evolution of bridge technology - Structural Engineering Institute

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Two Dominating Materials in the History of Bridge Construction are: Stone & Steel Dominating influence
2000 BC Two main eras in bridge evolution: Arch Era 2000BC– 1850AD Almost 4000 years Contemporary Era 1850AD - now Only about 160 years Roman Empire Stone & Steel Arch Era 1850 AD Contemporary Era 2008 AD
Page 1 and 2: ASCE/SEI Workshop, Washington DC, F
Page 3 and 4: Evolution: Human beings started bui
Page 5 and 6: In the several thousand years since
Page 8 and 9: Extradosed Bridge is a combination
Page 10 and 11: Franz Dishcinger proposed this comb
Page 12 and 13: All four types of bridges have exis
Page 14 and 15: All four types of bridge have exist
Page 16 and 17: Because we have not invented anythi
Page 18 and 19: Today’s bridges Bigger, stronger,
Page 20 and 21: What affect the evolution of bridge
Page 22 and 23: What affect the evolution of bridge
Page 24 and 25: They did it empirically! Structural
Page 26 and 27: They did it empirically! Structural
Page 28 and 29: Creation of a bridge - A Flow Chart
Page 32 and 33: ARCH ERA Stone
Page 34 and 35: Arch is the only bridge type that d
Page 36 and 37: The Romans built many spectacular a
Page 38 and 39: The Romans built many spectacular a
Page 40 and 41: Semi-circular vs Segmental 18.5m 7m
Page 42 and 43: The Romans were really masters on s
Page 44 and 45: Contemporary Era From 1850 until no
Page 46 and 47: There was a transition period that
Page 48 and 49: The Chinese started building iron c
Page 50 and 51: A bridge in Tibet
Page 52 and 53: Iron arch bridges was popular for a
Page 54 and 55: Menai Bridge - the first major susp
Page 56 and 57: Steel Mass production processes wer
Page 58 and 59: Steel Mass production processes wer
Page 60 and 61: The Brooklyn Bridge, New York City
Page 62 and 63: Then came A tale of three bridges,
Page 64 and 65: Competition of Span Lengths Span Ye
Page 66 and 67: Long span suspension bridges became
Page 68 and 69: Golden Gate 1280m, 1937 Verranzano
Page 70 and 71: Span Length (m) 2500 2000 1500 1000
Page 72 and 73: The two giants: Messina 3,300m Gibr
Page 74 and 75: High Strength Wires also made cable
Page 76 and 77: Three World Record Spans within 60k
Page 78 and 79: High Strength Steel also made prest
Page 80 and 81:
Two Significant Prestressed Concret
Page 82 and 83:
SPAN LENGTH (m ) 跨度 350 300 250
Page 84 and 85:
Effect of Materials on Evolution of
Page 86 and 87:
Evolution: 1. What was the most imp
Page 88 and 89:
Aerodynamics Most early suspension
Page 90 and 91:
Aerodynamics Most early suspension
Page 92 and 93:
Engineering is an art, not a scienc
Page 94 and 95:
But Evolution of bridge technology
Page 96 and 97:
Page 98 and 99:
COSTS: Planning Right of Way Constr
Page 100 and 101:
As our society progresses, the livi
Page 102 and 103:
As our society progresses, the livi
Page 104 and 105:
Page 106 and 107:
Page 108 and 109:
Page 110 and 111:
Tot al Lengt h ( km) 90000 80000 70
Page 112 and 113:
My last question today: Currently,
Page 114 and 115:
My last question today: Currently,
Page 116 and 117:
Here is a historic record of HAIR.
Page 118 and 119:
Coming back to My last question tod
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evolution of bridge technology - Structural Engineering Institute

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