What Engineers Do: An Outline of Construction |
Contents
CHAPTER PAGE | 21 |
How MATERIALS HAVE INFLUENCED CON | 32 |
THE STEEL AGE | 47 |
Copyright | |
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ancient angles arch bars Bascule Bridges beam bottom brick builders building built caisson called cantilever carry cement chain CHAPTER Chorobates civil engineering coffer-dam column concrete construction contour line contour map course crete cross hair curve dead load Dioptra distance driven earth Eddystone Lighthouse Egyptians elevation entirely erection example feet floor foundations frost line girder Greek Groma harden Hero of Alexandria highways hill horizontal I-beam inch known lake layer limestone masonry material measured metal method miles modern obelisk perhaps photographs piers piles pipe plate plumb bob Portland cement pressure railroad rails reinforced river riveted road rock Roman sand shape shown in Fig soil spans spread footing stone straight stream struc structural steel surface surveying surveyor suspension bridge telescope thick tion transit transitman truss truss bridge tunnel vertical Vitruvius walls weight wheel wire wood