structure supported at both ends |
| I-beam | beam that has an I shaped cross section |
| girders | long structure in box shape |
| truss | framework of beams that form triangle |
| cantilever | structure supported at one end |
| column | solid upright cylindar structure |
| structural stress | effect of all forces acting on structure at same time |
| structural fatigue | weakening of structure because of internal and external forces |
| structural failure | break of structure from internal and external forces |
| Deformation | change of shape in structure from forces |
| friction | force that results of one object rubbing against another |
| margin of safety | safety limits of structure |
| Corrugation | forming material into wave like folds |
| lamination | process of gluing layers of materials together to make a strong bond |